diff options
| -rw-r--r-- | libavcodec/huffyuv.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/huffyuv.c b/libavcodec/huffyuv.c index 1a55abbe4c..0028da617b 100644 --- a/libavcodec/huffyuv.c +++ b/libavcodec/huffyuv.c @@ -452,6 +452,9 @@ s->bgr32=1; if(s->version==2){ int method, interlace; + if (avctx->extradata_size < 4) + return -1; + method= ((uint8_t*)avctx->extradata)[0]; s->decorrelate= method&64 ? 1 : 0; s->predictor= method&63; @@ -462,7 +465,7 @@ s->bgr32=1; s->interlaced= (interlace==1) ? 1 : (interlace==2) ? 0 : s->interlaced; s->context= ((uint8_t*)avctx->extradata)[2] & 0x40 ? 1 : 0; - if(read_huffman_tables(s, ((uint8_t*)avctx->extradata)+4, avctx->extradata_size) < 0) + if(read_huffman_tables(s, ((uint8_t*)avctx->extradata)+4, avctx->extradata_size-4) < 0) return -1; }else{ switch(avctx->bits_per_coded_sample&7){ |