Andrey Ryabinin c074d39c84 drm/atomic: fix out of bounds read in for_each_*_in_state helpers ...

commit 60f207a5b6 upstream.

for_each_*_in_state validate array index after
access to array elements, thus perform out of bounds read.

Fix this by validating index in the first place and read
array element iff validation was successful.

Fixes: df63b9994e ("drm/atomic: Add for_each_{connector,crtc,plane}_in_state helper macros")
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-08-03 09:29:08 -07:00

4.0 KiB

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