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

Likely the skia roll that is in range.  Please re-assign to me if it turns out not to be the case.  Thanks!

ClusterFuzz has detected this issue as fixed in range 493099:493163.

Detailed report: https://clusterfuzz.com/testcase?key=4823385942261760

Fuzzer: afl_paint_op_buffer_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x6140000003f8
Crash State:
  GrTextUtils::DrawDFPosText
  GrAtlasTextContext::MakeDrawPosTextBlob
  GrAtlasTextContext::drawPosText
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=491876:491976
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=493099:493163

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4823385942261760

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 4823385942261760 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