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Issue metadata

Status: Verified
Owner:
Closed: Aug 19
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Direct-leak in google_breakpad::MinidumpContext::Read

Project Member Reported by ClusterFuzz, Nov 10 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5185524460683264

Fuzzer: libFuzzer_minidump_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  google_breakpad::MinidumpContext::Read
  google_breakpad::MinidumpThread::GetContext
  google_breakpad::MinidumpProcessor::Process
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=510446:510468

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5185524460683264

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Components: Internals>CrashReporting
Project Member

Comment 2 by ClusterFuzz, Nov 10 2017

Labels: Test-Predator-Auto-Owner
Owner: lgrey@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/d7ebcbcf5f4b8eeec191a1bb8e68d3b67f6d3b8d (Explicitly add signature and header in minidump fuzzer).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Comment 3 by lgrey@chromium.org, Nov 13 2017

Cc: mark@chromium.org
Mark, is this anything to worry about? 

Comment 4 by mark@chromium.org, Nov 13 2017

Cc: wfh@chromium.org
Leaks are always bad, but given https://clusterfuzz.com/download?testcase_id=5185524460683264, I can’t find a path in to MinidumpThread::GetContext at all, so I don’t know what to do here.

I did prepend the header from https://chromium.googlesource.com/chromium/src/+/d7ebcbcf5f4b8eeec191a1bb8e68d3b67f6d3b8d%5E%21/#F1.
Project Member

Comment 5 by ClusterFuzz, Aug 19

ClusterFuzz has detected this issue as fixed in range 584316:584317.

Detailed report: https://clusterfuzz.com/testcase?key=5185524460683264

Fuzzer: libFuzzer_minidump_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  google_breakpad::MinidumpContext::Read
  google_breakpad::MinidumpThread::GetContext
  google_breakpad::MinidumpProcessor::Process
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=510446:510468
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=584316:584317

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5185524460683264

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

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 6 by ClusterFuzz, Aug 19

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5185524460683264 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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