linux-kernel - Re: [PATCH 2/2] can: xilinx_can: Fix usage of skb memory

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 for Android: free password hash cracker in your pocket

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

Message-ID: <30572daa-1c75-37a2-20f5-c1f818acc603@pengutronix.de>
Date:   Wed, 20 Nov 2019 13:37:32 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Srinivas Neeli <srinivas.neeli@...inx.com>, wg@...ndegger.com,
        davem@...emloft.net, michal.simek@...inx.com, appanad@...inx.com
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        git@...inx.com, nagasure@...inx.com
Subject: Re: [PATCH 2/2] can: xilinx_can: Fix usage of skb memory

On 11/20/19 1:11 PM, Srinivas Neeli wrote:
> As per linux can framework, driver not allowed to touch the skb memory
> after can_put_echo_skb() call.
> This patch fixes the same.
> https://www.spinics.net/lists/linux-can/msg02199.html

NACK.

Don't make a copy of the CAN frame, move the can_put_echo_skb() after
you don't need the skb anymore.

Marc

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



Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)