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

dsinclair could you please take a look at this pdfium bug? Thanks!

This is XFA which is not enabled in any branch of Chromium.

ClusterFuzz has detected this issue as fixed in range 446305:446370.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4998208536444928

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
  CFX_WideString::FromUTF8
  
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=446305:446370

Minimized Testcase (8.49 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95k2P7p8RO1x-3xRHafxhxO_55xhbYhNOUTOQmPFlENYoB3WJztGdXtk8bWW_WskND4g6qRN-IAkD7y4YwMtAhhDjuXMfm6HJCJl-w7UQvflg7erKHxfN7ct8dtDyuofTEvmzz7h3vqvjs90XMT2CZ4iLdajF2TYxUlXwXjsXYcTaS0NRpJpLWCXXlMIx2kWMmejruONQojYoi8JZhy9tZviO5B9E3yiweHME6367zirZACZG5op-UJBIOabGai_VXikBUE_hMhDAl_GaLGBSGm4kCJ04dps9-gGSv8xRix5VRCE79AIUTU9n8qEI9fgQvcvRiaBc66DThqD8DDA4uYQgdezMWdPcu1GxkPxQgSKBiwI7M?testcase_id=4998208536444928

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 4998208536444928 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