diff --git a/libavcodec/notchlc.c b/libavcodec/notchlc.c
index 57ce70e945..9a53cad9cb 100644
--- a/libavcodec/notchlc.c
+++ b/libavcodec/notchlc.c
@@ -496,6 +496,9 @@ static int decode_frame(AVCodecContext *avctx,
 
         bytestream2_init(gb, s->lzf_buffer, uncompressed_size);
     } else if (s->format == 1) {
+        if (bytestream2_get_bytes_left(gb) < uncompressed_size / 255)
+            return AVERROR_INVALIDDATA;
+
         av_fast_padded_malloc(&s->uncompressed_buffer, &s->uncompressed_size,
                               uncompressed_size);
         if (!s->uncompressed_buffer)