// https://syzkaller.appspot.com/bug?id=c733313531000b174899fbfc2e59e8b1c6042549
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/nl80211.h>
#include <linux/rfkill.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[4096];
};

static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
                         const void* data, int size)
{
  memset(nlmsg, 0, sizeof(*nlmsg));
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_type = typ;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
  memcpy(hdr + 1, data, size);
  nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  if (size > 0)
    memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
                            int* reply_len, bool dofail)
{
  if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
    exit(1);
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
  struct sockaddr_nl addr;
  memset(&addr, 0, sizeof(addr));
  addr.nl_family = AF_NETLINK;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

static int netlink_send(struct nlmsg* nlmsg, int sock)
{
  return netlink_send_ext(nlmsg, sock, 0, NULL, true);
}

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                                         NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static void netlink_device_change(struct nlmsg* nlmsg, int sock,
                                  const char* name, bool up, const char* master,
                                  const void* mac, int macsize,
                                  const char* new_name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  hdr.ifi_index = if_nametoindex(name);
  netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
  if (new_name)
    netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
  if (master) {
    int ifindex = if_nametoindex(master);
    netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
  }
  if (macsize)
    netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
                            const void* addr, int addrsize)
{
  struct ifaddrmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
  hdr.ifa_scope = RT_SCOPE_UNIVERSE;
  hdr.ifa_index = if_nametoindex(dev);
  netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
  netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
  return netlink_send(nlmsg, sock);
}

static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in_addr in_addr;
  inet_pton(AF_INET, addr, &in_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
  if (err < 0) {
  }
}

static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, addr, &in6_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
  if (err < 0) {
  }
}

static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
                              const void* addr, int addrsize, const void* mac,
                              int macsize)
{
  struct ndmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ndm_ifindex = if_nametoindex(name);
  hdr.ndm_state = NUD_PERMANENT;
  netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, NDA_DST, addr, addrsize);
  netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

static int tunfd = -1;

#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"

#define IFF_NAPI 0x0010

static void initialize_tun(void)
{
  tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
  if (tunfd == -1) {
    printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
    printf("otherwise fuzzing or reproducing might not work as intended\n");
    return;
  }
  const int kTunFd = 200;
  if (dup2(tunfd, kTunFd) < 0)
    exit(1);
  close(tunfd);
  tunfd = kTunFd;
  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    exit(1);
  }
  char sysctl[64];
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
  write_file(sysctl, "0");
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
  write_file(sysctl, "0");
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
  netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
  uint64_t macaddr = REMOTE_MAC;
  struct in_addr in_addr;
  inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
                    &macaddr, ETH_ALEN);
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
                    &macaddr, ETH_ALEN);
  macaddr = LOCAL_MAC;
  netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
                        NULL);
  close(sock);
}

#define WIFI_INITIAL_DEVICE_COUNT 2
#define WIFI_MAC_BASE {0x08, 0x02, 0x11, 0x00, 0x00, 0x00}
#define WIFI_IBSS_BSSID {0x50, 0x50, 0x50, 0x50, 0x50, 0x50}
#define WIFI_IBSS_SSID {0x10, 0x10, 0x10, 0x10, 0x10, 0x10}
#define WIFI_DEFAULT_FREQUENCY 2412
#define WIFI_DEFAULT_SIGNAL 0
#define WIFI_DEFAULT_RX_RATE 1
#define HWSIM_CMD_REGISTER 1
#define HWSIM_CMD_FRAME 2
#define HWSIM_CMD_NEW_RADIO 4
#define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14
#define HWSIM_ATTR_PERM_ADDR 22

#define IF_OPER_UP 6
struct join_ibss_props {
  int wiphy_freq;
  bool wiphy_freq_fixed;
  uint8_t* mac;
  uint8_t* ssid;
  int ssid_len;
};

static int set_interface_state(const char* interface_name, int on)
{
  struct ifreq ifr;
  int sock = socket(AF_INET, SOCK_DGRAM, 0);
  if (sock < 0) {
    return -1;
  }
  memset(&ifr, 0, sizeof(ifr));
  strcpy(ifr.ifr_name, interface_name);
  int ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
  if (ret < 0) {
    close(sock);
    return -1;
  }
  if (on)
    ifr.ifr_flags |= IFF_UP;
  else
    ifr.ifr_flags &= ~IFF_UP;
  ret = ioctl(sock, SIOCSIFFLAGS, &ifr);
  close(sock);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static int nl80211_set_interface(struct nlmsg* nlmsg, int sock,
                                 int nl80211_family, uint32_t ifindex,
                                 uint32_t iftype, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = NL80211_CMD_SET_INTERFACE;
  netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
  netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype));
  int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail);
  if (err < 0) {
  }
  return err;
}

static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family,
                             uint32_t ifindex, struct join_ibss_props* props,
                             bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = NL80211_CMD_JOIN_IBSS;
  netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
  netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len);
  netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq),
               sizeof(props->wiphy_freq));
  if (props->mac)
    netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN);
  if (props->wiphy_freq_fixed)
    netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0);
  int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail);
  if (err < 0) {
  }
  return err;
}

static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail)
{
  struct ifinfomsg info;
  memset(&info, 0, sizeof(info));
  info.ifi_family = AF_UNSPEC;
  info.ifi_index = ifindex;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1) {
    return -1;
  }
  netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info));
  int n;
  int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail);
  close(sock);
  if (err) {
    return -1;
  }
  struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf));
  for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) {
    if (attr->rta_type == IFLA_OPERSTATE)
      return *((int32_t*)RTA_DATA(attr));
  }
  return -1;
}

static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface,
                                int operstate, bool dofail)
{
  int ifindex = if_nametoindex(interface);
  while (true) {
    usleep(1000);
    int ret = get_ifla_operstate(nlmsg, ifindex, dofail);
    if (ret < 0)
      return ret;
    if (ret == operstate)
      return 0;
  }
  return 0;
}

static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock,
                                        int nl80211_family_id, char* interface,
                                        struct join_ibss_props* ibss_props,
                                        bool dofail)
{
  int ifindex = if_nametoindex(interface);
  if (ifindex == 0) {
    return -1;
  }
  int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex,
                                  NL80211_IFTYPE_ADHOC, dofail);
  if (ret < 0) {
    return -1;
  }
  ret = set_interface_state(interface, 1);
  if (ret < 0) {
    return -1;
  }
  ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props,
                          dofail);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static int hwsim80211_create_device(struct nlmsg* nlmsg, int sock,
                                    int hwsim_family,
                                    uint8_t mac_addr[ETH_ALEN])
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = HWSIM_CMD_NEW_RADIO;
  netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, HWSIM_ATTR_SUPPORT_P2P_DEVICE, NULL, 0);
  netlink_attr(nlmsg, HWSIM_ATTR_PERM_ADDR, mac_addr, ETH_ALEN);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
  return err;
}

static void initialize_wifi_devices(void)
{
  int rfkill = open("/dev/rfkill", O_RDWR);
  if (rfkill == -1)
    exit(1);
  struct rfkill_event event = {0};
  event.type = RFKILL_TYPE_ALL;
  event.op = RFKILL_OP_CHANGE_ALL;
  if (write(rfkill, &event, sizeof(event)) != (ssize_t)(sizeof(event)))
    exit(1);
  close(rfkill);
  uint8_t mac_addr[6] = WIFI_MAC_BASE;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock < 0)
    exit(1);
  int hwsim_family_id =
      netlink_query_family_id(&nlmsg, sock, "MAC80211_HWSIM", true);
  int nl80211_family_id =
      netlink_query_family_id(&nlmsg, sock, "nl80211", true);
  if (hwsim_family_id < 0 || nl80211_family_id < 0)
    exit(1);
  uint8_t ssid[] = WIFI_IBSS_SSID;
  uint8_t bssid[] = WIFI_IBSS_BSSID;
  struct join_ibss_props ibss_props = {.wiphy_freq = WIFI_DEFAULT_FREQUENCY,
                                       .wiphy_freq_fixed = true,
                                       .mac = bssid,
                                       .ssid = ssid,
                                       .ssid_len = sizeof(ssid)};
  for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
    mac_addr[5] = device_id;
    int ret = hwsim80211_create_device(&nlmsg, sock, hwsim_family_id, mac_addr);
    if (ret < 0)
      exit(1);
    char interface[6] = "wlan0";
    interface[4] += device_id;
    if (nl80211_setup_ibss_interface(&nlmsg, sock, nl80211_family_id, interface,
                                     &ibss_props, true) < 0)
      exit(1);
  }
  for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
    char interface[6] = "wlan0";
    interface[4] += device_id;
    int ret = await_ifla_operstate(&nlmsg, interface, IF_OPER_UP, true);
    if (ret < 0)
      exit(1);
  }
  close(sock);
}

static int read_tun(char* data, int size)
{
  if (tunfd < 0)
    return -1;
  int rv = read(tunfd, data, size);
  if (rv < 0) {
    if (errno == EAGAIN || errno == EBADF || errno == EBADFD)
      return -1;
    exit(1);
  }
  return rv;
}

static void flush_tun()
{
  char data[1000];
  while (read_tun(&data[0], sizeof(data)) != -1) {
  }
}

#define MAX_FDS 30

static long syz_genetlink_get_family_id(volatile long name,
                                        volatile long sock_arg)
{
  int fd = sock_arg;
  if (fd < 0) {
    fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
    if (fd == -1) {
      return -1;
    }
  }
  struct nlmsg nlmsg_tmp;
  int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false);
  if ((int)sock_arg < 0)
    close(fd);
  if (ret < 0) {
    return -1;
  }
  return ret;
}

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_tun();
  initialize_wifi_devices();
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
  flush_tun();
}

static void close_fds()
{
  for (int fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

#define HWSIM_ATTR_RX_RATE 5
#define HWSIM_ATTR_SIGNAL 6
#define HWSIM_ATTR_ADDR_RECEIVER 1
#define HWSIM_ATTR_FRAME 3

#define WIFI_MAX_INJECT_LEN 2048

static int hwsim_register_socket(struct nlmsg* nlmsg, int sock,
                                 int hwsim_family)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = HWSIM_CMD_REGISTER;
  netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr));
  int err = netlink_send_ext(nlmsg, sock, 0, NULL, false);
  if (err < 0) {
  }
  return err;
}

static int hwsim_inject_frame(struct nlmsg* nlmsg, int sock, int hwsim_family,
                              uint8_t* mac_addr, uint8_t* data, int len)
{
  struct genlmsghdr genlhdr;
  uint32_t rx_rate = WIFI_DEFAULT_RX_RATE;
  uint32_t signal = WIFI_DEFAULT_SIGNAL;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = HWSIM_CMD_FRAME;
  netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, HWSIM_ATTR_RX_RATE, &rx_rate, sizeof(rx_rate));
  netlink_attr(nlmsg, HWSIM_ATTR_SIGNAL, &signal, sizeof(signal));
  netlink_attr(nlmsg, HWSIM_ATTR_ADDR_RECEIVER, mac_addr, ETH_ALEN);
  netlink_attr(nlmsg, HWSIM_ATTR_FRAME, data, len);
  int err = netlink_send_ext(nlmsg, sock, 0, NULL, false);
  if (err < 0) {
  }
  return err;
}

static long syz_80211_inject_frame(volatile long a0, volatile long a1,
                                   volatile long a2)
{
  uint8_t* mac_addr = (uint8_t*)a0;
  uint8_t* buf = (uint8_t*)a1;
  int buf_len = (int)a2;
  struct nlmsg tmp_msg;
  if (buf_len < 0 || buf_len > WIFI_MAX_INJECT_LEN) {
    return -1;
  }
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock < 0) {
    return -1;
  }
  int hwsim_family_id =
      netlink_query_family_id(&tmp_msg, sock, "MAC80211_HWSIM", false);
  if (hwsim_family_id < 0) {
    close(sock);
    return -1;
  }
  int ret = hwsim_register_socket(&tmp_msg, sock, hwsim_family_id);
  if (ret < 0) {
    close(sock);
    return -1;
  }
  ret = hwsim_inject_frame(&tmp_msg, sock, hwsim_family_id, mac_addr, buf,
                           buf_len);
  close(sock);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0x0, 0x0};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  setsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER arguments: [
  //    fd: sock_sctp6 (resource)
  //    level: const = 0x84 (4 bytes)
  //    opt: const = 0x7b (4 bytes)
  //    val: nil
  //    len: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_setsockopt, /*fd=*/(intptr_t)-1, /*level=*/0x84, /*opt=*/0x7b,
          /*val=*/0ul, /*len=*/0ul);
  //  sendto$inet6 arguments: [
  //    fd: sock_in6 (resource)
  //    buf: nil
  //    len: len = 0x0 (8 bytes)
  //    f: send_flags = 0x0 (8 bytes)
  //    addr: nil
  //    addrlen: len = 0x0 (8 bytes)
  //  ]
  syscall(__NR_sendto, /*fd=*/(intptr_t)-1, /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  //  getsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER arguments: [
  //    fd: sock_sctp6 (resource)
  //    level: const = 0x84 (4 bytes)
  //    opt: const = 0x7c (4 bytes)
  //    val: nil
  //    len: ptr[inout, len] {
  //      len = 0x0 (4 bytes)
  //    }
  //  ]
  *(uint32_t*)0x200000000100 = 0;
  syscall(__NR_getsockopt, /*fd=*/(intptr_t)-1, /*level=*/0x84, /*opt=*/0x7c,
          /*val=*/0ul, /*len=*/0x200000000100ul);
  //  syz_80211_inject_frame arguments: [
  //    mac_addr: ptr[in, ieee80211_mac_addr] {
  //      union ieee80211_mac_addr {
  //        device_b: ieee80211_fixed_mac_addr[const[0x1, int8]] {
  //          byte0: const = 0x8 (1 bytes)
  //          byte1: const = 0x2 (1 bytes)
  //          byte2: const = 0x11 (1 bytes)
  //          byte3: const = 0x0 (1 bytes)
  //          byte4: const = 0x0 (1 bytes)
  //          byte5: const = 0x1 (1 bytes)
  //        }
  //      }
  //    }
  //    buf: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {80 00 00 00 08 02 11 00 00 01 08 02 11 00 00 00
  //          aa 09 b7 99 c0 d7 00 00 00 00 00 00 00 00 00 00 64 00 01 10 00 06
  //          02 02 02 02 02 02 01 01 0b} (length 0x2f)
  //        }
  //      }
  //    }
  //    buf_len: len = 0xb5 (8 bytes)
  //  ]
  *(uint8_t*)0x200000000240 = 8;
  *(uint8_t*)0x200000000241 = 2;
  *(uint8_t*)0x200000000242 = 0x11;
  *(uint8_t*)0x200000000243 = 0;
  *(uint8_t*)0x200000000244 = 0;
  *(uint8_t*)0x200000000245 = 1;
  memcpy((void*)0x200000000000,
         "\x80\x00\x00\x00\x08\x02\x11\x00\x00\x01\x08\x02\x11\x00\x00\x00\xaa"
         "\x09\xb7\x99\xc0\xd7\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x64\x00"
         "\x01\x10\x00\x06\x02\x02\x02\x02\x02\x02\x01\x01\x0b",
         47);
  syz_80211_inject_frame(/*mac_addr=*/0x200000000240, /*buf=*/0x200000000000,
                         /*buf_len=*/0xb5);
  //  socket$nl_generic arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x10 (4 bytes)
  //  ]
  //  returns sock_nl_generic
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[0] = res;
  //  sendmsg$NL80211_CMD_START_AP arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //    msg_nl80211_payload[NL80211_CMD_START_AP, nl80211_wdev_payload],
  //    nl80211_policy$start_ap]]] {
  //      msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //      msg_nl80211_payload[NL80211_CMD_START_AP, nl80211_wdev_payload],
  //      nl80211_policy$start_ap]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[nl80211_family_id,
  //        msg_nl80211_payload[NL80211_CMD_START_AP, nl80211_wdev_payload],
  //        nl80211_policy$start_ap]]] {
  //          iovec[in, netlink_msg_t[nl80211_family_id,
  //          msg_nl80211_payload[NL80211_CMD_START_AP, nl80211_wdev_payload],
  //          nl80211_policy$start_ap]] {
  //            addr: ptr[inout, array[ANYUNION]] {
  //              array[ANYUNION] {
  //                union ANYUNION {
  //                  ANYBLOB: buffer: {30 30} (length 0x2)
  //                }
  //              }
  //            }
  //            len: len = 0x30 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x18004 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x2000000001c0 = 0;
  *(uint32_t*)0x2000000001c8 = 0;
  *(uint64_t*)0x2000000001d0 = 0x200000000200;
  *(uint64_t*)0x200000000200 = 0x200000000280;
  memset((void*)0x200000000280, 48, 2);
  *(uint64_t*)0x200000000208 = 0x30;
  *(uint64_t*)0x2000000001d8 = 1;
  *(uint64_t*)0x2000000001e0 = 0;
  *(uint64_t*)0x2000000001e8 = 0;
  *(uint32_t*)0x2000000001f0 = 0x18004;
  syscall(__NR_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0x2000000001c0ul,
          /*f=*/0ul);
  //  syz_genetlink_get_family_id$nl80211 arguments: [
  //    name: ptr[in, buffer] {
  //      buffer: {6e 6c 38 30 32 31 31 00} (length 0x8)
  //    }
  //    fd: sock_nl_generic (resource)
  //  ]
  //  returns nl80211_family_id
  memcpy((void*)0x200000000100, "nl80211\000", 8);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x200000000100, /*fd=*/-1);
  if (res != -1)
    r[1] = res;
  //  socket$nl_generic arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x10 (4 bytes)
  //  ]
  //  returns sock_nl_generic
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[2] = res;
  //  sendmsg$NL80211_CMD_SET_REG arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //    msg_nl80211_payload[NL80211_CMD_SET_REG, void], nl80211_policy$reg]]] {
  //      msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //      msg_nl80211_payload[NL80211_CMD_SET_REG, void], nl80211_policy$reg]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[nl80211_family_id,
  //        msg_nl80211_payload[NL80211_CMD_SET_REG, void],
  //        nl80211_policy$reg]]] {
  //          iovec[in, netlink_msg_t[nl80211_family_id,
  //          msg_nl80211_payload[NL80211_CMD_SET_REG, void],
  //          nl80211_policy$reg]] {
  //            addr: ptr[inout, array[ANYUNION]] {
  //              array[ANYUNION] {
  //                union ANYUNION {
  //                  ANYBLOB: buffer: {44 00 00 00} (length 0x4)
  //                }
  //                union ANYUNION {
  //                  ANYRES16: ANYRES16 (resource)
  //                }
  //                union ANYUNION {
  //                  ANYBLOB: buffer: {01 00 00 00 00 00 80 00 00 00 1a 00 00
  //                  00 28 00 22 80 04 14 00 80 04 00 00 80 04 00 00 80 83 41
  //                  f1 68 02 00 00 80 14 00 00 80 04 00 00 80 04 00 00 80 04
  //                  00 00 80 06 00 21} (length 0x39)
  //                }
  //              }
  //            }
  //            len: len = 0x44 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000500 = 0;
  *(uint32_t*)0x200000000508 = 0;
  *(uint64_t*)0x200000000510 = 0x2000000004c0;
  *(uint64_t*)0x2000000004c0 = 0x200000000240;
  memcpy((void*)0x200000000240, "D\000\000\000", 4);
  *(uint16_t*)0x200000000244 = r[1];
  memcpy((void*)0x200000000246,
         "\x01\x00\x00\x00\x00\x00\x80\x00\x00\x00\x1a\x00\x00\x00\x28\x00\x22"
         "\x80\x04\x14\x00\x80\x04\x00\x00\x80\x04\x00\x00\x80\x83\x41\xf1\x68"
         "\x02\x00\x00\x80\x14\x00\x00\x80\x04\x00\x00\x80\x04\x00\x00\x80\x04"
         "\x00\x00\x80\x06\x00\x21",
         57);
  *(uint64_t*)0x2000000004c8 = 0x44;
  *(uint64_t*)0x200000000518 = 1;
  *(uint64_t*)0x200000000520 = 0;
  *(uint64_t*)0x200000000528 = 0;
  *(uint32_t*)0x200000000530 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[2], /*msg=*/0x200000000500ul, /*f=*/0ul);
  //  syz_genetlink_get_family_id$nl80211 arguments: [
  //    name: ptr[in, buffer] {
  //      buffer: {6e 6c 38 30 32 31 31 00} (length 0x8)
  //    }
  //    fd: sock_nl_generic (resource)
  //  ]
  //  returns nl80211_family_id
  memcpy((void*)0x200000000080, "nl80211\000", 8);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x200000000080, /*fd=*/-1);
  if (res != -1)
    r[3] = res;
  //  ioctl$sock_SIOCGIFINDEX_80211 arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8933 (4 bytes)
  //    arg: ptr[out, ifreq_dev_t[nl80211_devnames, nl80211_ifindex]] {
  //      ifreq_dev_t[nl80211_devnames, nl80211_ifindex] {
  //        ifr_ifrn: buffer: {77 6c 61 6e 31 00 00 00 00 00 00 00 00 00 00 00}
  //        (length 0x10) elem: nl80211_ifindex (resource) pad = 0x0 (20 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x2000000000c0,
         "wlan1\000\000\000\000\000\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x8933,
                /*arg=*/0x2000000000c0ul);
  if (res != -1)
    r[4] = *(uint32_t*)0x2000000000d0;
  //  sendmsg$NL80211_CMD_SET_INTERFACE arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //    msg_nl80211_payload[NL80211_CMD_SET_INTERFACE, nl80211_wdev_payload],
  //    nl80211_policy$set_interface]]] {
  //      msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //      msg_nl80211_payload[NL80211_CMD_SET_INTERFACE, nl80211_wdev_payload],
  //      nl80211_policy$set_interface]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[nl80211_family_id,
  //        msg_nl80211_payload[NL80211_CMD_SET_INTERFACE,
  //        nl80211_wdev_payload], nl80211_policy$set_interface]]] {
  //          iovec[in, netlink_msg_t[nl80211_family_id,
  //          msg_nl80211_payload[NL80211_CMD_SET_INTERFACE,
  //          nl80211_wdev_payload], nl80211_policy$set_interface]] {
  //            addr: ptr[in, netlink_msg_t[nl80211_family_id,
  //            msg_nl80211_payload[NL80211_CMD_SET_INTERFACE,
  //            nl80211_wdev_payload], nl80211_policy$set_interface]] {
  //              netlink_msg_t[nl80211_family_id,
  //              msg_nl80211_payload[NL80211_CMD_SET_INTERFACE,
  //              nl80211_wdev_payload], nl80211_policy$set_interface] {
  //                len: len = 0x24 (4 bytes)
  //                type: nl80211_family_id (resource)
  //                flags: netlink_msg_flags = 0x5 (2 bytes)
  //                seq: int32 = 0x0 (4 bytes)
  //                pid: int32 = 0x0 (4 bytes)
  //                payload: msg_nl80211_payload[NL80211_CMD_SET_INTERFACE,
  //                nl80211_wdev_payload] {
  //                  genl_hdr: genlmsghdr_t[NL80211_CMD_SET_INTERFACE] {
  //                    cmd: const = 0x6 (1 bytes)
  //                    version: const = 0x0 (1 bytes)
  //                    reserved: const = 0x0 (2 bytes)
  //                  }
  //                  payload: nl80211_wdev_payload {
  //                    NL80211_ATTR_IFINDEX: union
  //                    optional[nlattr[NL80211_ATTR_IFINDEX, nl80211_ifindex]]
  //                    {
  //                      val: nlattr_t[const[NL80211_ATTR_IFINDEX, int16],
  //                      nl80211_ifindex] {
  //                        nla_len: offsetof = 0x8 (2 bytes)
  //                        nla_type: const = 0x3 (2 bytes)
  //                        payload: nl80211_ifindex (resource)
  //                        size: buffer: {} (length 0x0)
  //                      }
  //                    }
  //                    NL80211_ATTR_WDEV: union
  //                    optional[nlattr[NL80211_ATTR_WDEV, nl80211_wdev]] {
  //                      void: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //                attrs: array[nl80211_policy$set_interface] {
  //                  union nl80211_policy$set_interface {
  //                    NL80211_ATTR_IFTYPE: nlattr_t[const[NL80211_ATTR_IFTYPE,
  //                    int16], flags[nl80211_iftype, int32]] {
  //                      nla_len: offsetof = 0x8 (2 bytes)
  //                      nla_type: const = 0x5 (2 bytes)
  //                      payload: nl80211_iftype = 0x2 (4 bytes)
  //                      size: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x24 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000108 = 0;
  *(uint64_t*)0x200000000110 = 0x200000000140;
  *(uint64_t*)0x200000000140 = 0x200000000180;
  *(uint32_t*)0x200000000180 = 0x24;
  *(uint16_t*)0x200000000184 = r[3];
  *(uint16_t*)0x200000000186 = 5;
  *(uint32_t*)0x200000000188 = 0;
  *(uint32_t*)0x20000000018c = 0;
  *(uint8_t*)0x200000000190 = 6;
  *(uint8_t*)0x200000000191 = 0;
  *(uint16_t*)0x200000000192 = 0;
  *(uint16_t*)0x200000000194 = 8;
  *(uint16_t*)0x200000000196 = 3;
  *(uint32_t*)0x200000000198 = r[4];
  *(uint16_t*)0x20000000019c = 8;
  *(uint16_t*)0x20000000019e = 5;
  *(uint32_t*)0x2000000001a0 = 2;
  *(uint64_t*)0x200000000148 = 0x24;
  *(uint64_t*)0x200000000118 = 1;
  *(uint64_t*)0x200000000120 = 0;
  *(uint64_t*)0x200000000128 = 0;
  *(uint32_t*)0x200000000130 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000000100ul, /*f=*/0ul);
  //  sendmsg$NL80211_CMD_CONNECT arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //    msg_nl80211_payload[NL80211_CMD_CONNECT, nl80211_wdev_payload],
  //    nl80211_policy$connect]]] {
  //      msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //      msg_nl80211_payload[NL80211_CMD_CONNECT, nl80211_wdev_payload],
  //      nl80211_policy$connect]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[nl80211_family_id,
  //        msg_nl80211_payload[NL80211_CMD_CONNECT, nl80211_wdev_payload],
  //        nl80211_policy$connect]]] {
  //          iovec[in, netlink_msg_t[nl80211_family_id,
  //          msg_nl80211_payload[NL80211_CMD_CONNECT, nl80211_wdev_payload],
  //          nl80211_policy$connect]] {
  //            addr: ptr[in, netlink_msg_t[nl80211_family_id,
  //            msg_nl80211_payload[NL80211_CMD_CONNECT, nl80211_wdev_payload],
  //            nl80211_policy$connect]] {
  //              netlink_msg_t[nl80211_family_id,
  //              msg_nl80211_payload[NL80211_CMD_CONNECT,
  //              nl80211_wdev_payload], nl80211_policy$connect] {
  //                len: len = 0x28 (4 bytes)
  //                type: nl80211_family_id (resource)
  //                flags: netlink_msg_flags = 0x5 (2 bytes)
  //                seq: int32 = 0x0 (4 bytes)
  //                pid: int32 = 0x0 (4 bytes)
  //                payload: msg_nl80211_payload[NL80211_CMD_CONNECT,
  //                nl80211_wdev_payload] {
  //                  genl_hdr: genlmsghdr_t[NL80211_CMD_CONNECT] {
  //                    cmd: const = 0x2e (1 bytes)
  //                    version: const = 0x0 (1 bytes)
  //                    reserved: const = 0x0 (2 bytes)
  //                  }
  //                  payload: nl80211_wdev_payload {
  //                    NL80211_ATTR_IFINDEX: union
  //                    optional[nlattr[NL80211_ATTR_IFINDEX, nl80211_ifindex]]
  //                    {
  //                      val: nlattr_t[const[NL80211_ATTR_IFINDEX, int16],
  //                      nl80211_ifindex] {
  //                        nla_len: offsetof = 0x8 (2 bytes)
  //                        nla_type: const = 0x3 (2 bytes)
  //                        payload: nl80211_ifindex (resource)
  //                        size: buffer: {} (length 0x0)
  //                      }
  //                    }
  //                    NL80211_ATTR_WDEV: union
  //                    optional[nlattr[NL80211_ATTR_WDEV, nl80211_wdev]] {
  //                      void: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //                attrs: array[nl80211_policy$connect] {
  //                  union nl80211_policy$connect {
  //                    NL80211_ATTR_SSID: nlattr_t[const[NL80211_ATTR_SSID,
  //                    int16], ieee80211_ssid] {
  //                      nla_len: offsetof = 0xa (2 bytes)
  //                      nla_type: const = 0x34 (2 bytes)
  //                      payload: union ieee80211_ssid {
  //                        default_ap_ssid: buffer: {02 02 02 02 02 02} (length
  //                        0x6)
  //                      }
  //                      size: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x28 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x2000000001c0 = 0;
  *(uint32_t*)0x2000000001c8 = 0;
  *(uint64_t*)0x2000000001d0 = 0x200000000200;
  *(uint64_t*)0x200000000200 = 0x200000000a00;
  *(uint32_t*)0x200000000a00 = 0x28;
  *(uint16_t*)0x200000000a04 = r[3];
  *(uint16_t*)0x200000000a06 = 5;
  *(uint32_t*)0x200000000a08 = 0;
  *(uint32_t*)0x200000000a0c = 0;
  *(uint8_t*)0x200000000a10 = 0x2e;
  *(uint8_t*)0x200000000a11 = 0;
  *(uint16_t*)0x200000000a12 = 0;
  *(uint16_t*)0x200000000a14 = 8;
  *(uint16_t*)0x200000000a16 = 3;
  *(uint32_t*)0x200000000a18 = r[4];
  *(uint16_t*)0x200000000a1c = 0xa;
  *(uint16_t*)0x200000000a1e = 0x34;
  memset((void*)0x200000000a20, 2, 6);
  *(uint64_t*)0x200000000208 = 0x28;
  *(uint64_t*)0x2000000001d8 = 1;
  *(uint64_t*)0x2000000001e0 = 0;
  *(uint64_t*)0x2000000001e8 = 0;
  *(uint32_t*)0x2000000001f0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x2000000001c0ul, /*f=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  do_sandbox_none();
  return 0;
}