From: David Miller <davem@davemloft.net>
To: ktkhai@virtuozzo.com
Cc: ebiggers@google.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com,
tom@quantonium.net, viro@ZenIV.linux.org.uk, edumazet@google.com
Subject: Re: [PATCH net] kcm: Fix use-after-free caused by clonned sockets
Date: Fri, 01 Jun 2018 10:28:43 -0400 (EDT) [thread overview]
Message-ID: <20180601.102843.1873090277840412224.davem@davemloft.net> (raw)
In-Reply-To: <c1d76abc-5d6f-bd0a-9c84-1c5ed8119e8f@virtuozzo.com>
From: Kirill Tkhai <ktkhai@virtuozzo.com>
Date: Fri, 1 Jun 2018 14:30:38 +0300
> (resend for properly queueing in patchwork)
>
> kcm_clone() creates kernel socket, which does not take net counter.
> Thus, the net may die before the socket is completely destructed,
> i.e. kcm_exit_net() is executed before kcm_done().
>
> Reported-by: syzbot+5f1a04e374a635efc426@syzkaller.appspotmail.com
> Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Applied and queued up for -stable, thanks.
prev parent reply other threads:[~2018-06-01 14:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 8:16 WARNING in kcm_exit_net (3) syzbot
2018-05-31 9:58 ` Kirill Tkhai
2018-06-01 11:10 ` Kirill Tkhai
2018-06-01 11:30 ` [PATCH net] kcm: Fix use-after-free caused by clonned sockets Kirill Tkhai
2018-06-01 14:28 ` David Miller [this message]
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