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

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Message-ID: <20160407180400.2nvxfaf26q4buag3@treble.redhat.com>
Date:	Thu, 7 Apr 2016 13:04:00 -0500
From:	Josh Poimboeuf <jpoimboe@...hat.com>
To:	Jiri Kosina <jikos@...nel.org>
Cc:	Dan Carpenter <dan.carpenter@...cle.com>, jeyu@...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, Apr 07, 2016 at 06:06:25PM +0200, 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>
> Signed-off-by: Jiri Kosina <jkosina@...e.cz>

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


-- 
Josh