Detailed report: https://clusterfuzz.com/testcase?key=5675168322813952

Fuzzer: libFuzzer_icu_uregex_open_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  minML <= maxML
  icu_63::RegexCompile::handleCloseParen
  icu_63::RegexCompile::doParseActions
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=395614:395804

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5675168322813952

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.