Johan Hovold a246b4d547 media: xirlink_cit: add missing descriptor sanity checks ... Make sure to check that we have two alternate settings and at least one endpoint before accessing the second altsetting structure and dereferencing the endpoint arrays. This specifically avoids dereferencing NULL-pointers or corrupting memory when a device does not have the expected descriptors. Note that the sanity check in cit_get_packet_size() is not redundant as the driver is mixing looking up altsettings by index and by number, which may not coincide. Fixes: 659fefa0eb ("V4L/DVB: gspca_xirlink_cit: Add support for camera with a bcd version of 0.01") Fixes: 59f8b0bf3c ("V4L/DVB: gspca_xirlink_cit: support bandwidth changing for devices with 1 alt setting") Cc: stable <stable@vger.kernel.org> # 2.6.37 Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>		2020-03-12 17:27:07 +01:00
..
cec	media: cec: remove unused functions	2020-01-08 14:38:06 +01:00
common	media: videobuf2-core: fix dprintk level	2020-03-12 17:21:57 +01:00
dvb-core	media: dvb-core: dvbdev: convert to use i2c_new_client_device()	2020-01-09 15:57:46 +01:00
dvb-frontends	media: tda10071: fix unsigned sign extension overflow	2020-03-12 09:46:45 +01:00
firewire	media: firewire: Make structure fdtv_ca constant	2019-08-21 18:39:55 -03:00
i2c	media: i2c: s5c73m3: Fix number in auto focus cluster	2020-03-12 17:22:13 +01:00
mc	media: mc-entity.c: use WARN_ON, validate link pads	2020-02-24 17:21:58 +01:00
mmc	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pci	media: media/pci: rename VFL_TYPE_GRABBER to _VIDEO	2020-02-24 16:53:50 +01:00
platform	media: am437x-vpfe: exclude illegal values for enum when validing params from user space	2020-03-12 16:26:15 +01:00
radio	media: Fix Kconfig indentation	2020-02-24 15:19:38 +01:00
rc	media: rc: make scancodes 64 bit	2020-03-12 09:20:46 +01:00
spi	media: spi: gs1662: Use new structure for SPI transfer delays	2020-03-05 22:46:25 +01:00
tuners	media: tuners: Use the correct style for SPDX License Identifier	2019-10-24 18:57:55 -03:00
usb	media: xirlink_cit: add missing descriptor sanity checks	2020-03-12 17:27:07 +01:00
v4l2-core	media: v4l2-fwnode: add initial connector parsing support	2020-03-12 16:34:16 +01:00
Kconfig	media: Fix Kconfig indentation	2020-02-24 15:19:38 +01:00
Makefile	media: move drivers/media/media-* to drivers/media/mc/mc-*	2019-05-28 12:15:46 -04:00