linux-kernel - Re: WARNING in __proc

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Message-ID: <20180309230212.GD19924@breakpoint.cc>
Date:   Sat, 10 Mar 2018 00:02:12 +0100
From:   Florian Westphal <fw@...len.de>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Cong Wang <xiyou.wangcong@...il.com>,
        syzbot <syzbot+0502b00edac2a0680b61@...kaller.appspotmail.com>,
        coreteam@...filter.org, David Miller <davem@...emloft.net>,
        Florian Westphal <fw@...len.de>,
        Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        netfilter-devel@...r.kernel.org,
        Pablo Neira Ayuso <pablo@...filter.org>,
        syzkaller-bugs@...glegroups.com
Subject: Re: WARNING in __proc_create

Eric Dumazet <eric.dumazet@...il.com> wrote:
> >>fs/proc/generic.c:354
> >
> >We need to reject empty names.
> >
> 
> I sent a patch a while back, but Pablo/Florian wanted more than that simple
> fix.
> 
> We also need to filter special characters like '/'
> 
> Or maybe I am mixing with something else.

Argh, sorry, this fell off the truck it seems :(

I'll work on this tomorrow unless someone else does it today ;)