netdev - Re: [PATCH net] sock_diag: fix use-after-free read in __sk

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Message-Id: <20180518.134838.419746174150358098.davem@davemloft.net>
Date:   Fri, 18 May 2018 13:48:38 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com, kraig@...gle.com
Subject: Re: [PATCH net] sock_diag: fix use-after-free read in __sk_free

From: Eric Dumazet <edumazet@...gle.com>
Date: Fri, 18 May 2018 04:47:55 -0700

> We must not call sock_diag_has_destroy_listeners(sk) on a socket
> that has no reference on net structure.
 ...
> Fixes: b922622ec6ef ("sock_diag: don't broadcast kernel sockets")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Craig Gallek <kraig@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied and queued up for -stable, thanks Eric.