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Merge pull request #12538 from michaelnebel/emptypredworkaround

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DataFlow: Workaround empty predicate usage in IPA branch.
This commit is contained in:
Michael Nebel
2023-03-17 10:29:19 +01:00
committed by GitHub
parent d2647850d2 3fea9e4d0b
commit 282b5d4836
8 changed files with 48 additions and 80 deletions
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16
ruby/ql/lib/codeql/ruby/dataflow/internal/DataFlowImpl.qll
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@@ -418,6 +418,10 @@ module Impl<FullStateConfigSig Config> {
)
}
private predicate sourceCallCtx(CallContext cc) {
if hasSourceCallCtx() then cc instanceof CallContextSomeCall else cc instanceof CallContextAny
}
private predicate hasSinkCallCtx() {
exists(FlowFeature feature | feature = Config::getAFeature() |
feature instanceof FeatureHasSinkCallContext or
@@ -2804,11 +2808,7 @@ module Impl<FullStateConfigSig Config> {
// A PathNode is introduced by a source ...
Stage5::revFlow(node, state) and
sourceNode(node, state) and
(
if hasSourceCallCtx()
then cc instanceof CallContextSomeCall
else cc instanceof CallContextAny
) and
sourceCallCtx(cc) and
sc instanceof SummaryCtxNone and
ap = TAccessPathNil(node.getDataFlowType())
or
@@ -3214,11 +3214,7 @@ module Impl<FullStateConfigSig Config> {
override predicate isSource() {
sourceNode(node, state) and
(
if hasSourceCallCtx()
then cc instanceof CallContextSomeCall
else cc instanceof CallContextAny
) and
sourceCallCtx(cc) and
sc instanceof SummaryCtxNone and
ap = TAccessPathNil(node.getDataFlowType())
}