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| author | Victor Stinner <vstinner@python.org> | 2021-05-21 17:19:54 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-05-21 17:19:54 (GMT) |
| commit | 615069eb08494d089bf24e43547fbc482ed699b8 (patch) | |
| tree | 06d4a3c69bb0f8078f4021aee8c19d2924a2f774 /Misc/NEWS.d | |
| parent | 642fdfdc04e8e40c2cd3e65d67b09fac472bb345 (diff) | |
| download | cpython-615069eb08494d089bf24e43547fbc482ed699b8.zip cpython-615069eb08494d089bf24e43547fbc482ed699b8.tar.gz cpython-615069eb08494d089bf24e43547fbc482ed699b8.tar.bz2 | |
bpo-44184: Fix subtype_dealloc() for freed type (GH-26274)
Fix a crash at Python exit when a deallocator function removes the
last strong reference to a heap type.
Don't read type memory after calling basedealloc() since
basedealloc() can deallocate the type and free its memory.
_PyMem_IsPtrFreed() argument is now constant.
Diffstat (limited to 'Misc/NEWS.d')
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2021-05-21-01-42-45.bpo-44184.9qOptC.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-05-21-01-42-45.bpo-44184.9qOptC.rst b/Misc/NEWS.d/next/Core and Builtins/2021-05-21-01-42-45.bpo-44184.9qOptC.rst new file mode 100644 index 0000000..3aba9a5 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2021-05-21-01-42-45.bpo-44184.9qOptC.rst @@ -0,0 +1,3 @@ +Fix a crash at Python exit when a deallocator function removes the last strong +reference to a heap type. +Patch by Victor Stinner. |