[llvm-bugs] Issue 6505 in oss-fuzz: llvm/clang-fuzzer: Stack-overflow in Evaluate

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer Proj-llvm Reported-2018-02-22
Type: Bug

New issue 6505 by ClusterFuzz-External: llvm/clang-fuzzer: Stack-overflow  
in Evaluate
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6505

Detailed report: https://oss-fuzz.com/testcase?key=5644518255755264

Project: llvm
Fuzzer: libFuzzer_llvm_clang-fuzzer
Fuzz target binary: clang-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: Stack-overflow
Crash Address: 0x7ffe33b77e80
Crash State:
   Evaluate
   IntExprEvaluator::VisitUnaryOperator
   clang::StmtVisitorBase<clang::make_const_ptr, IntExprEvaluator,  
bool>::Visit

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201712090607:201712100011

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5644518255755264

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
more information.

When you fix this bug, please
   * mention the fix revision(s).
   * state whether the bug was a short-lived regression or an old bug in any  
stable releases.
   * add any other useful information.
This information can help downstream consumers.

If you have questions for the OSS-Fuzz team, please file an issue at  
https://github.com/google/oss-fuzz/issues.

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