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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-13 20:34:45 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-14 23:32:27 +0300 |
| commit | 6bc265424df02f8162f4a17a37e4982e1c64460e (patch) | |
| tree | ca46f09572b65fcdaf305a0d7022757d7bab0d66 /drivers/gpu/drm/i915/i915_gem_context.c | |
| parent | 0b8c0e9c3354953a5d6f90ece82961017053dc74 (diff) | |
| download | linux-6bc265424df02f8162f4a17a37e4982e1c64460e.tar.xz | |
drm/i915/fbdev: Check for the framebuffer before use
If the fbdev probing fails, and in our error path we fail to clear the
dev_priv->fbdev, then we can try and use a dangling fbdev pointer, and
in particular a NULL fb. This could also happen in pathological cases
where we try to operate on the fbdev prior to it being probed.
Reported-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1468431285-28264-2-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.c')
0 files changed, 0 insertions, 0 deletions