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llvm / libfuzzer / 4b47b179fff10cfbdf5d6c6bd50922874147be5b
commit4b47b179fff10cfbdf5d6c6bd50922874147be5b[log] [tgz]
authorMax Moroz <mmoroz@chromium.org>Wed Dec 04 13:24:59 2019 -0800
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:20:33 2021 -0700
tree72d17cd1b99d3fcf2b8a1a99d2f91cef5a7e0b6d
parentb0e1903edc69e754014843cf127c57fe352e33d5 [diff]
[compiler-rt] FuzzedDataProvider: do not call memcpy on empty vector.

Summary:
Some versions of memcpy mark pointer arguments as __nonnull, that triggers UBSan
errors even when the length passed is 0.

Reviewers: manojgupta, metzman

Subscribers: dberris, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D71031

[compiler-rt] FDP: assert that num_bytes_to_consume == 0 when size == 0.

GitOrigin-RevId: a44ef027ebca1598892ea9b104d6189aeb3bc2f0
1 file changed
tree: 72d17cd1b99d3fcf2b8a1a99d2f91cef5a7e0b6d
  1. afl/
  2. dataflow/
  3. scripts/
  4. standalone/
  5. tests/
  6. build.sh
  7. FuzzedDataProvider.h
  8. FuzzerBuiltins.h
  9. FuzzerBuiltinsMsvc.h
  10. FuzzerCommand.h
  11. FuzzerCorpus.h
  12. FuzzerCrossOver.cpp
  13. FuzzerDataFlowTrace.cpp
  14. FuzzerDataFlowTrace.h
  15. FuzzerDefs.h
  16. FuzzerDictionary.h
  17. FuzzerDriver.cpp
  18. FuzzerExtFunctions.def
  19. FuzzerExtFunctions.h
  20. FuzzerExtFunctionsDlsym.cpp
  21. FuzzerExtFunctionsWeak.cpp
  22. FuzzerExtFunctionsWindows.cpp
  23. FuzzerExtraCounters.cpp
  24. FuzzerFlags.def
  25. FuzzerFork.cpp
  26. FuzzerFork.h
  27. FuzzerInterface.h
  28. FuzzerInternal.h
  29. FuzzerIO.cpp
  30. FuzzerIO.h
  31. FuzzerIOPosix.cpp
  32. FuzzerIOWindows.cpp
  33. FuzzerLoop.cpp
  34. FuzzerMain.cpp
  35. FuzzerMerge.cpp
  36. FuzzerMerge.h
  37. FuzzerMutate.cpp
  38. FuzzerMutate.h
  39. FuzzerOptions.h
  40. FuzzerRandom.h
  41. FuzzerSHA1.cpp
  42. FuzzerSHA1.h
  43. FuzzerTracePC.cpp
  44. FuzzerTracePC.h
  45. FuzzerUtil.cpp
  46. FuzzerUtil.h
  47. FuzzerUtilDarwin.cpp
  48. FuzzerUtilFuchsia.cpp
  49. FuzzerUtilLinux.cpp
  50. FuzzerUtilPosix.cpp
  51. FuzzerUtilWindows.cpp
  52. FuzzerValueBitMap.h
  53. LICENSE.TXT
  54. README.txt