netdev - Re: 3.9.5+: Crash in tcp

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:	Tue, 02 Jul 2013 21:41:52 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ben Greear <greearb@...delatech.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: 3.9.5+:  Crash in tcp_input.c:4810.

On Tue, 2013-07-02 at 20:21 -0700, Ben Greear wrote:

> What kinds of things could a driver do to cause this.  Maybe modify an
> skb after it has sent it up the stack, or something like that?
> 

It might be a genuine TCP bug, who knows...

> We haven't been able to reproduce on a clean 3.10 yet...but it often takes days,
> so we'll leave the test up through end of this week if we don't hit it
> sooner...

TCP collapse is/should be really rare, but losses can of course trigger
it.

> 
> I'll add your patch to my 3.9 tree.

Thanks

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html