From 3788c654838f52499e8f2d63cad39ecc8f23bde5 Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <Todd.Miller@sudo.ws>
Date: Sat, 2 Feb 2019 13:55:30 -0700
Subject: [PATCH] Fix memory leak when there are no network interfaces or an
 error occurs.

---
 src/net_ifs.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/net_ifs.c b/src/net_ifs.c
index f95cf4d61..82610d8ed 100644
--- a/src/net_ifs.c
+++ b/src/net_ifs.c
@@ -149,12 +149,13 @@ get_net_ifs(char **addrinfo)
 	}
     }
     if (num_interfaces == 0)
-	debug_return_int(0);
+	goto done;
     ailen = num_interfaces * 2 * INET6_ADDRSTRLEN;
     if ((cp = malloc(ailen)) == NULL) {
 	sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
 	    "unable to allocate memory");
-	debug_return_int(-1);
+	num_interfaces = -1;
+	goto done;
     }
     *addrinfo = cp;
 
-- 
2.50.1