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Issue 814092 link

Starred by 2 users

Issue metadata

Status: Verified
Owner:
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in base::CommandLine::HasSwitch

Project Member Reported by ClusterFuzz, Feb 21 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5196870247514112

Fuzzer: libFuzzer_net_data_job_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  base::CommandLine::HasSwitch
  base::internal::GetMaxNumScheduledBackgroundSequences
  base::internal::TaskTracker::TaskTracker
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=537847:537881

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5196870247514112

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 21 2018

Components: Internals>Core Internals>TaskScheduler
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Feb 21 2018

Labels: Test-Predator-Auto-Owner
Owner: fdoray@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/7b4401f0ecb3645eb61c7e9f7a2b4348bfb036a2 (Add --disable-background-tasks flag.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Project Member

Comment 3 by ClusterFuzz, Feb 21 2018

ClusterFuzz has detected this issue as fixed in range 537942:537956.

Detailed report: https://clusterfuzz.com/testcase?key=5196870247514112

Fuzzer: libFuzzer_net_data_job_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  base::CommandLine::HasSwitch
  base::internal::GetMaxNumScheduledBackgroundSequences
  base::internal::TaskTracker::TaskTracker
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=537847:537881
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=537942:537956

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5196870247514112

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 4 by ClusterFuzz, Feb 21 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5196870247514112 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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