[all-commits] [llvm/llvm-project] 33a4c4: [asan] Print standalone partial granules in poison...

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 33a4c4940c66dd2bf34ec24aa0c26c59b4c8eead
      https://github.com/llvm/llvm-project/commit/33a4c4940c66dd2bf34ec24aa0c26c59b4c8eead
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2026-05-04 (Mon, 04 May 2026)

  Changed paths:
    M compiler-rt/lib/asan/asan_errors.cpp
    M compiler-rt/test/asan/TestCases/use-after-poison-history-size-partial-granule.cpp

  Log Message:
  -----------
  [asan] Print standalone partial granules in poison_history_size (#195723)

Currently, `poison_history_size` only reports the poisoning stack trace
if the shadow value is exactly `kAsanUserPoisonedMemoryMagic`.

Unlike heap or stack poisoning, where red-zones
guaranteed, user poisoning more likely end-up with
single standalong granule. Printing history could be helpful.

Merge https://github.com/llvm/llvm-project/pull/195670 into main.



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