diff options
Diffstat (limited to 'llvm/lib/Bitcode')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/BitstreamReader.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitstreamReader.cpp b/llvm/lib/Bitcode/Reader/BitstreamReader.cpp index dff6d181486..450bbbc4558 100644 --- a/llvm/lib/Bitcode/Reader/BitstreamReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitstreamReader.cpp @@ -39,6 +39,10 @@ bool BitstreamCursor::EnterSubBlock(unsigned BlockID, unsigned *NumWordsP) { // Get the codesize of this block. CurCodeSize = ReadVBR(bitc::CodeLenWidth); + // We can't read more than MaxChunkSize at a time + if (CurCodeSize > MaxChunkSize) + return true; + SkipToFourByteBoundary(); unsigned NumWords = Read(bitc::BlockSizeWidth); if (NumWordsP) *NumWordsP = NumWords; |
