pythongh-145376: Fix refleak in unusual error path in BaseExceptionGroup_new (pythonGH-145474)

eendebakpt · ljfp · commit 51e2a102e03e · 2026-04-25T17:51:35.000+02:00
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
@@ -912,7 +912,7 @@ BaseExceptionGroup_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 
     exceptions = PySequence_Tuple(exceptions);
     if (!exceptions) {
-        return NULL;
+        goto error;
     }
 
     /* We are now holding a ref to the exceptions tuple */

Original file line number	Diff line number	Diff line change
`@@ -912,7 +912,7 @@ BaseExceptionGroup_new(PyTypeObject type, PyObject args, PyObject *kwds)`
`912`	`912`
`913`	`913`	`exceptions = PySequence_Tuple(exceptions);`
`914`	`914`	`if (!exceptions) {`
`915`		`- return NULL;`
	`915`	`+ goto error;`
`916`	`916`	`}`
`917`	`917`
`918`	`918`	`/* We are now holding a ref to the exceptions tuple */`