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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-22 17:02:11 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-07-04 13:14:55 +0100 |
| commit | 15727ed0d944ce1dec8b9e1082dd3df29a0fdf44 (patch) | |
| tree | 19636265efd71506af834012a1887c32a5458c16 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | drm/i915: Fix use-after-free of context during free_contexts (diff) | |
| download | linux-dev-15727ed0d944ce1dec8b9e1082dd3df29a0fdf44.tar.xz linux-dev-15727ed0d944ce1dec8b9e1082dd3df29a0fdf44.zip | |
drm/i915/fbdev: Check for existence of ifbdev->vma before operations
Commit fabef825626d ("drm/i915: Drop struct_mutex around frontbuffer
flushes") adds a dependency to ifbdev->vma when flushing the framebufer,
but the checks are only against the existence of the ifbdev->fb and not
against ifbdev->vma. This leaves a window of opportunity where we may
try to operate on the fbdev prior to it being probed (thanks to
asynchronous booting).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101534
Fixes: fabef825626d ("drm/i915: Drop struct_mutex around frontbuffer flushes")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170622160211.783-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions