python
diff --git a/‎Objects/exceptions.c
Copy file name to clipboardExpand all lines: Objects/exceptions.c
+1Lines changed: 1 addition & 0 deletions b/‎Objects/exceptions.c
Copy file name to clipboardExpand all lines: Objects/exceptions.c
+1Lines changed: 1 addition & 0 deletions
@@ -3852,6 +3852,7 @@ _PyErr_TrySetFromCause(const char *format, ...)
     msg_prefix = PyUnicode_FromFormatV(format, vargs);
     va_end(vargs);
     if (msg_prefix == NULL) {
+        Py_DECREF(exc);
         return NULL;
     }
Original file line number	Diff line number	Diff line change
`@@ -3852,6 +3852,7 @@ _PyErr_TrySetFromCause(const char *format, ...)`
`3852`	`3852`	`msg_prefix = PyUnicode_FromFormatV(format, vargs);`
`3853`	`3853`	`va_end(vargs);`
`3854`	`3854`	`if (msg_prefix == NULL) {`
	`3855`	`+ Py_DECREF(exc);`
`3855`	`3856`	`return NULL;`
`3856`	`3857`	`}`
`3857`	`3858`