netdev - Re: [PATCH net] tcp: ulp: fix possible crash in tcp_diag_get_aux

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]

Date:   Fri, 06 Sep 2019 09:17:47 +0200
From:   Davide Caratti <dcaratti@...hat.com>
To:     Eric Dumazet <edumazet@...gle.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Luke Hsiao <lukehsiao@...gle.com>,
        Neal Cardwell <ncardwell@...gle.com>
Subject: Re: [PATCH net] tcp: ulp: fix possible crash in
 tcp_diag_get_aux_size()

On Thu, 2019-09-05 at 13:20 -0700, Eric Dumazet wrote:
> tcp_diag_get_aux_size() can be called with sockets in any state.
> 
> icsk_ulp_ops is only present for full sockets.
> 
> For SYN_RECV or TIME_WAIT ones we would access garbage.
> 

hello Eric, 

thanks for fixing this!

Acked-by: Davide Caratti <dcaratti@...hat.com>