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llvm / libfuzzer / 53bf7e77691d482ef31e25acb88b52a0f007136d
commit53bf7e77691d482ef31e25acb88b52a0f007136d[log] [tgz]
authorMatt Morehouse <mascasa@google.com>Tue May 01 21:01:53 2018 +0000
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:16:51 2021 -0700
tree4ccd5cf78112eb03be086913ffd3c996781ecd90
parent96022c0b75735a03cebc58eda1d45d01fa8f30c6 [diff]
[libFuzzer] Report at most one crash per input.

Summary:
Fixes https://github.com/google/sanitizers/issues/788/, a deadlock
caused by multiple crashes happening at the same time.  Before printing
a crash report, we now test and set an atomic flag.  If the flag was
already set, the crash handler returns immediately.

Reviewers: kcc

Reviewed By: kcc

Subscribers: llvm-commits, kubamracek

Differential Revision: https://reviews.llvm.org/D46277

llvm-svn: 331310
GitOrigin-RevId: 52fd16903569c0f8c3ca3dfe89d664969739f2f0
2 files changed
tree: 4ccd5cf78112eb03be086913ffd3c996781ecd90
  1. afl/
  2. scripts/
  3. standalone/
  4. tests/
  5. build.sh
  6. FuzzerClangCounters.cpp
  7. FuzzerCommand.h
  8. FuzzerCorpus.h
  9. FuzzerCrossOver.cpp
  10. FuzzerDefs.h
  11. FuzzerDictionary.h
  12. FuzzerDriver.cpp
  13. FuzzerExtFunctions.def
  14. FuzzerExtFunctions.h
  15. FuzzerExtFunctionsDlsym.cpp
  16. FuzzerExtFunctionsDlsymWin.cpp
  17. FuzzerExtFunctionsWeak.cpp
  18. FuzzerExtFunctionsWeakAlias.cpp
  19. FuzzerExtraCounters.cpp
  20. FuzzerFlags.def
  21. FuzzerInterface.h
  22. FuzzerInternal.h
  23. FuzzerIO.cpp
  24. FuzzerIO.h
  25. FuzzerIOPosix.cpp
  26. FuzzerIOWindows.cpp
  27. FuzzerLoop.cpp
  28. FuzzerMain.cpp
  29. FuzzerMerge.cpp
  30. FuzzerMerge.h
  31. FuzzerMutate.cpp
  32. FuzzerMutate.h
  33. FuzzerOptions.h
  34. FuzzerRandom.h
  35. FuzzerSHA1.cpp
  36. FuzzerSHA1.h
  37. FuzzerShmem.h
  38. FuzzerShmemFuchsia.cpp
  39. FuzzerShmemPosix.cpp
  40. FuzzerShmemWindows.cpp
  41. FuzzerTracePC.cpp
  42. FuzzerTracePC.h
  43. FuzzerUtil.cpp
  44. FuzzerUtil.h
  45. FuzzerUtilDarwin.cpp
  46. FuzzerUtilFuchsia.cpp
  47. FuzzerUtilLinux.cpp
  48. FuzzerUtilPosix.cpp
  49. FuzzerUtilWindows.cpp
  50. FuzzerValueBitMap.h
  51. LICENSE.TXT
  52. README.txt