[Ffmpeg-cvslog] r5530 - in trunk/libavcodec: vc1.c vc1acdata.hvc1data.h

Nico Sabbi nsabbi
Wed Jun 28 14:41:37 CEST 2006

Erik Slagter wrote:
>> also please be carefull with malloc(x*y) code if the result of the 
>> multiplication doesnt fit in an int then this can under some curcumstances
>> be exploitable
> This one was indeed brought under my attention lately. What is the
> agreed best practise to avoid these exploits? The only thing I can come
> up with, is testing x and y to have values that multiplied together
> never can grow beyond 32 (or 64) bits.

look at realloc_struct()  in libmpdemux/demuxer.h (part of mplayer)
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