https://github.com/python/cpython/commit/6b217ea90b9cd694fded6308bc796e324bbacd19
commit: 6b217ea90b9cd694fded6308bc796e324bbacd19
branch: main
author: sobolevn <[email protected]>
committer: sobolevn <[email protected]>
date: 2026-06-12T14:03:21+03:00
summary:
gh-151126: Fix crash on unset memory error in `ctypes.get_errno` (#151382)
files:
A Misc/NEWS.d/next/Library/2026-06-12-00-04-34.gh-issue-151126.aHaBYq.rst
M Modules/_ctypes/callproc.c
diff --git
a/Misc/NEWS.d/next/Library/2026-06-12-00-04-34.gh-issue-151126.aHaBYq.rst
b/Misc/NEWS.d/next/Library/2026-06-12-00-04-34.gh-issue-151126.aHaBYq.rst
new file mode 100644
index 000000000000000..20ef69d5de5ac55
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-06-12-00-04-34.gh-issue-151126.aHaBYq.rst
@@ -0,0 +1,2 @@
+Fix crash on unset :exc:`MemoryError` on allocation failure in
+:func:`ctypes.get_errno`.
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index e453cfeec9cc8ca..ccc57e347b07acf 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -168,8 +168,9 @@ _ctypes_get_errobj(ctypes_state *st, int **pspace)
}
else {
void *space = PyMem_Calloc(2, sizeof(int));
- if (space == NULL)
- return NULL;
+ if (space == NULL) {
+ return PyErr_NoMemory();
+ }
errobj = PyCapsule_New(space, CTYPES_CAPSULE_NAME_PYMEM,
pymem_destructor);
if (errobj == NULL) {
PyMem_Free(space);
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