netdev - Re: [PATCH] tcp: release sk_frag.page in tcp

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Date:   Mon, 29 Jan 2018 17:57:34 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     lirongqing@...du.com
Cc:     netdev@...r.kernel.org, edumazet@...gle.com
Subject: Re: [PATCH] tcp: release sk_frag.page in tcp_disconnect

From: Li RongQing <lirongqing@...du.com>
Date: Fri, 26 Jan 2018 16:40:41 +0800

> socket can be disconnected and gets transformed back to a listening
> socket, if sk_frag.page is not released, which will be cloned into
> a new socket by sk_clone_lock, but the reference count of this page
> is increased, lead to a use after free or double free issue
> 
> Signed-off-by: Li RongQing <lirongqing@...du.com>
> Cc: Eric Dumazet <edumazet@...gle.com>

Applied and queued up for -stable, thank you.