[llvm-bugs] Issue 7643 in oss-fuzz: llvm/clang-fuzzer: Stack-overflow in clang::DeclContext::lookup

[ClusterFuzz-External via monorail via llvm-bugs]

Status: New
Owner: ----
CC: kcc at google.com, mascasa at google.com, jdevlieg... at apple.com,  
igm... at gmail.com, llvm-b... at lists.llvm.org, v... at apple.com,  
mitchphi... at outlook.com, xpl... at gmail.com, akils... at apple.com
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer Proj-llvm Reported-2018-04-13
Type: Bug

New issue 7643 by ClusterFuzz-External: llvm/clang-fuzzer: Stack-overflow  
in clang::DeclContext::lookup
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7643

Detailed report: https://oss-fuzz.com/testcase?key=5310959087255552

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: 0x7ffcb4209c78
Crash State:
   clang::DeclContext::lookup
   clang::DeclContext::using_directives
   UnqualUsingDirectiveSet::addUsingDirectives

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201801030610:201801040618

Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5310959087255552

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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