linux/drivers/media/common
Marek Szyprowski a6a493b985 media: videobuf2: forbid remove_bufs when legacy fileio is active
commit 27afd6e066 upstream.

vb2_ioctl_remove_bufs() call manipulates queue internal buffer list,
potentially overwriting some pointers used by the legacy fileio access
mode. Forbid that ioctl when fileio is active to protect internal queue
state between subsequent read/write calls.

CC: stable@vger.kernel.org
Fixes: a3293a8538 ("media: v4l2: Add REMOVE_BUFS ioctl")
Reported-by: Shuangpeng Bai <SJB7183@psu.edu>
Closes: https://lore.kernel.org/linux-media/5317B590-AAB4-4F17-8EA1-621965886D49@psu.edu/
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-11-13 15:34:36 -05:00
..
b2c2 media: b2c2: flexcop: Convert to SPDX identifier 2021-12-07 11:29:58 +01:00
saa7146 media: common: saa7146: Use min macro 2024-05-03 11:11:57 +01:00
siano media: siano: Fix error handling in smsdvb_module_init() 2025-04-20 10:15:33 +02:00
v4l2-tpg media: v4l2-tpg: prevent the risk of a division by zero 2024-10-18 10:43:03 +02:00
videobuf2 media: videobuf2: forbid remove_bufs when legacy fileio is active 2025-11-13 15:34:36 -05:00
cx2341x.c media: Rename stateful codec control macros 2020-12-03 12:27:32 +01:00
cypress_firmware.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
cypress_firmware.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig media updates for v6.3-rc1 2023-02-26 11:47:26 -08:00
Makefile media updates for v6.3-rc1 2023-02-26 11:47:26 -08:00
ttpci-eeprom.c media: move ttpci-eeprom to common 2021-06-02 11:16:15 +02:00
ttpci-eeprom.h media: move ttpci-eeprom to common 2021-06-02 11:16:15 +02:00
tveeprom.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
uvc.c usb: uvc: add missing MODULE_DESCRIPTION() macro 2024-06-29 12:20:05 +02:00