python
diff --git a/‎Misc/NEWS.d/next/Library/2026-02-27-19-00-26.gh-issue-145301.2Wih4b.rst‎
Lines changed: 2 additions & 0 deletions b/‎Misc/NEWS.d/next/Library/2026-02-27-19-00-26.gh-issue-145301.2Wih4b.rst‎
Lines changed: 2 additions & 0 deletions
diff --git a/‎Misc/NEWS.d/next/Library/2026-02-28-00-55-00.gh-issue-145301.Lk2bRl.rst‎
Lines changed: 2 additions & 0 deletions b/‎Misc/NEWS.d/next/Library/2026-02-28-00-55-00.gh-issue-145301.Lk2bRl.rst‎
Lines changed: 2 additions & 0 deletions
diff --git a/‎Modules/_hashopenssl.c‎
Lines changed: 1 addition & 1 deletion b/‎Modules/_hashopenssl.c‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎Modules/hmacmodule.c‎
Lines changed: 13 additions & 10 deletions b/‎Modules/hmacmodule.c‎
Lines changed: 13 additions & 10 deletions
@@ -0,0 +1,2 @@
+:mod:`hashlib`: fix a crash when the initialization of the underlying C
+extension module fails.
@@ -0,0 +1,2 @@
+:mod:`hmac`: fix a crash when the initialization of the underlying C
+extension module fails.
@@ -268,7 +268,7 @@ py_hashentry_table_new(void) {
 
         if (h->py_alias != NULL) {
             if (_Py_hashtable_set(ht, (const void*)entry->py_alias, (void*)entry) < 0) {
-                PyMem_Free(entry);
+                /* entry is already in ht, will be freed by _Py_hashtable_destroy() */
                 goto error;
             }
             entry->refcnt++;
 
@@ -1453,16 +1453,19 @@ py_hmac_hinfo_ht_new(void)
         assert(value->display_name == NULL);
         value->refcnt = 0;
 
-#define Py_HMAC_HINFO_LINK(KEY)                                 \
-        do {                                                    \
-            int rc = py_hmac_hinfo_ht_add(table, KEY, value);   \
-            if (rc < 0) {                                       \
-                PyMem_Free(value);                              \
-                goto error;                                     \
-            }                                                   \
-            else if (rc == 1) {                                 \
-                value->refcnt++;                                \
-            }                                                   \
+#define Py_HMAC_HINFO_LINK(KEY)                                     \
+        do {                                                        \
+            int rc = py_hmac_hinfo_ht_add(table, (KEY), value);     \
+            if (rc < 0) {                                           \
+                /* entry may already be in ht, freed upon exit */   \
+                if (value->refcnt == 0) {                           \
+                    PyMem_Free(value);                              \
+                }                                                   \
+                goto error;                                         \
+            }                                                       \
+            else if (rc == 1) {                                     \
+                value->refcnt++;                                    \
+            }                                                       \
         } while (0)
         Py_HMAC_HINFO_LINK(e->name);
         Py_HMAC_HINFO_LINK(e->hashlib_name);
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+:mod:`hashlib`: fix a crash when the initialization of the underlying C
	`2`	`+extension module fails.`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+:mod:`hmac`: fix a crash when the initialization of the underlying C
	`2`	`+extension module fails.`
Original file line number	Diff line number	Diff line change
`@@ -268,7 +268,7 @@ py_hashentry_table_new(void) {`
`268`	`268`
`269`	`269`	`if (h->py_alias != NULL) {`
`270`	`270`	`if (_Py_hashtable_set(ht, (const void)entry->py_alias, (void)entry) < 0) {`
`271`		`- PyMem_Free(entry);`
	`271`	`+ /* entry is already in ht, will be freed by _Py_hashtable_destroy() */`
`272`	`272`	`goto error;`
`273`	`273`	`}`
`274`	`274`	`entry->refcnt++;`