Merge pull request #21793 from github/release-prep/2.25.4

Release preparation for version 2.25.4

MODULE.bazel

@@ -27,7 +27,7 @@ bazel_dep(name = "abseil-cpp", version = "20260107.1", repo_name = "absl")
 bazel_dep(name = "nlohmann_json", version = "3.11.3", repo_name = "json")
 bazel_dep(name = "fmt", version = "12.1.0-codeql.1")
 bazel_dep(name = "rules_kotlin", version = "2.2.2-codeql.1")
-bazel_dep(name = "gazelle", version = "0.47.0")
+bazel_dep(name = "gazelle", version = "0.50.0")
 bazel_dep(name = "rules_dotnet", version = "0.21.5-codeql.1")
 bazel_dep(name = "googletest", version = "1.17.0.bcr.2")
 bazel_dep(name = "rules_rust", version = "0.69.0")

actions/ql/lib/CHANGELOG.md

@@ -1,3 +1,13 @@
+## 0.4.35
+
+No user-facing changes.
+
+## 0.4.34
+
+### Minor Analysis Improvements
+
+* Removed false positive injection sink models for the `context` input of `docker/build-push-action` and the `allowed-endpoints` input of `step-security/harden-runner`.
+
 ## 0.4.33
 
 No user-facing changes.

actions/ql/lib/change-notes/released/0.4.34.md

@@ -0,0 +1,5 @@
+## 0.4.34
+
+### Minor Analysis Improvements
+
+* Removed false positive injection sink models for the `context` input of `docker/build-push-action` and the `allowed-endpoints` input of `step-security/harden-runner`.

actions/ql/lib/change-notes/released/0.4.35.md

@@ -0,0 +1,3 @@
+## 0.4.35
+
+No user-facing changes.

actions/ql/lib/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 0.4.33
+lastReleaseVersion: 0.4.35

actions/ql/lib/ext/manual/docker_build-push-action.model.yml

@@ -1,6 +0,0 @@
-extensions:
-  - addsTo:
-      pack: codeql/actions-all
-      extensible: actionsSinkModel
-    data:
-      - ["docker/build-push-action", "*", "input.context", "code-injection", "manual"]

actions/ql/lib/ext/manual/step-security_harden-runner.model.yml

@@ -1,6 +0,0 @@
-extensions:
-  - addsTo:
-      pack: codeql/actions-all
-      extensible: actionsSinkModel
-    data:
-      - ["step-security/harden-runner", "*", "input.allowed-endpoints", "command-injection", "manual"]

actions/ql/lib/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/actions-all
-version: 0.4.33
+version: 0.4.35
 library: true
 warnOnImplicitThis: true
 dependencies:

actions/ql/src/CHANGELOG.md

@@ -1,3 +1,17 @@
+## 0.6.27
+
+No user-facing changes.
+
+## 0.6.26
+
+### Major Analysis Improvements
+
+* Fixed alert messages in `actions/artifact-poisoning/critical` and `actions/artifact-poisoning/medium` as they previously included a redundant placeholder in the alert message that would on occasion contain a long block of yml that makes the alert difficult to understand. Also improved the wording to make it clearer that it is not the artifact that is being poisoned, but instead a potentially untrusted artifact that is consumed. Finally, changed the alert location to be the source, to align more with other queries reporting an artifact (e.g. zipslip) which is more useful.
+
+### Minor Analysis Improvements
+
+* The query `actions/missing-workflow-permissions` no longer produces false positive results on reusable workflows where all callers set permissions.
+
 ## 0.6.25
 
 No user-facing changes.

actions/ql/src/Security/CWE-275/MissingActionsPermissions.ql

@@ -26,10 +26,23 @@ string permissionsForJob(Job job) {
     "{" + concat(string permission | permission = jobNeedsPermission(job) | permission, ", ") + "}"
 }
 
+predicate jobHasPermissions(Job job) {
+  exists(job.getPermissions())
+  or
+  exists(job.getEnclosingWorkflow().getPermissions())
+  or
+  // The workflow is reusable and cannot be triggered in any other way; check callers
+  exists(ReusableWorkflow r | r = job.getEnclosingWorkflow() |
+    not exists(Event e | e = r.getOn().getAnEvent() | e.getName() != "workflow_call") and
+    forall(Job caller | caller = job.getEnclosingWorkflow().(ReusableWorkflow).getACaller() |
+      jobHasPermissions(caller)
+    )
+  )
+}
+
 from Job job, string permissions
 where
-  not exists(job.getPermissions()) and
-  not exists(job.getEnclosingWorkflow().getPermissions()) and
+  not jobHasPermissions(job) and
   // exists a trigger event that is not a workflow_call
   exists(Event e |
     e = job.getATriggerEvent() and

actions/ql/src/Security/CWE-829/ArtifactPoisoningCritical.ql

@@ -20,6 +20,6 @@ from ArtifactPoisoningFlow::PathNode source, ArtifactPoisoningFlow::PathNode sin
 where
   ArtifactPoisoningFlow::flowPath(source, sink) and
   event = getRelevantEventInPrivilegedContext(sink.getNode())
-select sink.getNode(), source, sink,
-  "Potential artifact poisoning in $@, which may be controlled by an external user ($@).", sink,
-  sink.getNode().toString(), event, event.getName()
+select source.getNode(), source, sink,
+  "Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@).",
+  event, event.getName()

actions/ql/src/Security/CWE-829/ArtifactPoisoningMedium.ql

@@ -20,6 +20,5 @@ from ArtifactPoisoningFlow::PathNode source, ArtifactPoisoningFlow::PathNode sin
 where
   ArtifactPoisoningFlow::flowPath(source, sink) and
   inNonPrivilegedContext(sink.getNode().asExpr())
-select sink.getNode(), source, sink,
-  "Potential artifact poisoning in $@, which may be controlled by an external user.", sink,
-  sink.getNode().toString()
+select source.getNode(), source, sink,
+  "Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user."

actions/ql/src/change-notes/released/0.6.26.md

@@ -0,0 +1,9 @@
+## 0.6.26
+
+### Major Analysis Improvements
+
+* Fixed alert messages in `actions/artifact-poisoning/critical` and `actions/artifact-poisoning/medium` as they previously included a redundant placeholder in the alert message that would on occasion contain a long block of yml that makes the alert difficult to understand. Also improved the wording to make it clearer that it is not the artifact that is being poisoned, but instead a potentially untrusted artifact that is consumed. Finally, changed the alert location to be the source, to align more with other queries reporting an artifact (e.g. zipslip) which is more useful.
+
+### Minor Analysis Improvements
+
+* The query `actions/missing-workflow-permissions` no longer produces false positive results on reusable workflows where all callers set permissions.

actions/ql/src/change-notes/released/0.6.27.md

@@ -0,0 +1,3 @@
+## 0.6.27
+
+No user-facing changes.

actions/ql/src/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 0.6.25
+lastReleaseVersion: 0.6.27

actions/ql/src/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/actions-queries
-version: 0.6.25
+version: 0.6.27
 library: false
 warnOnImplicitThis: true
 groups: [actions, queries]

actions/ql/test/query-tests/Security/CWE-275/.github/workflows/perms11.yml

@@ -0,0 +1,9 @@
+on:
+  workflow_call:
+
+jobs:
+  build:
+    name: Build and test
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/deploy-pages

actions/ql/test/query-tests/Security/CWE-275/.github/workflows/perms12.yml

@@ -0,0 +1,11 @@
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  id-token: write
+  pages: write
+
+jobs:
+  call-workflow:
+    uses: ./.github/workflows/perms11.yml

actions/ql/test/query-tests/Security/CWE-829/ArtifactPoisoningCritical.expected

@@ -55,21 +55,21 @@ nodes
 | .github/workflows/test25.yml:39:14:40:45 | ./gradlew buildScanPublishPrevious\n | semmle.label | ./gradlew buildScanPublishPrevious\n |
 subpaths
 #select
-| .github/workflows/artifactpoisoning11.yml:38:11:38:77 | ./sonarcloud-data/x.py build -j$(nproc) --compiler gcc --skip-build | .github/workflows/artifactpoisoning11.yml:13:9:32:6 | Uses Step | .github/workflows/artifactpoisoning11.yml:38:11:38:77 | ./sonarcloud-data/x.py build -j$(nproc) --compiler gcc --skip-build | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning11.yml:38:11:38:77 | ./sonarcloud-data/x.py build -j$(nproc) --compiler gcc --skip-build | ./sonarcloud-data/x.py build -j$(nproc) --compiler gcc --skip-build | .github/workflows/artifactpoisoning11.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning12.yml:38:11:38:25 | python foo/x.py | .github/workflows/artifactpoisoning12.yml:13:9:32:6 | Uses Step | .github/workflows/artifactpoisoning12.yml:38:11:38:25 | python foo/x.py | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning12.yml:38:11:38:25 | python foo/x.py | python foo/x.py | .github/workflows/artifactpoisoning12.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning21.yml:19:14:20:21 | sh foo/cmd\n | .github/workflows/artifactpoisoning21.yml:13:9:18:6 | Uses Step | .github/workflows/artifactpoisoning21.yml:19:14:20:21 | sh foo/cmd\n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning21.yml:19:14:20:21 | sh foo/cmd\n | sh foo/cmd\n | .github/workflows/artifactpoisoning21.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning22.yml:18:14:18:19 | sh cmd | .github/workflows/artifactpoisoning22.yml:13:9:17:6 | Uses Step | .github/workflows/artifactpoisoning22.yml:18:14:18:19 | sh cmd | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning22.yml:18:14:18:19 | sh cmd | sh cmd | .github/workflows/artifactpoisoning22.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning31.yml:19:14:19:22 | ./foo/cmd | .github/workflows/artifactpoisoning31.yml:13:9:15:6 | Run Step | .github/workflows/artifactpoisoning31.yml:19:14:19:22 | ./foo/cmd | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning31.yml:19:14:19:22 | ./foo/cmd | ./foo/cmd | .github/workflows/artifactpoisoning31.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning32.yml:17:14:18:20 | ./bar/cmd\n | .github/workflows/artifactpoisoning32.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning32.yml:17:14:18:20 | ./bar/cmd\n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning32.yml:17:14:18:20 | ./bar/cmd\n | ./bar/cmd\n | .github/workflows/artifactpoisoning32.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning33.yml:17:14:18:20 | ./bar/cmd\n | .github/workflows/artifactpoisoning33.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning33.yml:17:14:18:20 | ./bar/cmd\n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning33.yml:17:14:18:20 | ./bar/cmd\n | ./bar/cmd\n | .github/workflows/artifactpoisoning33.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning34.yml:20:14:22:23 | npm install\nnpm run lint\n | .github/workflows/artifactpoisoning34.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning34.yml:20:14:22:23 | npm install\nnpm run lint\n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning34.yml:20:14:22:23 | npm install\nnpm run lint\n | npm install\nnpm run lint\n | .github/workflows/artifactpoisoning34.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning41.yml:22:14:22:22 | ./foo/cmd | .github/workflows/artifactpoisoning41.yml:13:9:21:6 | Run Step | .github/workflows/artifactpoisoning41.yml:22:14:22:22 | ./foo/cmd | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning41.yml:22:14:22:22 | ./foo/cmd | ./foo/cmd | .github/workflows/artifactpoisoning41.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning42.yml:22:14:22:18 | ./cmd | .github/workflows/artifactpoisoning42.yml:13:9:21:6 | Run Step | .github/workflows/artifactpoisoning42.yml:22:14:22:18 | ./cmd | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning42.yml:22:14:22:18 | ./cmd | ./cmd | .github/workflows/artifactpoisoning42.yml:4:3:4:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning71.yml:17:14:18:40 | sed -f config foo.md > bar.md\n | .github/workflows/artifactpoisoning71.yml:9:9:16:6 | Uses Step | .github/workflows/artifactpoisoning71.yml:17:14:18:40 | sed -f config foo.md > bar.md\n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning71.yml:17:14:18:40 | sed -f config foo.md > bar.md\n | sed -f config foo.md > bar.md\n | .github/workflows/artifactpoisoning71.yml:4:5:4:16 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning81.yml:31:14:31:27 | python test.py | .github/workflows/artifactpoisoning81.yml:28:9:31:6 | Uses Step | .github/workflows/artifactpoisoning81.yml:31:14:31:27 | python test.py | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning81.yml:31:14:31:27 | python test.py | python test.py | .github/workflows/artifactpoisoning81.yml:3:5:3:23 | pull_request_target | pull_request_target |
-| .github/workflows/artifactpoisoning92.yml:28:9:29:6 | Uses Step | .github/actions/download-artifact-2/action.yaml:6:7:25:4 | Uses Step | .github/workflows/artifactpoisoning92.yml:28:9:29:6 | Uses Step | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning92.yml:28:9:29:6 | Uses Step | Uses Step | .github/workflows/artifactpoisoning92.yml:3:3:3:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning92.yml:29:14:29:26 | make snapshot | .github/actions/download-artifact-2/action.yaml:6:7:25:4 | Uses Step | .github/workflows/artifactpoisoning92.yml:29:14:29:26 | make snapshot | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning92.yml:29:14:29:26 | make snapshot | make snapshot | .github/workflows/artifactpoisoning92.yml:3:3:3:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning96.yml:18:14:18:24 | npm install | .github/workflows/artifactpoisoning96.yml:13:9:18:6 | Uses Step | .github/workflows/artifactpoisoning96.yml:18:14:18:24 | npm install | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning96.yml:18:14:18:24 | npm install | npm install | .github/workflows/artifactpoisoning96.yml:2:3:2:14 | workflow_run | workflow_run |
-| .github/workflows/artifactpoisoning101.yml:17:14:19:59 | PR_NUMBER=$(./get_pull_request_number.sh pr_number.txt)\necho "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT \n | .github/workflows/artifactpoisoning101.yml:10:9:16:6 | Uses Step | .github/workflows/artifactpoisoning101.yml:17:14:19:59 | PR_NUMBER=$(./get_pull_request_number.sh pr_number.txt)\necho "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT \n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/artifactpoisoning101.yml:17:14:19:59 | PR_NUMBER=$(./get_pull_request_number.sh pr_number.txt)\necho "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT \n | PR_NUMBER=$(./get_pull_request_number.sh pr_number.txt)\necho "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT \n | .github/workflows/artifactpoisoning101.yml:4:3:4:21 | pull_request_target | pull_request_target |
-| .github/workflows/test18.yml:36:15:40:58 | Uses Step | .github/workflows/test18.yml:12:15:33:12 | Uses Step | .github/workflows/test18.yml:36:15:40:58 | Uses Step | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/test18.yml:36:15:40:58 | Uses Step | Uses Step | .github/workflows/test18.yml:3:5:3:16 | workflow_run | workflow_run |
-| .github/workflows/test25.yml:39:14:40:45 | ./gradlew buildScanPublishPrevious\n | .github/workflows/test25.yml:22:9:32:6 | Uses Step: downloadBuildScan | .github/workflows/test25.yml:39:14:40:45 | ./gradlew buildScanPublishPrevious\n | Potential artifact poisoning in $@, which may be controlled by an external user ($@). | .github/workflows/test25.yml:39:14:40:45 | ./gradlew buildScanPublishPrevious\n | ./gradlew buildScanPublishPrevious\n | .github/workflows/test25.yml:2:3:2:14 | workflow_run | workflow_run |
+| .github/actions/download-artifact-2/action.yaml:6:7:25:4 | Uses Step | .github/actions/download-artifact-2/action.yaml:6:7:25:4 | Uses Step | .github/workflows/artifactpoisoning92.yml:28:9:29:6 | Uses Step | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning92.yml:3:3:3:14 | workflow_run | workflow_run |
+| .github/actions/download-artifact-2/action.yaml:6:7:25:4 | Uses Step | .github/actions/download-artifact-2/action.yaml:6:7:25:4 | Uses Step | .github/workflows/artifactpoisoning92.yml:29:14:29:26 | make snapshot | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning92.yml:3:3:3:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning11.yml:13:9:32:6 | Uses Step | .github/workflows/artifactpoisoning11.yml:13:9:32:6 | Uses Step | .github/workflows/artifactpoisoning11.yml:38:11:38:77 | ./sonarcloud-data/x.py build -j$(nproc) --compiler gcc --skip-build | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning11.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning12.yml:13:9:32:6 | Uses Step | .github/workflows/artifactpoisoning12.yml:13:9:32:6 | Uses Step | .github/workflows/artifactpoisoning12.yml:38:11:38:25 | python foo/x.py | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning12.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning21.yml:13:9:18:6 | Uses Step | .github/workflows/artifactpoisoning21.yml:13:9:18:6 | Uses Step | .github/workflows/artifactpoisoning21.yml:19:14:20:21 | sh foo/cmd\n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning21.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning22.yml:13:9:17:6 | Uses Step | .github/workflows/artifactpoisoning22.yml:13:9:17:6 | Uses Step | .github/workflows/artifactpoisoning22.yml:18:14:18:19 | sh cmd | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning22.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning31.yml:13:9:15:6 | Run Step | .github/workflows/artifactpoisoning31.yml:13:9:15:6 | Run Step | .github/workflows/artifactpoisoning31.yml:19:14:19:22 | ./foo/cmd | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning31.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning32.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning32.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning32.yml:17:14:18:20 | ./bar/cmd\n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning32.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning33.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning33.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning33.yml:17:14:18:20 | ./bar/cmd\n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning33.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning34.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning34.yml:13:9:16:6 | Run Step | .github/workflows/artifactpoisoning34.yml:20:14:22:23 | npm install\nnpm run lint\n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning34.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning41.yml:13:9:21:6 | Run Step | .github/workflows/artifactpoisoning41.yml:13:9:21:6 | Run Step | .github/workflows/artifactpoisoning41.yml:22:14:22:22 | ./foo/cmd | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning41.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning42.yml:13:9:21:6 | Run Step | .github/workflows/artifactpoisoning42.yml:13:9:21:6 | Run Step | .github/workflows/artifactpoisoning42.yml:22:14:22:18 | ./cmd | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning42.yml:4:3:4:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning71.yml:9:9:16:6 | Uses Step | .github/workflows/artifactpoisoning71.yml:9:9:16:6 | Uses Step | .github/workflows/artifactpoisoning71.yml:17:14:18:40 | sed -f config foo.md > bar.md\n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning71.yml:4:5:4:16 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning81.yml:28:9:31:6 | Uses Step | .github/workflows/artifactpoisoning81.yml:28:9:31:6 | Uses Step | .github/workflows/artifactpoisoning81.yml:31:14:31:27 | python test.py | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning81.yml:3:5:3:23 | pull_request_target | pull_request_target |
+| .github/workflows/artifactpoisoning96.yml:13:9:18:6 | Uses Step | .github/workflows/artifactpoisoning96.yml:13:9:18:6 | Uses Step | .github/workflows/artifactpoisoning96.yml:18:14:18:24 | npm install | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning96.yml:2:3:2:14 | workflow_run | workflow_run |
+| .github/workflows/artifactpoisoning101.yml:10:9:16:6 | Uses Step | .github/workflows/artifactpoisoning101.yml:10:9:16:6 | Uses Step | .github/workflows/artifactpoisoning101.yml:17:14:19:59 | PR_NUMBER=$(./get_pull_request_number.sh pr_number.txt)\necho "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT \n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/artifactpoisoning101.yml:4:3:4:21 | pull_request_target | pull_request_target |
+| .github/workflows/test18.yml:12:15:33:12 | Uses Step | .github/workflows/test18.yml:12:15:33:12 | Uses Step | .github/workflows/test18.yml:36:15:40:58 | Uses Step | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/test18.yml:3:5:3:16 | workflow_run | workflow_run |
+| .github/workflows/test25.yml:22:9:32:6 | Uses Step: downloadBuildScan | .github/workflows/test25.yml:22:9:32:6 | Uses Step: downloadBuildScan | .github/workflows/test25.yml:39:14:40:45 | ./gradlew buildScanPublishPrevious\n | Potential artifact poisoning; the artifact being consumed has contents that may be controlled by an external user ($@). | .github/workflows/test25.yml:2:3:2:14 | workflow_run | workflow_run |

cpp/ql/integration-tests/query-suite/cpp-code-scanning.qls.expected

@@ -7,10 +7,12 @@ ql/cpp/ql/src/Diagnostics/ExtractedFiles.ql
 ql/cpp/ql/src/Diagnostics/ExtractionWarnings.ql
 ql/cpp/ql/src/Diagnostics/FailedExtractorInvocations.ql
 ql/cpp/ql/src/Likely Bugs/Arithmetic/BadAdditionOverflowCheck.ql
+ql/cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql
 ql/cpp/ql/src/Likely Bugs/Arithmetic/SignedOverflowCheck.ql
 ql/cpp/ql/src/Likely Bugs/Conversion/CastArrayPointerArithmetic.ql
 ql/cpp/ql/src/Likely Bugs/Format/SnprintfOverflow.ql
 ql/cpp/ql/src/Likely Bugs/Format/WrongNumberOfFormatArguments.ql
+ql/cpp/ql/src/Likely Bugs/Format/WrongTypeFormatArguments.ql
 ql/cpp/ql/src/Likely Bugs/Memory Management/AllocaInLoop.ql
 ql/cpp/ql/src/Likely Bugs/Memory Management/PointerOverflow.ql
 ql/cpp/ql/src/Likely Bugs/Memory Management/ReturnStackAllocatedMemory.ql
@@ -28,6 +30,7 @@ ql/cpp/ql/src/Security/CWE/CWE-120/VeryLikelyOverrunWrite.ql
 ql/cpp/ql/src/Security/CWE/CWE-131/NoSpaceForZeroTerminator.ql
 ql/cpp/ql/src/Security/CWE/CWE-134/UncontrolledFormatString.ql
 ql/cpp/ql/src/Security/CWE/CWE-190/ArithmeticUncontrolled.ql
+ql/cpp/ql/src/Security/CWE/CWE-190/ComparisonWithWiderType.ql
 ql/cpp/ql/src/Security/CWE/CWE-191/UnsignedDifferenceExpressionComparedZero.ql
 ql/cpp/ql/src/Security/CWE/CWE-253/HResultBooleanConversion.ql
 ql/cpp/ql/src/Security/CWE/CWE-311/CleartextFileWrite.ql
@@ -40,6 +43,7 @@ ql/cpp/ql/src/Security/CWE/CWE-367/TOCTOUFilesystemRace.ql
 ql/cpp/ql/src/Security/CWE/CWE-416/IteratorToExpiredContainer.ql
 ql/cpp/ql/src/Security/CWE/CWE-416/UseOfStringAfterLifetimeEnds.ql
 ql/cpp/ql/src/Security/CWE/CWE-416/UseOfUniquePointerAfterLifetimeEnds.ql
+ql/cpp/ql/src/Security/CWE/CWE-468/SuspiciousAddWithSizeof.ql
 ql/cpp/ql/src/Security/CWE/CWE-497/ExposedSystemData.ql
 ql/cpp/ql/src/Security/CWE/CWE-611/XXE.ql
 ql/cpp/ql/src/Security/CWE/CWE-676/DangerousFunctionOverflow.ql

cpp/ql/lib/CHANGELOG.md

@@ -1,3 +1,25 @@
+## 10.1.0
+
+### New Features
+
+* A new predicate `getSwitchCase` was added to the `SwitchStmt` class, which yields the `n`th `case` statement from a `switch` statement.
+* Data flow barriers and barrier guards can now be added using data extensions. For more information see [Customizing library models for C and C++](https://codeql.github.com/docs/codeql-language-guides/customizing-library-models-for-cpp/).
+
+### Minor Analysis Improvements
+
+* Added taint flow models for the `Strsafe.h` header from the Windows SDK.
+
+## 10.0.0
+
+### Breaking Changes
+
+* The deprecated `NonThrowingFunction` class has been removed, use `NonCppThrowingFunction` instead.
+* The deprecated `ThrowingFunction` class has been removed, use `AlwaysSehThrowingFunction` instead.
+
+### New Features
+
+* Added a subclass `AutoconfConfigureTestFile` of `ConfigurationTestFile` that represents files created by GNU autoconf configure scripts to test the build configuration.
+
 ## 9.0.0
 
 ### Breaking Changes

cpp/ql/lib/change-notes/released/10.0.0.md

@@ -0,0 +1,10 @@
+## 10.0.0
+
+### Breaking Changes
+
+* The deprecated `NonThrowingFunction` class has been removed, use `NonCppThrowingFunction` instead.
+* The deprecated `ThrowingFunction` class has been removed, use `AlwaysSehThrowingFunction` instead.
+
+### New Features
+
+* Added a subclass `AutoconfConfigureTestFile` of `ConfigurationTestFile` that represents files created by GNU autoconf configure scripts to test the build configuration.

cpp/ql/lib/change-notes/released/10.1.0.md

@@ -0,0 +1,10 @@
+## 10.1.0
+
+### New Features
+
+* A new predicate `getSwitchCase` was added to the `SwitchStmt` class, which yields the `n`th `case` statement from a `switch` statement.
+* Data flow barriers and barrier guards can now be added using data extensions. For more information see [Customizing library models for C and C++](https://codeql.github.com/docs/codeql-language-guides/customizing-library-models-for-cpp/).
+
+### Minor Analysis Improvements
+
+* Added taint flow models for the `Strsafe.h` header from the Windows SDK.

cpp/ql/lib/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 9.0.0
+lastReleaseVersion: 10.1.0

cpp/ql/lib/ext/Strsafe.model.yml

@@ -0,0 +1,94 @@
+# Models for strsafe.h safe string functions
+extensions:
+  - addsTo:
+      pack: codeql/cpp-all
+      extensible: sourceModel
+    data: # namespace, type, subtypes, name, signature, ext, output, kind, provenance
+      # StringCchGets: (pszDest, cchDest)
+      - ["", "", False, "StringCchGetsA", "", "", "Argument[*0]", "local", "manual"]
+      - ["", "", False, "StringCchGetsW", "", "", "Argument[*0]", "local", "manual"]
+      # StringCbGets: (pszDest, cbDest)
+      - ["", "", False, "StringCbGetsA", "", "", "Argument[*0]", "local", "manual"]
+      - ["", "", False, "StringCbGetsW", "", "", "Argument[*0]", "local", "manual"]
+      # StringCchGetsEx: (pszDest, cchDest, ppszDestEnd, pcchRemaining, dwFlags)
+      - ["", "", False, "StringCchGetsExA", "", "", "Argument[*0]", "local", "manual"]
+      - ["", "", False, "StringCchGetsExW", "", "", "Argument[*0]", "local", "manual"]
+      # StringCbGetsEx: (pszDest, cbDest, ppszDestEnd, pcbRemaining, dwFlags)
+      - ["", "", False, "StringCbGetsExA", "", "", "Argument[*0]", "local", "manual"]
+      - ["", "", False, "StringCbGetsExW", "", "", "Argument[*0]", "local", "manual"]
+  - addsTo:
+      pack: codeql/cpp-all
+      extensible: summaryModel
+    data: # namespace, type, subtypes, name, signature, ext, input, output, kind, provenance
+      # StringCchCopy: (pszDest, cchDest, pszSrc)
+      - ["", "", False, "StringCchCopyA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCopyW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCopy: (pszDest, cbDest, pszSrc)
+      - ["", "", False, "StringCbCopyA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCopyW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCopyEx: (pszDest, cchDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags)
+      - ["", "", False, "StringCchCopyExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCopyExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCopyEx: (pszDest, cbDest, pszSrc, ppszDestEnd, pcbRemaining, dwFlags)
+      - ["", "", False, "StringCbCopyExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCopyExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCopyN: (pszDest, cchDest, pszSrc, cchToCopy)
+      - ["", "", False, "StringCchCopyNA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCopyNW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCopyN: (pszDest, cbDest, pszSrc, cbToCopy)
+      - ["", "", False, "StringCbCopyNA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCopyNW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCopyNEx: (pszDest, cchDest, pszSrc, cchToCopy, ppszDestEnd, pcchRemaining, dwFlags)
+      - ["", "", False, "StringCchCopyNExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCopyNExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCopyNEx: (pszDest, cbDest, pszSrc, cbToCopy, ppszDestEnd, pcbRemaining, dwFlags)
+      - ["", "", False, "StringCbCopyNExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCopyNExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCat: (pszDest, cchDest, pszSrc)
+      - ["", "", False, "StringCchCatA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCatW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCat: (pszDest, cbDest, pszSrc)
+      - ["", "", False, "StringCbCatA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCatW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCatEx: (pszDest, cchDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags)
+      - ["", "", False, "StringCchCatExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCatExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCatEx: (pszDest, cbDest, pszSrc, ppszDestEnd, pcbRemaining, dwFlags)
+      - ["", "", False, "StringCbCatExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCatExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCatN: (pszDest, cchDest, pszSrc, cchToAppend)
+      - ["", "", False, "StringCchCatNA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCatNW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCatN: (pszDest, cbDest, pszSrc, cbToAppend)
+      - ["", "", False, "StringCbCatNA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCatNW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchCatNEx: (pszDest, cchDest, pszSrc, cchToAppend, ppszDestEnd, pcchRemaining, dwFlags)
+      - ["", "", False, "StringCchCatNExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchCatNExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbCatNEx: (pszDest, cbDest, pszSrc, cbToAppend, ppszDestEnd, pcbRemaining, dwFlags)
+      - ["", "", False, "StringCbCatNExA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbCatNExW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchPrintf: (pszDest, cchDest, pszFormat, ...)
+      - ["", "", False, "StringCchPrintfA", "", "", "Argument[*2..8]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchPrintfW", "", "", "Argument[*2..8]", "Argument[*0]", "taint", "manual"]
+      # StringCbPrintf: (pszDest, cbDest, pszFormat, ...)
+      - ["", "", False, "StringCbPrintfA", "", "", "Argument[*2..8]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbPrintfW", "", "", "Argument[*2..8]", "Argument[*0]", "taint", "manual"]
+      # StringCchPrintfEx: (pszDest, cchDest, ppszDestEnd, pcchRemaining, dwFlags, pszFormat, ...)
+      - ["", "", False, "StringCchPrintfExA", "", "", "Argument[*5..11]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchPrintfExW", "", "", "Argument[*5..11]", "Argument[*0]", "taint", "manual"]
+      # StringCbPrintfEx: (pszDest, cbDest, ppszDestEnd, pcbRemaining, dwFlags, pszFormat, ...)
+      - ["", "", False, "StringCbPrintfExA", "", "", "Argument[*5..11]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbPrintfExW", "", "", "Argument[*5..11]", "Argument[*0]", "taint", "manual"]
+      # StringCchVPrintf: (pszDest, cchDest, pszFormat, argList)
+      - ["", "", False, "StringCchVPrintfA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchVPrintfW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCbVPrintf: (pszDest, cbDest, pszFormat, argList)
+      - ["", "", False, "StringCbVPrintfA", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbVPrintfW", "", "", "Argument[*2]", "Argument[*0]", "taint", "manual"]
+      # StringCchVPrintfEx: (pszDest, cchDest, ppszDestEnd, pcchRemaining, dwFlags, pszFormat, argList)
+      - ["", "", False, "StringCchVPrintfExA", "", "", "Argument[*5]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCchVPrintfExW", "", "", "Argument[*5]", "Argument[*0]", "taint", "manual"]
+      # StringCbVPrintfEx: (pszDest, cbDest, ppszDestEnd, pcbRemaining, dwFlags, pszFormat, argList)
+      - ["", "", False, "StringCbVPrintfExA", "", "", "Argument[*5]", "Argument[*0]", "taint", "manual"]
+      - ["", "", False, "StringCbVPrintfExW", "", "", "Argument[*5]", "Argument[*0]", "taint", "manual"]

cpp/ql/lib/ext/allocation/Std.allocation.model.yml

@@ -12,4 +12,7 @@ extensions:
       - ["", "", False, "_malloca", "0", "", "", False]
       - ["", "", False, "calloc", "1", "0", "", True]
       - ["std", "", False, "calloc", "1", "0", "", True]
-      - ["bsl", "", False, "calloc", "1", "0", "", True]
+      - ["bsl", "", False, "calloc", "1", "0", "", True]
+      - ["", "", False, "aligned_alloc", "1", "", "", True]
+      - ["std", "", False, "aligned_alloc", "1", "", "", True]
+      - ["bsl", "", False, "aligned_alloc", "1", "", "", True]

cpp/ql/lib/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/cpp-all
-version: 9.0.0
+version: 10.1.0
 groups: cpp
 dbscheme: semmlecode.cpp.dbscheme
 extractor: cpp

cpp/ql/lib/semmle/code/cpp/ConfigurationTestFile.qll

@@ -42,3 +42,10 @@ class MesonPrivateTestFile extends ConfigurationTestFile {
     )
   }
 }
+
+/**
+ * A file created by a GNU autoconf configure script to test the system configuration.
+ */
+class AutoconfConfigureTestFile extends ConfigurationTestFile {
+  AutoconfConfigureTestFile() { this.getBaseName().regexpMatch("conftest[0-9]*\\.c(pp)?") }
+}

cpp/ql/lib/semmle/code/cpp/commons/Printf.qll

@@ -459,6 +459,13 @@ class FormatLiteral extends Literal instanceof StringLiteral {
    */
   int getConvSpecOffset(int n) { result = this.getFormat().indexOf("%", n, 0) }
 
+  /**
+   * Gets the nth conversion specifier string.
+   */
+  private string getConvSpecString(int n) {
+    n >= 0 and result = "%" + this.getFormat().splitAt("%", n + 1)
+  }
+
   /*
    * Each of these predicates gets a regular expressions to match each individual
    * parts of a conversion specifier.
@@ -524,22 +531,20 @@ class FormatLiteral extends Literal instanceof StringLiteral {
     int n, string spec, string params, string flags, string width, string prec, string len,
     string conv
   ) {
-    exists(int offset, string fmt, string rst, string regexp |
-      offset = this.getConvSpecOffset(n) and
-      fmt = this.getFormat() and
-      rst = fmt.substring(offset, fmt.length()) and
+    exists(string convSpec, string regexp |
+      convSpec = this.getConvSpecString(n) and
       regexp = this.getConvSpecRegexp() and
       (
-        spec = rst.regexpCapture(regexp, 1) and
-        params = rst.regexpCapture(regexp, 2) and
-        flags = rst.regexpCapture(regexp, 3) and
-        width = rst.regexpCapture(regexp, 4) and
-        prec = rst.regexpCapture(regexp, 5) and
-        len = rst.regexpCapture(regexp, 6) and
-        conv = rst.regexpCapture(regexp, 7)
+        spec = convSpec.regexpCapture(regexp, 1) and
+        params = convSpec.regexpCapture(regexp, 2) and
+        flags = convSpec.regexpCapture(regexp, 3) and
+        width = convSpec.regexpCapture(regexp, 4) and
+        prec = convSpec.regexpCapture(regexp, 5) and
+        len = convSpec.regexpCapture(regexp, 6) and
+        conv = convSpec.regexpCapture(regexp, 7)
         or
-        spec = rst.regexpCapture(regexp, 1) and
-        not exists(rst.regexpCapture(regexp, 2)) and
+        spec = convSpec.regexpCapture(regexp, 1) and
+        not exists(convSpec.regexpCapture(regexp, 2)) and
         params = "" and
         flags = "" and
         width = "" and
@@ -554,12 +559,10 @@ class FormatLiteral extends Literal instanceof StringLiteral {
    * Gets the nth conversion specifier (including the initial `%`).
    */
   string getConvSpec(int n) {
-    exists(int offset, string fmt, string rst, string regexp |
-      offset = this.getConvSpecOffset(n) and
-      fmt = this.getFormat() and
-      rst = fmt.substring(offset, fmt.length()) and
+    exists(string convSpec, string regexp |
+      convSpec = this.getConvSpecString(n) and
       regexp = this.getConvSpecRegexp() and
-      result = rst.regexpCapture(regexp, 1)
+      result = convSpec.regexpCapture(regexp, 1)
     )
   }
 

cpp/ql/lib/semmle/code/cpp/commons/Scanf.qll

@@ -194,6 +194,13 @@ class ScanfFormatLiteral extends Expr {
     )
   }
 
+  /**
+   * Gets the nth conversion specifier string.
+   */
+  private string getConvSpecString(int n) {
+    n >= 0 and result = "%" + this.getFormat().splitAt("%", n + 1)
+  }
+
   /**
    * Gets the regular expression to match each individual part of a conversion specifier.
    */
@@ -227,16 +234,14 @@ class ScanfFormatLiteral extends Expr {
    * specifier.
    */
   predicate parseConvSpec(int n, string spec, string width, string len, string conv) {
-    exists(int offset, string fmt, string rst, string regexp |
-      offset = this.getConvSpecOffset(n) and
-      fmt = this.getFormat() and
-      rst = fmt.substring(offset, fmt.length()) and
+    exists(string convSpec, string regexp |
+      convSpec = this.getConvSpecString(n) and
       regexp = this.getConvSpecRegexp() and
       (
-        spec = rst.regexpCapture(regexp, 1) and
-        width = rst.regexpCapture(regexp, 2) and
-        len = rst.regexpCapture(regexp, 3) and
-        conv = rst.regexpCapture(regexp, 4)
+        spec = convSpec.regexpCapture(regexp, 1) and
+        width = convSpec.regexpCapture(regexp, 2) and
+        len = convSpec.regexpCapture(regexp, 3) and
+        conv = convSpec.regexpCapture(regexp, 4)
       )
     )
   }

cpp/ql/lib/semmle/code/cpp/dataflow/ExternalFlow.qll

@@ -6,11 +6,15 @@
  *
  * The extensible relations have the following columns:
  * - Sources:
- *   `namespace; type; subtypes; name; signature; ext; output; kind`
+ *   `namespace; type; subtypes; name; signature; ext; output; kind; provenance`
  * - Sinks:
- *   `namespace; type; subtypes; name; signature; ext; input; kind`
+ *   `namespace; type; subtypes; name; signature; ext; input; kind; provenance`
  * - Summaries:
- *   `namespace; type; subtypes; name; signature; ext; input; output; kind`
+ *   `namespace; type; subtypes; name; signature; ext; input; output; kind; provenance`
+ * - Barriers:
+ *   `namespace; type; subtypes; name; signature; ext; output; kind; provenance`
+ * - BarrierGuards:
+ *   `namespace; type; subtypes; name; signature; ext; input; acceptingValue; kind; provenance`
  *
  * The interpretation of a row is similar to API-graphs with a left-to-right
  * reading.
@@ -87,11 +91,23 @@
  *    value, and
  *    - flow from the _second_ indirection of the 0th argument to the first
  *    indirection of the return value, etc.
- * 8. The `kind` column is a tag that can be referenced from QL to determine to
+ * 8. The `acceptingValue` column of barrier guard models specifies the condition
+ *    under which the guard blocks flow. It can be one of "true" or "false". In
+ *    the future "no-exception", "not-zero", "null", "not-null" may be supported.
+ * 9. The `kind` column is a tag that can be referenced from QL to determine to
  *    which classes the interpreted elements should be added. For example, for
  *    sources "remote" indicates a default remote flow source, and for summaries
  *    "taint" indicates a default additional taint step and "value" indicates a
  *    globally applicable value-preserving step.
+ * 10. The `provenance` column is a tag to indicate the origin and verification of a model.
+ *    The format is {origin}-{verification} or just "manual" where the origin describes
+ *    the origin of the model and verification describes how the model has been verified.
+ *    Some examples are:
+ *    - "df-generated": The model has been generated by the model generator tool.
+ *    - "df-manual": The model has been generated by the model generator and verified by a human.
+ *    - "manual": The model has been written by hand.
+ *    This information is used in a heuristic for dataflow analysis to determine, if a
+ *    model or source code should be used for determining flow.
  */
 
 import cpp
@@ -931,13 +947,13 @@ private module Cached {
 
   private predicate barrierGuardChecks(IRGuardCondition g, Expr e, boolean gv, TKindModelPair kmp) {
     exists(
-      SourceSinkInterpretationInput::InterpretNode n, Public::AcceptingValue acceptingvalue,
+      SourceSinkInterpretationInput::InterpretNode n, Public::AcceptingValue acceptingValue,
       string kind, string model
     |
-      isBarrierGuardNode(n, acceptingvalue, kind, model) and
+      isBarrierGuardNode(n, acceptingValue, kind, model) and
       n.asNode().asExpr() = e and
       kmp = TMkPair(kind, model) and
-      gv = convertAcceptingValue(acceptingvalue).asBooleanValue() and
+      gv = convertAcceptingValue(acceptingValue).asBooleanValue() and
       n.asNode().(Private::ArgumentNode).getCall().asCallInstruction() = g
     )
   }
@@ -954,14 +970,14 @@ private module Cached {
   ) {
     exists(
       SourceSinkInterpretationInput::InterpretNode interpretNode,
-      Public::AcceptingValue acceptingvalue, string kind, string model, int indirectionIndex,
+      Public::AcceptingValue acceptingValue, string kind, string model, int indirectionIndex,
       Private::ArgumentNode arg
     |
-      isBarrierGuardNode(interpretNode, acceptingvalue, kind, model) and
+      isBarrierGuardNode(interpretNode, acceptingValue, kind, model) and
       arg = interpretNode.asNode() and
       arg.asIndirectExpr(indirectionIndex) = e and
       kmp = MkKindModelPairIntPair(TMkPair(kind, model), indirectionIndex) and
-      gv = convertAcceptingValue(acceptingvalue).asBooleanValue() and
+      gv = convertAcceptingValue(acceptingValue).asBooleanValue() and
       arg.getCall().asCallInstruction() = g
     )
   }

cpp/ql/lib/semmle/code/cpp/dataflow/internal/ExternalFlowExtensions.qll

@@ -33,7 +33,7 @@ extensible predicate barrierModel(
  */
 extensible predicate barrierGuardModel(
   string namespace, string type, boolean subtypes, string name, string signature, string ext,
-  string input, string acceptingvalue, string kind, string provenance, QlBuiltins::ExtensionId madId
+  string input, string acceptingValue, string kind, string provenance, QlBuiltins::ExtensionId madId
 );
 
 /**

cpp/ql/lib/semmle/code/cpp/dataflow/internal/FlowSummaryImpl.qll

@@ -162,13 +162,13 @@ module SourceSinkInterpretationInput implements
   }
 
   predicate barrierGuardElement(
-    Element e, string input, Public::AcceptingValue acceptingvalue, string kind,
+    Element e, string input, Public::AcceptingValue acceptingValue, string kind,
     Public::Provenance provenance, string model
   ) {
     exists(
       string package, string type, boolean subtypes, string name, string signature, string ext
     |
-      barrierGuardModel(package, type, subtypes, name, signature, ext, input, acceptingvalue, kind,
+      barrierGuardModel(package, type, subtypes, name, signature, ext, input, acceptingValue, kind,
         provenance, model) and
       e = interpretElement(package, type, subtypes, name, signature, ext)
     )

cpp/ql/lib/semmle/code/cpp/internal/QualifiedName.qll

@@ -18,7 +18,7 @@ class Namespace extends @namespace {
     if namespacembrs(_, this)
     then
       exists(Namespace ns |
-        namespacembrs(ns, this) and
+        namespacembrs(ns, pragma[only_bind_out](this)) and
         result = ns.getQualifiedName() + "::" + this.getName()
       )
     else result = this.getName()
@@ -37,7 +37,7 @@ class Namespace extends @namespace {
   string getAQualifierForMembers() {
     if namespacembrs(_, this)
     then
-      exists(Namespace ns | namespacembrs(ns, this) |
+      exists(Namespace ns | namespacembrs(ns, pragma[only_bind_out](this)) |
         result = ns.getAQualifierForMembers() + "::" + this.getName()
         or
         // If this is an inline namespace, its members are also visible in any

cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedAssertion.qll

@@ -114,6 +114,7 @@ private predicate parseArgument(string arg, string s, int i, Opcode opcode) {
 
 private Element getAChildScope(Element scope) { result.getParentScope() = scope }
 
+pragma[nomagic]
 private predicate hasAVariable(MacroInvocation mi, Stmt s, Element scope) {
   assertion0(mi, s, _) and
   s.getParent() = scope
@@ -121,15 +122,32 @@ private predicate hasAVariable(MacroInvocation mi, Stmt s, Element scope) {
   hasAVariable(mi, s, getAChildScope(scope))
 }
 
-private LocalScopeVariable getVariable(MacroInvocation mi, int i) {
-  exists(string operand, string arg, Stmt s |
+private predicate hasParentScope(Variable v, Element scope) { v.getParentScope() = scope }
+
+pragma[nomagic]
+private predicate hasAssertionOperand(MacroInvocation mi, int i, Stmt s, string operand) {
+  exists(string arg |
     assertion0(mi, s, arg) and
-    parseArgument(arg, operand, i, _) and
+    parseArgument(arg, operand, i, _)
+  )
+}
+
+pragma[nomagic]
+private predicate hasNameAndParentScope(string name, Element scope, Variable v) {
+  v.hasName(name) and
+  hasParentScope(v, scope)
+}
+
+pragma[nomagic]
+private LocalScopeVariable getVariable(MacroInvocation mi, int i) {
+  exists(string name, Stmt s |
+    hasAssertionOperand(mi, i, s, name) and
     result =
-      unique(Variable v |
+      unique(Variable v, Element parentScope |
+        hasAssertionOperand(mi, _, s, name) and
         v.getLocation().getStartLine() < s.getLocation().getStartLine() and
-        hasAVariable(mi, s, v.getParentScope()) and
-        v.hasName(operand)
+        hasAVariable(mi, s, parentScope) and
+        hasNameAndParentScope(name, parentScope, v)
       |
         v
       )

cpp/ql/lib/semmle/code/cpp/models/interfaces/NonThrowing.qll

@@ -11,10 +11,3 @@ import semmle.code.cpp.models.Models
  * The function may still raise a structured exception handling (SEH) exception.
  */
 abstract class NonCppThrowingFunction extends Function { }
-
-/**
- * A function that is guaranteed to never throw.
- *
- * DEPRECATED: use `NonCppThrowingFunction` instead.
- */
-deprecated class NonThrowingFunction = NonCppThrowingFunction;

cpp/ql/lib/semmle/code/cpp/models/interfaces/Throwing.qll

@@ -10,19 +10,6 @@ import semmle.code.cpp.Function
 import semmle.code.cpp.models.Models
 import semmle.code.cpp.models.interfaces.FunctionInputsAndOutputs
 
-/**
- * A function that is known to raise an exception.
- *
- * DEPRECATED: use `AlwaysSehThrowingFunction` instead.
- */
-abstract deprecated class ThrowingFunction extends Function {
-  /**
-   * Holds if this function may throw an exception during evaluation.
-   * If `unconditional` is `true` the function always throws an exception.
-   */
-  abstract predicate mayThrowException(boolean unconditional);
-}
-
 /**
  * A function that unconditionally raises a structured exception handling (SEH) exception.
  */

cpp/ql/lib/semmle/code/cpp/stmts/Stmt.qll

@@ -1412,9 +1412,9 @@ private int indexOfSwitchCaseRank(BlockStmt b, int rnk) {
  * switch (i)
  * {
  * case 5:
- *   ...
+ *     ...
  * default:
- *   ...
+ *     ...
  * }
  * ```
  */
@@ -1516,8 +1516,10 @@ class SwitchCase extends Stmt, @stmt_switch_case {
    * which has result `default:`, which has no result.
    */
   SwitchCase getNextSwitchCase() {
-    result.getSwitchStmt() = this.getSwitchStmt() and
-    result.getChildNum() = this.getChildNum() + 1
+    exists(SwitchStmt s, int n |
+      this = s.getSwitchCase(n) and
+      result = s.getSwitchCase(n + 1)
+    )
   }
 
   /**
@@ -1707,9 +1709,9 @@ class SwitchCase extends Stmt, @stmt_switch_case {
  * switch (i)
  * {
  * case 5:
- *   ...
+ *     ...
  * default:
- *   ...
+ *     ...
  * }
  * ```
  */
@@ -1731,9 +1733,9 @@ class DefaultCase extends SwitchCase {
  * switch (i)
  * {
  * case 5:
- *   ...
+ *     ...
  * default:
- *   ...
+ *     ...
  * }
  * ```
  */
@@ -1768,10 +1770,10 @@ class SwitchStmt extends ConditionalStmt, @stmt_switch {
    * For example, for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
-   *     default:
+   * default:
    *     break;
    * }
    * ```
@@ -1790,20 +1792,20 @@ class SwitchStmt extends ConditionalStmt, @stmt_switch {
    * For example, for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
-   *     default:
+   * default:
    *     break;
    * }
    * ```
    * the result is
    * ```
    * {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
-   *     default:
+   * default:
    *     break;
    * }
    * ```
@@ -1816,10 +1818,10 @@ class SwitchStmt extends ConditionalStmt, @stmt_switch {
    * For example, for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
-   *     default:
+   * default:
    *     break;
    * }
    * ```
@@ -1827,6 +1829,23 @@ class SwitchStmt extends ConditionalStmt, @stmt_switch {
    */
   SwitchCase getASwitchCase() { switch_case(underlyingElement(this), _, unresolveElement(result)) }
 
+  /**
+   * Gets the `n`th 'switch case' statement of this 'switch' statement, where
+   * `n` is 0-based.
+   *
+   * For example, for
+   * ```
+   * switch(i) {
+   * case 5:
+   * case 6:
+   * default:
+   * }   * ```
+   * 0 yields `case 5:`, 1 yields `case 6:`, and 2 yields `default:`.
+   */
+  SwitchCase getSwitchCase(int n) {
+    switch_case(underlyingElement(this), n, unresolveElement(result))
+  }
+
   /**
    * Gets the 'default case' statement of this 'switch' statement,
    * if any.
@@ -1834,18 +1853,18 @@ class SwitchStmt extends ConditionalStmt, @stmt_switch {
    * For example, for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
-   *     default:
+   * default:
    *     break;
    * }
    * ```
    * the result is `default:`, but there is no result for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
    * }
    * ```
@@ -1858,18 +1877,18 @@ class SwitchStmt extends ConditionalStmt, @stmt_switch {
    * For example, this holds for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
-   *     default:
+   * default:
    *     break;
    * }
    * ```
    * but not for
    * ```
    * switch(i) {
-   *     case 1:
-   *     case 2:
+   * case 1:
+   * case 2:
    *     break;
    * }
    * ```

cpp/ql/src/CHANGELOG.md

@@ -1,3 +1,18 @@
+## 1.6.2
+
+No user-facing changes.
+
+## 1.6.1
+
+### Minor Analysis Improvements
+
+* Added `AllocationFunction` models for `aligned_alloc`, `std::aligned_alloc`, and `bsl::aligned_alloc`.
+* The "Comparison of narrow type with wide type in loop condition" (`cpp/comparison-with-wider-type`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Multiplication result converted to larger type" (`cpp/integer-multiplication-cast-to-long`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Suspicious add with sizeof" (`cpp/suspicious-add-sizeof`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Wrong type of arguments to formatting function" (`cpp/wrong-type-format-argument`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Implicit function declaration" (`cpp/implicit-function-declaration`) query has been upgraded to `high` precision. However, for `build-mode: none` databases, it no longer produces any results. The results in this mode were found to be very noisy and fundamentally imprecise.
+
 ## 1.6.0
 
 ### Query Metadata Changes

cpp/ql/src/Likely Bugs/Arithmetic/IntMultToLong.ql

@@ -5,7 +5,7 @@
  * @kind problem
  * @problem.severity warning
  * @security-severity 8.1
- * @precision medium
+ * @precision high
  * @id cpp/integer-multiplication-cast-to-long
  * @tags reliability
  *       security

cpp/ql/src/Likely Bugs/Format/WrongTypeFormatArguments.ql

@@ -5,7 +5,7 @@
  * @kind problem
  * @problem.severity error
  * @security-severity 7.5
- * @precision medium
+ * @precision high
  * @id cpp/wrong-type-format-argument
  * @tags reliability
  *       correctness

cpp/ql/src/Likely Bugs/Leap Year/UncheckedLeapYearAfterYearModification.ql

@@ -227,6 +227,30 @@ class IgnorableUnaryBitwiseOperation extends IgnorableOperation instanceof Unary
 class IgnorableAssignmentBitwiseOperation extends IgnorableOperation instanceof AssignBitwiseOperation
 { }
 
+class YearFieldAssignmentNode extends DataFlow::Node {
+  YearFieldAccess access;
+
+  YearFieldAssignmentNode() {
+    exists(Function f |
+      f = this.getEnclosingCallable().getUnderlyingCallable() and not f instanceof IgnorableFunction
+    |
+      this.asDefinition().(Assignment).getLValue() = access
+      or
+      this.asDefinition().(CrementOperation).getOperand() = access
+      or
+      exists(Call c | c.getAnArgument() = access and this.asDefiningArgument() = access)
+      or
+      exists(Call c, AddressOfExpr aoe |
+        c.getAnArgument() = aoe and
+        aoe.getOperand() = access and
+        this.asDefiningArgument() = aoe
+      )
+    )
+  }
+
+  YearFieldAccess getYearFieldAccess() { result = access }
+}
+
 /**
  * An arithmetic operation where one of the operands is a pointer or char type, ignore it
  */
@@ -287,24 +311,7 @@ predicate isOperationSourceCandidate(Expr e) {
 }
 
 /**
- * A data flow that tracks an ignorable operation (such as a bitwise operation) to an operation source, so we may disqualify it.
- */
-module IgnorableOperationToOperationSourceCandidateConfig implements DataFlow::ConfigSig {
-  predicate isSource(DataFlow::Node n) { n.asExpr() instanceof IgnorableOperation }
-
-  predicate isSink(DataFlow::Node n) { isOperationSourceCandidate(n.asExpr()) }
-
-  // looking for sources and sinks in the same function
-  DataFlow::FlowFeature getAFeature() {
-    result instanceof DataFlow::FeatureEqualSourceSinkCallContext
-  }
-}
-
-module IgnorableOperationToOperationSourceCandidateFlow =
-  TaintTracking::Global<IgnorableOperationToOperationSourceCandidateConfig>;
-
-/**
- * The set of all expressions which is a candidate expression and also does not flow from to to some ignorable expression (eg. bitwise op)
+ * The set of all expressions that are candidate expression.
  * ```
  * a = something <<< 2;
  * myDate.year = a + 1;        // invalid
@@ -314,49 +321,16 @@ module IgnorableOperationToOperationSourceCandidateFlow =
  * ```
  */
 class OperationSource extends Expr {
-  OperationSource() {
-    isOperationSourceCandidate(this) and
-    // If the candidate came from an ignorable operation, ignore the candidate
-    // NOTE: we cannot easily flow the candidate to an ignorable operation as that can
-    // be tricky in practice, e.g., a mod operation on a year would be part of a leap year check
-    // but a mod operation ending in a year is more indicative of something to ignore (a conversion)
-    not exists(IgnorableOperationToOperationSourceCandidateFlow::PathNode sink |
-      sink.getNode().asExpr() = this and
-      sink.isSink()
-    )
-  }
-}
-
-class YearFieldAssignmentNode extends DataFlow::Node {
-  YearFieldAccess access;
-
-  YearFieldAssignmentNode() {
-    exists(Function f |
-      f = this.getEnclosingCallable().getUnderlyingCallable() and not f instanceof IgnorableFunction
-    ) and
-    (
-      this.asDefinition().(Assignment).getLValue() = access
-      or
-      this.asDefinition().(CrementOperation).getOperand() = access
-      or
-      exists(Call c | c.getAnArgument() = access and this.asDefiningArgument() = access)
-      or
-      exists(Call c, AddressOfExpr aoe |
-        c.getAnArgument() = aoe and
-        aoe.getOperand() = access and
-        this.asDefiningArgument() = aoe
-      )
-    )
-  }
-
-  YearFieldAccess getYearFieldAccess() { result = access }
+  OperationSource() { isOperationSourceCandidate(this) }
 }
 
 /**
- * A DataFlow configuration for identifying flows from an identified source
- * to the Year field of a date object.
+ * An initial DataFlow configuration for identifying flows from an identified source
+ * to the Year field of a date object. This is used to restrict the sinks of
+ * `IgnorableOperationToOperationSourceCandidateConfig` and the sinks of the
+ * final `OperationToYearAssignmentConfig`.
  */
-module OperationToYearAssignmentConfig implements DataFlow::ConfigSig {
+module OperationToYearAssignmentConfig0 implements DataFlow::ConfigSig {
   predicate isSource(DataFlow::Node n) { n.asExpr() instanceof OperationSource }
 
   predicate isSink(DataFlow::Node n) {
@@ -411,6 +385,62 @@ module OperationToYearAssignmentConfig implements DataFlow::ConfigSig {
   predicate isBarrierOut(DataFlow::Node n) { isSink(n) }
 }
 
+module OperationToYearAssignmentFlow0 = TaintTracking::Global<OperationToYearAssignmentConfig0>;
+
+predicate yearAssignmentFlowsFromSource(DataFlow::Node source, DataFlow::Node sink) {
+  OperationToYearAssignmentFlow0::flow(source, sink)
+}
+
+/**
+ * A data flow that tracks an ignorable operation (such as a bitwise operation) to an operation source, so we may disqualify it.
+ * Sinks are restricted to operation source candidates that have a flow to a year assignment in `OperationToYearAssignmentFlow0`.
+ */
+module IgnorableOperationToOperationSourceCandidateConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node n) { n.asExpr() instanceof IgnorableOperation }
+
+  predicate isSink(DataFlow::Node n) {
+    isOperationSourceCandidate(n.asExpr()) and
+    yearAssignmentFlowsFromSource(n, _)
+  }
+
+  // looking for sources and sinks in the same function
+  DataFlow::FlowFeature getAFeature() {
+    result instanceof DataFlow::FeatureEqualSourceSinkCallContext
+  }
+}
+
+module IgnorableOperationToOperationSourceCandidateFlow =
+  TaintTracking::Global<IgnorableOperationToOperationSourceCandidateConfig>;
+
+/**
+ * The final DataFlow configuration that refines `OperationToYearAssignmentConfig0` by
+ * additionally filtering out operation sources that flow from an ignorable operation
+ * (via `IgnorableOperationToOperationSourceCandidateFlow`).
+ */
+module OperationToYearAssignmentConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node n) { yearAssignmentFlowsFromSource(n, _) }
+
+  predicate isSink(DataFlow::Node n) {
+    exists(DataFlow::Node operation |
+      yearAssignmentFlowsFromSource(operation, n) and
+      // If the candidate came from an ignorable operation, ignore the candidate
+      // NOTE: we cannot easily flow the candidate to an ignorable operation as that can
+      // be tricky in practice, e.g., a mod operation on a year would be part of a leap year check
+      // but a mod operation ending in a year is more indicative of something to ignore (a conversion)
+      not exists(IgnorableOperationToOperationSourceCandidateFlow::PathNode sink |
+        sink.getNode() = operation and
+        sink.isSink()
+      )
+    )
+  }
+
+  predicate isBarrier(DataFlow::Node n) { OperationToYearAssignmentConfig0::isBarrier(n) }
+
+  predicate isBarrierIn(DataFlow::Node n) { isSource(n) }
+
+  predicate isBarrierOut(DataFlow::Node n) { isSink(n) }
+}
+
 module OperationToYearAssignmentFlow = TaintTracking::Global<OperationToYearAssignmentConfig>;
 
 predicate isLeapYearCheckSink(DataFlow::Node sink) {

cpp/ql/src/Likely Bugs/Underspecified Functions/ImplicitFunctionDeclaration.qhelp

@@ -14,6 +14,9 @@ function may behave unpredictably.</p>
 <p>This may indicate a misspelled function name, or that the required header containing
 the function declaration has not been included.</p>
 
+<p>Note: This query is not compatible with <code>build-mode: none</code> databases, and produces
+no results on those databases.</p>
+
 </overview>
 <recommendation>
 <p>Provide an explicit declaration of the function before invoking it.</p>
@@ -26,4 +29,4 @@ the function declaration has not been included.</p>
 <references>
 <li>SEI CERT C Coding Standard: <a href="https://wiki.sei.cmu.edu/confluence/display/c/DCL31-C.+Declare+identifiers+before+using+them">DCL31-C. Declare identifiers before using them</a></li>
 </references>
-</qhelp>
+</qhelp>

cpp/ql/src/Likely Bugs/Underspecified Functions/ImplicitFunctionDeclaration.ql

@@ -5,7 +5,7 @@
  * may lead to unpredictable behavior.
  * @kind problem
  * @problem.severity warning
- * @precision medium
+ * @precision high
  * @id cpp/implicit-function-declaration
  * @tags correctness
  *       maintainability
@@ -17,6 +17,11 @@ import TooFewArguments
 import TooManyArguments
 import semmle.code.cpp.commons.Exclusions
 
+/*
+ * This query is not compatible with build-mode: none databases, and produces
+ * no results on those databases.
+ */
+
 predicate locInfo(Locatable e, File file, int line, int col) {
   e.getFile() = file and
   e.getLocation().getStartLine() = line and
@@ -39,6 +44,7 @@ predicate isCompiledAsC(File f) {
 from FunctionDeclarationEntry fdeIm, FunctionCall fc
 where
   isCompiledAsC(fdeIm.getFile()) and
+  not any(Compilation c).buildModeNone() and
   not isFromMacroDefinition(fc) and
   fdeIm.isImplicit() and
   sameLocation(fdeIm, fc) and

cpp/ql/src/Likely Bugs/Underspecified Functions/MistypedFunctionArguments.qll

@@ -79,9 +79,7 @@ private predicate hasZeroParamDecl(Function f) {
 
 // True if this file (or header) was compiled as a C file
 private predicate isCompiledAsC(File f) {
-  f.compiledAsC()
-  or
-  exists(File src | isCompiledAsC(src) | src.getAnIncludedFile() = f)
+  exists(File src | src.compiledAsC() | src.getAnIncludedFile*() = f)
 }
 
 predicate mistypedFunctionArguments(FunctionCall fc, Function f, Parameter p) {

cpp/ql/src/Likely Bugs/Underspecified Functions/TooFewArguments.qll

@@ -28,9 +28,7 @@ private predicate hasZeroParamDecl(Function f) {
 
 /* Holds if this file (or header) was compiled as a C file. */
 private predicate isCompiledAsC(File f) {
-  f.compiledAsC()
-  or
-  exists(File src | isCompiledAsC(src) | src.getAnIncludedFile() = f)
+  exists(File src | src.compiledAsC() | src.getAnIncludedFile*() = f)
 }
 
 /** Holds if `fc` is a call to `f` with too few arguments. */

cpp/ql/src/Likely Bugs/Underspecified Functions/TooManyArguments.qll

@@ -19,9 +19,7 @@ private predicate hasZeroParamDecl(Function f) {
 
 // True if this file (or header) was compiled as a C file
 private predicate isCompiledAsC(File f) {
-  f.compiledAsC()
-  or
-  exists(File src | isCompiledAsC(src) | src.getAnIncludedFile() = f)
+  exists(File src | src.compiledAsC() | src.getAnIncludedFile*() = f)
 }
 
 predicate tooManyArguments(FunctionCall fc, Function f) {

cpp/ql/src/Security/CWE/CWE-190/ComparisonWithWiderType.ql

@@ -6,7 +6,7 @@
  * @kind problem
  * @problem.severity warning
  * @security-severity 7.8
- * @precision medium
+ * @precision high
  * @tags reliability
  *       security
  *       external/cwe/cwe-190

cpp/ql/src/Security/CWE/CWE-468/SuspiciousAddWithSizeof.ql

@@ -6,7 +6,7 @@
  * @kind problem
  * @problem.severity warning
  * @security-severity 8.8
- * @precision medium
+ * @precision high
  * @id cpp/suspicious-add-sizeof
  * @tags security
  *       external/cwe/cwe-468

cpp/ql/src/change-notes/released/1.6.1.md

@@ -0,0 +1,10 @@
+## 1.6.1
+
+### Minor Analysis Improvements
+
+* Added `AllocationFunction` models for `aligned_alloc`, `std::aligned_alloc`, and `bsl::aligned_alloc`.
+* The "Comparison of narrow type with wide type in loop condition" (`cpp/comparison-with-wider-type`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Multiplication result converted to larger type" (`cpp/integer-multiplication-cast-to-long`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Suspicious add with sizeof" (`cpp/suspicious-add-sizeof`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Wrong type of arguments to formatting function" (`cpp/wrong-type-format-argument`) query has been upgraded to `high` precision. This query will now run in the default code scanning suite.
+* The "Implicit function declaration" (`cpp/implicit-function-declaration`) query has been upgraded to `high` precision. However, for `build-mode: none` databases, it no longer produces any results. The results in this mode were found to be very noisy and fundamentally imprecise.

cpp/ql/src/change-notes/released/1.6.2.md

@@ -0,0 +1,3 @@
+## 1.6.2
+
+No user-facing changes.

cpp/ql/src/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 1.6.0
+lastReleaseVersion: 1.6.2

cpp/ql/src/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/cpp-queries
-version: 1.6.0
+version: 1.6.2
 groups:
   - cpp
   - queries

cpp/ql/test/library-tests/builtins/complex/builtin.expected

@@ -1,4 +1,4 @@
 | complex.c:3:23:3:51 | __builtin_complex | file://:0:0:0:0 | _Complex double | complex.c:3:41:3:44 | real | file://:0:0:0:0 | double | complex.c:3:47:3:50 | imag | file://:0:0:0:0 | double |
-| complex.c:4:23:4:57 | __builtin_complex | file://:0:0:0:0 | _Complex double | complex.c:4:41:4:47 | 2.71828000000000003 | file://:0:0:0:0 | double | complex.c:4:50:4:56 | 3.141589999999999883 | file://:0:0:0:0 | double |
+| complex.c:4:23:4:57 | __builtin_complex | file://:0:0:0:0 | _Complex double | complex.c:4:41:4:47 | 2.71828 | file://:0:0:0:0 | double | complex.c:4:50:4:56 | 3.14159 | file://:0:0:0:0 | double |
 | complex.c:8:22:8:52 | __builtin_complex | file://:0:0:0:0 | _Complex float | complex.c:8:40:8:44 | realf | file://:0:0:0:0 | float | complex.c:8:47:8:51 | imagf | file://:0:0:0:0 | float |
-| complex.c:9:22:9:52 | __builtin_complex | file://:0:0:0:0 | _Complex float | complex.c:9:40:9:44 | 1.230000019 | file://:0:0:0:0 | float | complex.c:9:47:9:51 | 4.559999943 | file://:0:0:0:0 | float |
+| complex.c:9:22:9:52 | __builtin_complex | file://:0:0:0:0 | _Complex float | complex.c:9:40:9:44 | 1.23 | file://:0:0:0:0 | float | complex.c:9:47:9:51 | 4.56 | file://:0:0:0:0 | float |

cpp/ql/test/library-tests/controlflow/guards/GuardsCompare.expected

@@ -298,16 +298,16 @@
 | test.c:182:8:182:34 | ! ... | ! ... == 1 when ! ... is true |
 | test.c:182:8:182:34 | ! ... | ... && ... != 0 when ! ... is false |
 | test.c:182:8:182:34 | ! ... | ... && ... == 0 when ! ... is true |
-| test.c:182:10:182:20 | ... >= ... | 9.999999999999999547e-07 < foo+1 when ... >= ... is true |
-| test.c:182:10:182:20 | ... >= ... | 9.999999999999999547e-07 >= foo+1 when ... >= ... is false |
+| test.c:182:10:182:20 | ... >= ... | 1.0E-6 < foo+1 when ... >= ... is true |
+| test.c:182:10:182:20 | ... >= ... | 1.0E-6 >= foo+1 when ... >= ... is false |
 | test.c:182:10:182:20 | ... >= ... | ... >= ... != 0 when ... >= ... is true |
 | test.c:182:10:182:20 | ... >= ... | ... >= ... != 1 when ... >= ... is false |
 | test.c:182:10:182:20 | ... >= ... | ... >= ... == 0 when ... >= ... is false |
 | test.c:182:10:182:20 | ... >= ... | ... >= ... == 1 when ... >= ... is true |
-| test.c:182:10:182:20 | ... >= ... | foo < 9.999999999999999547e-07+0 when ... >= ... is false |
-| test.c:182:10:182:20 | ... >= ... | foo >= 9.999999999999999547e-07+0 when ... >= ... is true |
+| test.c:182:10:182:20 | ... >= ... | foo < 1.0E-6+0 when ... >= ... is false |
+| test.c:182:10:182:20 | ... >= ... | foo >= 1.0E-6+0 when ... >= ... is true |
 | test.c:182:10:182:33 | ... && ... | 1.0 >= foo+1 when ... && ... is true |
-| test.c:182:10:182:33 | ... && ... | 9.999999999999999547e-07 < foo+1 when ... && ... is true |
+| test.c:182:10:182:33 | ... && ... | 1.0E-6 < foo+1 when ... && ... is true |
 | test.c:182:10:182:33 | ... && ... | ! ... != 0 when ... && ... is false |
 | test.c:182:10:182:33 | ... && ... | ! ... != 1 when ... && ... is true |
 | test.c:182:10:182:33 | ... && ... | ! ... == 0 when ... && ... is true |
@@ -319,7 +319,7 @@
 | test.c:182:10:182:33 | ... && ... | ... >= ... != 0 when ... && ... is true |
 | test.c:182:10:182:33 | ... && ... | ... >= ... == 1 when ... && ... is true |
 | test.c:182:10:182:33 | ... && ... | foo < 1.0+0 when ... && ... is true |
-| test.c:182:10:182:33 | ... && ... | foo >= 9.999999999999999547e-07+0 when ... && ... is true |
+| test.c:182:10:182:33 | ... && ... | foo >= 1.0E-6+0 when ... && ... is true |
 | test.c:182:25:182:33 | ... < ... | 1.0 < foo+1 when ... < ... is false |
 | test.c:182:25:182:33 | ... < ... | 1.0 >= foo+1 when ... < ... is true |
 | test.c:182:25:182:33 | ... < ... | ... < ... != 0 when ... < ... is true |

cpp/ql/test/library-tests/controlflow/guards/GuardsEnsure.expected

@@ -169,12 +169,12 @@ binary
 | test.c:176:8:176:15 | ! ... | test.c:176:14:176:14 | b | < | test.c:176:10:176:10 | a | 1 | test.c:176:18:178:5 | { ... } |
 | test.c:176:10:176:14 | ... < ... | test.c:176:10:176:10 | a | >= | test.c:176:14:176:14 | b | 0 | test.c:176:18:178:5 | { ... } |
 | test.c:176:10:176:14 | ... < ... | test.c:176:14:176:14 | b | < | test.c:176:10:176:10 | a | 1 | test.c:176:18:178:5 | { ... } |
-| test.c:182:10:182:20 | ... >= ... | test.c:182:10:182:12 | foo | >= | test.c:182:17:182:20 | 9.999999999999999547e-07 | 0 | test.c:181:25:182:20 | { ... } |
-| test.c:182:10:182:20 | ... >= ... | test.c:182:10:182:12 | foo | >= | test.c:182:17:182:20 | 9.999999999999999547e-07 | 0 | test.c:182:25:182:33 | foo |
-| test.c:182:10:182:20 | ... >= ... | test.c:182:17:182:20 | 9.999999999999999547e-07 | < | test.c:182:10:182:12 | foo | 1 | test.c:181:25:182:20 | { ... } |
-| test.c:182:10:182:20 | ... >= ... | test.c:182:17:182:20 | 9.999999999999999547e-07 | < | test.c:182:10:182:12 | foo | 1 | test.c:182:25:182:33 | foo |
-| test.c:182:10:182:33 | ... && ... | test.c:182:10:182:12 | foo | >= | test.c:182:17:182:20 | 9.999999999999999547e-07 | 0 | test.c:181:25:182:20 | { ... } |
-| test.c:182:10:182:33 | ... && ... | test.c:182:17:182:20 | 9.999999999999999547e-07 | < | test.c:182:10:182:12 | foo | 1 | test.c:181:25:182:20 | { ... } |
+| test.c:182:10:182:20 | ... >= ... | test.c:182:10:182:12 | foo | >= | test.c:182:17:182:20 | 1.0E-6 | 0 | test.c:181:25:182:20 | { ... } |
+| test.c:182:10:182:20 | ... >= ... | test.c:182:10:182:12 | foo | >= | test.c:182:17:182:20 | 1.0E-6 | 0 | test.c:182:25:182:33 | foo |
+| test.c:182:10:182:20 | ... >= ... | test.c:182:17:182:20 | 1.0E-6 | < | test.c:182:10:182:12 | foo | 1 | test.c:181:25:182:20 | { ... } |
+| test.c:182:10:182:20 | ... >= ... | test.c:182:17:182:20 | 1.0E-6 | < | test.c:182:10:182:12 | foo | 1 | test.c:182:25:182:33 | foo |
+| test.c:182:10:182:33 | ... && ... | test.c:182:10:182:12 | foo | >= | test.c:182:17:182:20 | 1.0E-6 | 0 | test.c:181:25:182:20 | { ... } |
+| test.c:182:10:182:33 | ... && ... | test.c:182:17:182:20 | 1.0E-6 | < | test.c:182:10:182:12 | foo | 1 | test.c:181:25:182:20 | { ... } |
 | test.c:182:10:182:33 | ... && ... | test.c:182:25:182:27 | foo | < | test.c:182:31:182:33 | 1.0 | 0 | test.c:181:25:182:20 | { ... } |
 | test.c:182:10:182:33 | ... && ... | test.c:182:31:182:33 | 1.0 | >= | test.c:182:25:182:27 | foo | 1 | test.c:181:25:182:20 | { ... } |
 | test.c:182:25:182:33 | ... < ... | test.c:182:25:182:27 | foo | < | test.c:182:31:182:33 | 1.0 | 0 | test.c:181:25:182:20 | { ... } |

cpp/ql/test/library-tests/dataflow/source-sink-tests/sources-and-sinks.cpp

@@ -115,3 +115,19 @@ void test_zmc(void *socket) {
     // ...
   }
 }
+
+long StringCchGetsA(char *, size_t);
+long StringCchGetsExA(char *, size_t, char **, size_t *, unsigned long);
+
+void test_strsafe_gets() {
+	{
+		char dest[256] = {0};
+		StringCchGetsA(dest, sizeof(dest)); // $ local_source
+	}
+	{
+		char dest[256] = {0};
+		char *end;
+		size_t remaining;
+		StringCchGetsExA(dest, sizeof(dest), &end, &remaining, 0); // $ local_source
+	}
+}

cpp/ql/test/library-tests/dataflow/taint-tests/localTaint.expected

@@ -8008,6 +8008,174 @@ WARNING: module 'TaintTracking' has been deprecated and may be removed in future
 | taint.cpp:866:26:866:34 | ref arg & ... | taint.cpp:866:27:866:34 | size_out [inner post update] |  |
 | taint.cpp:866:27:866:34 | size_out | taint.cpp:866:26:866:34 | & ... |  |
 | taint.cpp:867:8:867:8 | p | taint.cpp:867:7:867:8 | * ... | TAINT |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:897:38:897:43 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:907:37:907:42 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:914:40:914:45 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:919:39:919:44 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:926:41:926:46 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:931:37:931:42 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:941:36:941:41 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:948:39:948:44 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:953:38:953:43 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:960:40:960:45 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:965:46:965:51 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:975:45:975:50 | source |  |
+| taint.cpp:892:17:892:31 | call to indirect_source | taint.cpp:982:69:982:74 | source |  |
+| taint.cpp:893:32:893:46 | call to indirect_source | taint.cpp:902:38:902:44 | wsource |  |
+| taint.cpp:893:32:893:46 | call to indirect_source | taint.cpp:936:37:936:43 | wsource |  |
+| taint.cpp:893:32:893:46 | call to indirect_source | taint.cpp:970:47:970:53 | wsource |  |
+| taint.cpp:896:19:896:22 | {...} | taint.cpp:897:18:897:21 | dest |  |
+| taint.cpp:896:19:896:22 | {...} | taint.cpp:897:31:897:34 | dest |  |
+| taint.cpp:896:19:896:22 | {...} | taint.cpp:898:9:898:12 | dest |  |
+| taint.cpp:896:21:896:21 | 0 | taint.cpp:896:19:896:22 | {...} | TAINT |
+| taint.cpp:897:18:897:21 | ref arg dest | taint.cpp:898:9:898:12 | dest |  |
+| taint.cpp:898:9:898:12 | dest | taint.cpp:898:8:898:12 | * ... |  |
+| taint.cpp:901:22:901:25 | {...} | taint.cpp:902:18:902:21 | dest |  |
+| taint.cpp:901:22:901:25 | {...} | taint.cpp:902:31:902:34 | dest |  |
+| taint.cpp:901:22:901:25 | {...} | taint.cpp:903:9:903:12 | dest |  |
+| taint.cpp:901:24:901:24 | 0 | taint.cpp:901:22:901:25 | {...} | TAINT |
+| taint.cpp:902:18:902:21 | ref arg dest | taint.cpp:903:9:903:12 | dest |  |
+| taint.cpp:903:9:903:12 | dest | taint.cpp:903:8:903:12 | * ... |  |
+| taint.cpp:906:19:906:22 | {...} | taint.cpp:907:17:907:20 | dest |  |
+| taint.cpp:906:19:906:22 | {...} | taint.cpp:907:30:907:33 | dest |  |
+| taint.cpp:906:19:906:22 | {...} | taint.cpp:908:9:908:12 | dest |  |
+| taint.cpp:906:21:906:21 | 0 | taint.cpp:906:19:906:22 | {...} | TAINT |
+| taint.cpp:907:17:907:20 | ref arg dest | taint.cpp:908:9:908:12 | dest |  |
+| taint.cpp:908:9:908:12 | dest | taint.cpp:908:8:908:12 | * ... |  |
+| taint.cpp:911:19:911:22 | {...} | taint.cpp:914:20:914:23 | dest |  |
+| taint.cpp:911:19:911:22 | {...} | taint.cpp:914:33:914:36 | dest |  |
+| taint.cpp:911:19:911:22 | {...} | taint.cpp:915:9:915:12 | dest |  |
+| taint.cpp:911:21:911:21 | 0 | taint.cpp:911:19:911:22 | {...} | TAINT |
+| taint.cpp:912:9:912:11 | end | taint.cpp:914:49:914:51 | end |  |
+| taint.cpp:913:10:913:18 | remaining | taint.cpp:914:55:914:63 | remaining |  |
+| taint.cpp:914:20:914:23 | ref arg dest | taint.cpp:915:9:915:12 | dest |  |
+| taint.cpp:914:48:914:51 | ref arg & ... | taint.cpp:914:49:914:51 | end [inner post update] |  |
+| taint.cpp:914:49:914:51 | end | taint.cpp:914:48:914:51 | & ... |  |
+| taint.cpp:914:54:914:63 | ref arg & ... | taint.cpp:914:55:914:63 | remaining [inner post update] |  |
+| taint.cpp:914:55:914:63 | remaining | taint.cpp:914:54:914:63 | & ... |  |
+| taint.cpp:915:9:915:12 | dest | taint.cpp:915:8:915:12 | * ... |  |
+| taint.cpp:918:19:918:22 | {...} | taint.cpp:919:19:919:22 | dest |  |
+| taint.cpp:918:19:918:22 | {...} | taint.cpp:919:32:919:35 | dest |  |
+| taint.cpp:918:19:918:22 | {...} | taint.cpp:920:9:920:12 | dest |  |
+| taint.cpp:918:21:918:21 | 0 | taint.cpp:918:19:918:22 | {...} | TAINT |
+| taint.cpp:919:19:919:22 | ref arg dest | taint.cpp:920:9:920:12 | dest |  |
+| taint.cpp:920:9:920:12 | dest | taint.cpp:920:8:920:12 | * ... |  |
+| taint.cpp:923:19:923:22 | {...} | taint.cpp:926:21:926:24 | dest |  |
+| taint.cpp:923:19:923:22 | {...} | taint.cpp:926:34:926:37 | dest |  |
+| taint.cpp:923:19:923:22 | {...} | taint.cpp:927:8:927:11 | dest |  |
+| taint.cpp:923:21:923:21 | 0 | taint.cpp:923:19:923:22 | {...} | TAINT |
+| taint.cpp:924:9:924:11 | end | taint.cpp:926:55:926:57 | end |  |
+| taint.cpp:925:10:925:18 | remaining | taint.cpp:926:61:926:69 | remaining |  |
+| taint.cpp:926:21:926:24 | ref arg dest | taint.cpp:927:8:927:11 | dest |  |
+| taint.cpp:926:54:926:57 | ref arg & ... | taint.cpp:926:55:926:57 | end [inner post update] |  |
+| taint.cpp:926:55:926:57 | end | taint.cpp:926:54:926:57 | & ... |  |
+| taint.cpp:926:60:926:69 | ref arg & ... | taint.cpp:926:61:926:69 | remaining [inner post update] |  |
+| taint.cpp:926:61:926:69 | remaining | taint.cpp:926:60:926:69 | & ... |  |
+| taint.cpp:930:20:930:27 | prefix | taint.cpp:931:17:931:20 | dest |  |
+| taint.cpp:930:20:930:27 | prefix | taint.cpp:931:30:931:33 | dest |  |
+| taint.cpp:930:20:930:27 | prefix | taint.cpp:932:9:932:12 | dest |  |
+| taint.cpp:931:17:931:20 | ref arg dest | taint.cpp:932:9:932:12 | dest |  |
+| taint.cpp:932:9:932:12 | dest | taint.cpp:932:8:932:12 | * ... |  |
+| taint.cpp:935:23:935:31 | prefix | taint.cpp:936:17:936:20 | dest |  |
+| taint.cpp:935:23:935:31 | prefix | taint.cpp:936:30:936:33 | dest |  |
+| taint.cpp:935:23:935:31 | prefix | taint.cpp:937:9:937:12 | dest |  |
+| taint.cpp:936:17:936:20 | ref arg dest | taint.cpp:937:9:937:12 | dest |  |
+| taint.cpp:937:9:937:12 | dest | taint.cpp:937:8:937:12 | * ... |  |
+| taint.cpp:940:20:940:27 | prefix | taint.cpp:941:16:941:19 | dest |  |
+| taint.cpp:940:20:940:27 | prefix | taint.cpp:941:29:941:32 | dest |  |
+| taint.cpp:940:20:940:27 | prefix | taint.cpp:942:9:942:12 | dest |  |
+| taint.cpp:941:16:941:19 | ref arg dest | taint.cpp:942:9:942:12 | dest |  |
+| taint.cpp:942:9:942:12 | dest | taint.cpp:942:8:942:12 | * ... |  |
+| taint.cpp:945:20:945:27 | prefix | taint.cpp:948:19:948:22 | dest |  |
+| taint.cpp:945:20:945:27 | prefix | taint.cpp:948:32:948:35 | dest |  |
+| taint.cpp:945:20:945:27 | prefix | taint.cpp:949:9:949:12 | dest |  |
+| taint.cpp:946:9:946:11 | end | taint.cpp:948:48:948:50 | end |  |
+| taint.cpp:947:10:947:18 | remaining | taint.cpp:948:54:948:62 | remaining |  |
+| taint.cpp:948:19:948:22 | ref arg dest | taint.cpp:949:9:949:12 | dest |  |
+| taint.cpp:948:47:948:50 | ref arg & ... | taint.cpp:948:48:948:50 | end [inner post update] |  |
+| taint.cpp:948:48:948:50 | end | taint.cpp:948:47:948:50 | & ... |  |
+| taint.cpp:948:53:948:62 | ref arg & ... | taint.cpp:948:54:948:62 | remaining [inner post update] |  |
+| taint.cpp:948:54:948:62 | remaining | taint.cpp:948:53:948:62 | & ... |  |
+| taint.cpp:949:9:949:12 | dest | taint.cpp:949:8:949:12 | * ... |  |
+| taint.cpp:952:20:952:27 | prefix | taint.cpp:953:18:953:21 | dest |  |
+| taint.cpp:952:20:952:27 | prefix | taint.cpp:953:31:953:34 | dest |  |
+| taint.cpp:952:20:952:27 | prefix | taint.cpp:954:9:954:12 | dest |  |
+| taint.cpp:953:18:953:21 | ref arg dest | taint.cpp:954:9:954:12 | dest |  |
+| taint.cpp:954:9:954:12 | dest | taint.cpp:954:8:954:12 | * ... |  |
+| taint.cpp:957:20:957:27 | prefix | taint.cpp:960:20:960:23 | dest |  |
+| taint.cpp:957:20:957:27 | prefix | taint.cpp:960:33:960:36 | dest |  |
+| taint.cpp:957:20:957:27 | prefix | taint.cpp:961:9:961:12 | dest |  |
+| taint.cpp:958:9:958:11 | end | taint.cpp:960:54:960:56 | end |  |
+| taint.cpp:959:10:959:18 | remaining | taint.cpp:960:60:960:68 | remaining |  |
+| taint.cpp:960:20:960:23 | ref arg dest | taint.cpp:961:9:961:12 | dest |  |
+| taint.cpp:960:53:960:56 | ref arg & ... | taint.cpp:960:54:960:56 | end [inner post update] |  |
+| taint.cpp:960:54:960:56 | end | taint.cpp:960:53:960:56 | & ... |  |
+| taint.cpp:960:59:960:68 | ref arg & ... | taint.cpp:960:60:960:68 | remaining [inner post update] |  |
+| taint.cpp:960:60:960:68 | remaining | taint.cpp:960:59:960:68 | & ... |  |
+| taint.cpp:961:9:961:12 | dest | taint.cpp:961:8:961:12 | * ... |  |
+| taint.cpp:964:19:964:22 | {...} | taint.cpp:965:20:965:23 | dest |  |
+| taint.cpp:964:19:964:22 | {...} | taint.cpp:965:33:965:36 | dest |  |
+| taint.cpp:964:19:964:22 | {...} | taint.cpp:966:9:966:12 | dest |  |
+| taint.cpp:964:21:964:21 | 0 | taint.cpp:964:19:964:22 | {...} | TAINT |
+| taint.cpp:965:20:965:23 | ref arg dest | taint.cpp:966:9:966:12 | dest |  |
+| taint.cpp:965:40:965:43 | %s | taint.cpp:965:20:965:23 | ref arg dest | TAINT |
+| taint.cpp:965:46:965:51 | ref arg source | taint.cpp:975:45:975:50 | source |  |
+| taint.cpp:965:46:965:51 | ref arg source | taint.cpp:982:69:982:74 | source |  |
+| taint.cpp:965:46:965:51 | source | taint.cpp:965:20:965:23 | ref arg dest | TAINT |
+| taint.cpp:966:9:966:12 | dest | taint.cpp:966:8:966:12 | * ... |  |
+| taint.cpp:969:22:969:25 | {...} | taint.cpp:970:20:970:23 | dest |  |
+| taint.cpp:969:22:969:25 | {...} | taint.cpp:970:33:970:36 | dest |  |
+| taint.cpp:969:22:969:25 | {...} | taint.cpp:971:9:971:12 | dest |  |
+| taint.cpp:969:24:969:24 | 0 | taint.cpp:969:22:969:25 | {...} | TAINT |
+| taint.cpp:970:20:970:23 | ref arg dest | taint.cpp:971:9:971:12 | dest |  |
+| taint.cpp:970:40:970:44 | %s | taint.cpp:970:20:970:23 | ref arg dest | TAINT |
+| taint.cpp:970:47:970:53 | wsource | taint.cpp:970:20:970:23 | ref arg dest | TAINT |
+| taint.cpp:971:9:971:12 | dest | taint.cpp:971:8:971:12 | * ... |  |
+| taint.cpp:974:19:974:22 | {...} | taint.cpp:975:19:975:22 | dest |  |
+| taint.cpp:974:19:974:22 | {...} | taint.cpp:975:32:975:35 | dest |  |
+| taint.cpp:974:19:974:22 | {...} | taint.cpp:976:9:976:12 | dest |  |
+| taint.cpp:974:21:974:21 | 0 | taint.cpp:974:19:974:22 | {...} | TAINT |
+| taint.cpp:975:19:975:22 | ref arg dest | taint.cpp:976:9:976:12 | dest |  |
+| taint.cpp:975:39:975:42 | %s | taint.cpp:975:19:975:22 | ref arg dest | TAINT |
+| taint.cpp:975:45:975:50 | ref arg source | taint.cpp:982:69:982:74 | source |  |
+| taint.cpp:975:45:975:50 | source | taint.cpp:975:19:975:22 | ref arg dest | TAINT |
+| taint.cpp:976:9:976:12 | dest | taint.cpp:976:8:976:12 | * ... |  |
+| taint.cpp:979:19:979:22 | {...} | taint.cpp:982:22:982:25 | dest |  |
+| taint.cpp:979:19:979:22 | {...} | taint.cpp:982:35:982:38 | dest |  |
+| taint.cpp:979:19:979:22 | {...} | taint.cpp:983:9:983:12 | dest |  |
+| taint.cpp:979:21:979:21 | 0 | taint.cpp:979:19:979:22 | {...} | TAINT |
+| taint.cpp:980:9:980:11 | end | taint.cpp:982:43:982:45 | end |  |
+| taint.cpp:981:10:981:18 | remaining | taint.cpp:982:49:982:57 | remaining |  |
+| taint.cpp:982:22:982:25 | ref arg dest | taint.cpp:983:9:983:12 | dest |  |
+| taint.cpp:982:42:982:45 | ref arg & ... | taint.cpp:982:43:982:45 | end [inner post update] |  |
+| taint.cpp:982:43:982:45 | end | taint.cpp:982:42:982:45 | & ... |  |
+| taint.cpp:982:48:982:57 | ref arg & ... | taint.cpp:982:49:982:57 | remaining [inner post update] |  |
+| taint.cpp:982:49:982:57 | remaining | taint.cpp:982:48:982:57 | & ... |  |
+| taint.cpp:982:63:982:66 | %s | taint.cpp:982:22:982:25 | ref arg dest | TAINT |
+| taint.cpp:982:69:982:74 | source | taint.cpp:982:22:982:25 | ref arg dest | TAINT |
+| taint.cpp:983:9:983:12 | dest | taint.cpp:983:8:983:12 | * ... |  |
+| taint.cpp:986:19:986:22 | {...} | taint.cpp:988:20:988:23 | dest |  |
+| taint.cpp:986:19:986:22 | {...} | taint.cpp:988:33:988:36 | dest |  |
+| taint.cpp:986:19:986:22 | {...} | taint.cpp:989:9:989:12 | dest |  |
+| taint.cpp:986:21:986:21 | 0 | taint.cpp:986:19:986:22 | {...} | TAINT |
+| taint.cpp:987:15:987:29 | call to indirect_source | taint.cpp:988:40:988:42 | fmt |  |
+| taint.cpp:988:20:988:23 | ref arg dest | taint.cpp:989:9:989:12 | dest |  |
+| taint.cpp:988:40:988:42 | fmt | taint.cpp:988:20:988:23 | ref arg dest | TAINT |
+| taint.cpp:989:9:989:12 | dest | taint.cpp:989:8:989:12 | * ... |  |
+| taint.cpp:992:19:992:22 | {...} | taint.cpp:993:20:993:23 | dest |  |
+| taint.cpp:992:19:992:22 | {...} | taint.cpp:993:33:993:36 | dest |  |
+| taint.cpp:992:19:992:22 | {...} | taint.cpp:994:9:994:12 | dest |  |
+| taint.cpp:992:21:992:21 | 0 | taint.cpp:992:19:992:22 | {...} | TAINT |
+| taint.cpp:993:20:993:23 | ref arg dest | taint.cpp:994:9:994:12 | dest |  |
+| taint.cpp:993:40:993:43 | %d | taint.cpp:993:20:993:23 | ref arg dest | TAINT |
+| taint.cpp:993:46:993:47 | 42 | taint.cpp:993:20:993:23 | ref arg dest | TAINT |
+| taint.cpp:994:9:994:12 | dest | taint.cpp:994:8:994:12 | * ... |  |
+| taint.cpp:997:19:997:22 | {...} | taint.cpp:998:18:998:21 | dest |  |
+| taint.cpp:997:19:997:22 | {...} | taint.cpp:998:31:998:34 | dest |  |
+| taint.cpp:997:19:997:22 | {...} | taint.cpp:999:9:999:12 | dest |  |
+| taint.cpp:997:21:997:21 | 0 | taint.cpp:997:19:997:22 | {...} | TAINT |
+| taint.cpp:998:18:998:21 | ref arg dest | taint.cpp:999:9:999:12 | dest |  |
+| taint.cpp:999:9:999:12 | dest | taint.cpp:999:8:999:12 | * ... |  |
 | thread.cpp:10:27:10:27 | s | thread.cpp:10:27:10:27 | s |  |
 | thread.cpp:10:27:10:27 | s | thread.cpp:11:8:11:8 | s |  |
 | thread.cpp:14:26:14:26 | s | thread.cpp:15:8:15:8 | s |  |

cpp/ql/test/library-tests/dataflow/taint-tests/taint.cpp

@@ -866,3 +866,136 @@ void test_iconv(size_t size) {
 	iconv(0, &s, &size, &p, &size_out);
 	sink(*p); // $ ast,ir
 }
+
+using va_list = void*;
+
+long StringCchCopyA(char *, size_t, const char *);
+long StringCchCopyW(wchar_t *, size_t, const wchar_t *);
+long StringCbCopyA(char *, size_t, const char *);
+long StringCchCopyExA(char *, size_t, const char *, char **, size_t *, unsigned long);
+long StringCchCopyNA(char *, size_t, const char *, size_t);
+long StringCchCopyNExA(char *, size_t, const char *, size_t, char **, size_t *, unsigned long);
+long StringCchCatA(char *, size_t, const char *);
+long StringCchCatW(wchar_t *, size_t, const wchar_t *);
+long StringCbCatA(char *, size_t, const char *);
+long StringCchCatExA(char *, size_t, const char *, char **, size_t *, unsigned long);
+long StringCchCatNA(char *, size_t, const char *, size_t);
+long StringCchCatNExA(char *, size_t, const char *, size_t, char **, size_t *, unsigned long);
+long StringCchPrintfA(char *, size_t, const char *, ...);
+long StringCchPrintfW(wchar_t *, size_t, const wchar_t *, ...);
+long StringCbPrintfA(char *, size_t, const char *, ...);
+long StringCchPrintfExA(char *, size_t, char **, size_t *, unsigned long, const char *, ...);
+long StringCchVPrintfA(char *, size_t, const char *, va_list);
+long StringCchVPrintfExA(char *, size_t, char **, size_t *, unsigned long, const char *, va_list);
+
+void test_strsafe() {
+	char *source = indirect_source();
+	wchar_t *wsource = (wchar_t *)indirect_source();
+
+	{
+		char dest[256] = {0};
+		StringCchCopyA(dest, sizeof(dest), source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		wchar_t dest[256] = {0};
+		StringCchCopyW(dest, sizeof(dest), wsource);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		StringCbCopyA(dest, sizeof(dest), source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		char *end;
+		size_t remaining;
+		StringCchCopyExA(dest, sizeof(dest), source, &end, &remaining, 0);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		StringCchCopyNA(dest, sizeof(dest), source, 128);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		char *end;
+		size_t remaining;
+		StringCchCopyNExA(dest, sizeof(dest), source, 128, &end, &remaining, 0);
+		sink(dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = "prefix";
+		StringCchCatA(dest, sizeof(dest), source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		wchar_t dest[256] = L"prefix";
+		StringCchCatW(dest, sizeof(dest), wsource);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = "prefix";
+		StringCbCatA(dest, sizeof(dest), source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = "prefix";
+		char *end;
+		size_t remaining;
+		StringCchCatExA(dest, sizeof(dest), source, &end, &remaining, 0);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = "prefix";
+		StringCchCatNA(dest, sizeof(dest), source, 128);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = "prefix";
+		char *end;
+		size_t remaining;
+		StringCchCatNExA(dest, sizeof(dest), source, 128, &end, &remaining, 0);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		StringCchPrintfA(dest, sizeof(dest), "%s", source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		wchar_t dest[256] = {0};
+		StringCchPrintfW(dest, sizeof(dest), L"%s", wsource);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		StringCbPrintfA(dest, sizeof(dest), "%s", source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		char *end;
+		size_t remaining;
+		StringCchPrintfExA(dest, sizeof(dest), &end, &remaining, 0, "%s", source);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		char *fmt = indirect_source();
+		StringCchPrintfA(dest, sizeof(dest), fmt);
+		sink(*dest); // $ ir MISSING: ast
+	}
+	{
+		char dest[256] = {0};
+		StringCchPrintfA(dest, sizeof(dest), "%d", 42);
+		sink(*dest); // clean
+	}
+	{
+		char dest[256] = {0};
+		StringCchCopyA(dest, sizeof(dest), "hello");
+		sink(*dest); // clean
+	}
+}

cpp/ql/test/library-tests/dataflow/taint-tests/test_mad-signatures.expected

@@ -28044,6 +28044,118 @@ getParameterTypeName
 | taint.cpp:859:8:859:12 | iconv | 4 | unsigned long * |
 | taint.cpp:861:6:861:15 | test_iconv | 0 | size_t |
 | taint.cpp:861:6:861:15 | test_iconv | 0 | unsigned long |
+| taint.cpp:872:6:872:19 | StringCchCopyA | 0 | char * |
+| taint.cpp:872:6:872:19 | StringCchCopyA | 1 | size_t |
+| taint.cpp:872:6:872:19 | StringCchCopyA | 1 | unsigned long |
+| taint.cpp:872:6:872:19 | StringCchCopyA | 2 | const char * |
+| taint.cpp:873:6:873:19 | StringCchCopyW | 0 | wchar_t * |
+| taint.cpp:873:6:873:19 | StringCchCopyW | 1 | size_t |
+| taint.cpp:873:6:873:19 | StringCchCopyW | 1 | unsigned long |
+| taint.cpp:873:6:873:19 | StringCchCopyW | 2 | const wchar_t * |
+| taint.cpp:874:6:874:18 | StringCbCopyA | 0 | char * |
+| taint.cpp:874:6:874:18 | StringCbCopyA | 1 | size_t |
+| taint.cpp:874:6:874:18 | StringCbCopyA | 1 | unsigned long |
+| taint.cpp:874:6:874:18 | StringCbCopyA | 2 | const char * |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 0 | char * |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 1 | size_t |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 1 | unsigned long |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 2 | const char * |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 3 | char ** |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 4 | size_t * |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 4 | unsigned long * |
+| taint.cpp:875:6:875:21 | StringCchCopyExA | 5 | unsigned long |
+| taint.cpp:876:6:876:20 | StringCchCopyNA | 0 | char * |
+| taint.cpp:876:6:876:20 | StringCchCopyNA | 1 | size_t |
+| taint.cpp:876:6:876:20 | StringCchCopyNA | 1 | unsigned long |
+| taint.cpp:876:6:876:20 | StringCchCopyNA | 2 | const char * |
+| taint.cpp:876:6:876:20 | StringCchCopyNA | 3 | size_t |
+| taint.cpp:876:6:876:20 | StringCchCopyNA | 3 | unsigned long |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 0 | char * |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 1 | size_t |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 1 | unsigned long |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 2 | const char * |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 3 | size_t |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 3 | unsigned long |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 4 | char ** |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 5 | size_t * |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 5 | unsigned long * |
+| taint.cpp:877:6:877:22 | StringCchCopyNExA | 6 | unsigned long |
+| taint.cpp:878:6:878:18 | StringCchCatA | 0 | char * |
+| taint.cpp:878:6:878:18 | StringCchCatA | 1 | size_t |
+| taint.cpp:878:6:878:18 | StringCchCatA | 1 | unsigned long |
+| taint.cpp:878:6:878:18 | StringCchCatA | 2 | const char * |
+| taint.cpp:879:6:879:18 | StringCchCatW | 0 | wchar_t * |
+| taint.cpp:879:6:879:18 | StringCchCatW | 1 | size_t |
+| taint.cpp:879:6:879:18 | StringCchCatW | 1 | unsigned long |
+| taint.cpp:879:6:879:18 | StringCchCatW | 2 | const wchar_t * |
+| taint.cpp:880:6:880:17 | StringCbCatA | 0 | char * |
+| taint.cpp:880:6:880:17 | StringCbCatA | 1 | size_t |
+| taint.cpp:880:6:880:17 | StringCbCatA | 1 | unsigned long |
+| taint.cpp:880:6:880:17 | StringCbCatA | 2 | const char * |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 0 | char * |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 1 | size_t |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 1 | unsigned long |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 2 | const char * |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 3 | char ** |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 4 | size_t * |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 4 | unsigned long * |
+| taint.cpp:881:6:881:20 | StringCchCatExA | 5 | unsigned long |
+| taint.cpp:882:6:882:19 | StringCchCatNA | 0 | char * |
+| taint.cpp:882:6:882:19 | StringCchCatNA | 1 | size_t |
+| taint.cpp:882:6:882:19 | StringCchCatNA | 1 | unsigned long |
+| taint.cpp:882:6:882:19 | StringCchCatNA | 2 | const char * |
+| taint.cpp:882:6:882:19 | StringCchCatNA | 3 | size_t |
+| taint.cpp:882:6:882:19 | StringCchCatNA | 3 | unsigned long |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 0 | char * |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 1 | size_t |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 1 | unsigned long |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 2 | const char * |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 3 | size_t |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 3 | unsigned long |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 4 | char ** |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 5 | size_t * |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 5 | unsigned long * |
+| taint.cpp:883:6:883:21 | StringCchCatNExA | 6 | unsigned long |
+| taint.cpp:884:6:884:21 | StringCchPrintfA | 0 | char * |
+| taint.cpp:884:6:884:21 | StringCchPrintfA | 1 | size_t |
+| taint.cpp:884:6:884:21 | StringCchPrintfA | 1 | unsigned long |
+| taint.cpp:884:6:884:21 | StringCchPrintfA | 2 | const char * |
+| taint.cpp:884:6:884:21 | StringCchPrintfA | 3 | ... |
+| taint.cpp:885:6:885:21 | StringCchPrintfW | 0 | wchar_t * |
+| taint.cpp:885:6:885:21 | StringCchPrintfW | 1 | size_t |
+| taint.cpp:885:6:885:21 | StringCchPrintfW | 1 | unsigned long |
+| taint.cpp:885:6:885:21 | StringCchPrintfW | 2 | const wchar_t * |
+| taint.cpp:885:6:885:21 | StringCchPrintfW | 3 | ... |
+| taint.cpp:886:6:886:20 | StringCbPrintfA | 0 | char * |
+| taint.cpp:886:6:886:20 | StringCbPrintfA | 1 | size_t |
+| taint.cpp:886:6:886:20 | StringCbPrintfA | 1 | unsigned long |
+| taint.cpp:886:6:886:20 | StringCbPrintfA | 2 | const char * |
+| taint.cpp:886:6:886:20 | StringCbPrintfA | 3 | ... |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 0 | char * |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 1 | size_t |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 1 | unsigned long |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 2 | char ** |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 3 | size_t * |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 3 | unsigned long * |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 4 | unsigned long |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 5 | const char * |
+| taint.cpp:887:6:887:23 | StringCchPrintfExA | 6 | ... |
+| taint.cpp:888:6:888:22 | StringCchVPrintfA | 0 | char * |
+| taint.cpp:888:6:888:22 | StringCchVPrintfA | 1 | size_t |
+| taint.cpp:888:6:888:22 | StringCchVPrintfA | 1 | unsigned long |
+| taint.cpp:888:6:888:22 | StringCchVPrintfA | 2 | const char * |
+| taint.cpp:888:6:888:22 | StringCchVPrintfA | 3 | va_list |
+| taint.cpp:888:6:888:22 | StringCchVPrintfA | 3 | void * |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 0 | char * |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 1 | size_t |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 1 | unsigned long |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 2 | char ** |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 3 | size_t * |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 3 | unsigned long * |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 4 | unsigned long |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 5 | const char * |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 6 | va_list |
+| taint.cpp:889:6:889:24 | StringCchVPrintfExA | 6 | void * |
 | thread.cpp:4:6:4:9 | sink | 0 | int |
 | thread.cpp:6:8:6:8 | operator= | 0 | S && |
 | thread.cpp:6:8:6:8 | operator= | 0 | const S & |

cpp/ql/test/library-tests/ir/ir/PrintAST.expected

@@ -25796,9 +25796,9 @@ ir.cpp:
 # 2919|     getExpr(): [FunctionCall] call to VariableTemplateFunc
 # 2919|         Type = [DoubleType] double
 # 2919|         ValueCategory = prvalue
-# 2919|       getArgument(0): [Literal] 2.299999999999999822
+# 2919|       getArgument(0): [Literal] 2.3
 # 2919|           Type = [DoubleType] double
-# 2919|           Value = [Literal] 2.299999999999999822
+# 2919|           Value = [Literal] 2.3
 # 2919|           ValueCategory = prvalue
 # 2919|     getExpr().getFullyConverted(): [CStyleCast] (int)...
 # 2919|         Conversion = [FloatingPointToIntegralConversion] floating point to integral conversion

cpp/ql/test/library-tests/ir/ir/aliased_ir.expected

@@ -12954,21 +12954,21 @@ ir.cpp:
 
 # 1592| double StructuredBindingTupleRefGet::d
 # 1592|   Block 0
-# 1592|     v1592_1(void)                                = EnterFunction                  : 
-# 1592|     m1592_2(unknown)                             = AliasedDefinition              : 
-# 1592|     m1592_3(unknown)                             = InitializeNonLocal             : 
-# 1592|     m1592_4(unknown)                             = Chi                            : total:m1592_2, partial:m1592_3
-# 1592|     r1592_5(glval<unknown>)                      = VariableAddress[#this]         : 
-# 1592|     m1592_6(glval<StructuredBindingTupleRefGet>) = InitializeParameter[#this]     : &:r1592_5
-# 1592|     r1592_7(glval<StructuredBindingTupleRefGet>) = Load[#this]                    : &:r1592_5, m1592_6
-# 1592|     m1592_8(StructuredBindingTupleRefGet)        = InitializeIndirection[#this]   : &:r1592_7
-# 1592|     r1592_9(glval<double>)                       = FieldAddress[d]                : r1592_7
-# 1592|     r1592_10(double)                             = Constant[2.200000000000000178] : 
-# 1592|     m1592_11(double)                             = Store[?]                       : &:r1592_9, r1592_10
-# 1592|     m1592_12(unknown)                            = Chi                            : total:m1592_8, partial:m1592_11
-# 1592|     v1592_13(void)                               = ReturnVoid                     : 
-# 1592|     v1592_14(void)                               = AliasedUse                     : m1592_3
-# 1592|     v1592_15(void)                               = ExitFunction                   : 
+# 1592|     v1592_1(void)                                = EnterFunction                : 
+# 1592|     m1592_2(unknown)                             = AliasedDefinition            : 
+# 1592|     m1592_3(unknown)                             = InitializeNonLocal           : 
+# 1592|     m1592_4(unknown)                             = Chi                          : total:m1592_2, partial:m1592_3
+# 1592|     r1592_5(glval<unknown>)                      = VariableAddress[#this]       : 
+# 1592|     m1592_6(glval<StructuredBindingTupleRefGet>) = InitializeParameter[#this]   : &:r1592_5
+# 1592|     r1592_7(glval<StructuredBindingTupleRefGet>) = Load[#this]                  : &:r1592_5, m1592_6
+# 1592|     m1592_8(StructuredBindingTupleRefGet)        = InitializeIndirection[#this] : &:r1592_7
+# 1592|     r1592_9(glval<double>)                       = FieldAddress[d]              : r1592_7
+# 1592|     r1592_10(double)                             = Constant[2.2]                : 
+# 1592|     m1592_11(double)                             = Store[?]                     : &:r1592_9, r1592_10
+# 1592|     m1592_12(unknown)                            = Chi                          : total:m1592_8, partial:m1592_11
+# 1592|     v1592_13(void)                               = ReturnVoid                   : 
+# 1592|     v1592_14(void)                               = AliasedUse                   : m1592_3
+# 1592|     v1592_15(void)                               = ExitFunction                 : 
 
 # 1593| int& StructuredBindingTupleRefGet::r
 # 1593|   Block 0
@@ -21761,7 +21761,7 @@ ir.cpp:
 # 2919|     m2919_2(unknown)        = AliasedDefinition                        : 
 # 2919|     r2919_3(glval<int>)     = VariableAddress[VariableTemplateFuncUse] : 
 # 2919|     r2919_4(glval<unknown>) = FunctionAddress[VariableTemplateFunc]    : 
-# 2919|     r2919_5(double)         = Constant[2.299999999999999822]           : 
+# 2919|     r2919_5(double)         = Constant[2.3]                            : 
 # 2919|     r2919_6(double)         = Call[VariableTemplateFunc]               : func:r2919_4, 0:r2919_5
 # 2919|     m2919_7(unknown)        = ^CallSideEffect                          : ~m2919_2
 # 2919|     m2919_8(unknown)        = Chi                                      : total:m2919_2, partial:m2919_7

cpp/ql/test/library-tests/ir/ir/raw_ir.expected

@@ -11861,19 +11861,19 @@ ir.cpp:
 
 # 1592| double StructuredBindingTupleRefGet::d
 # 1592|   Block 0
-# 1592|     v1592_1(void)                                 = EnterFunction                  : 
-# 1592|     mu1592_2(unknown)                             = AliasedDefinition              : 
-# 1592|     mu1592_3(unknown)                             = InitializeNonLocal             : 
-# 1592|     r1592_4(glval<unknown>)                       = VariableAddress[#this]         : 
-# 1592|     mu1592_5(glval<StructuredBindingTupleRefGet>) = InitializeParameter[#this]     : &:r1592_4
-# 1592|     r1592_6(glval<StructuredBindingTupleRefGet>)  = Load[#this]                    : &:r1592_4, ~m?
-# 1592|     mu1592_7(StructuredBindingTupleRefGet)        = InitializeIndirection[#this]   : &:r1592_6
-# 1592|     r1592_8(glval<double>)                        = FieldAddress[d]                : r1592_6
-# 1592|     r1592_9(double)                               = Constant[2.200000000000000178] : 
-# 1592|     mu1592_10(double)                             = Store[?]                       : &:r1592_8, r1592_9
-# 1592|     v1592_11(void)                                = ReturnVoid                     : 
-# 1592|     v1592_12(void)                                = AliasedUse                     : ~m?
-# 1592|     v1592_13(void)                                = ExitFunction                   : 
+# 1592|     v1592_1(void)                                 = EnterFunction                : 
+# 1592|     mu1592_2(unknown)                             = AliasedDefinition            : 
+# 1592|     mu1592_3(unknown)                             = InitializeNonLocal           : 
+# 1592|     r1592_4(glval<unknown>)                       = VariableAddress[#this]       : 
+# 1592|     mu1592_5(glval<StructuredBindingTupleRefGet>) = InitializeParameter[#this]   : &:r1592_4
+# 1592|     r1592_6(glval<StructuredBindingTupleRefGet>)  = Load[#this]                  : &:r1592_4, ~m?
+# 1592|     mu1592_7(StructuredBindingTupleRefGet)        = InitializeIndirection[#this] : &:r1592_6
+# 1592|     r1592_8(glval<double>)                        = FieldAddress[d]              : r1592_6
+# 1592|     r1592_9(double)                               = Constant[2.2]                : 
+# 1592|     mu1592_10(double)                             = Store[?]                     : &:r1592_8, r1592_9
+# 1592|     v1592_11(void)                                = ReturnVoid                   : 
+# 1592|     v1592_12(void)                                = AliasedUse                   : ~m?
+# 1592|     v1592_13(void)                                = ExitFunction                 : 
 
 # 1593| int& StructuredBindingTupleRefGet::r
 # 1593|   Block 0
@@ -19768,7 +19768,7 @@ ir.cpp:
 # 2919|     mu2919_2(unknown)       = AliasedDefinition                        : 
 # 2919|     r2919_3(glval<int>)     = VariableAddress[VariableTemplateFuncUse] : 
 # 2919|     r2919_4(glval<unknown>) = FunctionAddress[VariableTemplateFunc]    : 
-# 2919|     r2919_5(double)         = Constant[2.299999999999999822]           : 
+# 2919|     r2919_5(double)         = Constant[2.3]                            : 
 # 2919|     r2919_6(double)         = Call[VariableTemplateFunc]               : func:r2919_4, 0:r2919_5
 # 2919|     mu2919_7(unknown)       = ^CallSideEffect                          : ~m?
 # 2919|     r2919_8(int)            = Convert                                  : r2919_6

cpp/ql/test/library-tests/rangeanalysis/SimpleRangeAnalysis/nrOfBounds.expected

@@ -1293,12 +1293,12 @@ estimateNrOfBounds
 | test.c:415:26:415:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:415:30:415:30 | q | 1.0 | 1.0 | 1.0 |
 | test.c:415:30:415:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:415:34:415:43 | 0.4743882700000000008 | 1.0 | -1.0 | -1.0 |
-| test.c:415:47:415:56 | 0.1433388700000000071 | 1.0 | -1.0 | -1.0 |
-| test.c:415:60:415:69 | 0.3527920299999999787 | 1.0 | -1.0 | -1.0 |
-| test.c:415:73:415:82 | 0.3920645799999999959 | 1.0 | -1.0 | -1.0 |
-| test.c:415:86:415:95 | 0.2154022499999999896 | 1.0 | -1.0 | -1.0 |
-| test.c:415:99:415:108 | 0.4049680500000000238 | 1.0 | -1.0 | -1.0 |
+| test.c:415:34:415:43 | 0.47438827 | 1.0 | -1.0 | -1.0 |
+| test.c:415:47:415:56 | 0.14333887 | 1.0 | -1.0 | -1.0 |
+| test.c:415:60:415:69 | 0.35279203 | 1.0 | -1.0 | -1.0 |
+| test.c:415:73:415:82 | 0.39206458 | 1.0 | -1.0 | -1.0 |
+| test.c:415:86:415:95 | 0.21540225 | 1.0 | -1.0 | -1.0 |
+| test.c:415:99:415:108 | 0.40496805 | 1.0 | -1.0 | -1.0 |
 | test.c:416:14:416:14 | m | 2.0 | 1.0 | 1.0 |
 | test.c:416:14:416:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:416:18:416:18 | n | 3.0 | 1.0 | 1.0 |
@@ -1309,12 +1309,12 @@ estimateNrOfBounds
 | test.c:416:26:416:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:416:30:416:30 | q | 3.0 | 1.0 | 1.0 |
 | test.c:416:30:416:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:416:34:416:43 | 0.3418334800000000229 | 1.0 | -1.0 | -1.0 |
-| test.c:416:47:416:56 | 0.3533464000000000049 | 1.0 | -1.0 | -1.0 |
-| test.c:416:60:416:69 | 0.2224785300000000077 | 1.0 | -1.0 | -1.0 |
-| test.c:416:73:416:82 | 0.326618929999999974 | 1.0 | -1.0 | -1.0 |
-| test.c:416:86:416:95 | 0.5927046500000000551 | 1.0 | -1.0 | -1.0 |
-| test.c:416:99:416:108 | 0.5297741000000000255 | 1.0 | -1.0 | -1.0 |
+| test.c:416:34:416:43 | 0.34183348 | 1.0 | -1.0 | -1.0 |
+| test.c:416:47:416:56 | 0.3533464 | 1.0 | -1.0 | -1.0 |
+| test.c:416:60:416:69 | 0.22247853 | 1.0 | -1.0 | -1.0 |
+| test.c:416:73:416:82 | 0.32661893 | 1.0 | -1.0 | -1.0 |
+| test.c:416:86:416:95 | 0.59270465 | 1.0 | -1.0 | -1.0 |
+| test.c:416:99:416:108 | 0.5297741 | 1.0 | -1.0 | -1.0 |
 | test.c:417:14:417:14 | m | 3.5 | 1.0 | 1.0 |
 | test.c:417:14:417:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:417:18:417:18 | n | 8.0 | 1.0 | 1.0 |
@@ -1325,12 +1325,12 @@ estimateNrOfBounds
 | test.c:417:26:417:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:417:30:417:30 | q | 8.0 | 1.0 | 1.0 |
 | test.c:417:30:417:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:417:34:417:43 | 0.774296030000000024 | 1.0 | -1.0 | -1.0 |
-| test.c:417:47:417:56 | 0.3147808400000000062 | 1.0 | -1.0 | -1.0 |
-| test.c:417:60:417:69 | 0.3123551399999999756 | 1.0 | -1.0 | -1.0 |
-| test.c:417:73:417:82 | 0.05121255999999999725 | 1.0 | -1.0 | -1.0 |
-| test.c:417:86:417:95 | 0.7931074500000000471 | 1.0 | -1.0 | -1.0 |
-| test.c:417:99:417:108 | 0.6798145100000000385 | 1.0 | -1.0 | -1.0 |
+| test.c:417:34:417:43 | 0.77429603 | 1.0 | -1.0 | -1.0 |
+| test.c:417:47:417:56 | 0.31478084 | 1.0 | -1.0 | -1.0 |
+| test.c:417:60:417:69 | 0.31235514 | 1.0 | -1.0 | -1.0 |
+| test.c:417:73:417:82 | 0.05121256 | 1.0 | -1.0 | -1.0 |
+| test.c:417:86:417:95 | 0.79310745 | 1.0 | -1.0 | -1.0 |
+| test.c:417:99:417:108 | 0.67981451 | 1.0 | -1.0 | -1.0 |
 | test.c:418:14:418:14 | m | 5.75 | 1.0 | 1.0 |
 | test.c:418:14:418:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:418:18:418:18 | n | 20.5 | 1.0 | 1.0 |
@@ -1341,12 +1341,12 @@ estimateNrOfBounds
 | test.c:418:26:418:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:418:30:418:30 | q | 20.5 | 1.0 | 1.0 |
 | test.c:418:30:418:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:418:34:418:43 | 0.4472955599999999809 | 1.0 | -1.0 | -1.0 |
-| test.c:418:47:418:56 | 0.8059920200000000312 | 1.0 | -1.0 | -1.0 |
-| test.c:418:60:418:69 | 0.9899726199999999698 | 1.0 | -1.0 | -1.0 |
-| test.c:418:73:418:82 | 0.5995273199999999747 | 1.0 | -1.0 | -1.0 |
-| test.c:418:86:418:95 | 0.3697694799999999837 | 1.0 | -1.0 | -1.0 |
-| test.c:418:99:418:108 | 0.8386683499999999514 | 1.0 | -1.0 | -1.0 |
+| test.c:418:34:418:43 | 0.44729556 | 1.0 | -1.0 | -1.0 |
+| test.c:418:47:418:56 | 0.80599202 | 1.0 | -1.0 | -1.0 |
+| test.c:418:60:418:69 | 0.98997262 | 1.0 | -1.0 | -1.0 |
+| test.c:418:73:418:82 | 0.59952732 | 1.0 | -1.0 | -1.0 |
+| test.c:418:86:418:95 | 0.36976948 | 1.0 | -1.0 | -1.0 |
+| test.c:418:99:418:108 | 0.83866835 | 1.0 | -1.0 | -1.0 |
 | test.c:419:14:419:14 | m | 9.125 | 1.0 | 1.0 |
 | test.c:419:14:419:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:419:18:419:18 | n | 51.75 | 1.0 | 1.0 |
@@ -1357,12 +1357,12 @@ estimateNrOfBounds
 | test.c:419:26:419:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:419:30:419:30 | q | 51.75 | 1.0 | 1.0 |
 | test.c:419:30:419:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:419:34:419:43 | 0.4931182800000000199 | 1.0 | -1.0 | -1.0 |
-| test.c:419:47:419:56 | 0.9038991100000000056 | 1.0 | -1.0 | -1.0 |
-| test.c:419:60:419:69 | 0.1059771199999999941 | 1.0 | -1.0 | -1.0 |
-| test.c:419:73:419:82 | 0.2177842600000000073 | 1.0 | -1.0 | -1.0 |
-| test.c:419:86:419:95 | 0.7248596600000000167 | 1.0 | -1.0 | -1.0 |
-| test.c:419:99:419:108 | 0.6873487400000000136 | 1.0 | -1.0 | -1.0 |
+| test.c:419:34:419:43 | 0.49311828 | 1.0 | -1.0 | -1.0 |
+| test.c:419:47:419:56 | 0.90389911 | 1.0 | -1.0 | -1.0 |
+| test.c:419:60:419:69 | 0.10597712 | 1.0 | -1.0 | -1.0 |
+| test.c:419:73:419:82 | 0.21778426 | 1.0 | -1.0 | -1.0 |
+| test.c:419:86:419:95 | 0.72485966 | 1.0 | -1.0 | -1.0 |
+| test.c:419:99:419:108 | 0.68734874 | 1.0 | -1.0 | -1.0 |
 | test.c:420:14:420:14 | m | 14.1875 | 1.0 | 1.0 |
 | test.c:420:14:420:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:420:18:420:18 | n | 129.875 | 1.0 | 1.0 |
@@ -1373,12 +1373,12 @@ estimateNrOfBounds
 | test.c:420:26:420:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:420:30:420:30 | q | 129.875 | 1.0 | 1.0 |
 | test.c:420:30:420:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:420:34:420:43 | 0.4745284799999999747 | 1.0 | -1.0 | -1.0 |
-| test.c:420:47:420:56 | 0.107866500000000004 | 1.0 | -1.0 | -1.0 |
-| test.c:420:60:420:69 | 0.1188457599999999947 | 1.0 | -1.0 | -1.0 |
-| test.c:420:73:420:82 | 0.7616405200000000431 | 1.0 | -1.0 | -1.0 |
-| test.c:420:86:420:95 | 0.3480889200000000239 | 1.0 | -1.0 | -1.0 |
-| test.c:420:99:420:108 | 0.584408649999999974 | 1.0 | -1.0 | -1.0 |
+| test.c:420:34:420:43 | 0.47452848 | 1.0 | -1.0 | -1.0 |
+| test.c:420:47:420:56 | 0.1078665 | 1.0 | -1.0 | -1.0 |
+| test.c:420:60:420:69 | 0.11884576 | 1.0 | -1.0 | -1.0 |
+| test.c:420:73:420:82 | 0.76164052 | 1.0 | -1.0 | -1.0 |
+| test.c:420:86:420:95 | 0.34808892 | 1.0 | -1.0 | -1.0 |
+| test.c:420:99:420:108 | 0.58440865 | 1.0 | -1.0 | -1.0 |
 | test.c:421:14:421:14 | m | 21.78125 | 1.0 | 1.0 |
 | test.c:421:14:421:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:421:18:421:18 | n | 325.1875 | 1.0 | 1.0 |
@@ -1390,11 +1390,11 @@ estimateNrOfBounds
 | test.c:421:30:421:30 | q | 325.1875 | 1.0 | 1.0 |
 | test.c:421:30:421:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:421:34:421:43 | 0.02524326 | 1.0 | -1.0 | -1.0 |
-| test.c:421:47:421:56 | 0.8290504600000000446 | 1.0 | -1.0 | -1.0 |
-| test.c:421:60:421:69 | 0.95823075000000002 | 1.0 | -1.0 | -1.0 |
-| test.c:421:73:421:82 | 0.1251655799999999985 | 1.0 | -1.0 | -1.0 |
-| test.c:421:86:421:95 | 0.8523517900000000536 | 1.0 | -1.0 | -1.0 |
-| test.c:421:99:421:108 | 0.3623238400000000081 | 1.0 | -1.0 | -1.0 |
+| test.c:421:47:421:56 | 0.82905046 | 1.0 | -1.0 | -1.0 |
+| test.c:421:60:421:69 | 0.95823075 | 1.0 | -1.0 | -1.0 |
+| test.c:421:73:421:82 | 0.12516558 | 1.0 | -1.0 | -1.0 |
+| test.c:421:86:421:95 | 0.85235179 | 1.0 | -1.0 | -1.0 |
+| test.c:421:99:421:108 | 0.36232384 | 1.0 | -1.0 | -1.0 |
 | test.c:422:14:422:14 | m | 33.171875 | 1.0 | 1.0 |
 | test.c:422:14:422:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:422:18:422:18 | n | 813.46875 | 1.0 | 1.0 |
@@ -1405,12 +1405,12 @@ estimateNrOfBounds
 | test.c:422:26:422:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:422:30:422:30 | q | 813.46875 | 1.0 | 1.0 |
 | test.c:422:30:422:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:422:34:422:43 | 0.3870862600000000153 | 1.0 | -1.0 | -1.0 |
-| test.c:422:47:422:56 | 0.3287604399999999871 | 1.0 | -1.0 | -1.0 |
-| test.c:422:60:422:69 | 0.1496348500000000137 | 1.0 | -1.0 | -1.0 |
-| test.c:422:73:422:82 | 0.4504110800000000192 | 1.0 | -1.0 | -1.0 |
-| test.c:422:86:422:95 | 0.4864090899999999884 | 1.0 | -1.0 | -1.0 |
-| test.c:422:99:422:108 | 0.8433127200000000157 | 1.0 | -1.0 | -1.0 |
+| test.c:422:34:422:43 | 0.38708626 | 1.0 | -1.0 | -1.0 |
+| test.c:422:47:422:56 | 0.32876044 | 1.0 | -1.0 | -1.0 |
+| test.c:422:60:422:69 | 0.14963485 | 1.0 | -1.0 | -1.0 |
+| test.c:422:73:422:82 | 0.45041108 | 1.0 | -1.0 | -1.0 |
+| test.c:422:86:422:95 | 0.48640909 | 1.0 | -1.0 | -1.0 |
+| test.c:422:99:422:108 | 0.84331272 | 1.0 | -1.0 | -1.0 |
 | test.c:423:14:423:14 | m | 50.2578125 | 1.0 | 1.0 |
 | test.c:423:14:423:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:423:18:423:18 | n | 2034.171875 | 1.0 | 1.0 |
@@ -1421,12 +1421,12 @@ estimateNrOfBounds
 | test.c:423:26:423:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:423:30:423:30 | q | 2034.171875 | 1.0 | 1.0 |
 | test.c:423:30:423:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:423:34:423:43 | 0.1575506299999999971 | 1.0 | -1.0 | -1.0 |
-| test.c:423:47:423:56 | 0.7708683299999999905 | 1.0 | -1.0 | -1.0 |
-| test.c:423:60:423:69 | 0.2642848099999999811 | 1.0 | -1.0 | -1.0 |
-| test.c:423:73:423:82 | 0.1480050800000000111 | 1.0 | -1.0 | -1.0 |
-| test.c:423:86:423:95 | 0.374281430000000026 | 1.0 | -1.0 | -1.0 |
-| test.c:423:99:423:108 | 0.05328182000000000057 | 1.0 | -1.0 | -1.0 |
+| test.c:423:34:423:43 | 0.15755063 | 1.0 | -1.0 | -1.0 |
+| test.c:423:47:423:56 | 0.77086833 | 1.0 | -1.0 | -1.0 |
+| test.c:423:60:423:69 | 0.26428481 | 1.0 | -1.0 | -1.0 |
+| test.c:423:73:423:82 | 0.14800508 | 1.0 | -1.0 | -1.0 |
+| test.c:423:86:423:95 | 0.37428143 | 1.0 | -1.0 | -1.0 |
+| test.c:423:99:423:108 | 0.05328182 | 1.0 | -1.0 | -1.0 |
 | test.c:424:14:424:14 | m | 75.88671875 | 1.0 | 1.0 |
 | test.c:424:14:424:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:424:18:424:18 | n | 5085.9296875 | 1.0 | 1.0 |
@@ -1437,12 +1437,12 @@ estimateNrOfBounds
 | test.c:424:26:424:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:424:30:424:30 | q | 5085.9296875 | 1.0 | 1.0 |
 | test.c:424:30:424:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:424:34:424:43 | 0.4173653600000000186 | 1.0 | -1.0 | -1.0 |
-| test.c:424:47:424:56 | 0.7682662799999999681 | 1.0 | -1.0 | -1.0 |
-| test.c:424:60:424:69 | 0.2764323799999999776 | 1.0 | -1.0 | -1.0 |
-| test.c:424:73:424:82 | 0.5567927400000000082 | 1.0 | -1.0 | -1.0 |
-| test.c:424:86:424:95 | 0.3946885700000000163 | 1.0 | -1.0 | -1.0 |
-| test.c:424:99:424:108 | 0.6907214400000000198 | 1.0 | -1.0 | -1.0 |
+| test.c:424:34:424:43 | 0.41736536 | 1.0 | -1.0 | -1.0 |
+| test.c:424:47:424:56 | 0.76826628 | 1.0 | -1.0 | -1.0 |
+| test.c:424:60:424:69 | 0.27643238 | 1.0 | -1.0 | -1.0 |
+| test.c:424:73:424:82 | 0.55679274 | 1.0 | -1.0 | -1.0 |
+| test.c:424:86:424:95 | 0.39468857 | 1.0 | -1.0 | -1.0 |
+| test.c:424:99:424:108 | 0.69072144 | 1.0 | -1.0 | -1.0 |
 | test.c:425:14:425:14 | m | 114.330078125 | 1.0 | 1.0 |
 | test.c:425:14:425:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:425:18:425:18 | n | 12715.32421875 | 1.0 | 1.0 |
@@ -1453,12 +1453,12 @@ estimateNrOfBounds
 | test.c:425:26:425:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:425:30:425:30 | q | 12715.32421875 | 1.0 | 1.0 |
 | test.c:425:30:425:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:425:34:425:43 | 0.8895534499999999678 | 1.0 | -1.0 | -1.0 |
-| test.c:425:47:425:56 | 0.2990482400000000207 | 1.0 | -1.0 | -1.0 |
-| test.c:425:60:425:69 | 0.7624258299999999711 | 1.0 | -1.0 | -1.0 |
-| test.c:425:73:425:82 | 0.2051910999999999874 | 1.0 | -1.0 | -1.0 |
-| test.c:425:86:425:95 | 0.8874555899999999609 | 1.0 | -1.0 | -1.0 |
-| test.c:425:99:425:108 | 0.8137279800000000174 | 1.0 | -1.0 | -1.0 |
+| test.c:425:34:425:43 | 0.88955345 | 1.0 | -1.0 | -1.0 |
+| test.c:425:47:425:56 | 0.29904824 | 1.0 | -1.0 | -1.0 |
+| test.c:425:60:425:69 | 0.76242583 | 1.0 | -1.0 | -1.0 |
+| test.c:425:73:425:82 | 0.2051911 | 1.0 | -1.0 | -1.0 |
+| test.c:425:86:425:95 | 0.88745559 | 1.0 | -1.0 | -1.0 |
+| test.c:425:99:425:108 | 0.81372798 | 1.0 | -1.0 | -1.0 |
 | test.c:426:14:426:14 | m | 171.9951171875 | 1.0 | 1.0 |
 | test.c:426:14:426:108 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:426:18:426:18 | n | 31788.810546875 | 1.0 | 1.0 |
@@ -1469,12 +1469,12 @@ estimateNrOfBounds
 | test.c:426:26:426:69 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
 | test.c:426:30:426:30 | q | 31788.810546875 | 1.0 | 1.0 |
 | test.c:426:30:426:56 | ... ? ... : ... | 1.0 | 1.0 | 1.0 |
-| test.c:426:34:426:43 | 0.4218627600000000033 | 1.0 | -1.0 | -1.0 |
-| test.c:426:47:426:56 | 0.5384335799999999672 | 1.0 | -1.0 | -1.0 |
-| test.c:426:60:426:69 | 0.4499667900000000054 | 1.0 | -1.0 | -1.0 |
-| test.c:426:73:426:82 | 0.1320411400000000013 | 1.0 | -1.0 | -1.0 |
-| test.c:426:86:426:95 | 0.5203124099999999475 | 1.0 | -1.0 | -1.0 |
-| test.c:426:99:426:108 | 0.4276264699999999808 | 1.0 | -1.0 | -1.0 |
+| test.c:426:34:426:43 | 0.42186276 | 1.0 | -1.0 | -1.0 |
+| test.c:426:47:426:56 | 0.53843358 | 1.0 | -1.0 | -1.0 |
+| test.c:426:60:426:69 | 0.44996679 | 1.0 | -1.0 | -1.0 |
+| test.c:426:73:426:82 | 0.13204114 | 1.0 | -1.0 | -1.0 |
+| test.c:426:86:426:95 | 0.52031241 | 1.0 | -1.0 | -1.0 |
+| test.c:426:99:426:108 | 0.42762647 | 1.0 | -1.0 | -1.0 |
 | test.c:432:19:432:19 | a | 1.0 | 1.0 | 1.0 |
 | test.c:432:19:432:23 | ... + ... | 1.0 | 1.0 | 1.0 |
 | test.c:432:19:432:27 | ... + ... | 1.0 | 1.0 | 1.0 |

cpp/ql/test/query-tests/Likely Bugs/Format/NonConstantFormat/NonConstantFormat.expected

@@ -11,8 +11,13 @@ edges
 | nested.cpp:86:19:86:46 | *call to __builtin_alloca | nested.cpp:87:18:87:20 | *fmt | provenance |  |
 | test.cpp:46:27:46:30 | **argv | test.cpp:130:20:130:26 | *access to array | provenance |  |
 | test.cpp:167:31:167:34 | *data | test.cpp:170:12:170:14 | *res | provenance | DataFlowFunction |
+| test.cpp:179:6:179:21 | [summary param] *2 in StringCchPrintfW | test.cpp:179:6:179:21 | [summary param] *0 in StringCchPrintfW [Return] | provenance | MaD:403 |
+| test.cpp:193:32:193:34 | *str | test.cpp:195:31:195:33 | *str | provenance |  |
 | test.cpp:193:32:193:34 | *str | test.cpp:195:31:195:33 | *str | provenance |  |
 | test.cpp:193:32:193:34 | *str | test.cpp:197:11:197:14 | *wstr | provenance | TaintFunction |
+| test.cpp:195:20:195:23 | StringCchPrintfW output argument | test.cpp:197:11:197:14 | *wstr | provenance |  |
+| test.cpp:195:31:195:33 | *str | test.cpp:179:6:179:21 | [summary param] *2 in StringCchPrintfW | provenance |  |
+| test.cpp:195:31:195:33 | *str | test.cpp:195:20:195:23 | StringCchPrintfW output argument | provenance | MaD:403 |
 | test.cpp:204:25:204:36 | *call to get_string | test.cpp:204:25:204:36 | *call to get_string | provenance |  |
 | test.cpp:204:25:204:36 | *call to get_string | test.cpp:205:12:205:20 | *... + ... | provenance |  |
 | test.cpp:204:25:204:36 | *call to get_string | test.cpp:206:12:206:16 | *hello | provenance |  |
@@ -55,7 +60,11 @@ nodes
 | test.cpp:130:20:130:26 | *access to array | semmle.label | *access to array |
 | test.cpp:167:31:167:34 | *data | semmle.label | *data |
 | test.cpp:170:12:170:14 | *res | semmle.label | *res |
+| test.cpp:179:6:179:21 | [summary param] *0 in StringCchPrintfW [Return] | semmle.label | [summary param] *0 in StringCchPrintfW [Return] |
+| test.cpp:179:6:179:21 | [summary param] *2 in StringCchPrintfW | semmle.label | [summary param] *2 in StringCchPrintfW |
 | test.cpp:193:32:193:34 | *str | semmle.label | *str |
+| test.cpp:195:20:195:23 | StringCchPrintfW output argument | semmle.label | StringCchPrintfW output argument |
+| test.cpp:195:31:195:33 | *str | semmle.label | *str |
 | test.cpp:195:31:195:33 | *str | semmle.label | *str |
 | test.cpp:197:11:197:14 | *wstr | semmle.label | *wstr |
 | test.cpp:204:25:204:36 | *call to get_string | semmle.label | *call to get_string |
@@ -88,6 +97,7 @@ nodes
 | test.cpp:245:25:245:36 | *call to get_string | semmle.label | *call to get_string |
 | test.cpp:247:12:247:16 | *hello | semmle.label | *hello |
 subpaths
+| test.cpp:195:31:195:33 | *str | test.cpp:179:6:179:21 | [summary param] *2 in StringCchPrintfW | test.cpp:179:6:179:21 | [summary param] *0 in StringCchPrintfW [Return] | test.cpp:195:20:195:23 | StringCchPrintfW output argument |
 #select
 | NonConstantFormat.c:30:10:30:16 | *access to array | NonConstantFormat.c:28:27:28:30 | **argv | NonConstantFormat.c:30:10:30:16 | *access to array | The format string argument to $@ has a source which cannot be verified to originate from a string literal. | NonConstantFormat.c:30:3:30:8 | call to printf | printf |
 | NonConstantFormat.c:41:9:41:45 | *call to any_random_function | NonConstantFormat.c:41:9:41:45 | *call to any_random_function | NonConstantFormat.c:41:9:41:45 | *call to any_random_function | The format string argument to $@ has a source which cannot be verified to originate from a string literal. | NonConstantFormat.c:41:2:41:7 | call to printf | printf |

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/ExprHasNoEffect.expected

@@ -0,0 +1,2 @@
+| conftest.c.c:4:3:4:8 | call to strlen | This expression has no effect (because $@ has no external side effects). | conftest.h:3:8:3:13 | strlen | strlen |
+| conftest_abc.c:4:3:4:8 | call to strlen | This expression has no effect (because $@ has no external side effects). | conftest.h:3:8:3:13 | strlen | strlen |

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/ExprHasNoEffect.qlref

@@ -0,0 +1 @@
+Likely Bugs/Likely Typos/ExprHasNoEffect.ql

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.c

@@ -0,0 +1,6 @@
+#include "conftest.h"
+
+int main2() {
+  strlen(""); // GOOD: conftest files are ignored
+  return 0;
+}

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.c.c

@@ -0,0 +1,6 @@
+#include "conftest.h"
+
+int main3() {
+  strlen(""); // BAD: not a `conftest` file, as `conftest` is not directly followed by the extension or a sequence of numbers.
+  return 0;
+}

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.cpp

@@ -0,0 +1,6 @@
+#include "conftest.h"
+
+int main4() {
+  strlen(""); // GOOD: conftest files are ignored
+  return 0;
+}

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest.h

@@ -0,0 +1,3 @@
+typedef long long size_t;
+
+size_t strlen(const char *s);

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest123.c

@@ -0,0 +1,6 @@
+#include "conftest.h"
+
+int main5() {
+  strlen(""); // GOOD: conftest files are ignored
+  return 0;
+}

cpp/ql/test/query-tests/Likely Bugs/Likely Typos/ExprHasNoEffect/autoconf/conftest_abc.c

@@ -0,0 +1,6 @@
+#include "conftest.h"
+
+int main1() {
+  strlen(""); // BAD: not a `conftest` file, as `conftest` is not directly followed by the extension or a sequence of numbers.
+  return 0;
+}

cpp/ql/test/query-tests/Likely Bugs/Underspecified Functions/MistypedFunctionArguments.expected

@@ -2,10 +2,10 @@
 | test.c:33:3:33:19 | call to not_yet_declared2 | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:77:6:77:22 | not_yet_declared2 | not_yet_declared2 | test.c:33:21:33:22 | ca | ca | file://:0:0:0:0 | int[4] | int[4] | test.c:77:24:77:26 | (unnamed parameter 0) | int (unnamed parameter 0) |
 | test.c:41:3:41:29 | call to declared_empty_defined_with | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:78:6:78:32 | declared_empty_defined_with | declared_empty_defined_with | test.c:41:31:41:32 | & ... | & ... | file://:0:0:0:0 | int * | int * | test.c:78:38:78:38 | x | int x |
 | test.c:45:3:45:27 | call to not_declared_defined_with | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:81:6:81:30 | not_declared_defined_with | not_declared_defined_with | test.c:45:29:45:31 | 4 | 4 | file://:0:0:0:0 | long long | long long | test.c:81:36:81:36 | x | int x |
-| test.c:45:3:45:27 | call to not_declared_defined_with | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:81:6:81:30 | not_declared_defined_with | not_declared_defined_with | test.c:45:37:45:42 | 2500000000.0 | 2500000000.0 | file://:0:0:0:0 | float | float | test.c:81:50:81:50 | z | int z |
-| test.c:48:3:48:24 | call to declared_with_pointers | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:5:6:5:27 | declared_with_pointers | declared_with_pointers | test.c:48:26:48:31 | 3500000000000000.0 | 3500000000000000.0 | file://:0:0:0:0 | double | double | test.c:93:34:93:34 | x | int * x |
+| test.c:45:3:45:27 | call to not_declared_defined_with | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:81:6:81:30 | not_declared_defined_with | not_declared_defined_with | test.c:45:37:45:42 | 2.5E9 | 2.5E9 | file://:0:0:0:0 | float | float | test.c:81:50:81:50 | z | int z |
+| test.c:48:3:48:24 | call to declared_with_pointers | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:5:6:5:27 | declared_with_pointers | declared_with_pointers | test.c:48:26:48:31 | 3.5E15 | 3.5E15 | file://:0:0:0:0 | double | double | test.c:93:34:93:34 | x | int * x |
 | test.c:48:3:48:24 | call to declared_with_pointers | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:5:6:5:27 | declared_with_pointers | declared_with_pointers | test.c:48:34:48:34 | 0 | 0 | file://:0:0:0:0 | int | int | test.c:93:43:93:43 | y | void * y |
-| test.c:48:3:48:24 | call to declared_with_pointers | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:93:6:93:27 | declared_with_pointers | declared_with_pointers | test.c:48:26:48:31 | 3500000000000000.0 | 3500000000000000.0 | file://:0:0:0:0 | double | double | test.c:93:34:93:34 | x | int * x |
+| test.c:48:3:48:24 | call to declared_with_pointers | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:93:6:93:27 | declared_with_pointers | declared_with_pointers | test.c:48:26:48:31 | 3.5E15 | 3.5E15 | file://:0:0:0:0 | double | double | test.c:93:34:93:34 | x | int * x |
 | test.c:48:3:48:24 | call to declared_with_pointers | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:93:6:93:27 | declared_with_pointers | declared_with_pointers | test.c:48:34:48:34 | 0 | 0 | file://:0:0:0:0 | int | int | test.c:93:43:93:43 | y | void * y |
 | test.c:50:3:50:21 | call to declared_with_array | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:6:6:6:24 | declared_with_array | declared_with_array | test.c:50:23:50:24 | & ... | & ... | file://:0:0:0:0 | int * | int * | test.c:94:31:94:31 | a | char[6] a |
 | test.c:50:3:50:21 | call to declared_with_array | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:94:6:94:24 | declared_with_array | declared_with_array | test.c:50:23:50:24 | & ... | & ... | file://:0:0:0:0 | int * | int * | test.c:94:31:94:31 | a | char[6] a |
@@ -15,4 +15,4 @@
 | test.c:58:3:58:24 | call to defined_with_long_long | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:104:11:104:32 | defined_with_long_long | defined_with_long_long | test.c:58:26:58:28 | 99 | 99 | file://:0:0:0:0 | int | int | test.c:104:44:104:45 | ll | long long ll |
 | test.c:59:3:59:24 | call to defined_with_long_long | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:104:11:104:32 | defined_with_long_long | defined_with_long_long | test.c:59:26:59:26 | 3 | 3 | file://:0:0:0:0 | int | int | test.c:104:44:104:45 | ll | long long ll |
 | test.c:61:3:61:21 | call to defined_with_double | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:100:8:100:26 | defined_with_double | defined_with_double | test.c:61:23:61:25 | 2 | 2 | file://:0:0:0:0 | long long | long long | test.c:100:35:100:35 | d | double d |
-| test.c:62:3:62:24 | call to defined_with_long_long | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:104:11:104:32 | defined_with_long_long | defined_with_long_long | test.c:62:26:62:31 | 3500000000000000.0 | 3500000000000000.0 | file://:0:0:0:0 | double | double | test.c:104:44:104:45 | ll | long long ll |
+| test.c:62:3:62:24 | call to defined_with_long_long | Calling $@: argument $@ of type $@ is incompatible with parameter $@. | test.c:104:11:104:32 | defined_with_long_long | defined_with_long_long | test.c:62:26:62:31 | 3.5E15 | 3.5E15 | file://:0:0:0:0 | double | double | test.c:104:44:104:45 | ll | long long ll |

csharp/downgrades/3cabc77473cbbda95edebafea345c2e3fdfa12d9/upgrade.properties

@@ -0,0 +1,2 @@
+description: Remove `@parameter` from `@control_flow_element`
+compatibility: full

csharp/downgrades/ea7ad33252e550241975676f09fcc7b0a703deab/upgrade.properties

@@ -0,0 +1,2 @@
+description: Remove @assign_op_call_expr from @qualifiable_expr.
+compatibility: full

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/DotNet.cs

@@ -95,9 +95,9 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 args += " /p:EnableWindowsTargeting=true";
             }
 
-            if (restoreSettings.ExtraArgs is not null)
+            if (restoreSettings.NugetSources is not null)
             {
-                args += $" {restoreSettings.ExtraArgs}";
+                args += $" {restoreSettings.NugetSources}";
             }
 
             return args;

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/IDotNet.cs

@@ -17,7 +17,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         IList<string> GetNugetFeedsFromFolder(string folderPath);
     }
 
-    public record class RestoreSettings(string File, string PackageDirectory, bool ForceDotnetRefAssemblyFetching, string? ExtraArgs = null, string? PathToNugetConfig = null, bool ForceReevaluation = false, bool TargetWindows = false);
+    public record class RestoreSettings(string File, string PackageDirectory, bool ForceDotnetRefAssemblyFetching, string? NugetSources = null, string? PathToNugetConfig = null, bool ForceReevaluation = false, bool TargetWindows = false);
 
     public partial record class RestoreResult(bool Success, IList<string> Output)
     {
@@ -33,6 +33,9 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         private readonly Lazy<bool> hasNugetNoStablePackageVersionError = new(() => Output.Any(s => s.Contains("NU1103")));
         public bool HasNugetNoStablePackageVersionError => hasNugetNoStablePackageVersionError.Value;
 
+        private readonly Lazy<bool> hasNugetPackageMissingError = new(() => Output.Any(s => s.Contains("NU1101")));
+        public bool HasNugetPackageMissingError => hasNugetPackageMissingError.Value;
+
         private static IEnumerable<string> GetFirstGroupOnMatch(Regex regex, IEnumerable<string> lines) =>
             lines
                 .Select(line => regex.Match(line))

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/NugetExeWrapper.cs

@@ -33,7 +33,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         /// <summary>
         /// Create the package manager for a specified source tree.
         /// </summary>
-        public NugetExeWrapper(FileProvider fileProvider, DependencyDirectory packageDirectory, Semmle.Util.Logging.ILogger logger)
+        public NugetExeWrapper(FileProvider fileProvider, DependencyDirectory packageDirectory, Semmle.Util.Logging.ILogger logger, Func<bool> useDefaultFeed)
         {
             this.fileProvider = fileProvider;
             this.packageDirectory = packageDirectory;
@@ -43,7 +43,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             {
                 logger.LogInfo($"Found packages.config files, trying to use nuget.exe for package restore");
                 nugetExe = ResolveNugetExe();
-                if (HasNoPackageSource())
+                if (HasNoPackageSource() && useDefaultFeed())
                 {
                     // We only modify or add a top level nuget.config file
                     nugetConfigPath = Path.Combine(fileProvider.SourceDir.FullName, "nuget.config");

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/NugetPackageRestorer.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.IO;
 using System.Linq;
 using System.Net;
@@ -27,8 +28,12 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         private readonly IDiagnosticsWriter diagnosticsWriter;
         private readonly DependencyDirectory legacyPackageDirectory;
         private readonly DependencyDirectory missingPackageDirectory;
+        private readonly DependencyDirectory emptyPackageDirectory;
         private readonly ILogger logger;
         private readonly ICompilationInfoContainer compilationInfoContainer;
+        private readonly bool checkNugetFeedResponsiveness = EnvironmentVariables.GetBooleanOptOut(EnvironmentVariableNames.CheckNugetFeedResponsiveness);
+        private readonly ImmutableHashSet<string> privateRegistryFeeds;
+        private readonly bool hasPrivateRegistryFeeds;
 
         public DependencyDirectory PackageDirectory { get; }
 
@@ -45,6 +50,8 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             this.fileContent = fileContent;
             this.dotnet = dotnet;
             this.dependabotProxy = dependabotProxy;
+            this.privateRegistryFeeds = dependabotProxy?.RegistryURLs.ToImmutableHashSet() ?? [];
+            this.hasPrivateRegistryFeeds = privateRegistryFeeds.Count > 0;
             this.diagnosticsWriter = diagnosticsWriter;
             this.logger = logger;
             this.compilationInfoContainer = compilationInfoContainer;
@@ -52,6 +59,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             PackageDirectory = new DependencyDirectory("packages", "package", logger);
             legacyPackageDirectory = new DependencyDirectory("legacypackages", "legacy package", logger);
             missingPackageDirectory = new DependencyDirectory("missingpackages", "missing package", logger);
+            emptyPackageDirectory = new DependencyDirectory("empty", "empty package", logger);
         }
 
         public string? TryRestore(string package)
@@ -110,25 +118,50 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         public HashSet<AssemblyLookupLocation> Restore()
         {
             var assemblyLookupLocations = new HashSet<AssemblyLookupLocation>();
-            var checkNugetFeedResponsiveness = EnvironmentVariables.GetBooleanOptOut(EnvironmentVariableNames.CheckNugetFeedResponsiveness);
             logger.LogInfo($"Checking NuGet feed responsiveness: {checkNugetFeedResponsiveness}");
             compilationInfoContainer.CompilationInfos.Add(("NuGet feed responsiveness checked", checkNugetFeedResponsiveness ? "1" : "0"));
 
-            HashSet<string>? explicitFeeds = null;
-            HashSet<string>? allFeeds = null;
+            HashSet<string> explicitFeeds = [];
+            HashSet<string> reachableFeeds = [];
 
             try
             {
-                if (checkNugetFeedResponsiveness && !CheckFeeds(out explicitFeeds, out allFeeds))
+                // Find feeds that are configured in NuGet.config files and divide them into ones that
+                // are explicitly configured for the project or by a private registry, and "all feeds"
+                // (including inherited ones) from other locations on the host outside of the working directory.
+                (explicitFeeds, var allFeeds) = GetAllFeeds();
+
+                if (checkNugetFeedResponsiveness)
                 {
-                    // todo: we could also check the reachability of the inherited nuget feeds, but to use those in the fallback we would need to handle authentication too.
-                    var unresponsiveMissingPackageLocation = DownloadMissingPackagesFromSpecificFeeds([], explicitFeeds);
-                    return unresponsiveMissingPackageLocation is null
-                        ? []
-                        : [unresponsiveMissingPackageLocation];
+                    var inheritedFeeds = allFeeds.Except(explicitFeeds).ToHashSet();
+
+                    if (inheritedFeeds.Count > 0)
+                    {
+                        compilationInfoContainer.CompilationInfos.Add(("Inherited NuGet feed count", inheritedFeeds.Count.ToString()));
+                    }
+
+                    var timeout = CheckSpecifiedFeeds(explicitFeeds, out var reachableExplicitFeeds);
+                    reachableFeeds.UnionWith(reachableExplicitFeeds);
+
+                    var allExplicitReachable = explicitFeeds.Count == reachableExplicitFeeds.Count;
+                    EmitUnreachableFeedsDiagnostics(allExplicitReachable);
+
+                    if (timeout)
+                    {
+                        // If we experience a timeout, we use this fallback.
+                        // todo: we could also check the reachability of the inherited nuget feeds, but to use those in the fallback we would need to handle authentication too.
+                        var unresponsiveMissingPackageLocation = DownloadMissingPackagesFromSpecificFeeds([], explicitFeeds);
+                        return unresponsiveMissingPackageLocation is null
+                            ? []
+                            : [unresponsiveMissingPackageLocation];
+                    }
+
+                    // Inherited feeds should only be used, if they are indeed reachable (as they may be environment specific).
+                    CheckSpecifiedFeeds(inheritedFeeds, out var reachableInheritedFeeds);
+                    reachableFeeds.UnionWith(reachableInheritedFeeds);
                 }
 
-                using (var nuget = new NugetExeWrapper(fileProvider, legacyPackageDirectory, logger))
+                using (var nuget = new NugetExeWrapper(fileProvider, legacyPackageDirectory, logger, IsDefaultFeedReachable))
                 {
                     var count = nuget.InstallPackages();
 
@@ -167,9 +200,10 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 logger.LogError($"Failed to restore NuGet packages with nuget.exe: {exc.Message}");
             }
 
-            var restoredProjects = RestoreSolutions(out var container);
+            // Restore project dependencies with `dotnet restore`.
+            var restoredProjects = RestoreSolutions(reachableFeeds, out var container);
             var projects = fileProvider.Projects.Except(restoredProjects);
-            RestoreProjects(projects, allFeeds, out var containers);
+            RestoreProjects(projects, reachableFeeds, out var containers);
 
             var dependencies = containers.Flatten(container);
 
@@ -192,6 +226,53 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             return assemblyLookupLocations;
         }
 
+        /// <summary>
+        /// Tests which of the feeds given by <paramref name="feedsToCheck"/> are reachable.
+        /// </summary>
+        /// <param name="feedsToCheck">The feeds to check.</param>
+        /// <param name="isFallback">Whether the feeds are fallback feeds or not.</param>
+        /// <param name="isTimeout">Whether a timeout occurred while checking the feeds.</param>
+        /// <returns>The list of feeds that could be reached.</returns>
+        private List<string> GetReachableNuGetFeeds(HashSet<string> feedsToCheck, bool isFallback, out bool isTimeout)
+        {
+            var fallbackStr = isFallback ? "fallback " : "";
+            logger.LogInfo($"Checking {fallbackStr}NuGet feed reachability on feeds: {string.Join(", ", feedsToCheck.OrderBy(f => f))}");
+
+            var (initialTimeout, tryCount) = GetFeedRequestSettings(isFallback);
+            var timeout = false;
+            var reachableFeeds = feedsToCheck
+                .Where(feed =>
+                {
+                    var reachable = IsFeedReachable(feed, initialTimeout, tryCount, out var feedTimeout);
+                    timeout |= feedTimeout;
+                    return reachable;
+                })
+                .ToList();
+
+            if (reachableFeeds.Count == 0)
+            {
+                logger.LogWarning($"No {fallbackStr}NuGet feeds are reachable.");
+            }
+            else
+            {
+                logger.LogInfo($"Reachable {fallbackStr}NuGet feeds: {string.Join(", ", reachableFeeds.OrderBy(f => f))}");
+            }
+
+            isTimeout = timeout;
+            return reachableFeeds;
+        }
+
+        private bool IsDefaultFeedReachable()
+        {
+            if (checkNugetFeedResponsiveness)
+            {
+                var (initialTimeout, tryCount) = GetFeedRequestSettings(isFallback: false);
+                return IsFeedReachable(PublicNugetOrgFeed, initialTimeout, tryCount, out var _);
+            }
+
+            return true;
+        }
+
         private List<string> GetReachableFallbackNugetFeeds(HashSet<string>? feedsFromNugetConfigs)
         {
             var fallbackFeeds = EnvironmentVariables.GetURLs(EnvironmentVariableNames.FallbackNugetFeeds).ToHashSet();
@@ -212,17 +293,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 }
             }
 
-            logger.LogInfo($"Checking fallback NuGet feed reachability on feeds: {string.Join(", ", fallbackFeeds.OrderBy(f => f))}");
-            var (initialTimeout, tryCount) = GetFeedRequestSettings(isFallback: true);
-            var reachableFallbackFeeds = fallbackFeeds.Where(feed => IsFeedReachable(feed, initialTimeout, tryCount, allowExceptions: false)).ToList();
-            if (reachableFallbackFeeds.Count == 0)
-            {
-                logger.LogWarning("No fallback NuGet feeds are reachable.");
-            }
-            else
-            {
-                logger.LogInfo($"Reachable fallback NuGet feeds: {string.Join(", ", reachableFallbackFeeds.OrderBy(f => f))}");
-            }
+            var reachableFallbackFeeds = GetReachableNuGetFeeds(fallbackFeeds, isFallback: true, out var _);
 
             compilationInfoContainer.CompilationInfos.Add(("Reachable fallback NuGet feed count", reachableFallbackFeeds.Count.ToString()));
 
@@ -237,10 +308,12 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         /// Populates dependencies with the relevant dependencies from the assets files generated by the restore.
         /// Returns a list of projects that are up to date with respect to restore.
         /// </summary>
-        private IEnumerable<string> RestoreSolutions(out DependencyContainer dependencies)
+        private IEnumerable<string> RestoreSolutions(HashSet<string> reachableFeeds, out DependencyContainer dependencies)
         {
             var successCount = 0;
             var nugetSourceFailures = 0;
+            var nugetMissingPackageFailures = 0;
+
             var assets = new Assets(logger);
 
             var isWindows = fileContent.UseWindowsForms || fileContent.UseWpf;
@@ -248,7 +321,8 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             var projects = fileProvider.Solutions.SelectMany(solution =>
                 {
                     logger.LogInfo($"Restoring solution {solution}...");
-                    var res = dotnet.Restore(new(solution, PackageDirectory.DirInfo.FullName, ForceDotnetRefAssemblyFetching: true, TargetWindows: isWindows));
+                    var nugetSources = MakeRestoreSourcesArgument(solution, reachableFeeds);
+                    var res = dotnet.Restore(new(solution, PackageDirectory.DirInfo.FullName, ForceDotnetRefAssemblyFetching: true, NugetSources: nugetSources, TargetWindows: isWindows));
                     if (res.Success)
                     {
                         successCount++;
@@ -257,51 +331,84 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                     {
                         nugetSourceFailures++;
                     }
+                    if (res.HasNugetPackageMissingError)
+                    {
+                        nugetMissingPackageFailures++;
+                    }
                     assets.AddDependenciesRange(res.AssetsFilePaths);
                     return res.RestoredProjects;
                 }).ToList();
             dependencies = assets.Dependencies;
             compilationInfoContainer.CompilationInfos.Add(("Successfully restored solution files", successCount.ToString()));
             compilationInfoContainer.CompilationInfos.Add(("Failed solution restore with package source error", nugetSourceFailures.ToString()));
+            compilationInfoContainer.CompilationInfos.Add(("Failed solution restore with missing package error", nugetMissingPackageFailures.ToString()));
             compilationInfoContainer.CompilationInfos.Add(("Restored projects through solution files", projects.Count.ToString()));
             return projects;
         }
 
+        private string FeedsToRestoreArgument(IEnumerable<string> feeds)
+        {
+            // If there are no feeds, we want to override any default feeds that `dotnet restore` would use by passing a dummy source argument.
+            if (!feeds.Any())
+            {
+                return $" -s \"{emptyPackageDirectory.DirInfo.FullName}\"";
+            }
+
+            // Add package sources. If any are present, they override all sources specified in
+            // the configuration file(s).
+            var feedArgs = new StringBuilder();
+            foreach (var feed in feeds)
+            {
+                feedArgs.Append($" -s \"{feed}\"");
+            }
+
+            return feedArgs.ToString();
+        }
+
+        /// <summary>
+        /// Constructs the list of NuGet sources to use for this restore.
+        /// (1) Use the feeds we get from `dotnet nuget list source`
+        /// (2) Use private registries, if they are configured
+        /// </summary>
+        /// <param name="path">Path to project/solution</param>
+        /// <param name="reachableFeeds">The set of reachable NuGet feeds.</param>
+        /// <returns>A string representing the NuGet sources argument for the restore command.</returns>
+        private string? MakeRestoreSourcesArgument(string path, HashSet<string> reachableFeeds)
+        {
+            // Do not construct an set of explicit NuGet sources to use for restore.
+            if (!checkNugetFeedResponsiveness && !hasPrivateRegistryFeeds)
+            {
+                return null;
+            }
+
+            // Find the path specific feeds.
+            var folder = GetDirectoryName(path);
+            var feedsToConsider = folder is not null ? GetFeeds(() => dotnet.GetNugetFeedsFromFolder(folder)).ToHashSet() : [];
+
+            if (hasPrivateRegistryFeeds)
+            {
+                feedsToConsider.UnionWith(privateRegistryFeeds);
+            }
+
+            var feedsToUse = checkNugetFeedResponsiveness
+                ? feedsToConsider.Where(reachableFeeds.Contains)
+                : feedsToConsider;
+
+            return FeedsToRestoreArgument(feedsToUse);
+        }
+
         /// <summary>
         /// Executes `dotnet restore` on all projects in projects.
         /// This is done in parallel for performance reasons.
         /// Populates dependencies with the relative paths to the assets files generated by the restore.
         /// </summary>
         /// <param name="projects">A list of paths to project files.</param>
-        private void RestoreProjects(IEnumerable<string> projects, HashSet<string>? configuredSources, out ConcurrentBag<DependencyContainer> dependencies)
+        /// <param name="reachableFeeds">The set of reachable NuGet feeds.</param>
+        private void RestoreProjects(IEnumerable<string> projects, HashSet<string> reachableFeeds, out ConcurrentBag<DependencyContainer> dependencies)
         {
-            // Conservatively, we only set this to a non-null value if a Dependabot proxy is enabled.
-            // This ensures that we continue to get the old behaviour where feeds are taken from
-            // `nuget.config` files instead of the command-line arguments.
-            string? extraArgs = null;
-
-            if (this.dependabotProxy is not null)
-            {
-                // If the Dependabot proxy is configured, then our main goal is to make `dotnet` aware
-                // of the private registry feeds. However, since providing them as command-line arguments
-                // to `dotnet` ignores other feeds that may be configured, we also need to add the feeds
-                // we have discovered from analysing `nuget.config` files.
-                var sources = configuredSources ?? new();
-                this.dependabotProxy.RegistryURLs.ForEach(url => sources.Add(url));
-
-                // Add package sources. If any are present, they override all sources specified in
-                // the configuration file(s).
-                var feedArgs = new StringBuilder();
-                foreach (string source in sources)
-                {
-                    feedArgs.Append($" -s {source}");
-                }
-
-                extraArgs = feedArgs.ToString();
-            }
-
             var successCount = 0;
             var nugetSourceFailures = 0;
+            var nugetMissingPackageFailures = 0;
             ConcurrentBag<DependencyContainer> collectedDependencies = [];
 
             var isWindows = fileContent.UseWindowsForms || fileContent.UseWpf;
@@ -314,7 +421,8 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 foreach (var project in projectGroup)
                 {
                     logger.LogInfo($"Restoring project {project}...");
-                    var res = dotnet.Restore(new(project, PackageDirectory.DirInfo.FullName, ForceDotnetRefAssemblyFetching: true, extraArgs, TargetWindows: isWindows));
+                    var nugetSources = MakeRestoreSourcesArgument(project, reachableFeeds);
+                    var res = dotnet.Restore(new(project, PackageDirectory.DirInfo.FullName, ForceDotnetRefAssemblyFetching: true, NugetSources: nugetSources, TargetWindows: isWindows));
                     assets.AddDependenciesRange(res.AssetsFilePaths);
                     lock (sync)
                     {
@@ -326,6 +434,10 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                         {
                             nugetSourceFailures++;
                         }
+                        if (res.HasNugetPackageMissingError)
+                        {
+                            nugetMissingPackageFailures++;
+                        }
                     }
                 }
                 collectedDependencies.Add(assets.Dependencies);
@@ -333,6 +445,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             dependencies = collectedDependencies;
             compilationInfoContainer.CompilationInfos.Add(("Successfully restored project files", successCount.ToString()));
             compilationInfoContainer.CompilationInfos.Add(("Failed project restore with package source error", nugetSourceFailures.ToString()));
+            compilationInfoContainer.CompilationInfos.Add(("Failed project restore with missing package error", nugetMissingPackageFailures.ToString()));
         }
 
         private AssemblyLookupLocation? DownloadMissingPackagesFromSpecificFeeds(IEnumerable<string> usedPackageNames, HashSet<string>? feedsFromNugetConfigs)
@@ -623,28 +736,22 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             }
         }
 
-        private static async Task ExecuteGetRequest(string address, HttpClient httpClient, CancellationToken cancellationToken)
+        private static async Task<HttpResponseMessage> ExecuteGetRequest(string address, HttpClient httpClient, CancellationToken cancellationToken)
         {
-            using var stream = await httpClient.GetStreamAsync(address, cancellationToken);
-            var buffer = new byte[1024];
-            int bytesRead;
-            while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)
-            {
-                // do nothing
-            }
+            return await httpClient.GetAsync(address, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
         }
 
-        private bool IsFeedReachable(string feed, int timeoutMilliSeconds, int tryCount, bool allowExceptions = true)
+        private bool IsFeedReachable(string feed, int timeoutMilliSeconds, int tryCount, out bool isTimeout)
         {
             logger.LogInfo($"Checking if NuGet feed '{feed}' is reachable...");
 
             // Configure the HttpClient to be aware of the Dependabot Proxy, if used.
             HttpClientHandler httpClientHandler = new();
-            if (this.dependabotProxy != null)
+            if (dependabotProxy != null)
             {
-                httpClientHandler.Proxy = new WebProxy(this.dependabotProxy.Address);
+                httpClientHandler.Proxy = new WebProxy(dependabotProxy.Address);
 
-                if (this.dependabotProxy.Certificate != null)
+                if (dependabotProxy.Certificate != null)
                 {
                     httpClientHandler.ServerCertificateCustomValidationCallback = (message, cert, chain, _) =>
                     {
@@ -659,7 +766,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                             return false;
                         }
                         chain.ChainPolicy.TrustMode = X509ChainTrustMode.CustomRootTrust;
-                        chain.ChainPolicy.CustomTrustStore.Add(this.dependabotProxy.Certificate);
+                        chain.ChainPolicy.CustomTrustStore.Add(dependabotProxy.Certificate);
                         return chain.Build(cert);
                     };
                 }
@@ -667,13 +774,17 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
 
             using HttpClient client = new(httpClientHandler);
 
+            isTimeout = false;
+
             for (var i = 0; i < tryCount; i++)
             {
                 using var cts = new CancellationTokenSource();
                 cts.CancelAfter(timeoutMilliSeconds);
                 try
                 {
-                    ExecuteGetRequest(feed, client, cts.Token).GetAwaiter().GetResult();
+                    logger.LogInfo($"Attempt {i + 1}/{tryCount} to reach NuGet feed '{feed}'.");
+                    using var response = ExecuteGetRequest(feed, client, cts.Token).GetAwaiter().GetResult();
+                    response.EnsureSuccessStatusCode();
                     logger.LogInfo($"Querying NuGet feed '{feed}' succeeded.");
                     return true;
                 }
@@ -688,14 +799,13 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                         continue;
                     }
 
-                    // We're only interested in timeouts.
-                    var start = allowExceptions ? "Considering" : "Not considering";
-                    logger.LogInfo($"Querying NuGet feed '{feed}' failed in a timely manner. {start} the feed for use. The reason for the failure: {exc.Message}");
-                    return allowExceptions;
+                    logger.LogInfo($"Querying NuGet feed '{feed}' failed. The reason for the failure: {exc.Message}");
+                    return false;
                 }
             }
 
             logger.LogWarning($"Didn't receive answer from NuGet feed '{feed}'. Tried it {tryCount} times.");
+            isTimeout = true;
             return false;
         }
 
@@ -719,42 +829,10 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
         }
 
         /// <summary>
-        /// Checks that we can connect to all NuGet feeds that are explicitly configured in configuration files
-        /// as well as any private package registry feeds that are configured.
+        /// Retrieves a list of excluded NuGet feeds from the corresponding environment variable.
         /// </summary>
-        /// <param name="explicitFeeds">Outputs the set of explicit feeds.</param>
-        /// <param name="allFeeds">Outputs the set of all feeds (explicit and inherited).</param>
-        /// <returns>True if all feeds are reachable or false otherwise.</returns>
-        private bool CheckFeeds(out HashSet<string> explicitFeeds, out HashSet<string> allFeeds)
+        private HashSet<string> GetExcludedFeeds()
         {
-            (explicitFeeds, allFeeds) = GetAllFeeds();
-            HashSet<string> feedsToCheck = explicitFeeds;
-
-            // If private package registries are configured for C#, then check those
-            // in addition to the ones that are configured in `nuget.config` files.
-            this.dependabotProxy?.RegistryURLs.ForEach(url => feedsToCheck.Add(url));
-
-            var allFeedsReachable = this.CheckSpecifiedFeeds(feedsToCheck);
-
-            var inheritedFeeds = allFeeds.Except(explicitFeeds).ToHashSet();
-            if (inheritedFeeds.Count > 0)
-            {
-                logger.LogInfo($"Inherited NuGet feeds (not checked for reachability): {string.Join(", ", inheritedFeeds.OrderBy(f => f))}");
-                compilationInfoContainer.CompilationInfos.Add(("Inherited NuGet feed count", inheritedFeeds.Count.ToString()));
-            }
-
-            return allFeedsReachable;
-        }
-
-        /// <summary>
-        /// Checks that we can connect to the specified NuGet feeds.
-        /// </summary>
-        /// <param name="feeds">The set of package feeds to check.</param>
-        /// <returns>True if all feeds are reachable or false otherwise.</returns>
-        private bool CheckSpecifiedFeeds(HashSet<string> feeds)
-        {
-            logger.LogInfo("Checking that NuGet feeds are reachable...");
-
             var excludedFeeds = EnvironmentVariables.GetURLs(EnvironmentVariableNames.ExcludedNugetFeedsFromResponsivenessCheck)
                 .ToHashSet();
 
@@ -763,9 +841,49 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 logger.LogInfo($"Excluded NuGet feeds from responsiveness check: {string.Join(", ", excludedFeeds.OrderBy(f => f))}");
             }
 
-            var (initialTimeout, tryCount) = GetFeedRequestSettings(isFallback: false);
+            return excludedFeeds;
+        }
 
-            var allFeedsReachable = feeds.All(feed => excludedFeeds.Contains(feed) || IsFeedReachable(feed, initialTimeout, tryCount));
+        /// <summary>
+        /// Checks that we can connect to the specified NuGet feeds.
+        /// </summary>
+        /// <param name="feeds">The set of package feeds to check.</param>
+        /// <param name="reachableFeeds">The list of feeds that were reachable.</param>
+        /// <returns>
+        /// True if there is a timeout when trying to reach the feeds (excluding any feeds that are configured
+        /// to be excluded from the check) or false otherwise.
+        /// </returns>
+        private bool CheckSpecifiedFeeds(HashSet<string> feeds, out HashSet<string> reachableFeeds)
+        {
+            // Exclude any feeds from the feed check that are configured by the corresponding environment variable.
+            // These feeds are always assumed to be reachable.
+            var excludedFeeds = GetExcludedFeeds();
+
+            HashSet<string> feedsToCheck = feeds.Where(feed =>
+            {
+                if (excludedFeeds.Contains(feed))
+                {
+                    logger.LogInfo($"Not checking reachability of NuGet feed '{feed}' as it is in the list of excluded feeds.");
+                    return false;
+                }
+                return true;
+            }).ToHashSet();
+
+            reachableFeeds = GetReachableNuGetFeeds(feedsToCheck, isFallback: false, out var isTimeout).ToHashSet();
+
+            // Always consider feeds excluded for the reachability check as reachable.
+            reachableFeeds.UnionWith(feeds.Where(feed => excludedFeeds.Contains(feed)));
+
+            return isTimeout;
+        }
+
+        /// <summary>
+        /// If <paramref name="allFeedsReachable"/> is `false`, logs this and emits a diagnostic.
+        /// Adds a `CompilationInfos` entry either way.
+        /// </summary>
+        /// <param name="allFeedsReachable">Whether all feeds were reachable or not.</param>
+        private void EmitUnreachableFeedsDiagnostics(bool allFeedsReachable)
+        {
             if (!allFeedsReachable)
             {
                 logger.LogWarning("Found unreachable NuGet feed in C# analysis with build-mode 'none'. This may cause missing dependencies in the analysis.");
@@ -779,8 +897,6 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 ));
             }
             compilationInfoContainer.CompilationInfos.Add(("All NuGet feeds reachable", allFeedsReachable ? "1" : "0"));
-
-            return allFeedsReachable;
         }
 
         private IEnumerable<string> GetFeeds(Func<IList<string>> getNugetFeeds)
@@ -811,6 +927,19 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             }
         }
 
+        private string? GetDirectoryName(string path)
+        {
+            try
+            {
+                return new FileInfo(path).Directory?.FullName;
+            }
+            catch (Exception exc)
+            {
+                logger.LogWarning($"Failed to get directory of '{path}': {exc}");
+            }
+            return null;
+        }
+
         private (HashSet<string> explicitFeeds, HashSet<string> allFeeds) GetAllFeeds()
         {
             var nugetConfigs = fileProvider.NugetConfigs;
@@ -828,11 +957,11 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
 
                 if (invalidNugetConfigs.Count() > 0)
                 {
-                    this.logger.LogWarning(string.Format(
+                    logger.LogWarning(string.Format(
                         "Found incorrectly named NuGet configuration files: {0}",
                         string.Join(", ", invalidNugetConfigs)
                     ));
-                    this.diagnosticsWriter.AddEntry(new DiagnosticMessage(
+                    diagnosticsWriter.AddEntry(new DiagnosticMessage(
                         Language.CSharp,
                         "buildless/case-sensitive-nuget-config",
                         "Found NuGet configuration files which are not correctly named",
@@ -864,41 +993,33 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
                 logger.LogDebug("No NuGet feeds found in nuget.config files.");
             }
 
-            // todo: this could be improved.
-            HashSet<string>? allFeeds = null;
+            // If private package registries are configured for C#, then consider those
+            // in addition to the ones that are configured in `nuget.config` files.
+            if (hasPrivateRegistryFeeds)
+            {
+                logger.LogInfo($"Found {privateRegistryFeeds.Count} private registry feeds configured for C#: {string.Join(", ", privateRegistryFeeds.OrderBy(f => f))}");
+                explicitFeeds.UnionWith(privateRegistryFeeds);
+            }
+
+            HashSet<string> allFeeds = [];
+
+            // Add all explicitFeeds to the set of all feeds.
+            allFeeds.UnionWith(explicitFeeds);
+
+            // Obtain the list of feeds from the root source directory.
+            // If a NuGet file is present it will be respected, otherwise we will just get the machine/environment specific feeds.
+            var nugetFeedsFromRoot = GetFeeds(() => dotnet.GetNugetFeedsFromFolder(fileProvider.SourceDir.FullName));
+            allFeeds.UnionWith(nugetFeedsFromRoot);
 
             if (nugetConfigs.Count > 0)
             {
-                // We don't have to get the feeds from each of the folders from below, it would be enought to check the folders that recursively contain the others.
-                allFeeds = nugetConfigs
-                    .Select(config =>
-                    {
-                        try
-                        {
-                            return new FileInfo(config).Directory?.FullName;
-                        }
-                        catch (Exception exc)
-                        {
-                            logger.LogWarning($"Failed to get directory of '{config}': {exc}");
-                        }
-                        return null;
-                    })
+                var nugetConfigFeeds = nugetConfigs
+                    .Select(GetDirectoryName)
                     .Where(folder => folder != null)
                     .SelectMany(folder => GetFeeds(() => dotnet.GetNugetFeedsFromFolder(folder!)))
                     .ToHashSet();
 
-                // If we have discovered any explicit feeds, then we also expect these to be in the set of all feeds.
-                // Normally, it is a safe assumption to make that `GetNugetFeedsFromFolder` will include the feeds configured
-                // in a NuGet configuration file in the given directory. There is one exception: on a system with case-sensitive
-                // file systems, we may discover a configuration file such as `Nuget.Config` which is not recognised by `dotnet nuget`.
-                // In that case, our call to `GetNugetFeeds` will retrieve the feeds from that file (because it is accepted when
-                // provided explicitly as `--configfile` argument), but the call to `GetNugetFeedsFromFolder` will not.
-                allFeeds.UnionWith(explicitFeeds);
-            }
-            else
-            {
-                // If we haven't found any `nuget.config` files, then obtain a list of feeds from the root source directory.
-                allFeeds = GetFeeds(() => dotnet.GetNugetFeedsFromFolder(this.fileProvider.SourceDir.FullName)).ToHashSet();
+                allFeeds.UnionWith(nugetConfigFeeds);
             }
 
             logger.LogInfo($"Found {allFeeds.Count} NuGet feeds (with inherited ones) in nuget.config files: {string.Join(", ", allFeeds.OrderBy(f => f))}");
@@ -923,6 +1044,7 @@ namespace Semmle.Extraction.CSharp.DependencyFetching
             PackageDirectory?.Dispose();
             legacyPackageDirectory?.Dispose();
             missingPackageDirectory?.Dispose();
+            emptyPackageDirectory?.Dispose();
         }
 
         /// <summary>

csharp/extractor/Semmle.Extraction.CSharp.Util/SymbolExtensions.cs

@@ -1,3 +1,5 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Text.RegularExpressions;
 using Microsoft.CodeAnalysis;
 
@@ -18,114 +20,68 @@ namespace Semmle.Extraction.CSharp.Util
             return symbol.CanBeReferencedByName ? name : name.Substring(symbol.Name.LastIndexOf('.') + 1);
         }
 
+        private static readonly ReadOnlyDictionary<string, string> methodToOperator = new(new Dictionary<string, string>
+        {
+            { "op_LogicalNot", "!" },
+            { "op_BitwiseAnd", "&" },
+            { "op_Equality", "==" },
+            { "op_Inequality", "!=" },
+            { "op_UnaryPlus", "+" },
+            { "op_Addition", "+" },
+            { "op_UnaryNegation", "-" },
+            { "op_Subtraction", "-" },
+            { "op_Multiply", "*" },
+            { "op_Multiplication", "*" },
+            { "op_Division", "/" },
+            { "op_Modulus", "%" },
+            { "op_GreaterThan", ">" },
+            { "op_GreaterThanOrEqual", ">=" },
+            { "op_LessThan", "<" },
+            { "op_LessThanOrEqual", "<=" },
+            { "op_Decrement", "--" },
+            { "op_Increment", "++" },
+            { "op_Implicit", "implicit conversion" },
+            { "op_Explicit", "explicit conversion" },
+            { "op_OnesComplement", "~" },
+            { "op_RightShift", ">>" },
+            { "op_UnsignedRightShift", ">>>" },
+            { "op_LeftShift", "<<" },
+            { "op_BitwiseOr", "|" },
+            { "op_ExclusiveOr", "^" },
+            { "op_True", "true" },
+            { "op_False", "false" }
+        });
+
         /// <summary>
         /// Convert an operator method name in to a symbolic name.
         /// A return value indicates whether the conversion succeeded.
         /// </summary>
         public static bool TryGetOperatorSymbol(this ISymbol symbol, out string operatorName)
         {
-            static bool TryGetOperatorSymbolFromName(string methodName, out string operatorName)
+            var methodName = symbol.GetName(useMetadataName: false);
+
+            // Most common use-case.
+            if (methodToOperator.TryGetValue(methodName, out var opName))
             {
-                var success = true;
-                switch (methodName)
-                {
-                    case "op_LogicalNot":
-                        operatorName = "!";
-                        break;
-                    case "op_BitwiseAnd":
-                        operatorName = "&";
-                        break;
-                    case "op_Equality":
-                        operatorName = "==";
-                        break;
-                    case "op_Inequality":
-                        operatorName = "!=";
-                        break;
-                    case "op_UnaryPlus":
-                    case "op_Addition":
-                        operatorName = "+";
-                        break;
-                    case "op_UnaryNegation":
-                    case "op_Subtraction":
-                        operatorName = "-";
-                        break;
-                    case "op_Multiply":
-                        operatorName = "*";
-                        break;
-                    case "op_Division":
-                        operatorName = "/";
-                        break;
-                    case "op_Modulus":
-                        operatorName = "%";
-                        break;
-                    case "op_GreaterThan":
-                        operatorName = ">";
-                        break;
-                    case "op_GreaterThanOrEqual":
-                        operatorName = ">=";
-                        break;
-                    case "op_LessThan":
-                        operatorName = "<";
-                        break;
-                    case "op_LessThanOrEqual":
-                        operatorName = "<=";
-                        break;
-                    case "op_Decrement":
-                        operatorName = "--";
-                        break;
-                    case "op_Increment":
-                        operatorName = "++";
-                        break;
-                    case "op_Implicit":
-                        operatorName = "implicit conversion";
-                        break;
-                    case "op_Explicit":
-                        operatorName = "explicit conversion";
-                        break;
-                    case "op_OnesComplement":
-                        operatorName = "~";
-                        break;
-                    case "op_RightShift":
-                        operatorName = ">>";
-                        break;
-                    case "op_UnsignedRightShift":
-                        operatorName = ">>>";
-                        break;
-                    case "op_LeftShift":
-                        operatorName = "<<";
-                        break;
-                    case "op_BitwiseOr":
-                        operatorName = "|";
-                        break;
-                    case "op_ExclusiveOr":
-                        operatorName = "^";
-                        break;
-                    case "op_True":
-                        operatorName = "true";
-                        break;
-                    case "op_False":
-                        operatorName = "false";
-                        break;
-                    default:
-                        var match = CheckedRegex().Match(methodName);
-                        if (match.Success)
-                        {
-                            TryGetOperatorSymbolFromName($"op_{match.Groups[1]}", out var uncheckedName);
-                            operatorName = $"checked {uncheckedName}";
-                            break;
-                        }
-                        operatorName = methodName;
-                        success = false;
-                        break;
-                }
-                return success;
+                operatorName = opName;
+                return true;
             }
 
-            var methodName = symbol.GetName(useMetadataName: false);
-            return TryGetOperatorSymbolFromName(methodName, out operatorName);
+            // Attempt to parse using a regexp.
+            var match = OperatorRegex().Match(methodName);
+            if (match.Success && methodToOperator.TryGetValue($"op_{match.Groups[2]}", out var rawOperatorName))
+            {
+                var prefix = match.Groups[1].Success ? "checked " : "";
+                var postfix = match.Groups[3].Success ? "=" : "";
+                operatorName = $"{prefix}{rawOperatorName}{postfix}";
+                return true;
+            }
+
+            operatorName = methodName;
+            return false;
         }
 
-        [GeneratedRegex("^op_Checked(.*)$")]
-        private static partial Regex CheckedRegex();
+        [GeneratedRegex("^op_(Checked)?(.*?)(Assignment)?$")]
+        private static partial Regex OperatorRegex();
     }
 }

csharp/extractor/Semmle.Extraction.CSharp/Entities/Expression.cs

@@ -228,6 +228,41 @@ namespace Semmle.Extraction.CSharp.Entities
             return Literal.CreateGenerated(cx, parent, childIndex, type, defaultValue, location);
         }
 
+        /// <summary>
+        /// Given an expression syntax node, attempt to resolve the target method symbol for it.
+        /// The operation takes extension methods into account.
+        /// </summary>
+        /// <param name="node">The expression syntax node.</param>
+        /// <returns>Returns the target method symbol, or null if it cannot be resolved.</returns>
+        protected IMethodSymbol? GetTargetSymbol(ExpressionSyntax node)
+        {
+            var si = Context.GetSymbolInfo(node);
+            if (si.Symbol is ISymbol symbol)
+            {
+                var method = symbol as IMethodSymbol;
+                // Case for compiler-generated extension methods.
+                return method?.TryGetExtensionMethod() ?? method;
+            }
+
+            if (si.CandidateReason == CandidateReason.OverloadResolutionFailure && node is InvocationExpressionSyntax syntax)
+            {
+                // This seems to be a bug in Roslyn
+                // For some reason, typeof(X).InvokeMember(...) fails to resolve the correct
+                // InvokeMember() method, even though the number of parameters clearly identifies the correct method
+
+                var candidates = si.CandidateSymbols
+                    .OfType<IMethodSymbol>()
+                    .Where(method => method.Parameters.Length >= syntax.ArgumentList.Arguments.Count)
+                    .Where(method => method.Parameters.Count(p => !p.HasExplicitDefaultValue) <= syntax.ArgumentList.Arguments.Count);
+
+                return Context.ExtractionContext.IsStandalone ?
+                    candidates.FirstOrDefault() :
+                    candidates.SingleOrDefault();
+            }
+
+            return si.Symbol as IMethodSymbol;
+        }
+
         /// <summary>
         /// Adapt the operator kind depending on whether it's a dynamic call or a user-operator call.
         /// </summary>
@@ -244,10 +279,10 @@ namespace Semmle.Extraction.CSharp.Entities
         /// name if available.
         /// </summary>
         /// <param name="node">The expression.</param>
-        public void OperatorCall(TextWriter trapFile, ExpressionSyntax node)
+        public void AddOperatorCall(TextWriter trapFile, ExpressionSyntax node)
         {
-            var @operator = Context.GetSymbolInfo(node);
-            if (@operator.Symbol is IMethodSymbol method)
+            var @operator = GetTargetSymbol(node);
+            if (@operator is IMethodSymbol method)
             {
                 var callType = GetCallType(Context, node);
                 if (callType == CallType.Dynamic)

csharp/extractor/Semmle.Extraction.CSharp/Entities/Expressions/Assignment.cs

@@ -24,10 +24,9 @@ namespace Semmle.Extraction.CSharp.Entities.Expressions
         {
             Create(Context, Syntax.Left, this, 0);
             Create(Context, Syntax.Right, this, 1);
-
             if (Kind != ExprKind.SIMPLE_ASSIGN && Kind != ExprKind.ASSIGN_COALESCE)
             {
-                OperatorCall(trapFile, Syntax);
+                AddOperatorCall(trapFile, Syntax);
             }
         }
 

csharp/extractor/Semmle.Extraction.CSharp/Entities/Expressions/Binary.cs

@@ -40,7 +40,7 @@ namespace Semmle.Extraction.CSharp.Entities.Expressions
 
         protected override void PopulateExpression(TextWriter trapFile)
         {
-            OperatorCall(trapFile, Syntax);
+            AddOperatorCall(trapFile, Syntax);
             CreateDeferred(Context, Syntax.Left, 0);
             CreateDeferred(Context, Syntax.Right, 1);
         }

csharp/extractor/Semmle.Extraction.CSharp/Entities/Expressions/Cast.cs

@@ -25,7 +25,7 @@ namespace Semmle.Extraction.CSharp.Entities.Expressions
             else
             {
                 // Type conversion
-                OperatorCall(trapFile, Syntax);
+                AddOperatorCall(trapFile, Syntax);
                 TypeMention.Create(Context, Syntax.Type, this, Type);
             }
         }

csharp/extractor/Semmle.Extraction.CSharp/Entities/Expressions/Invocation.cs

@@ -44,7 +44,7 @@ namespace Semmle.Extraction.CSharp.Entities.Expressions
 
             var child = -1;
             string? memberName = null;
-            var target = TargetSymbol;
+            var target = GetTargetSymbol(Syntax);
             switch (Syntax.Expression)
             {
                 case MemberAccessExpressionSyntax memberAccess when IsValidMemberAccessKind():
@@ -129,39 +129,6 @@ namespace Semmle.Extraction.CSharp.Entities.Expressions
                 method.TryGetExtensionMethod()?.MethodKind == MethodKind.UserDefinedOperator;
         }
 
-        public IMethodSymbol? TargetSymbol
-        {
-            get
-            {
-                var si = SymbolInfo;
-
-                if (si.Symbol is ISymbol symbol)
-                {
-                    var method = symbol as IMethodSymbol;
-                    // Case for compiler-generated extension methods.
-                    return method?.TryGetExtensionMethod() ?? method;
-                }
-
-                if (si.CandidateReason == CandidateReason.OverloadResolutionFailure)
-                {
-                    // This seems to be a bug in Roslyn
-                    // For some reason, typeof(X).InvokeMember(...) fails to resolve the correct
-                    // InvokeMember() method, even though the number of parameters clearly identifies the correct method
-
-                    var candidates = si.CandidateSymbols
-                        .OfType<IMethodSymbol>()
-                        .Where(method => method.Parameters.Length >= Syntax.ArgumentList.Arguments.Count)
-                        .Where(method => method.Parameters.Count(p => !p.HasExplicitDefaultValue) <= Syntax.ArgumentList.Arguments.Count);
-
-                    return Context.ExtractionContext.IsStandalone ?
-                        candidates.FirstOrDefault() :
-                        candidates.SingleOrDefault();
-                }
-
-                return si.Symbol as IMethodSymbol;
-            }
-        }
-
         private static bool IsDelegateLikeCall(ExpressionNodeInfo info)
         {
             return IsDelegateLikeCall(info, symbol => IsFunctionPointer(symbol) || IsDelegateInvoke(symbol));