linux-kernel - Re: [PATCH] bluetooth: bnep: fix buffer overflow

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Message-ID: <20110214143532.GA2597@joana>
Date:	Mon, 14 Feb 2011 12:35:32 -0200
From:	"Gustavo F. Padovan" <padovan@...fusion.mobi>
To:	Vasiliy Kulikov <segoon@...nwall.com>
Cc:	linux-kernel@...r.kernel.org, security@...nel.org,
	Marcel Holtmann <marcel@...tmann.org>,
	"David S. Miller" <davem@...emloft.net>, Tejun Heo <tj@...nel.org>,
	linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] bluetooth: bnep: fix buffer overflow

Hi Vasiliy,

* Vasiliy Kulikov <segoon@...nwall.com> [2011-02-14 13:54:31 +0300]:

> Struct ca is copied from userspace.  It is not checked whether the "device"
> field is NULL terminated.  This potentially leads to BUG() inside of
> alloc_netdev_mqs() and/or information leak by creating a device with a name
> made of contents of kernel stack.
> 
> Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>
> ---
>  Compile tested.
> 
>  net/bluetooth/bnep/sock.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)

Applied, thanks.

-- 
Gustavo F. Padovan
http://profusion.mobi
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