https://github.com/python/cpython/commit/d73e43317e08e6d2ce693c61ca6e751996da2d43
commit: d73e43317e08e6d2ce693c61ca6e751996da2d43
branch: 3.15
author: Miss Islington (bot) <[email protected]>
committer: pablogsal <[email protected]>
date: 2026-05-26T01:04:49Z
summary:
[3.15] gh-149931: Fix memory leaks on failed realloc (GH-149932) (#150439)
files:
M Modules/_remote_debugging/frames.c
M Modules/timemodule.c
diff --git a/Modules/_remote_debugging/frames.c
b/Modules/_remote_debugging/frames.c
index 8d8019396b3e31..d73cd080dc477f 100644
--- a/Modules/_remote_debugging/frames.c
+++ b/Modules/_remote_debugging/frames.c
@@ -56,12 +56,14 @@ process_single_stack_chunk(
return -1;
}
- this_chunk = PyMem_RawRealloc(this_chunk, actual_size);
- if (!this_chunk) {
+ char *tmp = PyMem_RawRealloc(this_chunk, actual_size);
+ if (!tmp) {
+ PyMem_RawFree(this_chunk);
PyErr_NoMemory();
set_exception_cause(unwinder, PyExc_MemoryError, "Failed to
reallocate stack chunk buffer");
return -1;
}
+ this_chunk = tmp;
if (_Py_RemoteDebug_PagedReadRemoteMemory(&unwinder->handle,
chunk_addr, actual_size, this_chunk) < 0) {
PyMem_RawFree(this_chunk);
diff --git a/Modules/timemodule.c b/Modules/timemodule.c
index 25e744d7da25c7..d90bf1f2ef90ed 100644
--- a/Modules/timemodule.c
+++ b/Modules/timemodule.c
@@ -820,12 +820,15 @@ time_strftime1(time_char **outbuf, size_t *bufsize,
PyErr_NoMemory();
return NULL;
}
- *outbuf = (time_char *)PyMem_Realloc(*outbuf,
- *bufsize*sizeof(time_char));
- if (*outbuf == NULL) {
+ time_char *tmp = (time_char *)PyMem_Realloc(*outbuf,
+
*bufsize*sizeof(time_char));
+ if (tmp == NULL) {
+ PyMem_Free(*outbuf);
+ *outbuf = NULL;
PyErr_NoMemory();
return NULL;
}
+ *outbuf = tmp;
#if defined _MSC_VER && _MSC_VER >= 1400 && defined(__STDC_SECURE_LIB__)
errno = 0;
#endif
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