netdev - Re: [PATCH net] tcp: do not drop syn

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] [day] [month] [year] [list]

Date:	Tue, 09 Feb 2016 04:17:53 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, pety@...net.ru
Subject: Re: [PATCH net] tcp: do not drop syn_recv on all icmp reports

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 02 Feb 2016 19:31:12 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Petr Novopashenniy reported that ICMP redirects on SYN_RECV sockets
> were leading to RST.
> 
> This is of course incorrect.
> 
> A specific list of ICMP messages should be able to drop a SYN_RECV.
> 
> For instance, a REDIRECT on SYN_RECV shall be ignored, as we do
> not hold a dst per SYN_RECV pseudo request.
> 
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=111751
> Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table")
> Reported-by: Petr Novopashenniy <pety@...net.ru>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied and queued up for -stable, thanks Eric.