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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20180129.175734.1585150462343146590.davem@davemloft.net>
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.