kernel: Fix potential refcount leak in su check

Change-Id: I7e1ecb78bfc951bf645a1462988dcd93c4247a9b
2017-05-19 18:24:04 +00:00
parent 672c40a112
commit 05e290dfc9
1 changed files with 3 additions and 1 deletions
@@ -2012,8 +2012,10 @@ static int path_lookupat(int dfd, const char *name,
 	if (!err) {
 		struct super_block *sb = nd->inode->i_sb;
 		if (sb->s_flags & MS_RDONLY) {
-			if (d_is_su(nd->path.dentry) && !su_visible())
+			if (d_is_su(nd->path.dentry) && !su_visible()) {
+				path_put(&nd->path);
 				err = -ENOENT;
+			}
 		}
 	}