Files
android_kernel_fxtec_sm6115/drivers/gpu/drm/amd/amdgpu
Alysa Liu 563e2caeab drm/amdgpu: Fix use-after-free race in VM acquire
commit 2c1030f2e84885cc58bffef6af67d5b9d2e7098f upstream.

Replace non-atomic vm->process_info assignment with cmpxchg()
to prevent race when parent/child processes sharing a drm_file
both try to acquire the same VM after fork().

Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alysa Liu <Alysa.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>
2026-05-07 10:55:17 +02:00
..