[all-commits] [llvm/llvm-project] c2a3fb: [msan] Don't track origns in signal handlers

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c2a3fb303f1fffeb0856863cc5eff1529e1db5e7
      https://github.com/llvm/llvm-project/commit/c2a3fb303f1fffeb0856863cc5eff1529e1db5e7
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2021-08-05 (Thu, 05 Aug 2021)

  Changed paths:
    M compiler-rt/lib/msan/msan_poisoning.cpp
    A compiler-rt/test/msan/poison_in_signal.cpp

  Log Message:
  -----------
  [msan] Don't track origns in signal handlers

Origin::CreateHeapOrigin is not async-signal-safe and can deadlock.

Differential Revision: https://reviews.llvm.org/D107431