diff options
| -rw-r--r-- | libavcodec/diracdec.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c index af561d1426..fd23139062 100644 --- a/libavcodec/diracdec.c +++ b/libavcodec/diracdec.c @@ -676,6 +676,11 @@ static int decode_component(DiracContext *s, int comp) b->length = get_interleaved_ue_golomb(&s->gb); if (b->length) { b->quant = get_interleaved_ue_golomb(&s->gb); + if (b->quant > (DIRAC_MAX_QUANT_INDEX - 1)) { + av_log(s->avctx, AV_LOG_ERROR, "Unsupported quant %d\n", b->quant); + b->quant = 0; + return AVERROR_INVALIDDATA; + } align_get_bits(&s->gb); b->coeff_data = s->gb.buffer + get_bits_count(&s->gb)/8; b->length = FFMIN(b->length, FFMAX(get_bits_left(&s->gb)/8, 0)); |