NamedMDNode element is either null or MDNode. Otherwise this is a malformed NamedMDNode record.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93037 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 33da5e4..bec9c50 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -793,8 +793,10 @@
Elts.push_back(NULL);
else {
Value *MD = MDValueList.getValueFwdRef(Record[i]);
- if (MDNode *B = dyn_cast_or_null<MDNode>(MD))
+ if (MDNode *B = dyn_cast<MDNode>(MD))
Elts.push_back(B);
+ else
+ return Error("Malformed metadata record");
}
}
Value *V = NamedMDNode::Create(Context, Name.str(), Elts.data(),