kernel_samsung_a53x/drivers/media
Mauro Carvalho Chehab 5be6663698 media: v4l2-tpg: prevent the risk of a division by zero
commit e6a3ea83fbe15d4818d01804e904cbb0e64e543b upstream.

As reported by Coverity, the logic at tpg_precalculate_line()
blindly rescales the buffer even when scaled_witdh is equal to
zero. If this ever happens, this will cause a division by zero.

Instead, add a WARN_ON_ONCE() to trigger such cases and return
without doing any precalculation.

Fixes: 63881df94d3e ("[media] vivid: add the Test Pattern Generator")
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-30 02:33:23 +01:00
..
cec media: pulse8-cec: fix data timestamp at pulse8_setup() 2024-11-30 02:33:23 +01:00
common media: v4l2-tpg: prevent the risk of a division by zero 2024-11-30 02:33:23 +01:00
dvb-core media: dvb_frontend: don't play tricks with underflow values 2024-11-30 02:33:23 +01:00
dvb-frontends media: cx24116: prevent overflows on SNR calculus 2024-11-30 02:33:23 +01:00
firewire Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
i2c media: adv7604: prevent underflow condition when reporting colorspace 2024-11-30 02:33:23 +01:00
mc media: mc: mark the media devnode as registered from the, start 2024-11-19 12:27:17 +01:00
mmc
pci Revert "media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)" 2024-11-24 00:23:52 +01:00
platform media: s5p-jpeg: prevent buffer overflows 2024-11-30 02:33:23 +01:00
radio media: radio-isa: use dev_name to fill in bus_info 2024-11-23 23:20:44 +01:00
rc lirc: rc_dev_get_from_fd(): fix file leak 2024-11-23 23:20:18 +01:00
spi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
test-drivers Revert "media: vivid: fix wrong sizeimage value for mplane" 2024-11-24 00:23:43 +01:00
tuners media: xc4000: Fix atomicity violation in xc4000_get_frequency 2024-11-19 09:22:15 +01:00
usb Revert "media: uvcvideo: Use entity get_cur in uvc_ctrl_set" 2024-11-24 00:23:54 +01:00
v4l2-core media: v4l2-core: hold videodev_lock until dev reg, finishes 2024-11-19 12:27:17 +01:00
Kconfig
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00