Norbert Slusarek c297559a2a can: bcm: fix infoleak in struct bcm_msg_head ... commit 5e87ddbe39 upstream. 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: ffd980f976 ("[CAN]: Add broadcast manager (bcm) protocol") Link: https://lore.kernel.org/r/trinity-7c1b2e82-e34f-4885-8060-2cd7a13769ce-1623532166177@3c-app-gmx-bs52 Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Norbert Slusarek <nslusarek@gmx.net> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-06-23 14:41:28 +02:00
..
j1939	net: introduce CAN specific pointer in the struct net_device	2021-04-07 14:47:41 +02:00
af_can.c	net: introduce CAN specific pointer in the struct net_device	2021-04-07 14:47:41 +02:00
af_can.h	can: introduce CAN midlayer private and allocate it automatically	2019-09-04 13:29:14 +02:00
bcm.c	can: bcm: fix infoleak in struct bcm_msg_head	2021-06-23 14:41:28 +02:00
gw.c	can: gw: add support for CAN FD frames	2019-08-13 17:32:21 +02:00
Kconfig	can: add support of SAE J1939 protocol	2019-09-04 14:22:33 +02:00
Makefile	can: add support of SAE J1939 protocol	2019-09-04 14:22:33 +02:00
proc.c	net: introduce CAN specific pointer in the struct net_device	2021-04-07 14:47:41 +02:00
raw.c	can: bcm/raw: fix msg_namelen values depending on CAN_REQUIRED_SIZE	2021-04-14 08:24:14 +02:00