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llvm / libfuzzer / 3711b109edaa96a9139a2caadc8f28554c541ef7
commit3711b109edaa96a9139a2caadc8f28554c541ef7[log] [tgz]
authorMatt Morehouse <mascasa@google.com>Tue May 08 23:45:05 2018 +0000
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:16:53 2021 -0700
tree6fc5dfb081a857da8b0e40c62f10e52075b63781
parent6033af7b886804e5c25b0048c8c611af986d63a7 [diff]
[libFuzzer] Guard symbolization with try-lock.

Summary:
When out-of-memory or timeout occurs, threads can be stopped during
symbolization, thereby causing a deadlock when the OOM/TO handlers
attempt symbolization.  We avoid this deadlock by skipping symbolization
if another thread is symbolizing.

Reviewers: kcc

Reviewed By: kcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D46605

llvm-svn: 331825
GitOrigin-RevId: 14cf71a3a505eea44bcea188df510107d9655205
3 files changed
tree: 6fc5dfb081a857da8b0e40c62f10e52075b63781
  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