diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-08-19 12:05:58 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-30 08:21:47 (GMT) |
| commit | ce66f629ad828168ed13250eaa7d3a60124d753e (patch) | |
| tree | 05218cf918df17f7fb819ded7070946c971fe553 /kernel/cgroup_pids.c | |
| parent | 9d263321d7a2c1cb5c9b226316640d5066047a7a (diff) | |
| download | linux-ce66f629ad828168ed13250eaa7d3a60124d753e.tar.xz | |
drm: Release driver tracking before making the object available again
commit fe4600a548f2763dec91b3b27a1245c370ceee2a upstream.
This is the same bug as we fixed in commit f6cd7daecff5 ("drm: Release
driver references to handle before making it available again"), but now
the exposure is via the PRIME lookup tables. If we remove the
object/handle from the PRIME lut, then a new request for the same
object/fd will generate a new handle, thus for a short window that
object is known to userspace by two different handles. Fix this by
releasing the driver tracking before PRIME.
Fixes: 0ff926c7d4f0 ("drm/prime: add exported buffers to current fprivs
imported buffer list (v2)")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170819120558.6465-1-chris@chris-wilson.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/cgroup_pids.c')
0 files changed, 0 insertions, 0 deletions