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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Shmulik Ladkani <shmulik.ladkani@gmail.com>,
        "David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.19 004/142] ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
Date:   Fri, 14 Dec 2018 12:58:09 +0100
Message-Id: <20181214115747.231205004@linuxfoundation.org>
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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Shmulik Ladkani <shmulik@metanetworks.com>

[ Upstream commit 1b4e5ad5d6b9f15cd0b5121f86d4719165958417 ]

In 'seg6_output', stack variable 'struct flowi6 fl6' was missing
initialization.

Fixes: 6c8702c60b88 ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/seg6_iptunnel.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -347,6 +347,7 @@ static int seg6_output(struct net *net,
 		struct ipv6hdr *hdr = ipv6_hdr(skb);
 		struct flowi6 fl6;
 
+		memset(&fl6, 0, sizeof(fl6));
 		fl6.daddr = hdr->daddr;
 		fl6.saddr = hdr->saddr;
 		fl6.flowlabel = ip6_flowinfo(hdr);