diff options
Diffstat (limited to 'libavcodec/wmaprodec.c')
| -rw-r--r-- | libavcodec/wmaprodec.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index 60d39be74e..1c9c6671e4 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -1174,7 +1174,12 @@ static int decode_subframe(WMAProDecodeCtx *s) int num_bits = av_log2((s->subframe_len + 3)/4) + 1; for (i = 0; i < s->channels_for_cur_subframe; i++) { int c = s->channel_indexes_for_cur_subframe[i]; - s->channel[c].num_vec_coeffs = get_bits(&s->gb, num_bits) << 2; + int num_vec_coeffs = get_bits(&s->gb, num_bits) << 2; + if (num_vec_coeffs > WMAPRO_BLOCK_MAX_SIZE) { + av_log(s->avctx, AV_LOG_ERROR, "num_vec_coeffs %d is too large\n", num_vec_coeffs); + return AVERROR_INVALIDDATA; + } + s->channel[c].num_vec_coeffs = num_vec_coeffs; } } else { for (i = 0; i < s->channels_for_cur_subframe; i++) { |