kerndat: bind ipv6-socket only if ipv6 is enabled

Fixes: checkpoint-restore#2222 Fixes: f1c8d38 ("kerndat: check if setsockopt IPV6_FREEBIND is supported") Signed-off-by: Yan Evzman <yevzman@gmail.com> Signed-off-by: Andrei Vagin <avagin@google.com>
ancientmodern · Jul 26, 2023 · d9e043b · d9e043b
1 parent 9a9a729
commit d9e043b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/criu/kerndat.c b/criu/kerndat.c
@@ -1578,6 +1578,11 @@ static int kerndat_has_ipv6_freebind(void)
 {
 	int sk, val;
 
+	if (!kdat.ipv6) {
+		kdat.has_ipv6_freebind = false;
+		return 0;
+	}
+
 	sk = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
 	if (sk == -1) {
 		pr_perror("Unable to create a ipv6 dgram socket");