diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 22075943bb58..25a8076a77bf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -3405,6 +3405,18 @@ static int esw_inline_mode_to_devlink(u8 mlx5_mode, u8 *mode)
 	return 0;
 }
 
+static bool esw_offloads_devlink_ns_eq_netdev_ns(struct devlink *devlink)
+{
+	struct net *devl_net, *netdev_net;
+	struct mlx5_eswitch *esw;
+
+	esw = mlx5_devlink_eswitch_get(devlink);
+	netdev_net = dev_net(esw->dev->mlx5e_res.uplink_netdev);
+	devl_net = devlink_net(devlink);
+
+	return net_eq(devl_net, netdev_net);
+}
+
 int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 				  struct netlink_ext_ack *extack)
 {
@@ -3419,6 +3431,13 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 	if (esw_mode_from_devlink(mode, &mlx5_mode))
 		return -EINVAL;
 
+	if (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV &&
+	    !esw_offloads_devlink_ns_eq_netdev_ns(devlink)) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Can't change E-Switch mode to switchdev when netdev net namespace has diverged from the devlink's.");
+		return -EPERM;
+	}
+
 	mlx5_lag_disable_change(esw->dev);
 	err = mlx5_esw_try_lock(esw);
 	if (err < 0) {