Find it and CL did not provide any possible suspect.
Using Code Search for the file, "CanvasRenderingContext2D.cpp" assigning to the concern owner.
Suspecting Commit# 
https://chromium.googlesource.com/chromium/src/+/50c83740c5e9efd2ffe380b0f0181e843908172b

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

Incorrect std::isfinite calls in that neighborhood.

ClusterFuzz has detected this issue as fixed in range 440242:440280.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4748542511153152

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Float-cast-overflow
Crash Address: 
Crash State:
  blink::CanvasRenderingContext2D::drawTextInternal
  blink::CanvasRenderingContext2D::strokeText
  strokeTextMethod
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=435261:438085
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=440242:440280

Minimized Testcase (0.44 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95wNk6fu6lmUtswfzip8s-VzpyFe7UcYxESEZ8sMeD-pzN3V-n5YreIWF94gts06hlDZWAv6woZjvb4zAxJ8B2yF3J9kAV8JBwhxShRl2wA4546aDralBK7QOWVvJumVLq2etn3RkM5OF9otL9d4OrWtOg-zg?testcase_id=4748542511153152

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.