]> git.baikalelectronics.ru Git - kernel.git/commit
[media] si2168: Bounds check firmware
authorLaura Abbott <labbott@fedoraproject.org>
Wed, 30 Sep 2015 00:10:09 +0000 (21:10 -0300)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>
Thu, 22 Oct 2015 17:48:25 +0000 (15:48 -0200)
commit134f2cb91e407d908d0b8449ac7fb36666b9c369
treeaae0581364c14f1252d1287fc96fb65e74f8a6dc
parent7510ebcc2bae7d2064f274ab66dc170e673507ce
[media] si2168: Bounds check firmware

When reading the firmware and sending commands, the length must
be bounds checked to avoid overrunning the size of the command
buffer and smashing the stack if the firmware is not in the expected
format:

si2168 11-0064: found a 'Silicon Labs Si2168-B40'
si2168 11-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
si2168 11-0064: firmware download failed -95
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffffa085708f

Add the proper check.

Cc: stable@kernel.org
Reported-by: Stuart Auchterlonie <sauchter@redhat.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
drivers/media/dvb-frontends/si2168.c