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Date: Tue, 16 Jun 2015 12:23:44 +0200
From: Pablo Neira Ayuso <pablo@...filter.org>
To: lizf@...nel.org
Cc: stable@...r.kernel.org, linux-kernel@...r.kernel.org,
Eric Dumazet <edumazet@...gle.com>,
Zefan Li <lizefan@...wei.com>
Subject: Re: [PATCH 3.4 051/172] netfilter: xt_socket: fix a stack corruption
bug
On Tue, Jun 16, 2015 at 04:35:05PM +0800, lizf@...nel.org wrote:
> From: Eric Dumazet <edumazet@...gle.com>
>
> 3.4.108-rc1 review patch. If anyone has any objections, please let me know.
>
> ------------------
>
>
> commit 78296c97ca1fd3b104f12e1f1fbc06c46635990b upstream.
>
> As soon as extract_icmp6_fields() returns, its local storage (automatic
> variables) is deallocated and can be overwritten.
>
> Lets add an additional parameter to make sure storage is valid long
> enough.
>
> While we are at it, adds some const qualifiers.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Fixes: b64c9256a9b76 ("tproxy: added IPv6 support to the socket match")
> Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
> [lizf: Backported to 3.4: adjust context]
> Signed-off-by: Zefan Li <lizefan@...wei.com>
Thanks for backporting this for 3.4.
Acked-by: Pablo Neira Ayuso <pablo@...filter.org>
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