diff options
Diffstat (limited to 'llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp')
| -rw-r--r-- | llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp b/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp index 6e5f536..f9ce344 100644 --- a/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp +++ b/llvm/lib/DebugInfo/PDB/Raw/PDBFile.cpp @@ -123,6 +123,13 @@ std::error_code PDBFile::parseFileHeaders() { Context->SB = reinterpret_cast<const SuperBlock *>(BufferRef.getBufferStart()); const SuperBlock *SB = Context->SB; + switch (SB->BlockSize) { + case 512: case 1024: case 2048: case 4096: + break; + default: + // An invalid block size suggests a corrupt PDB file. + return std::make_error_code(std::errc::illegal_byte_sequence); + } // Make sure the file is sufficiently large to hold a super block. if (BufferRef.getBufferSize() < sizeof(SuperBlock)) |