From ffd8d101a3a7d3f2e79deee1e342801703b6dc70 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Thu, 4 Oct 2012 19:56:40 -0400 Subject: [PATCH] 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 Signed-off-by: Al Viro --- fs/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/namei.c b/fs/namei.c index aa30d19e9ed..6d47fac6429 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; } -- 2.43.2