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(parent: 5a03159) | patch
drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl
authorMin Li <lm0963hack@gmail.com>
Sat, 3 Jun 2023 07:43:45 +0000 (15:43 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 9 Jun 2023 16:41:08 +0000 (12:41 -0400)
commite6850f98efc70277dc0e941e905182738e7327a0
tree8d0a5d644d8cb621edf6d5714bd6acec1c7914datree | snapshot
parent5a03159ab7ef456ba22460e47a9d0eab2f310424commit | diff
drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl

Userspace can race to free the gobj(robj converted from), robj should not
be accessed again after drm_gem_object_put, otherwith it will result in
use-after-free.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Min Li <lm0963hack@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_gem.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git