Automatically applying components based on crash stacktrace and information from OWNERS files.

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

Automatically assigning owner based on suspected regression changelist https://pdfium.googlesource.com/pdfium/+/b2b00c31f48c86a1bde7f3e6c07752d1c9195cea (Use UnownedPtr<> in JBig2_GrdProc.h).

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.

This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

ClusterFuzz has detected this issue as fixed in range 585091:585109.

Detailed report: https://clusterfuzz.com/testcase?key=5081554297290752

Fuzzer: libFuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Container-overflow READ 1
Crash Address: 0x625000000200
Crash State:
  fxcrt::UnownedPtr<JBig2ArithCtx>::ProbeForLowSeverityLifetimeIssue
  fxcrt::UnownedPtr<JBig2ArithCtx>::~UnownedPtr
  CJBig2_GRDProc::ProgressiveArithDecodeState::~ProgressiveArithDecodeState
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=584638:584640
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=585091:585109

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5081554297290752

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.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot