Commit Graph

7341 Commits

Author SHA1 Message Date
Anders Fugmann
f202ddc5aa C++: Add changenote 2021-09-13 16:31:06 +02:00
Geoffrey White
67c6b35845 C++: We get many more real world results using taint tracking. 2021-09-13 15:03:28 +01:00
Geoffrey White
0e8064dbf9 C++: Add a test demonstrating taint. 2021-09-13 15:00:31 +01:00
Anders Fugmann
8e9ac18026 C++: Deprecate RangeSSA::isGuardPhi/3 2021-09-13 15:35:05 +02:00
Geoffrey White
902fa7d44a C++: Subsection header. 2021-09-13 14:10:17 +01:00
Geoffrey White
acd1acd869 C++: Give it a section header. 2021-09-13 14:08:18 +01:00
Geoffrey White
befd1a7ccc C++: Rename security tests readme. 2021-09-13 14:06:22 +01:00
Geoffrey White
ee7ccd7936 C++: Upgrade to path problem. 2021-09-13 13:52:12 +01:00
Anders Fugmann
9a35a699cb C++: Update tests 2021-09-13 12:10:58 +02:00
Geoffrey White
f58177f292 C++: Full dataflow version. 2021-09-13 10:53:09 +01:00
Anders Fugmann
342b2df93f C++: zero or one byte sized arrays in unions are considered as having the length of the union its a member of 2021-09-13 11:25:04 +02:00
Anders Fugmann
3172d5727a C++: Relax constraints on Buffer::memberMayBeVarSize 2021-09-13 11:15:33 +02:00
Anders Fugmann
4ab9b81a9a C++: Add tests exposing some FP's for OverflowStatic query 2021-09-13 11:09:56 +02:00
Geoffrey White
e696eaaa2f C++: Fix false positives involving STDIN_FILENO. 2021-09-13 09:50:19 +01:00
Geoffrey White
3ba9e80635 C++: Support various functions / variants. 2021-09-13 09:50:03 +01:00
Geoffrey White
1707d67adb C++: Support 'send' as well. 2021-09-13 09:49:40 +01:00
Geoffrey White
29ad3bf7f8 C++: Test dataflow and other slightly more complex cases. 2021-09-13 09:49:25 +01:00
Tom Hvitved
649c2ce188 Merge pull request #6586 from hvitved/dataflow/stage2-precise-call-ctx-take2
Data flow: Add precise call contexts to stage 2
2021-09-10 11:34:35 +02:00
Anders Fugmann
2c93bce9ad C++: Refactor code to use predicate isGuardPhi/4 2021-09-10 10:53:48 +02:00
Anders Peter Fugmann
1bbadb57a2 Merge pull request #6568 from andersfugmann/andersfugmann/improve_upper_bound
C++: Improve predicate upperBound in SimpleRangeAnalysis
2021-09-10 09:49:48 +02:00
Tom Hvitved
296d10fe2a Data flow: Adjust callMayFlowThroughFwd pragmas 2021-09-10 09:21:24 +02:00
Anders Fugmann
270dbd2bf7 C++: Revert peer review suggestion.
The suggested change has a severe impact on row counts, as cpp does not cache
the results for `bbDominates`. Since the `getGuardedUpperBound` predicate the
cost of runtime complexity is considered higher than the benefit of this change.
2021-09-09 13:26:42 +02:00
Anders Fugmann
6c44b0e6e7 C++: Add test case where a guarded block has two predecessors which are both in the dominance domain of the guard 2021-09-09 13:18:49 +02:00
Mathias Vorreiter Pedersen
44f477d552 C++: Add uninterpreted query for obtaining frontend and extraction time. 2021-09-08 14:32:50 +01:00
Anders Schack-Mulligen
1af39f0776 Dataflow: Sync. 2021-09-08 13:02:07 +02:00
Anders Fugmann
f91bd91d02 C++: Apply suggested change from code review 2021-09-08 12:38:53 +02:00
Anders Fugmann
e93dc0b4c4 C++: Fix comment in getGuardedUpperBound 2021-09-08 11:06:58 +02:00
Dave Bartolomeo
6837233128 Treat CallSideEffect and InitializeDynamicAllocation the same as other side effects during IR generation
This commit moves the IR generation for the `CallSideEffect` and `InitializeDynamicAllocation` side effect instruction into their own subclasses of `TranslatedSideEffect`. Previously, they were embeddded in `TranslatedCall` and `TranslatedAllocationSideEffects`. There are no diffs in the generated IR. This just makes the implementation of all side effect generation be consistent.
2021-09-07 14:22:23 -04:00
Anders Schack-Mulligen
f30dad7705 Dataflow: Update test expected outputs. 2021-09-07 13:02:20 +02:00
Anders Schack-Mulligen
7ec1fa2ebe Dataflow: Sync. 2021-09-07 12:51:42 +02:00
Anders Schack-Mulligen
3c3d71d4a0 Dataflow: Sync 2021-09-07 12:51:42 +02:00
Mathias Vorreiter Pedersen
5cecea42e4 Merge pull request #6603 from geoffw0/impropnulltests
C++: Add test cases for cpp/improper-null-termination.
2021-09-07 09:55:36 +01:00
Mathias Vorreiter Pedersen
b7206c1218 Merge pull request #6581 from geoffw0/uncontrolledarith2
CPP: Improvements for cpp/uncontrolled-arithmetic
2021-09-07 09:48:59 +01:00
Anders Fugmann
ebdda885f9 C++: Update test annotation for OverflowStatic 2021-09-07 10:38:16 +02:00
Geoffrey White
cd5a5347fc C++: Add basic test. 2021-09-06 18:11:34 +01:00
Geoffrey White
246302453f C++: Add CleartextTransmission query. 2021-09-06 18:11:19 +01:00
Anders Fugmann
9af4d560dd Merge branch 'main' into andersfugmann/improve_upper_bound 2021-09-06 14:26:58 +02:00
Anders Fugmann
ddbaf585ec Merge branch 'main' into andersfugmann/improve_upper_bound 2021-09-06 10:32:44 +02:00
Anders Fugmann
e4d22ea628 C++: Add comment on why getGuardedUpperBound must have exactly one predecessor 2021-09-06 10:31:32 +02:00
ihsinme
8b0d5a2e7b Update cpp/ql/src/experimental/Security/CWE/CWE-675/DoubleRelease.qhelp
Co-authored-by: Geoffrey White <40627776+geoffw0@users.noreply.github.com>
2021-09-05 22:46:37 +03:00
Dave Bartolomeo
d1e6813812 Make side effects for constructor calls use same mechanism as other arguments
This commit is yet another step to fixing the order of IR side effect instructions. Instead of having a special `StructorCallSideEffects` class for the call itself, I've introduced a `TranslatedStructorCallQualifierSideEffect` class that shares a bunch of common code with `TranslatedArgumentExprSideEffect`, but handles the case where there's no `Expr` for the qualifier of the constructor call. Because this class uses the same ordering as regular argument side effects, these side effects now appear in the correct order, reads before writes.

The test expectations have changed to reflect the new, correct order.
2021-09-03 16:58:32 -04:00
Andrew Eisenberg
6a47fcaf1f Packaging: Normalize all qlpack.yml files for all languages
This commit ensures consistency among all of our qlpacks. Here are the
changes:

1. Ensure only modern references are used (codeql-{lang} is converted to
   codeql/{lang}-all or codeql/{lang}-queries where appropriate).
2. Use consistent version numbers. All languages are at 0.0.2 except
   javascript, which is 0.0.3.
3. Convert all `libraryPathDependencies` to `dependencies` with version
   constraints
4. Dependencies from query packs to other packs are always `"*"` since
   these dependencies are always from source and we should get the
   latest.
5. Dependencies from codeql/{lang}-lib to codeql/{lang}-upgrades must
   be strict since there is a tight connection between the libary
   and its relevant upgrades.
2021-09-03 11:53:28 -07:00
Dave Bartolomeo
ba72a1cde7 Make TranslatedSideEffect abstract
This is step two of fixing the ordering of call side effects. This commit refactors the existing `TranslatedSideEffect` class into an abstract `TranslatedSideEffect` class, which contains functionality common to all kinds of side effect, and a concrete `TranslatedArgumentSideEffect` class, which is the implementation of argument side effects. A future commit will add additional concrete classes for conservative call side effects and allocation side effects.

This change has zero diffs to the generated IR.
2021-09-03 11:31:14 -04:00
Geoffrey White
4e60fd5fc7 C++:Add the ImproperNullTerminationTainted.ql query to the test. 2021-09-03 15:53:24 +01:00
Geoffrey White
ccf1a44a2b C++: Extend tests for cpp/improper-null-termination. 2021-09-03 15:48:36 +01:00
Dave Bartolomeo
47e16b0480 Move logic for determining CallSideEffect opcode out of TranslatedCall.
This is the first step to fixing the order of side effects on call instructions. The goal is to move all side effects (argument side effects, allocation side effects, and conservative call side effects) to be treated as elements in a single sequence of side effects, which will then be handled in a single place similar to how we already handle argument side effects.
2021-09-03 09:58:31 -04:00
Geoffrey White
f2047ee4d0 C++: Actually fix expected files after layout changes. 2021-09-03 09:13:41 +01:00
Anders Fugmann
d962fc4ce1 C++: Improve predicate upperBound in SimpleRangeAnalysis
If an expression has an immediate guardPhi node, this is used as a strict upper bound
2021-09-02 21:46:18 +02:00
Anders Fugmann
c110508b4e C++: Add tests to expose potential improvements available to SimpleRangeAnalysis 2021-09-02 21:20:33 +02:00
Geoffrey White
a0b712d44b C++: Add notice about the SAMATE Juliet tests. 2021-09-02 17:34:48 +01:00