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

Again sending to Yuqian to look at all of these aa, in case they are related

(related to  Issue 750438 ?)

ClusterFuzz has detected this issue as fixed in range 491148:491245.

Detailed report: https://clusterfuzz.com/testcase?key=5086219167072256

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Stack-buffer-overflow READ 4
Crash Address: 0x7f65697a0cc0
Crash State:
  add_aa_span
  walk_edges
  sk_fill_path
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=489393:489475
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=491148:491245

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5086219167072256


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.

ClusterFuzz testcase 5086219167072256 is verified as fixed, so closing issue as verified.

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

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