commit 5e3c94784153576dc1735f0de5031b33f2db3c16
author XiaokangQian <xiaokang.qian@arm.com> Tue Feb 08 05:56:34 2022 +0000
committer XiaokangQian <xiaokang.qian@arm.com> Fri Mar 25 07:50:56 2022 +0000
tree d1b74c17bab4eba5e7325b23af3963027e58b6d4
parent 233397ef88c7f517bf562055b1147a38b09e5513

Fix right-shift data loss issue with MBEDTLS_PUT_UINT16_BE in cookie

Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>

library/ssl_tls13_client.c

diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 7628bb9..84051c1 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -713,7 +713,7 @@
 
     MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_COOKIE, p, 0 );
     MBEDTLS_PUT_UINT16_BE( ssl->handshake->verify_cookie_len + 2, p, 2 );
-    MBEDTLS_PUT_UINT16_BE( ssl->handshake->verify_cookie_len, p, 4 );
+    MBEDTLS_PUT_UINT16_BE( (size_t) ssl->handshake->verify_cookie_len, p, 4 );
     p += 6;
 
     /* Cookie */