llvm-undame: Fix an assert-on-invalid
Found by oss-fuzz, fixes issue 12432 on os-fuzz.
Differential Revision: https://reviews.llvm.org/D60206
llvm-svn: 357648
diff --git a/llvm/lib/Demangle/MicrosoftDemangle.cpp b/llvm/lib/Demangle/MicrosoftDemangle.cpp
index b4e5cef..653c76e 100644
--- a/llvm/lib/Demangle/MicrosoftDemangle.cpp
+++ b/llvm/lib/Demangle/MicrosoftDemangle.cpp
@@ -1389,9 +1389,12 @@
return nullptr;
if (Identifier->kind() == NodeKind::StructorIdentifier) {
+ if (QN->Components->Count < 2) {
+ Error = true;
+ return nullptr;
+ }
StructorIdentifierNode *SIN =
static_cast<StructorIdentifierNode *>(Identifier);
- assert(QN->Components->Count >= 2);
Node *ClassNode = QN->Components->Nodes[QN->Components->Count - 2];
SIN->Class = static_cast<IdentifierNode *>(ClassNode);
}