1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 6a047d30e8c6..d887016e54b6 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1167,6 +1167,12 @@ static int team_port_add(struct team *team, struct net_device *port_dev,
                 return -EBUSY;
         }
 
+        if (dev == port_dev) {
+                NL_SET_ERR_MSG(extack, "Cannot enslave team device to itself");
+                netdev_err(dev, "Cannot enslave team device to itself\n");
+                return -EINVAL;
+        }
+
         if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
             vlan_uses_dev(dev)) {
                 NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up");