linux/drivers/media
Mauro Carvalho Chehab 1a10d7fdb6 media: uvc: don't do DMA on stack
As warned by smatch:
	drivers/media/usb/uvc/uvc_v4l2.c:911 uvc_ioctl_g_input() error: doing dma on the stack (&i)
	drivers/media/usb/uvc/uvc_v4l2.c:943 uvc_ioctl_s_input() error: doing dma on the stack (&i)

those two functions call uvc_query_ctrl passing a pointer to
a data at the DMA stack. those are used to send URBs via
usb_control_msg(). Using DMA stack is not supported and should
not work anymore on modern Linux versions.

So, use a kmalloc'ed buffer.

Cc: stable@vger.kernel.org	# Kernel 4.9 and upper
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-07-12 09:16:31 +02:00
..
cec media: s5p: fix pm_runtime_get_sync() usage count 2021-05-10 11:36:33 +02:00
common Merge branch 'akpm' (patches from Andrew) 2021-06-29 17:29:11 -07:00
dvb-core media: dvb-core: frontend: make GET/SET safer 2021-06-17 09:29:11 +02:00
dvb-frontends media: dib8000: rewrite the init prbs logic 2021-07-12 09:16:30 +02:00
firewire module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
i2c media: i2c: rdacm20: Re-work ov10635 reset 2021-06-17 12:08:55 +02:00
mc media: Fix Media Controller API config checks 2021-06-24 14:26:00 +02:00
mmc media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
pci media: pci: cx88: switch from 'pci_' to 'dma_' API 2021-06-17 10:24:41 +02:00
platform media: sti: don't copy past the size 2021-07-12 09:16:31 +02:00
radio media: radio: si4713: constify static struct v4l2_ioctl_ops 2021-06-02 13:26:11 +02:00
rc Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
spi media: cxd2880-spi: Fix some error messages 2021-06-08 15:51:35 +02:00
test-drivers media: v4l2-subdev: add subdev-wide state struct 2021-06-17 10:01:27 +02:00
tuners media: m88rs6000t: avoid potential out-of-bounds reads on arrays 2021-03-22 17:41:39 +01:00
usb media: uvc: don't do DMA on stack 2021-07-12 09:16:31 +02:00
v4l2-core media: v4l2-event: Modified variable type 'unsigned' to 'unsigned int' 2021-06-17 10:22:59 +02:00
Kconfig media: Correct 'so' 2021-03-22 11:52:09 +01:00
Makefile media: media/test_drivers: rename to test-drivers 2020-04-16 10:38:31 +02:00