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author | Filipe Cabecinhas <me@filcab.net> | 2015-10-06 12:37:54 +0000 |
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committer | Filipe Cabecinhas <me@filcab.net> | 2015-10-06 12:37:54 +0000 |
commit | b70fd8719e04209827e0ea115965e10225e98f5c (patch) | |
tree | 9701a05459d6cb54e0c1690ac4492e3af472ba63 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
parent | 4c33a1af5d727d2810baf5b6878c3badaf5f05e1 (diff) | |
download | bcm5719-llvm-b70fd8719e04209827e0ea115965e10225e98f5c.tar.gz bcm5719-llvm-b70fd8719e04209827e0ea115965e10225e98f5c.zip |
Make sure the CastInst is valid before trying to create it
Bug found with afl-fuzz.
llvm-svn: 249396
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
-rw-r--r-- | llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp index 2893eaef0fb..ce6790be713 100644 --- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp @@ -3863,7 +3863,10 @@ std::error_code BitcodeReader::parseFunctionBody(Function *F) { CurBB->getInstList().push_back(Temp); } } else { - I = CastInst::Create((Instruction::CastOps)Opc, Op, ResTy); + auto CastOp = (Instruction::CastOps)Opc; + if (!CastInst::castIsValid(CastOp, Op, ResTy)) + return error("Invalid cast"); + I = CastInst::Create(CastOp, Op, ResTy); } InstructionList.push_back(I); break; |