linux-kernel - [PATCH 4.14 04/89] ipv6: sr: properly initialize flowi6 prior passing to ip6_route

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Message-Id: <20181214115729.889224944@linuxfoundation.org>
Date:   Fri, 14 Dec 2018 12:59:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Shmulik Ladkani <shmulik.ladkani@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.14 04/89] ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output

4.14-stable review patch.  If anyone has any objections, please let me know.

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

From: Shmulik Ladkani <shmulik@...anetworks.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@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ipv6/seg6_iptunnel.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -327,6 +327,7 @@ 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);