[all-commits] [llvm/llvm-project] 2613c7: [HWASAN] Prevent SEGV in report near inaccessible ...

Vitaly Buka via All-commits all-commits at lists.llvm.org
Wed Sep 20 14:07:43 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2613c77cbaa0cdf166626271e103d9af0f8ff9d3
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2023-09-20 (Wed, 20 Sep 2023)

  Changed paths:
    M compiler-rt/lib/hwasan/hwasan_report.cpp
    A compiler-rt/test/hwasan/TestCases/report-unmapped.cpp

  Log Message:
  [HWASAN] Prevent SEGV in report near inaccessible memory (#66861)

We can't use IsAccessibleMemoryRange on short granule check because of
performance impact. However we can prevent crashing if report prints out
"Tags for short granules around the buggy address".

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