Set alpn_selected_len to zero when freeing alpn_selected.

This is not strictly necessary since we proceed to zero the entire struct,
however it keeps the code consistent and easily auditable.

ok tb@

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libssl/s3_lib.c b/src/lib/libssl/s3_lib.c
index 9df06c51be..6563de5be2 100644
--- a/src/lib/libssl/s3_lib.c
+++ b/src/lib/libssl/s3_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: s3_lib.c,v 1.206 2021/03/24 18:43:59 jsing Exp $ */
+/* $OpenBSD: s3_lib.c,v 1.207 2021/04/19 16:47:25 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -1627,6 +1627,7 @@ ssl3_clear(SSL *s)
 
         free(S3I(s)->alpn_selected);
         S3I(s)->alpn_selected = NULL;
+        S3I(s)->alpn_selected_len = 0;
 
         memset(S3I(s), 0, sizeof(*S3I(s)));
         internal = S3I(s);