From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [Patch net] llc: fix NULL pointer deref for SOCK_ZAPPED
Date: Sun, 22 Apr 2018 14:56:44 -0400 (EDT)
Message-ID: <20180422.145644.689210525606215829.davem@davemloft.net>
References: <20180420045434.21477-1-xiyou.wangcong@gmail.com>
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From: Cong Wang <xiyou.wangcong@gmail.com>
Date: Thu, 19 Apr 2018 21:54:34 -0700

> For SOCK_ZAPPED socket, we don't need to care about llc->sap,
> so we should just skip these refcount functions in this case.
> 
> Fixes: f7e43672683b ("llc: hold llc_sap before release_sock()")
> Reported-by: kernel test robot <lkp@intel.com>
> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>

Applied and queued up for -stable, thanks Cong.