Chen-Yu Tsai 6def3a5ed8 BACKPORT: media: v4l2-mem2mem: Apply DST_QUEUE_OFF_BASE on MMAP buffers across ioctls ... [ Upstream commit 8310ca9407 ] DST_QUEUE_OFF_BASE is applied to offset/mem_offset on MMAP capture buffers only for the VIDIOC_QUERYBUF ioctl, while the userspace fields (including offset/mem_offset) are filled in for VIDIOC_{QUERY,PREPARE,Q,DQ}BUF ioctls. This leads to differences in the values presented to userspace. If userspace attempts to mmap the capture buffer directly using values from DQBUF, it will fail. Move the code that applies the magic offset into a helper, and call that helper from all four ioctl entry points. [hverkuil: drop unnecessary '= 0' in v4l2_m2m_querybuf() for ret] Bug: 223375145 Fixes: 7f98639def ("V4L/DVB: add memory-to-memory device helper framework for videobuf") Fixes: 908a0d7c58 ("[media] v4l: mem2mem: port to videobuf2") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Change-Id: Ifab9933f85f4ba7e0fadddf52debaf837830a06d		2022-04-22 07:38:57 +00:00
..
cec	media: cec-pin: fix interrupt en/disable handling	2022-01-27 10:53:43 +01:00
common	media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach()	2022-01-27 10:54:16 +01:00
dvb-core	media: dmxdev: fix UAF when dvb_register_device() fails	2022-01-27 10:53:49 +01:00
dvb-frontends	media: dib8000: Fix a memleak in dib8000_init()	2022-01-27 10:53:54 +01:00
firewire	media: firewire: firedtv-avc: fix a buffer overflow in avc_ca_pmt()	2021-11-06 14:10:09 +01:00
i2c	This is the 5.10.80 stable release	2021-11-19 11:50:41 +01:00
mc	Merge branch 'android12-5.10' into android12-5.10-lts	2021-07-22 13:32:27 +02:00
mmc
pci	This is the 5.10.94 stable release	2022-01-27 11:49:22 +01:00
platform	This is the 5.10.96 stable release	2022-02-07 11:17:58 +01:00
radio	media: si470x-i2c: fix possible memory leak in si470x_i2c_probe()	2022-01-27 10:53:51 +01:00
rc	media: igorplugusb: receiver overflow should be reported	2022-01-27 10:54:16 +01:00
spi	media: cxd2880-spi: Fix a null pointer dereference on error handling path	2021-11-18 14:04:04 +01:00
test-drivers
tuners	media: msi001: fix possible null-ptr-deref in msi001_probe()	2022-01-27 10:53:56 +01:00
usb	media: m920x: don't use stack on USB reads	2022-01-27 10:54:14 +01:00
v4l2-core	BACKPORT: media: v4l2-mem2mem: Apply DST_QUEUE_OFF_BASE on MMAP buffers across ioctls	2022-04-22 07:38:57 +00:00
Kconfig	This is the 5.10.94 stable release	2022-01-27 11:49:22 +01:00
Makefile