1 files changed, 9 insertions, 0 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index dd48052e086f..2407249998c3 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -549,6 +549,15 @@ static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
 		if (ACCESS_ONCE(ctx->released) ||
 		    fatal_signal_pending(current)) {
 			__remove_wait_queue(&ctx->event_wqh, &ewq->wq);
+			if (ewq->msg.event == UFFD_EVENT_FORK) {
+				struct userfaultfd_ctx *new;
+
+				new = (struct userfaultfd_ctx *)
+					(unsigned long)
+					ewq->msg.arg.reserved.reserved1;
+
+				userfaultfd_ctx_put(new);
+			}
 			break;
 		}