From: Boris Pismenny <borisp@mellanox.com>
Date: Wed, 14 Feb 2018 10:46:06 +0200
Subject: tls: retrun the correct IV in getsockopt
Patch-mainline: v4.16-rc3
Git-commit: a1dfa6812b682eef750412dd5a90e7d38d7af068
References: bsc#1103990 FATE#326006
Current code returns four bytes of salt followed by four bytes of IV.
This patch returns all eight bytes of IV.
fixes: 3c4d7559159b ("tls: kernel TLS support")
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/tls/tls_main.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -308,7 +308,8 @@ static int do_tls_getsockopt_tx(struct s
goto out;
}
lock_sock(sk);
- memcpy(crypto_info_aes_gcm_128->iv, ctx->iv,
+ memcpy(crypto_info_aes_gcm_128->iv,
+ ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE,
TLS_CIPHER_AES_GCM_128_IV_SIZE);
release_sock(sk);
if (copy_to_user(optval,