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

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

Hi Heather, Cary,

Could one of you please help find an owner for this skia security bug?!

There's no obvious CL in the clusterfuzz range: https://chromium.googlesource.com/skia/+log/3711e1185d53aa70e56c28b5b6f74ab1590fd865..6ad3d2fa38589fafd8b1c203996a402bd8b24362?pretty=fuller

And it doesn't look like any recent changes to SkOpBuilder.cpp are guilty: https://chromium.googlesource.com/skia.git/+log/master/src/pathops/SkOpBuilder.cpp

Thanks!

This may be a duplicate of this bug: bug.skia.org/6073

which was fixed here: skia.googlesource.com/skia.git/+/fa9193dcbe813e32376acb2411bfbb2420d03c28

The fix is already merged into Chrome

ClusterFuzz has detected this issue as fixed in range 440071:440109.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5887957069463552

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  SkOpBuilder::FixWinding
  SkOpBuilder::resolve
  _start
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=439808:439935
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=440071:440109

Minimized Testcase (0.30 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97ttVpYprx2M_-CUvTIMNwSP_EW73O1LxLFIYHZFG1erAkxEH71b96GBVsojBX8Z4kR4KQV4UzV4YytBXcfdttcr7Lu2Ovk6VT1otKNzvzmrT649TISyu_wQekpsKgtA-EbLY8xTA2h877lCPW3SpsCxGY1cQ?testcase_id=5887957069463552

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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