linux-kernel - Re: [PATCH ghak21 V4 2/2] audit: add refused symlink to audit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHC9VhTFqY7p2zfX4y91cGpFg832sgyf7RRKw9YY3mARgz2GbA@mail.gmail.com>
Date:   Wed, 21 Mar 2018 11:49:02 -0400
From:   Paul Moore <paul@...l-moore.com>
To:     Richard Guy Briggs <rgb@...hat.com>
Cc:     Linux-Audit Mailing List <linux-audit@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Eric Paris <eparis@...hat.com>,
        Steve Grubb <sgrubb@...hat.com>,
        Kees Cook <keescook@...omium.org>
Subject: Re: [PATCH ghak21 V4 2/2] audit: add refused symlink to audit_names

On Wed, Mar 21, 2018 at 4:42 AM, Richard Guy Briggs <rgb@...hat.com> wrote:
> Audit link denied events for symlinks had duplicate PATH records rather
> than just updating the existing PATH record.  Update the symlink's PATH
> record with the current dentry and inode information.
>
> See: https://github.com/linux-audit/audit-kernel/issues/21
> Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
> ---
>  fs/namei.c | 1 +
>  1 file changed, 1 insertion(+)

Merged.  Thanks for the audit log examples.

> diff --git a/fs/namei.c b/fs/namei.c
> index e3682bb..5f8e8e2 100644
> --- a/fs/namei.c
> +++ b/fs/namei.c
> @@ -945,6 +945,7 @@ static inline int may_follow_link(struct nameidata *nd)
>         if (nd->flags & LOOKUP_RCU)
>                 return -ECHILD;
>
> +       audit_inode(nd->name, nd->stack[0].link.dentry, 0);
>         audit_log_link_denied("follow_link");
>         return -EACCES;
>  }
> --
> 1.8.3.1

-- 
paul moore
www.paul-moore.com