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Issue metadata

Status: WontFix
Owner: ----
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



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Timeout in expat_xml_parse_fuzzer

Project Member Reported by ClusterFuzz, Jan 16 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5679021110329344

Fuzzer: libFuzzer_expat_xml_parse_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  expat_xml_parse_fuzzer
  
Sanitizer: undefined (UBSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5679021110329344

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. We will auto-close the bug if the crash is not seen for 14 days.
 
Cc: kcc@chromium.org brajkumar@chromium.org
Components: Blink>XML
Labels: Test-Predator-Wrong CF-NeedsTriage
Unable to find actual suspect through code search and also no regressed revision range is seen, hence marking it as untriaged.

Note: Observing some recent changes for the below file 'FuzzerLoop.cpp', so cc'ing to @kcc for more updates on this issue.

https://chromium.googlesource.com/chromium/llvm-project/compiler-rt/lib/fuzzer.git/+log/ba2c1cd6f87accb32b5dbce297387c56a2e53a2f/FuzzerLoop.cpp

Thanks!
Project Member

Comment 2 by ClusterFuzz, Jan 18 2018

Labels: OS-Mac
Status: WontFix (was: Untriaged)
There are other bugs covering this.

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