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_Py_RefcntAdd doesn't respect immortality #104142

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brandtbucher opened this issue May 3, 2023 · 0 comments
Closed

_Py_RefcntAdd doesn't respect immortality #104142

brandtbucher opened this issue May 3, 2023 · 0 comments
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3.12 bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) release-blocker triaged The issue has been accepted as valid by a triager. type-bug An unexpected behavior, bug, or error

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brandtbucher commented May 3, 2023 •
edited by bedevere-bot
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This is used by list and tuple internally:

>>> import sys
>>> sys.getrefcount(None) == (1 << 32) - 1
True
>>> refs = [None] * 42
>>> sys.getrefcount(None) == (1 << 32) - 1
False
>>> del refs
>>> sys.getrefcount(None) == (1 << 32) - 1
True

I'll have a PR up in a bit.

CC: @ericsnowcurrently, @eduardo-elizondo

Linked PRs
@brandtbucher brandtbucher added type-bug An unexpected behavior, bug, or error interpreter-core (Objects, Python, Grammar, and Parser dirs) release-blocker triaged The issue has been accepted as valid by a triager. labels May 3, 2023
@brandtbucher brandtbucher self-assigned this May 3, 2023
@brandtbucher brandtbucher added the 3.12 bugs and security fixes label May 3, 2023
@bedevere-bot bedevere-bot mentioned this issue May 3, 2023
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brandtbucher added a commit that referenced this issue May 5, 2023
@brandtbucher
GH-104142: Fix _Py_RefcntAdd to respect immortality (GH-104143)
ce871fd
carljm added a commit to carljm/cpython that referenced this issue May 5, 2023
@carljm
Merge branch 'main' into inlinecomp2
8a78a36 
* main: (61 commits)
  pythongh-64595: Argument Clinic: Touch source file if any output file changed (python#104152)
  pythongh-64631: Test exception messages in cloned Argument Clinic funcs (python#104167)
  pythongh-68395: Avoid naming conflicts by mangling variable names in Argument Clinic (python#104065)
  pythongh-64658: Expand Argument Clinic return converter docs (python#104175)
  pythonGH-103092: port `_asyncio` freelist to module state (python#104196)
  pythongh-104051: fix crash in test_xxtestfuzz with -We (python#104052)
  pythongh-104190: fix ubsan crash (python#104191)
  pythongh-104106: Add gcc fallback of mkfifoat/mknodat for macOS (pythongh-104129)
  pythonGH-104142: Fix _Py_RefcntAdd to respect immortality (pythonGH-104143)
  pythongh-104112: link from cached_property docs to method-caching FAQ (python#104113)
  pythongh-68968: Correcting message display issue with assertEqual (python#103937)
  pythonGH-103899: Provide a hint when accidentally calling a module (pythonGH-103900)
  pythongh-103963: fix 'make regen-opcode' in out-of-tree builds (python#104177)
  pythongh-102500: Add PEP 688 and 698 to the 3.12 release highlights (python#104174)
  pythonGH-81079: Add case_sensitive argument to `pathlib.Path.glob()` (pythonGH-102710)
  pythongh-91896: Deprecate collections.abc.ByteString (python#102096)
  pythongh-99593: Add tests for Unicode C API (part 2) (python#99868)
  pythongh-102500: Document PEP 688 (python#102571)
  pythongh-102500: Implement PEP 688 (python#102521)
  pythongh-96534: socketmodule: support FreeBSD divert(4) socket (python#96536)
  ...
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3.12 bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) release-blocker triaged The issue has been accepted as valid by a triager. type-bug An unexpected behavior, bug, or error
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