diff options
Diffstat (limited to 'clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp')
| -rw-r--r-- | clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp index 0b3d635a50a3..8fc44e78be6f 100644 --- a/clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp +++ b/clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp @@ -48,8 +48,10 @@ void MmapWriteExecChecker::checkPreCall(const CallEvent &Call, CheckerContext &C) const { if (matchesAny(Call, MmapFn, MprotectFn)) { SVal ProtVal = Call.getArgSVal(2); - auto ProtLoc = ProtVal.castAs<nonloc::ConcreteInt>(); - int64_t Prot = ProtLoc.getValue().getSExtValue(); + auto ProtLoc = ProtVal.getAs<nonloc::ConcreteInt>(); + if (!ProtLoc) + return; + int64_t Prot = ProtLoc->getValue().getSExtValue(); if (ProtExecOv != ProtExec) ProtExec = ProtExecOv; if (ProtReadOv != ProtRead) |