diff options
Diffstat (limited to 'libavcodec/jpeg2000dec.c')
| -rw-r--r-- | libavcodec/jpeg2000dec.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index 83efab8bc4..ffe97eb59b 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -652,10 +652,16 @@ static int jpeg2000_decode_packet(Jpeg2000DecoderContext *s, else if (incl < 0) return incl; - if (!cblk->npasses) - cblk->nonzerobits = expn[bandno] + numgbits - 1 - - tag_tree_decode(s, prec->zerobits + cblkno, - 100); + if (!cblk->npasses) { + int v = expn[bandno] + numgbits - 1 - + tag_tree_decode(s, prec->zerobits + cblkno, 100); + if (v < 0) { + av_log(s->avctx, AV_LOG_ERROR, + "nonzerobits %d invalid\n", v); + return AVERROR_INVALIDDATA; + } + cblk->nonzerobits = v; + } if ((newpasses = getnpasses(s)) < 0) return newpasses; if ((llen = getlblockinc(s)) < 0) |