dsinclair@ could you please look into this. thanks

How can I test this locally? The given fuzzer doesn't seem to have a build target? The file doesn't not exhibit this behaviour with pdfium_test.

ClusterFuzz has detected this issue as fixed in range 411957:412168.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5574337895858176

Fuzzer: ochang_search_index_mutator
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  TT2PDF
  CPDF_CIDFont::GetCharBBox
  CPDF_TextObject::CalcPositionData
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=409458:409520
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=411957:412168

Minimized Testcase (764.69 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95roYglt6ZdF7oQHrcF3tqkn7xexMX56uQdgcKegLoeUXrLlZ720ebijWYm2wMpr6H22wM_WqIqBCESZJWEy7qGHHn0fIVMxDPrJSd0V-N-Ya_-Nuza2DL2h4w4nRNe96nD1WsAbRXsWoMrS7ZTieuNZWu24o7LnUQDJkrEYcLTSp9z_Is?testcase_id=5574337895858176

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

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