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fix segfault with lol-ffplay2.mpg (dunno if this is exploitable, probably not easily) 

Originally committed as revision 7889 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-02-09 02:21:34 +00:00
parent f7a49547de
commit 960964f5a9
1 changed files with 4 additions and 0 deletions
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4
libavcodec/mpeg12.c
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@ -2593,6 +2593,10 @@ static int mpeg_decode_slice(Mpeg1Context *s1, int mb_y,
break;
}
}
if(s->mb_x >= (unsigned)s->mb_width){
av_log(s->avctx, AV_LOG_ERROR, "initial skip overflow\n");
return -1;
}
s->resync_mb_x= s->mb_x;
s->resync_mb_y= s->mb_y= mb_y;