fs: prevent use after free in auditing when symlink following was denied

Commit "fs: add link restriction audit reporting" has added auditing of failed
attempts to follow symlinks. Unfortunately, the auditing was being done after
the struct path structure was released earlier.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/namei.c b/fs/namei.c
index aa30d19e9edd..6d47fac64292 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -692,9 +692,9 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd)
         if (uid_eq(parent->i_uid, inode->i_uid))
                 return 0;
 
+        audit_log_link_denied("follow_link", link);
         path_put_conditional(link, nd);
         path_put(&nd->path);
-        audit_log_link_denied("follow_link", link);
         return -EACCES;
 }