From fe2d9b1a0e7805384770ec0ddd34c9f1e9fe6fa8 Mon Sep 17 00:00:00 2001
From: Geliang Tang <geliangtang@gmail.com>
Date: Mon, 19 Oct 2020 18:23:15 +0800
Subject: mptcp: initialize mptcp_options_received's ahmac

Initialize mptcp_options_received's ahmac to zero, otherwise it
will be a random number when receiving ADD_ADDR suboption with echo-flag=1.

Fixes: 3df523ab582c5 ("mptcp: Add ADD_ADDR handling")
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 net/mptcp/options.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'net')

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 092a2d48bfd3..1ff3469938b6 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -297,6 +297,7 @@ void mptcp_get_options(const struct sk_buff *skb,
 	mp_opt->mp_capable = 0;
 	mp_opt->mp_join = 0;
 	mp_opt->add_addr = 0;
+	mp_opt->ahmac = 0;
 	mp_opt->rm_addr = 0;
 	mp_opt->dss = 0;
 
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