[FFmpeg-devel] [PATCH] libavfilter/scale2ref: Fix out-of-bounds array access

[Michael Niedermayer]

On Sat, Jun 03, 2017 at 05:04:19AM -0400, Kevin Mark wrote:
> ff_scale_eval_dimensions blindly assumes that two inputs are always
> available as of 3385989b98be7940044e4f0a6b431a0a00abf2fa. This is
> notably not the case when the function is called for the scale
> filter. With the scale filter inputs[1] does not exist.
> 
> ff_scale_eval_dimensions now has an updated scale2ref check that
> makes certain two inputs are actually available before attempting to
> access the second one.
> 
> Thanks to James Almer for reporting this bug. This should fix the 820
> Valgrind tests I single-handedly managed to break.
> 
> Signed-off-by: Kevin Mark <kmark937 at gmail.com>
> ---
>  libavfilter/scale.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

applied

thx

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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