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

A friendly reminder that M57 Beta launch is coming soon on February 2nd! Your bug is labelled as Beta ReleaseBlock, pls make sure to land the fix and get it merged into the release branch (2987) ASAP so it gets enough baking time in Dev (before Beta promotion). Thank you!

Assigning to tsepez for further triage.

ClusterFuzz has detected this issue as fixed in range 445428:445576.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4670812037840896

Fuzzer: libfuzzer_pdf_css_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  CFDE_CSSSyntaxParser::DoSyntaxParse
  _start
  CFDE_CSSTextBuf::Reset
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=444258:444490
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=445428:445576

Minimized Testcase (0.24 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95GARGyHWhysN2VQVnPAeADmwaDyhJ_MiSHYWf3zz6qSXkpIZ4ltlTHZplCQElXomANzx9rXZJCvaL10wl3j0PXB2blnEFVGn2cMHx8cKxeqqAvwOR5Ric0Z96xfv007kxfQHf8ZiJgd4y2kytXQcICso5JweLbAGz1tVjT0nY-bpRiQ74jNj4atrfADCZcBJcQUsKc3zAt5SuMBbvmmVLX6b3524kqQ12FNYq1nLA7dRWw3yMAWnLKdNuQpXExcT1cxYp6OoZ3ZcB9o3vw_1MWW1sh_OCcF6PMtKR_3txav-9T4MZbg0TJ9PpImK6KT4jjk_LHdLS-XkGLQhbTqOitF0ATLfq-w9Tl6lanK2suKqWuhWw?testcase_id=4670812037840896

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 4670812037840896 is verified as fixed, so closing issue.

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