https://github.com/python/cpython/commit/9c7ef0cc28650520fea1cc5c35b1b3f2d94bc96a
commit: 9c7ef0cc28650520fea1cc5c35b1b3f2d94bc96a
branch: 3.13
author: Miss Islington (bot) <31488909+miss-isling...@users.noreply.github.com>
committer: colesbury <colesb...@gmail.com>
date: 2025-03-25T15:15:26Z
summary:
[3.13] gh-131719: add NULL pointer check to `_PyMem_FreeDelayed` (gh-131720)
(gh-131722)
(cherry picked from commit 0a91456ad14bb598646f50bf8f034e8887c0c468)
Co-authored-by: Tomasz Pytel <tompy...@gmail.com>
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2025-03-25-13-58-25.gh-issue-131719.zKv98a.rst
M Objects/obmalloc.c
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2025-03-25-13-58-25.gh-issue-131719.zKv98a.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2025-03-25-13-58-25.gh-issue-131719.zKv98a.rst
new file mode 100644
index 00000000000000..ad917553270349
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2025-03-25-13-58-25.gh-issue-131719.zKv98a.rst
@@ -0,0 +1 @@
+Fix missing NULL check in ``_PyMem_FreeDelayed`` in :term:`free-threaded <free
threading>` build.
diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c
index 4b830f5bb63c69..6f23639645000b 100644
--- a/Objects/obmalloc.c
+++ b/Objects/obmalloc.c
@@ -1160,7 +1160,9 @@ void
_PyMem_FreeDelayed(void *ptr)
{
assert(!((uintptr_t)ptr & 0x01));
- free_delayed((uintptr_t)ptr);
+ if (ptr != NULL) {
+ free_delayed((uintptr_t)ptr);
+ }
}
void
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