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author | Zachary Turner <zturner@google.com> | 2016-06-08 00:25:08 +0000 |
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committer | Zachary Turner <zturner@google.com> | 2016-06-08 00:25:08 +0000 |
commit | d2b2bfed9465847baa82a314d4da161b368395bb (patch) | |
tree | a394e7cbf39161112109b311381b2afc0e14de4c /llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp | |
parent | a483eae2ff21d238ba3a872ef72ec7943acaefa2 (diff) | |
download | llvm-d2b2bfed9465847baa82a314d4da161b368395bb.zip llvm-d2b2bfed9465847baa82a314d4da161b368395bb.tar.gz llvm-d2b2bfed9465847baa82a314d4da161b368395bb.tar.bz2 |
[pdb] Try to fix use after free.
llvm-svn: 272078
Diffstat (limited to 'llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp')
-rw-r--r-- | llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp b/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp index 386f8ac..f34a513 100644 --- a/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp +++ b/llvm/lib/DebugInfo/PDB/Raw/TpiStream.cpp @@ -104,6 +104,10 @@ Error TpiStream::reload() { return EC; // Hash indices, hash values, etc come from the hash stream. + if (Header->HashStreamIndex >= Pdb.getNumStreams()) + return make_error<RawError>(raw_error_code::corrupt_file, + "Invalid TPI hash stream index."); + HashStream.reset(new MappedBlockStream( llvm::make_unique<IndexedStreamData>(Header->HashStreamIndex, Pdb), Pdb)); codeview::StreamReader HSR(*HashStream); |