Find it did not provide any possible suspects.
Assigning to the concern owner from CL --
https://chromium.googlesource.com/v8/v8/+log/0c4b8ff44ce4ef0cae06c964679c98c32f8bd40f..4c699e349a4986b28574b3a51e8780e3a3d067b1?pretty=fuller

@jkummerow -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

ClusterFuzz has detected this issue as fixed in range 42270:42271.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4668943928393728

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_v8_mipsel_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  index <= subject->length() in runtime-regexp.cc
  
Sanitizer: address (ASAN)

Regressed: V8: r42192:42193
Fixed: V8: r42270:42271

Minimized Testcase (6.99 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95naLVbxhvSo4UbdyuTrsUSMM1Ci17sbsEg0Y-xhUkqGnWnMtrHIYPYW3BYp9wwVTcxIbBtNwYDIOmFGNDN1Qjl2GMNI-DqF6nqdKAhAPoRYVaWP3p7WBtpDvj7snfUW6C5xDROUL7-KZHYZoJzYK-VK9KqYx2O8oonck4O50KP7n4fCJ_GDsVjJINTg1CwAcSqZ9Aqhi0Ljbbcq4PVkkCq9zT0hstRx8At19kn3XCgkscOcxMNu5QQxIhplV5omHR1PHO8s36fYwW2NL2anq57zh3GmHLtGTyMoNVymlfK4YNpFzJX0IE_guFJ4Hp5KdDuy6f1YF8wlsuUmWEN6dV2F9dpg39DMY8n6puJFZZydMQ5QSX0bbRgoQU9l4FdYDbnT9TJ1S_8vZUO_wHn5PSBvYk-SQ?testcase_id=4668943928393728

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 4668943928393728 is verified as fixed, so closing issue.

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