_pickle: fix refleak

vstinner · vstinner · commit fe7e7f5ecfaa · 2025-11-14T21:02:05.000+01:00
diff --git a/Modules/_pickle.c b/Modules/_pickle.c
@@ -611,6 +611,7 @@ Pdata_poplist2(PickleState *state, Pdata *self, Py_ssize_t start)
     for (Py_ssize_t i = start, j = 0; j < len; i+=2, j++) {
         PyObject *subtuple = PyTuple_New(2);
         if (subtuple == NULL) {
+            Py_DECREF(list);
             return NULL;
         }
 

Original file line number	Diff line number	Diff line change
`@@ -611,6 +611,7 @@ Pdata_poplist2(PickleState state, Pdata self, Py_ssize_t start)`
`611`	`611`	`for (Py_ssize_t i = start, j = 0; j < len; i+=2, j++) {`
`612`	`612`	`PyObject *subtuple = PyTuple_New(2);`
`613`	`613`	`if (subtuple == NULL) {`
	`614`	`+ Py_DECREF(list);`
`614`	`615`	`return NULL;`
`615`	`616`	`}`
`616`	`617`