drm/i915: Validate VBT header before trusting it

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Be we read and chase pointers from the VBT, it is prudent to make sure
that those accesses are wholly contained within the MMIO region, or else
we may cause a kernel panic during boot.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Chris Wilson 2014-04-18 18:04:22 -03:00 • committed by Daniel Vetter

parent d1f13fd261

commit 3dd4e84604

1 changed files with 50 additions and 18 deletions

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drivers/gpu/drm/i915/intel_bios.c

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