---

yaml --- r: 352079 b: refs/heads/master c: cbb95e0 h: refs/heads/master i: 352077: 9ec17e9 352075: f9a3a65 352071: 6dc0219 352063: b5052ed v: v3
git-mirror · Feb 5, 2013 · 4adb0f5 · 4adb0f5
1 parent 89519be
commit 4adb0f5
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b6fdfdfab0c57d4a62359277c09258bc2f5a1550
+refs/heads/master: cbb95e0ca92869cc94a1c5e5ac58395afbbda26e
diff --git a/trunk/net/l2tp/l2tp_core.c b/trunk/net/l2tp/l2tp_core.c
@@ -1593,11 +1593,18 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
 		if (err < 0)
 			goto err;
 	} else {
-		err = -EBADF;
 		sock = sockfd_lookup(fd, &err);
 		if (!sock) {
-			pr_err("tunl %hu: sockfd_lookup(fd=%d) returned %d\n",
+			pr_err("tunl %u: sockfd_lookup(fd=%d) returned %d\n",
 			       tunnel_id, fd, err);
+			err = -EBADF;
+			goto err;
+		}
+
+		/* Reject namespace mismatches */
+		if (!net_eq(sock_net(sock->sk), net)) {
+			pr_err("tunl %u: netns mismatch\n", tunnel_id);
+			err = -EINVAL;
 			goto err;
 		}
 	}