slice_count = avctx->slice_count;
//parse first slice header to check whether this frame can be decoded
- if(get_slice_offset(avctx, slices_hdr, 0) > buf_size){
- av_log(avctx, AV_LOG_ERROR, "Slice offset is greater than frame size\n");
+ if(get_slice_offset(avctx, slices_hdr, 0) < 0 ||
+ get_slice_offset(avctx, slices_hdr, 0) > buf_size){
+ av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
return -1;
}
init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), (buf_size-get_slice_offset(avctx, slices_hdr, 0))*8);
else
size = get_slice_offset(avctx, slices_hdr, i+1) - offset;
- if(offset > buf_size){
- av_log(avctx, AV_LOG_ERROR, "Slice offset is greater than frame size\n");
+ if(offset < 0 || offset > buf_size || size < 0){
+ av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n");
break;
}