netdev - Re: [PATCH][V2] net/ethoc: fix null dereference on error exit path

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20160601212537.GA14527@octofox.metropolis>
Date:	Thu, 2 Jun 2016 00:25:37 +0300
From:	Max Filippov <jcmvbkbc@...il.com>
To:	Colin King <colin.king@...onical.com>
Cc:	"David S . Miller" <davem@...emloft.net>,
	Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	Tobias Klauser <tklauser@...tanz.ch>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH][V2] net/ethoc: fix null dereference on error exit path

On Wed, Jun 01, 2016 at 02:16:50PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> priv is assigned to NULL however some of the early error exit paths to
> label 'free' dereference priv, causing a null pointer dereference.
> 
> Move the label 'free' to just the free_netdev statement, and add a new
> exit path 'free2' for the error cases were clk_disable_unprepare needs
> calling before the final free.
> 
> Fixes issue found by CoverityScan, CID#113260
> 
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/net/ethernet/ethoc.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)

Reviewed-by: Max Filippov <jcmvbkbc@...il.com>

-- 
Thanks.
-- Max