Predator and CL did not provide any possible suspects.
Using Code Search for the file, "sqlite3.c" assigning to concern owner who previously worked on similar file.

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

Automatically applying components based on information from OWNERS files. If this seems incorrect, please apply the Test-Predator-Wrong-Components label.

For more information, please see https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md.

The link referenced in the description is no longer valid.

(bulk edit)

ClusterFuzz has detected this issue as fixed in range 535444:535460.

Detailed report: https://clusterfuzz.com/testcase?key=5391468467585024

Fuzzer: libFuzzer_sqlite3_ossfuzz_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  sqlite3Fts3GetVarint32
  fts3SegReaderNext
  sqlite3Fts3SegReaderStep
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=433990:434098
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=535444:535460

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5391468467585024

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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 5391468467585024 is verified as fixed, so closing issue as verified.

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