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

Bad stack due to old llvm-symbolizer. Updating to latest version.

ClusterFuzz has detected this issue as fixed in range 416731:416738.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5740838179307520

Fuzzer: libfuzzer_safe_browsing_dmg_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: Heap-buffer-overflow READ {*}
Crash Address: 0x619000001d80
Crash State:
  safe_browsing::dmg::UDIFBlock::ParseBlockData
  safe_browsing::dmg::UDIFParser::ParseBlkx
  start
  
Recommended Security Severity: Medium

Fixed: https://cluster-fuzz.appspot.com/revisions?job=mac_libfuzzer_chrome_asan&range=416731:416738

Minimized Testcase (8.05 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95ffPSWIAUG5VsuJxm9-WguWhkP79h83apcDWHnsGiYzZ3g-S3TmxFDAXNqz-6hKplDf2VEQtY3GCvrCvFxvXsFEVMsxemdsIrjT7h4WVNGnopSl9OSd4G7A5UeUT5f9Cic7NI4I7a8dFrHfH-1xWi9JgkyvQ?testcase_id=5740838179307520

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