Detailed report: https://clusterfuzz.com/testcase?key=6321468657631232

Fuzzer: libFuzzer_appcache_manifest_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x3a0000298107
Crash State:
  void fuzzer::TracePC::IterateInline8bitCounters<fuzzer::TracePC::InitializeUnsta
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6321468657631232

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. We will auto-close the bug if the crash is not seen for 14 days.