r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$netlbl_unlabel(&(0x7f0000000040), r0)
sendmsg$NLBL_UNLABEL_C_STATICREMOVEDEF(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000080)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NLBL_UNLABEL_A_IPV6ADDR={0x14, 0x2, @mcast2}, @NLBL_UNLABEL_A_IPV6MASK={0x14, 0x3, @private2}]}, 0x3c}}, 0x0)