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[BitcodeReader] Error out if we read an invalid function argument type
Bug found with AFL fuzz. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237650 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1402,8 +1402,11 @@ std::error_code BitcodeReader::ParseTypeTableBody() {
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return Error("Invalid record");
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SmallVector<Type*, 8> ArgTys;
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for (unsigned i = 2, e = Record.size(); i != e; ++i) {
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if (Type *T = getTypeByID(Record[i]))
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if (Type *T = getTypeByID(Record[i])) {
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if (!FunctionType::isValidArgumentType(T))
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return Error("Invalid function argument type");
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ArgTys.push_back(T);
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}
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else
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break;
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}
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BIN
test/Bitcode/Inputs/invalid-function-argument-type.bc
Normal file
BIN
test/Bitcode/Inputs/invalid-function-argument-type.bc
Normal file
Binary file not shown.
@ -152,3 +152,8 @@ RUN: not llvm-dis -disable-output %p/Inputs/invalid-code-len-width.bc 2>&1 | \
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RUN: FileCheck --check-prefix=INVALID-CODELENWIDTH %s
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INVALID-CODELENWIDTH: Malformed block
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RUN: not llvm-dis -disable-output %p/Inputs/invalid-function-argument-type.bc 2>&1 | \
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RUN: FileCheck --check-prefix=INVALID-ARGUMENT-TYPE %s
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INVALID-ARGUMENT-TYPE: Invalid function argument type
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