From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Sun, 16 Dec 2018 11:43:59 +0000 (+0100)
Subject: Fix a minor nit in the hkdflabel size
X-Git-Tag: openssl-3.0.0-alpha1~2673
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0b4233f5a4a181a6dcb7c511cd2663e500e659a4;p=oweals%2Fopenssl.git

Fix a minor nit in the hkdflabel size

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7913)
---

diff --git a/ssl/tls13_enc.c b/ssl/tls13_enc.c
index 17966c8023..6022950cf8 100644
--- a/ssl/tls13_enc.c
+++ b/ssl/tls13_enc.c
@@ -41,7 +41,7 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret,
      * + bytes for the hash itself
      */
     unsigned char hkdflabel[sizeof(uint16_t) + sizeof(uint8_t) +
-                            + sizeof(label_prefix) + TLS13_MAX_LABEL_LEN
+                            + (sizeof(label_prefix) - 1) + TLS13_MAX_LABEL_LEN
                             + 1 + EVP_MAX_MD_SIZE];
     WPACKET pkt;