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| author | Luca Barbato <lu_zero@gentoo.org> | 2013-10-13 03:30:06 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-10-13 17:52:53 +0200 |
| commit | 39185ec4faa9ef33954dbf2394444e045b632673 (patch) | |
| tree | 28edcadd3197ec6f731a12a88126f53643fae1b7 /libavcodec/cavsdec.c | |
| parent | 1b20d0f581f01f2df601c9e68d0d321672d97af7 (diff) | |
| download | ffmpeg-39185ec4faa9ef33954dbf2394444e045b632673.tar.gz | |
cavs: Check for negative cbp
Sample-Id: 00000647-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Diffstat (limited to 'libavcodec/cavsdec.c')
| -rw-r--r-- | libavcodec/cavsdec.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c index 37eb118666..142b844cad 100644 --- a/libavcodec/cavsdec.c +++ b/libavcodec/cavsdec.c @@ -602,8 +602,8 @@ static inline int decode_residual_inter(AVSContext *h) /* get coded block pattern */ int cbp = get_ue_golomb(&h->gb); - if (cbp > 63) { - av_log(h->avctx, AV_LOG_ERROR, "illegal inter cbp\n"); + if (cbp > 63 || cbp < 0) { + av_log(h->avctx, AV_LOG_ERROR, "illegal inter cbp %d\n", cbp); return AVERROR_INVALIDDATA; } h->cbp = cbp_tab[cbp][1]; @@ -673,7 +673,7 @@ static int decode_mb_i(AVSContext *h, int cbp_code) /* get coded block pattern */ if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) cbp_code = get_ue_golomb(gb); - if (cbp_code > 63) { + if (cbp_code > 63 || cbp_code < 0) { av_log(h->avctx, AV_LOG_ERROR, "illegal intra cbp\n"); return AVERROR_INVALIDDATA; } |