Colin Ian King 0c205c3d7d drm/radeon: fix copy of uninitialized variable back to userspace ...

commit 8dbc2ccac5 upstream.

Currently the ioctl command RADEON_INFO_SI_BACKEND_ENABLED_MASK can
copy back uninitialised data in value_tmp that pointer *value points
to. This can occur when rdev->family is less than CHIP_BONAIRE and
less than CHIP_TAHITI.  Fix this by adding in a missing -EINVAL
so that no invalid value is copied back to userspace.

Addresses-Coverity: ("Uninitialized scalar variable)
Cc: stable@vger.kernel.org # 3.13+
Fixes: 439a1cfffe ("drm/radeon: expose render backend mask to the userspace")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-05-16 11:01:41 +09:00

..

drm

drm/radeon: fix copy of uninitialized variable back to userspace

2023-05-16 11:01:41 +09:00

host1x

gpu: host1x: Detach driver on unregister

2023-05-16 08:29:35 +09:00

ipu-v3

gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers

2023-05-16 08:48:23 +09:00

vga

vgaarbiter: rst-ifiy and polish kerneldoc

2016-08-16 18:49:56 +02:00

Makefile

gpu: host1x: Provide a proper struct bus_type

2015-01-27 10:09:14 +01:00