linux-kernel - Re: [PATCH 1/2] ima: check xattr value length in ima_inode

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Message-ID: <alpine.LRH.2.11.1410241355020.30398@namei.org>
Date:	Fri, 24 Oct 2014 13:55:27 +1100 (AEDT)
From:	James Morris <jmorris@...ei.org>
To:	Dmitry Kasatkin <d.kasatkin@...sung.com>
cc:	zohar@...ux.vnet.ibm.com, linux-security-module@...r.kernel.org,
	linux-ima-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, jack@...e.cz,
	dmitry.kasatkin@...il.com
Subject: Re: [PATCH 1/2] ima: check xattr value length in
 ima_inode_setxattr()

On Thu, 23 Oct 2014, Dmitry Kasatkin wrote:

> ima_inode_setxattr() can be called with no value. Function does not
> check the length so that following command can be used to produce
> kernel oops: setfattr -n security.ima FOO. This patch fixes it.

I'd like to see more review/acks on this before sending it to Linus.

Mimi?


-- 
James Morris
<jmorris@...ei.org>

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