[libav-stable] mpeg12: check scantable indices in all decode_block functions

Diego Biurrun diego at biurrun.de
Tue Mar 11 13:44:51 CET 2014


On 2014-03-01 01:02, Reinhard Tartler wrote:
> Hi Diego,
>
> Since mpeg12 was split apart, I'm having a hard time with backporting
> the patch below. Could you please give me a hand with this and take
> over?
>
> On Sat, Jan 25, 2014 at 4:32 PM, Janne Grunau <git at libav.org> wrote:
>> Module: libav
>> Branch: master
>> Commit: 6d93307f8df81808f0dcdbc064b848054a6e83b3
>>
>> Author:    Janne Grunau <janne-libav at jannau.net>
>> Committer: Janne Grunau <janne-libav at jannau.net>
>> Date:      Fri Jan 24 16:22:44 2014 +0100
>>
>> mpeg12: check scantable indices in all decode_block functions
>>
>> Add checks to the fast functions used with CODEC_FLAGS2_FAST and move
>> the check for all other functions to before the invalid memory is
>> accessed. Fixes https://trac.videolan.org/vlc/ticket/9713 with
>> CODEC_FLAGS2_FAST.
>>
>> CC: libav-stable at libav.org

It seems to me this was backported as 
6d93307f8df81808f0dcdbc064b848054a6e83b3.

Diego


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