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

 Issue 752482  has been merged into this issue.

Probably https://pdfium.googlesource.com/pdfium/+/0811da801dd72e2e0af2d7b9d1e866162df2cee1
due to Delete() call just before the trace.

ClusterFuzz testcase 5514649318719488 is verified as fixed, so closing issue as verified.

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

ClusterFuzz has detected this issue as fixed in range 493950:493964.

Detailed report: https://clusterfuzz.com/testcase?key=4946920677310464

Fuzzer: afl_pdf_cfx_barcode_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x61900000197c
Crash State:
  GetAt
  CBC_EncoderContext::getCurrentChar
  CBC_C40Encoder::BacktrackOneCharacter
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=491611:491661
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=493950:493964

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4946920677310464

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