linux-kernel - Re: [PATCH 1/5] can: kvaser_usb: Avoid double free on URB submission failures

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]

Date:	Wed, 04 Mar 2015 10:15:45 +0100
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	"Ahmed S. Darwish" <darwish.07@...il.com>,
	Olivier Sobrie <olivier@...rie.be>,
	Oliver Hartkopp <socketcan@...tkopp.net>,
	Wolfgang Grandegger <wg@...ndegger.com>,
	Andri Yngvason <andri.yngvason@...el.com>
CC:	Linux-CAN <linux-can@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/5] can: kvaser_usb: Avoid double free on URB
 submission failures

On 02/26/2015 04:20 PM, Ahmed S. Darwish wrote:
> From: Ahmed S. Darwish <ahmed.darwish@...eo.com>
> 
> Upon a URB submission failure, the driver calls usb_free_urb()
> but then manually frees the URB buffer by itself.  Meanwhile
> usb_free_urb() has alredy freed out that transfer buffer since
> we're the only code path holding a reference to this URB.
> 
> Remove two of such invalid manual free().
> 
> Signed-off-by: Ahmed S. Darwish <ahmed.darwish@...eo.com>

Applied 1+2 and added stable on Cc. Can you please shuffle the remaining
patches, so that patch 5 comes first, then 4 and 3 as the last patch. As
5 is a bugfix it should go into stable, while 3 isn't.

You can base your series on the can/testing branch.

Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)