linux-kernel - Re: WARNING in __proc

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Message-ID: <c4b2dca8-f2b9-c187-9ee5-e7c4816848f5@gmail.com>
Date:   Fri, 9 Mar 2018 14:58:43 -0800
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Cong Wang <xiyou.wangcong@...il.com>,
        syzbot <syzbot+0502b00edac2a0680b61@...kaller.appspotmail.com>
Cc:     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



On 03/09/2018 02:56 PM, Eric Dumazet wrote:

> 
> 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.

Yes, Florian mentioned that we also had to reject "."  and ".."