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From: Florian Westphal <fw@strlen.de>
To: Vincent Tondellier <tondellier+ml.nfdev@dosisoft.fr>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: OOPS NULL pointer dereference in nf_nat_setup_info+0x471 (reproductible, 3.14.4)
Date: Thu, 29 May 2014 20:32:53 +0200	[thread overview]
Message-ID: <20140529183253.GA16912@breakpoint.cc> (raw)
In-Reply-To: <9874911.sZTeTrmm52@quad>

Vincent Tondellier <tondellier+ml.nfdev@dosisoft.fr> wrote:
> sysctl -w net.ipv4.ip_forward=1
> sysctl -w net.netfilter.nf_conntrack_helper=0
> sysctl -w net.netfilter.nf_conntrack_acct=1
> 
> And try to connect the pptp client. Instant oops.

Q: does it not oops with _acct=0?

If that fixes it, and you have lockdep enabled in kernel
config -- can you check if

commit 223b02d923ecd7c84cf9780bb3686f455d279279
netfilter: nf_conntrack: reserve two bytes for nf_ct_ext->len

helps?

  reply	other threads:[~2014-05-29 18:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-26 16:59 OOPS NULL pointer dereference in nf_nat_setup_info+0x471 (reproductible, 3.14.4) Vincent Tondellier
2014-05-27  9:12 ` Vincent Tondellier
2014-05-29 16:41 ` Vincent Tondellier
2014-05-29 18:32   ` Florian Westphal [this message]
2014-05-30  0:06     ` Vincent Tondellier

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