CID of 20 bytes is allowed

h2o · Mar 31, 2020 · 713707b · 713707b
1 parent 7a49c30
commit 713707b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/quicly.c b/lib/quicly.c
@@ -5128,7 +5128,7 @@ int quicly_decrypt_address_token(ptls_aead_context_t *aead, quicly_address_token
     switch (plaintext->type) {
     case QUICLY_ADDRESS_TOKEN_TYPE_RETRY:
         ptls_decode_open_block(src, end, 1, {
-            if ((plaintext->retry.odcid.len = end - src) >= sizeof(plaintext->retry.odcid.cid)) {
+            if ((plaintext->retry.odcid.len = end - src) > sizeof(plaintext->retry.odcid.cid)) {
                 ret = PTLS_ALERT_DECODE_ERROR;
                 goto Exit;
             }