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[BitcodeReader] Sanity check on Comdat ID

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Shouldn't be an assert, since user input can trigger it.

Bug found with AFL fuzz.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238261 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Filipe Cabecinhas
2015-05-26 23:00:56 +00:00
parent 116e31ffbe
commit 1c74d4768a
4 changed files with 14 additions and 2 deletions
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test/Bitcode/Inputs/invalid-function-comdat-id.bc Normal file
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test/Bitcode/Inputs/invalid-global-var-comdat-id.bc Normal file
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test/Bitcode/invalid.test
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@@ -162,3 +162,13 @@ RUN: not llvm-dis -disable-output %p/Inputs/invalid-fixme-streaming-blob.bc 2>&1
RUN: FileCheck --check-prefix=STREAMING-BLOB %s
STREAMING-BLOB: getPointer in streaming memory objects not allowed
RUN: not llvm-dis -disable-output %p/Inputs/invalid-function-comdat-id.bc 2>&1 | \
RUN: FileCheck --check-prefix=INVALID-FCOMDAT-ID %s
INVALID-FCOMDAT-ID: Invalid function comdat ID
RUN: not llvm-dis -disable-output %p/Inputs/invalid-global-var-comdat-id.bc 2>&1 | \
RUN: FileCheck --check-prefix=INVALID-GVCOMDAT-ID %s
INVALID-GVCOMDAT-ID: Invalid global variable comdat ID