Predator and CL did not provide any possible suspects.
Using Code Search for the file, "SkUtils_opts.h" assigning to the concern owner.
Suspecting Commit#
https://skia.googlesource.com/skia.git/+/87db00111596d432908882a13982adde79793a7c

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

probably the same as 735279

ClusterFuzz has detected this issue as fixed in range 485950:486007.

Detailed report: https://clusterfuzz.com/testcase?key=5663131287420928

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_asan_chrome_v8_arm
Platform Id: linux

Crash Type: Null-dereference WRITE
Crash Address: 0x00000000
Crash State:
  avx::memset32
  SkColorShader::ColorShaderContext::shadeSpan
  SkARGB32_Shader_Blitter::blitRect
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=480776:480840
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=485950:486007

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5663131287420928


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.