diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index aede71245e9f9594a47a4165787f2485ba530f1d..7961b27aceead89e6e75f3f7aa00d8383569bec2 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -6098,6 +6098,11 @@ inherit_event(struct perf_event *parent_event,
 	child_event->ctx = child_ctx;
 	child_event->overflow_handler = parent_event->overflow_handler;
 
+	/*
+	 * Precalculate sample_data sizes
+	 */
+	perf_event__header_size(child_event);
+
 	/*
 	 * Link it up in the child's context:
 	 */