r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_unlabel(&(0x7f0000000140), r0) sendmsg$NLBL_UNLABEL_C_STATICREMOVEDEF(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f00000001c0)={0x3c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_UNLABEL_A_IPV6MASK={0x14, 0x3, @rand_addr=' \x01\x00'}, @NLBL_UNLABEL_A_IPV6ADDR={0x14, 0x2, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x3c}}, 0x0)