Merge tag 'perf-urgent-2023-10-28' of git://git.kernel.org/pub/scm/li…

…nux/kernel/git/tip/tip Pull perf event fix from Ingo Molnar: "Fix a potential NULL dereference bug" * tag 'perf-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix potential NULL deref
mariux64 · Oct 28, 2023 · 4714de0 · 4714de0
2 parents 51a7691 + a71ef31
commit 4714de0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/kernel/events/core.c b/kernel/events/core.c
@@ -13372,7 +13372,8 @@ static int inherit_group(struct perf_event *parent_event,
 		    !perf_get_aux_event(child_ctr, leader))
 			return -EINVAL;
 	}
-	leader->group_generation = parent_event->group_generation;
+	if (leader)
+		leader->group_generation = parent_event->group_generation;
 	return 0;
 }