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llvm / scudo / ef2d5cb53dd7be757b86efb6321a221216172d85
commitef2d5cb53dd7be757b86efb6321a221216172d85[log] [tgz]
authorChia-hung Duan <chiahungduan@google.com>Thu May 25 17:36:10 2023 +0000
committerCopybara-Service <copybara-worker@google.com>Thu May 25 11:10:59 2023 -0700
tree428ef651e5904677f5c823d738739de9a4b2fe7e
parent40373195eeba898908cfe75f59705084a703e418 [diff]
[scudo] releaseToOSMaybe can fail if it can't allocate PageMap

PageMap is allocated with MAP_ALLOWNOMEM if there's no static buffer
left. So it can be failed and return nullptr without any assertion
triggered. Instead of crashing in the releaseToOSMaybe in the middle,
just return and let the program handles the page failure.

Reviewed By: cferris

Differential Revision: https://reviews.llvm.org/D151379

GitOrigin-RevId: 11ea40cff5413057d823a4b3ac5ac419b674dc56
4 files changed
tree: 428ef651e5904677f5c823d738739de9a4b2fe7e
  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. mem_map.cpp
  30. mem_map.h
  31. mem_map_base.h
  32. memtag.h
  33. mutex.h
  34. options.h
  35. platform.h
  36. primary32.h
  37. primary64.h
  38. quarantine.h
  39. release.cpp
  40. release.h
  41. report.cpp
  42. report.h
  43. rss_limit_checker.cpp
  44. rss_limit_checker.h
  45. secondary.h
  46. size_class_map.h
  47. stack_depot.h
  48. stats.h
  49. string_utils.cpp
  50. string_utils.h
  51. thread_annotations.h
  52. timing.cpp
  53. timing.h
  54. trusty.cpp
  55. trusty.h
  56. tsd.h
  57. tsd_exclusive.h
  58. tsd_shared.h
  59. vector.h
  60. wrappers_c.cpp
  61. wrappers_c.h
  62. wrappers_c.inc
  63. wrappers_c_bionic.cpp
  64. wrappers_c_checks.h
  65. wrappers_cpp.cpp