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handle invalid buffer sizes

Originally committed as revision 2734 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Mike Melanson 2004-01-31 18:17:38 +00:00
parent 155aa4174d
commit 18a508c527

View File

@ -900,6 +900,11 @@ static int ipvideo_decode_frame(AVCodecContext *avctx,
IpvideoContext *s = avctx->priv_data;
AVPaletteControl *palette_control = avctx->palctrl;
/* compressed buffer needs to be large enough to at least hold an entire
* decoding map */
if (buf_size < s->decoding_map_size)
return buf_size;
s->decoding_map = buf;
s->buf = buf + s->decoding_map_size;
s->size = buf_size - s->decoding_map_size;