linux-kernel - Re: [PATCH] bridge: netfilter: fix information leak

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Date:	Mon, 14 Feb 2011 16:50:31 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Vasiliy Kulikov <segoon@...nwall.com>
CC:	linux-kernel@...r.kernel.org, security@...nel.org,
	Bart De Schuymer <bart.de.schuymer@...dora.be>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	ebtables-user@...ts.sourceforge.net,
	ebtables-devel@...ts.sourceforge.net,
	netfilter-devel@...r.kernel.org, netfilter@...r.kernel.org,
	coreteam@...filter.org, bridge@...ts.linux-foundation.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] bridge: netfilter: fix information leak

Am 14.02.2011 11:54, schrieb Vasiliy Kulikov:
> Struct tmp is copied from userspace.  It is not checked whether the "name"
> field is NULL terminated.  This may lead to buffer overflow and passing
> contents of kernel stack as a module name to try_then_request_module() and,
> consequently, to modprobe commandline.  It would be seen by all userspace
> processes.
> 
> Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>

Applied, thanks Vasiliy.
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