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Issue metadata

Status: Verified
Owner:
Closed: Dec 14
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug



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

Project Member Reported by ClusterFuzz, Dec 12

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5061770949165056

Fuzzer: libFuzzer_hit_test_query_fuzzer
Fuzz target binary: hit_test_query_fuzzer
Job Type: windows_libfuzzer_chrome_asan
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x000000000018
Crash State:
  base::CommandLine::HasSwitch
  features::IsVizHitTestingSurfaceLayerEnabled
  viz::HitTestQuery::GetTransformToTargetRecursively
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_libfuzzer_chrome_asan&range=615633:615663

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5061770949165056

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 12

Labels: OS-Linux
Project Member

Comment 2 by ClusterFuzz, Dec 12

Components: Internals>Compositing Internals>Core
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 3 by ClusterFuzz, Dec 12

Cc: sadrul@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Project Member

Comment 4 by ClusterFuzz, Dec 12

Labels: Test-Predator-Auto-Owner
Owner: sunxd@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/cc346947ff37b367a388f7d5252d1f77d24d1e1b (Do not offset location by region's origin in V2 hit testing).

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 5 by ClusterFuzz, Dec 14

ClusterFuzz has detected this issue as fixed in range 616369:616409.

Detailed report: https://clusterfuzz.com/testcase?key=5061770949165056

Fuzzer: libFuzzer_hit_test_query_fuzzer
Fuzz target binary: hit_test_query_fuzzer
Job Type: windows_libfuzzer_chrome_asan
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x000000000018
Crash State:
  base::CommandLine::HasSwitch
  features::IsVizHitTestingSurfaceLayerEnabled
  viz::HitTestQuery::GetTransformToTargetRecursively
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_libfuzzer_chrome_asan&range=615633:615663
Fixed: https://clusterfuzz.com/revisions?job=windows_libfuzzer_chrome_asan&range=616369:616409

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5061770949165056

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing_on_windows.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, Dec 14

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5061770949165056 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
The documentation for reproducing bugs on Windows was moved to: https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md

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