diff options
| -rw-r--r-- | libavcodec/escape124.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/escape124.c b/libavcodec/escape124.c index b872b3a53d..c3174ce6ef 100644 --- a/libavcodec/escape124.c +++ b/libavcodec/escape124.c @@ -249,6 +249,10 @@ static int escape124_decode_frame(AVCodecContext *avctx, // This codebook can be cut off at places other than // powers of 2, leaving some of the entries undefined. cb_size = get_bits_long(&gb, 20); + if (!cb_size) { + av_log(avctx, AV_LOG_ERROR, "Invalid codebook size 0.\n"); + return AVERROR_INVALIDDATA; + } cb_depth = av_log2(cb_size - 1) + 1; } else { cb_depth = get_bits(&gb, 4); |