netdev - Re: [PATCH net] kcm: lock lower socket in kcm

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Message-ID: <20180312210941.GC230165@gmail.com>
Date:   Mon, 12 Mar 2018 14:09:41 -0700
From:   Eric Biggers <ebiggers3@...il.com>
To:     Tom Herbert <tom@...ntonium.net>
Cc:     davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net] kcm: lock lower socket in kcm_attach

On Mon, Mar 12, 2018 at 02:04:12PM -0700, Tom Herbert wrote:
> Need to lock lower socket in order to provide mutual exclusion
> with kcm_unattach.
> 
> Fixes: ab7ac4eb9832e32a09f4e804 ("kcm: Kernel Connection Multiplexor module")
> Signed-off-by: Tom Herbert <tom@...ntonium.net>
> ---

Is this fixing the syzbot-reported bug "KASAN: use-after-free Read in
get_work_pool"?  If so, please add:

Reported-by: syzbot+ea75c0ffcd353d32515f064aaebefc5279e6161e@...kaller.appspotmail.com