From a7150dc1d46b73f65bfedd728aeca1dcf5ec20eb Mon Sep 17 00:00:00 2001

From: Andrea Claudi <aclaudi@redhat.com>

Date: Mon, 29 Apr 2019 20:08:07 +0200

Subject: [PATCH] ipaddress: Avoid accessing uninitialized variable lcl

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1465646

Upstream Status: iproute2.git commit d044ea3e784d1

commit d044ea3e784d1a4f0a61f306b86ce95c9a26b0b5

Author: Phil Sutter <phil@nwl.cc>

Date:   Mon Aug 21 11:26:59 2017 +0200

    ipaddress: Avoid accessing uninitialized variable lcl

    If no address was given, ipaddr_modify() accesses uninitialized data

    when assigning to req.ifa.ifa_prefixlen.

    Signed-off-by: Phil Sutter <phil@nwl.cc>

---

 ip/ipaddress.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ip/ipaddress.c b/ip/ipaddress.c

index bed2d3801809b..2c27da3a1f079 100644

--- a/ip/ipaddress.c

+++ b/ip/ipaddress.c

@@ -1887,7 +1887,7 @@ static int ipaddr_modify(int cmd, int flags, int argc, char **argv)

 	char  *lcl_arg = NULL;

 	char  *valid_lftp = NULL;

 	char  *preferred_lftp = NULL;

-	inet_prefix lcl;

+	inet_prefix lcl = {};

 	inet_prefix peer;

 	int local_len = 0;

 	int peer_len = 0;

-- 

2.20.1