linux-kernel - Re: [PATCH] livepatch: robustify klp_register

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Message-ID: <alpine.LNX.2.00.1604072232120.27368@cbobk.fhfr.pm>
Date:	Thu, 7 Apr 2016 22:33:13 +0200 (CEST)
From:	Jiri Kosina <jikos@...nel.org>
To:	Dan Carpenter <dan.carpenter@...cle.com>
cc:	jeyu@...hat.com, Josh Poimboeuf <jpoimboe@...hat.com>,
	Miroslav Benes <mbenes@...e.cz>,
	Petr Mladek <pmladek@...e.com>, live-patching@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] livepatch: robustify klp_register_patch() API error
 checking

On Thu, 7 Apr 2016, Jiri Kosina wrote:

> From: Jiri Kosina <jkosina@...e.cz>
> 
> Commit 425595a7fc20 ("livepatch: reuse module loader code to write 
> relocations") adds a possibility of dereferncing pointers supplied by the 
> consumer of the livepatch API before sanity (NULL) checking them (patch 
> and patch->mod).
> 
> Spotted by smatch tool.
> 
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>

Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>
Acked-by: Jessica Yu <jeyu@...hat.com>

Pushed out. Thanks,	

-- 
Jiri Kosina
SUSE Labs