linux-kernel - Re: [PATCH 1/3] net: ax25: fix information leak to userland

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Message-ID: <20101031180005.GA26588@linux-mips.org>
Date:	Sun, 31 Oct 2010 18:00:06 +0000
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Vasiliy Kulikov <segooon@...il.com>
Cc:	kernel-janitors@...r.kernel.org, Joerg Reuter <jreuter@...na.de>,
	"David S. Miller" <davem@...emloft.net>,
	linux-hams@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] net: ax25: fix information leak to userland

On Sun, Oct 31, 2010 at 08:10:22PM +0300, Vasiliy Kulikov wrote:

> Sometimes ax25_getname() doesn't initialize all members of fsa_digipeater
> field of fsa struct.  This structure is then copied to userland.  It leads to
> leaking of contents of kernel stack memory.  We have to initialize them to zero.
> 
> Signed-off-by: Vasiliy Kulikov <segooon@...il.com>

Acked-by: Ralf Baechle <ralf@...ux-mips.org>

  Ralf
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