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[BitcodeReader] It's a malformed block if CodeLenWidth is too big

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Bug found with AFL fuzz.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237646 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Filipe Cabecinhas
2015-05-19 00:34:17 +00:00
parent 09f87b4a7b
commit c3ccd67d72
3 changed files with 9 additions and 0 deletions
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test/Bitcode/Inputs/invalid-code-len-width.bc Normal file
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test/Bitcode/invalid.test
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@ -147,3 +147,8 @@ RUN: not llvm-dis -disable-output %p/Inputs/invalid-inserted-value-type-mismatch
RUN: FileCheck --check-prefix=INSERT-TYPE-MISMATCH %s
INSERT-TYPE-MISMATCH: Inserted value type doesn't match aggregate type
RUN: not llvm-dis -disable-output %p/Inputs/invalid-code-len-width.bc 2>&1 | \
RUN: FileCheck --check-prefix=INVALID-CODELENWIDTH %s
INVALID-CODELENWIDTH: Malformed block