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| author | Luca Barbato <lu_zero@gentoo.org> | 2013-10-09 06:17:12 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-10-09 22:25:19 +0200 |
| commit | 1018a92219a38a812cf97761c6b3a5e66a400f4b (patch) | |
| tree | 6045b9d270bd76e24913811be8fae661f19931fb /libavcodec/jpeg2000dec.c | |
| parent | 071e29af4d383bdb44d0c87416dee3e4bb597936 (diff) | |
| download | ffmpeg-1018a92219a38a812cf97761c6b3a5e66a400f4b.tar.gz | |
jpeg2000: Check block length
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Diffstat (limited to 'libavcodec/jpeg2000dec.c')
| -rw-r--r-- | libavcodec/jpeg2000dec.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index 18346f9e59..cc154c3522 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -715,6 +715,13 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s, } cblk->length += cblk->lengthinc; cblk->lengthinc = 0; + + if (cblk->length > sizeof(cblk->data)) { + av_log(s->avctx, AV_LOG_ERROR, + "Block length %d > data size %zd\n", + cblk->length, sizeof(cblk->data)); + return AVERROR_INVALIDDATA; + } } } return 0; |