netdev - Re: [PATCH 1/2] sock_diag: Fix out-of-bounds access to sock_diag

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Message-ID: <1361640939.6781.3.camel@edumazet-glaptop>
Date:	Sat, 23 Feb 2013 09:35:39 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Mathias Krause <minipli@...glemail.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Dave Jones <davej@...hat.com>
Subject: Re: [PATCH 1/2] sock_diag: Fix out-of-bounds access to
 sock_diag_handlers[]

On Sat, 2013-02-23 at 12:13 +0100, Mathias Krause wrote:
> Userland can send a netlink message requesting SOCK_DIAG_BY_FAMILY
> with a family greater or equal then AF_MAX -- the array size of
> sock_diag_handlers[]. The current code does not test for this
> condition therefore is vulnerable to an out-of-bound access opening
> doors for a privilege escalation.
> 
> Signed-off-by: Mathias Krause <minipli@...glemail.com>
> ---
>  net/core/sock_diag.c |    3 +++
>  1 file changed, 3 insertions(+)

Thanks for fixing this.

It seems trinity didnt catch it !

Acked-by: Eric Dumazet <edumazet@...gle.com>


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