From: Dino Viehland <dinoviehland@meta.com>
Date: Wed, 22 May 2024 17:38:56 +0000 (-0400)
Subject: gh-117657: Fix missing atomic in dict_resize (#119312)
X-Git-Tag: v3.14.0a1~1802
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2b3fb767bea1f96c9e0523f6cc341b40f0fa1ca1;p=thirdparty%2FPython%2Fcpython.git

gh-117657: Fix missing atomic in dict_resize (#119312)

Fix missing atomic in dict_resize
---

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 985a326a176c..6e1c3b93fd39 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -2003,7 +2003,7 @@ dictresize(PyInterpreterState *interp, PyDictObject *mp,
         if (oldvalues->embedded) {
             assert(oldvalues->embedded == 1);
             assert(oldvalues->valid == 1);
-            oldvalues->valid = 0;
+            FT_ATOMIC_STORE_UINT8(oldvalues->valid, 0);
         }
         else {
             free_values(oldvalues, IS_DICT_SHARED(mp));