On 12.06.2021 23:09:26, Norbert Slusarek wrote:
> From: Norbert Slusarek <nslusarek@xxxxxxx>
> Date: Sat, 12 Jun 2021 22:18:54 +0200
> Subject: [PATCH] can: bcm: fix infoleak in struct bcm_msg_head
>
> On 64-bit systems, struct bcm_msg_head has an added padding of 4 bytes between
> struct members count and ival1. Even though all struct members are initialized,
> the 4-byte hole will contain data from the kernel stack. This patch zeroes out
> struct bcm_msg_head before usage, preventing infoleaks to userspace.
>
> Fixes: ffd980f976e7 ("[CAN]: Add broadcast manager (bcm) protocol")
> Signed-off-by: Norbert Slusarek <nslusarek@xxxxxxx>
Added to linux-can/testing.
regards,
Marc
P.S.: I think the gmx web interface mangled the patch and converted tabs
to spaces. Try to use git send-mail to avoid this.
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
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