diff options
| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2013-11-29 09:15:00 +0100 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2013-11-29 17:37:59 +0100 |
| commit | 01f6df01b6fdc2d71b82370374cde4bf102928c7 (patch) | |
| tree | 624656c80fe3ff82212c52c9cb0643a5868c5ca6 | |
| parent | e026ee0446de27fc38e33e98704fada012fdc763 (diff) | |
go2meeting: disallow tile dimensions that are not multiple of 16
Original decoder seems to always use 176x128 tiles anyway and this helps
avoiding lots of issues with odd tile sizes in fuzzed files.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
| -rw-r--r-- | libavcodec/g2meet.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/g2meet.c b/libavcodec/g2meet.c index 0b4a8b718f..ad27c573f9 100644 --- a/libavcodec/g2meet.c +++ b/libavcodec/g2meet.c @@ -712,7 +712,8 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data, } c->tile_width = bytestream2_get_be32(&bc); c->tile_height = bytestream2_get_be32(&bc); - if (!c->tile_width || !c->tile_height) { + if (!c->tile_width || !c->tile_height || + ((c->tile_width | c->tile_height) & 0xF)) { av_log(avctx, AV_LOG_ERROR, "Invalid tile dimensions %dx%d\n", c->tile_width, c->tile_height); |