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C++: Generate SEH edges for pointer dereference loads in __try blocks

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This commit is contained in:
Jeroen Ketema
2025-06-14 00:00:37 +02:00
parent 3eb768c1e9
commit 9d6a1a9885
3 changed files with 88 additions and 62 deletions
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9
cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedExpr.qll
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@@ -400,7 +400,14 @@ class TranslatedLoad extends TranslatedValueCategoryAdjustment, TTranslatedLoad
override Instruction getInstructionSuccessorInternal(InstructionTag tag, EdgeKind kind) {
tag = LoadTag() and
result = this.getParent().getChildSuccessor(this, kind)
(
result = this.getParent().getChildSuccessor(this, kind)
or
expr instanceof PointerDereferenceExpr and
kind instanceof SehExceptionEdge and
exists(MicrosoftTryStmt tryStmt | tryStmt.getStmt() = expr.getEnclosingStmt().getParent*()) and
result = this.getParent().getExceptionSuccessorInstruction(any(GotoEdge e))
)
}
override Instruction getChildSuccessorInternal(TranslatedElement child, EdgeKind kind) {