]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/komeda: Fix bit check to import to value of proper type
authorCarsten Haitzler <carsten.haitzler@arm.com>
Fri, 18 Dec 2020 15:08:12 +0000 (15:08 +0000)
committerLiviu Dudau <liviu.dudau@arm.com>
Fri, 18 Dec 2020 16:36:00 +0000 (16:36 +0000)
commitbe3e477effba636ad25dcd244db264c6cd5c1f36
tree51d6206b6d4d409449e3ba1932766952d75612bb
parenta24cf238c771a1d3f0dc68b9f2b62c6d23359026
drm/komeda: Fix bit check to import to value of proper type

KASAN found this problem. find_first_bit() expects to look at a
pointer pointing to a long, but we look at a u32 - this is going to be
an issue with endianness but, KSAN already flags this as out-of-bounds
stack reads. This fixes it by just importing inot a local long.

Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201218150812.68195-1-carsten.haitzler@foss.arm.com
drivers/gpu/drm/arm/display/komeda/komeda_pipeline.c