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llvm / scudo / 5b8a17129cf1042626b4d06b533c1b064a5e56fd
commit5b8a17129cf1042626b4d06b533c1b064a5e56fd[log] [tgz]
authorPeter Collingbourne <peter@pcc.me.uk>Thu May 13 13:55:16 2021 -0700
committerCopybara-Service <copybara-worker@google.com>Tue May 25 19:10:35 2021 -0700
tree02f476a662d7c52e7f70aabc81536903be12be43
parent79cb0059113603f7226b52fa73442c16707f8bb4 [diff]
scudo: Fix MTE error reporting for zero-sized allocations.

With zero-sized allocations we don't actually end up storing the
address tag to the memory tag space, so store it in the first byte of
the chunk instead so that we can find it later in getInlineErrorInfo().

Differential Revision: https://reviews.llvm.org/D102442

GitOrigin-RevId: f79929aceae966f9419cfc00c275e5e60bd0ee54
1 file changed
tree: 02f476a662d7c52e7f70aabc81536903be12be43
  1. benchmarks/
  2. fuzz/
  3. include/
  4. tests/
  5. tools/
  6. allocator_config.h
  7. atomic_helpers.h
  8. bytemap.h
  9. checksum.cpp
  10. checksum.h
  11. chunk.h
  12. combined.h
  13. common.cpp
  14. common.h
  15. crc32_hw.cpp
  16. flags.cpp
  17. flags.h
  18. flags.inc
  19. flags_parser.cpp
  20. flags_parser.h
  21. fuchsia.cpp
  22. fuchsia.h
  23. internal_defs.h
  24. LICENSE.TXT
  25. linux.cpp
  26. linux.h
  27. list.h
  28. local_cache.h
  29. memtag.h
  30. mutex.h
  31. options.h
  32. platform.h
  33. primary32.h
  34. primary64.h
  35. quarantine.h
  36. release.cpp
  37. release.h
  38. report.cpp
  39. report.h
  40. secondary.h
  41. size_class_map.h
  42. stack_depot.h
  43. stats.h
  44. string_utils.cpp
  45. string_utils.h
  46. tsd.h
  47. tsd_exclusive.h
  48. tsd_shared.h
  49. vector.h
  50. wrappers_c.cpp
  51. wrappers_c.h
  52. wrappers_c.inc
  53. wrappers_c_bionic.cpp
  54. wrappers_c_checks.h
  55. wrappers_cpp.cpp