1275 byte packets is the absolute maximum packet size we're going to support....

1275 byte packets is the absolute maximum packet size we're going to support. This makes the encoder and decoder refuse to operate outside of these boundaries.

libcelt/celt.c

@@ -919,7 +919,7 @@ int celt_encode_with_ec_float(CELTEncoder * restrict st, const celt_sig * pcm, i
    int silence=0;
    SAVE_STACK;
 
-   if (nbCompressedBytes<2 || pcm==NULL)
+   if (nbCompressedBytes<2 || nbCompressedBytes>1275 || pcm==NULL)
      return CELT_BAD_ARG;
 
    frame_size *= st->upsample;
@@ -2180,7 +2180,7 @@ int celt_decode_with_ec_float(CELTDecoder * restrict st, const unsigned char *da
 
    SAVE_STACK;
 
-   if (pcm==NULL)
+   if (len<0 || len>1275 || pcm==NULL)
       return CELT_BAD_ARG;
 
    frame_size *= st->downsample;