[all-commits] [llvm/llvm-project] f30fe1: scudo: Call setCurrentTSD(nullptr) when bringing d...

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  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f30fe16d4902617a33dac1ebca066a7cb7e0f2ec
      https://github.com/llvm/llvm-project/commit/f30fe16d4902617a33dac1ebca066a7cb7e0f2ec
  Author: Peter Collingbourne <peter at pcc.me.uk>
  Date:   2019-11-27 (Wed, 27 Nov 2019)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/tsd_shared.h

  Log Message:
  -----------
  scudo: Call setCurrentTSD(nullptr) when bringing down the TSD registry in tests.

Otherwise, we will hit a use-after-free when testing multiple instances of
the same allocator on the same thread. This only recently became a problem
with D70552 which caused us to run both ScudoCombinedTest.BasicCombined and
ScudoCombinedTest.ReleaseToOS on the unit tests' main thread.

Differential Revision: https://reviews.llvm.org/D70760