Tong Zhang 644d0a5bcc can: c_can: fix null-ptr-deref on ioctl() ... The pdev maybe not a platform device, e.g. c_can_pci device, in this case, calling to_platform_device() would not make sense. Also, per the comment in drivers/net/can/c_can/c_can_ethtool.c, @bus_info should match dev_name() string, so I am replacing this with dev_name() to fix this issue. [ 1.458583] BUG: unable to handle page fault for address: 0000000100000000 [ 1.460921] RIP: 0010:strnlen+0x1a/0x30 [ 1.466336] ? c_can_get_drvinfo+0x65/0xb0 [c_can] [ 1.466597] ethtool_get_drvinfo+0xae/0x360 [ 1.466826] dev_ethtool+0x10f8/0x2970 [ 1.467880] sock_ioctl+0xef/0x300 Fixes: 2722ac986e ("can: c_can: add ethtool support") Link: https://lore.kernel.org/r/20210906233704.1162666-1-ztong0001@gmail.com Cc: stable@vger.kernel.org # 5.14+ Signed-off-by: Tong Zhang <ztong0001@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2021-09-07 08:46:58 +02:00
..
c_can.h	can: c_can: cache frames to operate as a true FIFO	2021-08-19 15:07:06 +02:00
c_can_ethtool.c	can: c_can: fix null-ptr-deref on ioctl()	2021-09-07 08:46:58 +02:00
c_can_main.c	can: c_can: cache frames to operate as a true FIFO	2021-08-19 15:07:06 +02:00
c_can_pci.c	can: c_can: add support to 64 message objects	2021-03-30 11:14:53 +02:00
c_can_platform.c	can: c_can: remove struct c_can_priv::priv field	2021-08-19 15:07:05 +02:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	can: c_can: add ethtool support	2021-05-27 09:42:23 +02:00