From: Stéphane Graber <stgraber@ubuntu.com>
Date: Sun, 29 Sep 2013 23:41:52 +0000 (-0400)
Subject: Fix crasher in get_ips
X-Git-Tag: lxc-1.0.0.alpha2~79
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe218ca38358dd69dd51fca6433088ac631d6240;p=thirdparty%2Flxc.git

Fix crasher in get_ips

Check that the interface structure is not NULL before trying to access
its members.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
---

diff --git a/src/lxc/lxccontainer.c b/src/lxc/lxccontainer.c
index 1b3f2f5fc..3a2ae92a4 100644
--- a/src/lxc/lxccontainer.c
+++ b/src/lxc/lxccontainer.c
@@ -1305,6 +1305,9 @@ static char** lxcapi_get_ips(struct lxc_container *c, char* interface, char* fam
 
 	/* Iterate through the interfaces */
 	for (tempIfAddr = interfaceArray; tempIfAddr != NULL; tempIfAddr = tempIfAddr->ifa_next) {
+		if (tempIfAddr->ifa_addr == NULL)
+			continue;
+
 		if(tempIfAddr->ifa_addr->sa_family == AF_INET) {
 			if (family && strcmp(family, "inet"))
 				continue;