From 6b17d1a783d3c0a9c8a35a94e24a2987807728ef Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Sat, 23 May 2026 21:27:27 +0200 Subject: [PATCH] [3.15] gh-150178: Fix refcount leaks in hamt allocation failure paths (GH-150179) (#150303) gh-150178: Fix refcount leaks in hamt allocation failure paths (GH-150179) (cherry picked from commit 32823af153b76b7042fbce28ea8a6e0c3c4f1ca8) Co-authored-by: pengyu lee --- Python/hamt.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Python/hamt.c b/Python/hamt.c index e4719e71a52..95998ae5062 100644 --- a/Python/hamt.c +++ b/Python/hamt.c @@ -702,6 +702,7 @@ hamt_node_bitmap_assoc(PyHamtNode_Bitmap *self, PyHamtNode_Bitmap *ret = hamt_node_bitmap_clone(self); if (ret == NULL) { + Py_DECREF(sub_node); return NULL; } Py_SETREF(ret->b_array[val_idx], (PyObject*)sub_node); @@ -994,6 +995,7 @@ hamt_node_bitmap_without(PyHamtNode_Bitmap *self, PyHamtNode_Bitmap *clone = hamt_node_bitmap_clone(self); if (clone == NULL) { + Py_DECREF(sub_node); return W_ERROR; }