linux-kernel - Re: 5.0.7: WARNING: CPU: 1 PID: 169 at net/netfilter/nft

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Message-ID: <f90ffd6e6f0ebd1f9e99a3d01f526bb92da97b2a.camel@ai.vub.ac.be>
Date:   Tue, 09 Apr 2019 11:59:08 +0200
From:   Frederik Himpe <fhimpe@...vub.ac.be>
To:     Florian Westphal <fw@...len.de>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        netfilter-devel@...r.kernel.org
Subject: Re: 5.0.7: WARNING: CPU: 1 PID: 169 at
 net/netfilter/nft_compat.c:82 and genreal protection fault

On Mon, 2019-04-08 at 22:19 +0200, Florian Westphal wrote:
> Frederik Himpe <fhimpe@...vub.ac.be> wrote:
> > I'm experiencing this reproducible bug every time shorewall6 is
> > restarted:
> > [   28.932323] WARNING: CPU: 1 PID: 169 at
> > net/netfilter/nft_compat.c:82 nft_xt_put.part.9+0x21/0x30
> > [nft_compat]
> [..]
> > [   29.015565] general protection fault: 0000 [#1] SMP PTI
> > [   29.015574] CPU: 3 PID: 2069 Comm: ip6tables-resto Tainted:
> > G        W   E     5.0.7 #1
> 
> Does this problem go away when you apply this commit on top of 5.0.7?
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8e204006340b7aaf32bd2b9806c692f6e0cb38a
> 
> If not, can you send a minimal reproducer?

Indeed, the problem does not happen any more with this patch applied to
5.0.7. Thanks!

-- 
Frederik Himpe <fhimpe@...vub.ac.be>
Vrije Universiteit Brussel