[3.13] gh-132869: Fix crash in _PyObject_TryGetInstanceAttribute
#133700
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This fixes a crash in `_PyObject_TryGetInstanceAttribute` due to the use of `_PyDictKeys_StringLookup` on an unlocked dictionary that may be concurrently modified. The underlying bug was already fixed in 3.14 and the main branch. (partially cherry picked from commit 1b15c89)
colesbury
commented
May 8, 2025
| #endif | ||
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| static Py_ssize_t | ||
| unicodekeys_lookup_split(PyDictKeysObject* dk, PyObject *key, Py_hash_t hash) |
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FYI, the dictobject.c changes are taken verbatim from main
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Thanks @colesbury ! |
mpage
approved these changes
May 8, 2025
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This fixes a crash in
_PyObject_TryGetInstanceAttributedue to the use of_PyDictKeys_StringLookupon an unlocked dictionary that may be concurrently modified.The underlying bug was already fixed in 3.14 and the main branch.
(partially cherry picked from commit 1b15c89)