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Harry Wentland 9556c16767 drm/vkms: Avoid reading beyond LUT array

[ Upstream commit 2fee84030d ]

When the floor LUT index (drm_fixp2int(lut_index) is the last
index of the array the ceil LUT index will point to an entry
beyond the array. Make sure we guard against it and use the
value of the floor LUT index.

v3:
 - Drop bits from commit description that didn't contribute
   anything of value

Fixes: db1f254f2c ("drm/vkms: Add support to 1D gamma LUT")
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231108163647.106853-6-harry.wentland@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-03-26 18:19:42 -04:00

Makefile

…

vkms_composer.c

drm/vkms: Avoid reading beyond LUT array

2024-03-26 18:19:42 -04:00

vkms_crtc.c

Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic commit"

2023-09-14 07:48:19 -03:00

vkms_drv.c

drm/vkms: Add support to 1D gamma LUT

2023-07-27 20:17:14 -03:00