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| author | Luca Barbato <lu_zero@gentoo.org> | 2013-08-14 16:57:21 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-08-16 14:56:49 +0200 |
| commit | c59967fa7cc5bc2fa06b36c17d2c207240c06b3e (patch) | |
| tree | a5387060b97bf82c33111f14b9d1d47292ea55d0 /libavcodec/h261dec.c | |
| parent | f399e406af0c8507bb3ab7b94995ad7b8f409093 (diff) | |
| download | ffmpeg-c59967fa7cc5bc2fa06b36c17d2c207240c06b3e.tar.gz | |
h261: check the mtype index
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Diffstat (limited to 'libavcodec/h261dec.c')
| -rw-r--r-- | libavcodec/h261dec.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/h261dec.c b/libavcodec/h261dec.c index 8872c6c2f6..2832c622e8 100644 --- a/libavcodec/h261dec.c +++ b/libavcodec/h261dec.c @@ -376,6 +376,11 @@ static int h261_decode_mb(H261Context *h) // Read mtype h->mtype = get_vlc2(&s->gb, h261_mtype_vlc.table, H261_MTYPE_VLC_BITS, 2); + if (h->mtype < 0 || h->mtype >= FF_ARRAY_ELEMS(ff_h261_mtype_map)) { + av_log(s->avctx, AV_LOG_ERROR, "Invalid mtype index %d\n", + h->mtype); + return SLICE_ERROR; + } h->mtype = ff_h261_mtype_map[h->mtype]; // Read mquant |