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llvm / scudo / ef0f2327c5ffa59da19af48e30e0eb3f3c3af720
commitef0f2327c5ffa59da19af48e30e0eb3f3c3af720[log] [tgz]
authorVitaly Buka <vitalybuka@google.com>Wed Jun 30 20:22:41 2021 -0700
committerCopybara-Service <copybara-worker@google.com>Thu Jul 15 20:04:12 2021 -0700
treeca6249b1acbd533a997b91dc87f0b3f5c9c6a3fc
parent73abfb421a37aac019eb278e8f07aba9345c5224 [diff]
[scudo] Untag BlockEnd in reallocate

If we get here from reallocate, BlockEnd is tagged. Then we
will storeTag(UntaggedEnd) into the header of the next chunk.

Luckily header tag is 0 so unpatched code still works.

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D105261

GitOrigin-RevId: fe30963600ea579d4046c9a92c6e38cc2be0e9a2
1 file changed
tree: ca6249b1acbd533a997b91dc87f0b3f5c9c6a3fc
  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. trusty.cpp
  47. trusty.h
  48. tsd.h
  49. tsd_exclusive.h
  50. tsd_shared.h
  51. vector.h
  52. wrappers_c.cpp
  53. wrappers_c.h
  54. wrappers_c.inc
  55. wrappers_c_bionic.cpp
  56. wrappers_c_checks.h
  57. wrappers_cpp.cpp