[PATCH] fs/super: fix memory leak of s_fs_info on setup_bdev_super failure

[Mehdi Ben Hadj Khelifa]

#syz test

diff --git a/fs/super.c b/fs/super.c
index 5bab94fb7e03..a99e5281b057 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1690,6 +1690,11 @@ int get_tree_bdev_flags(struct fs_context *fc,
 		if (!error)
 			error = fill_super(s, fc);
 		if (error) {
+			/*
+			 * return back sb_info ownership to fc to be freed by put_fs_context()
+			 */
+			fc->s_fs_info = s->s_fs_info;
+			s->s_fs_info = NULL;
 			deactivate_locked_super(s);
 			return error;
 		}
-- 
2.51.2