// https://syzkaller.appspot.com/bug?id=779a64ccaefd969d5d9bc72a7c4fe39598d53884
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.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/futex.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/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 void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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 = 240;
  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);
}

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

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setsid();
  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 = 0;
  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);
  setup_common();
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  initialize_tun();
  loop();
  exit(1);
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void loop(void)
{
  int i, call, thread;
  int collide = 0;
again:
  for (call = 0; call < 7; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      if (collide && (call % 2) == 0)
        break;
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
  if (!collide) {
    collide = 1;
    goto again;
  }
}

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20000000, "./file0\000", 8);
    syscall(__NR_mkdir, 0x20000000ul, 0ul);
    break;
  case 1:
    memcpy((void*)0x20000100, "./file0\000", 8);
    syscall(__NR_mount, 0x20000000ul, 0x20000100ul, 0ul, 0x2001001ul, 0ul);
    break;
  case 2:
    memcpy((void*)0x20000040, "./file0\000", 8);
    memcpy((void*)0x20000080, "./file0\000", 8);
    syscall(__NR_pivot_root, 0x20000040ul, 0x20000080ul);
    break;
  case 3:
    res = syscall(__NR_socket, 0xaul, 1ul, 0);
    if (res != -1)
      r[0] = res;
    break;
  case 4:
    memcpy((void*)0x20000980,
           "filter\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000\000\000\000\000",
           32);
    *(uint32_t*)0x200009a0 = 0xe;
    *(uint32_t*)0x200009a4 = 4;
    *(uint32_t*)0x200009a8 = 0x390;
    *(uint32_t*)0x200009ac = 0xd0;
    *(uint32_t*)0x200009b0 = 0;
    *(uint32_t*)0x200009b4 = 0xd0;
    *(uint32_t*)0x200009b8 = 0;
    *(uint32_t*)0x200009bc = 0xd0;
    *(uint32_t*)0x200009c0 = 0x2c0;
    *(uint32_t*)0x200009c4 = 0x2c0;
    *(uint32_t*)0x200009c8 = 0x2c0;
    *(uint32_t*)0x200009cc = 0x2c0;
    *(uint32_t*)0x200009d0 = 0x2c0;
    *(uint32_t*)0x200009d4 = 4;
    *(uint64_t*)0x200009d8 = 0;
    *(uint8_t*)0x200009e0 = 0;
    *(uint8_t*)0x200009e1 = 0;
    *(uint8_t*)0x200009e2 = 0;
    *(uint8_t*)0x200009e3 = 0;
    *(uint8_t*)0x200009e4 = 0;
    *(uint8_t*)0x200009e5 = 0;
    *(uint8_t*)0x200009e6 = 0;
    *(uint8_t*)0x200009e7 = 0;
    *(uint8_t*)0x200009e8 = 0;
    *(uint8_t*)0x200009e9 = 0;
    *(uint8_t*)0x200009ea = 0;
    *(uint8_t*)0x200009eb = 0;
    *(uint8_t*)0x200009ec = 0;
    *(uint8_t*)0x200009ed = 0;
    *(uint8_t*)0x200009ee = 0;
    *(uint8_t*)0x200009ef = 0;
    *(uint8_t*)0x200009f0 = 0;
    *(uint8_t*)0x200009f1 = 0;
    *(uint8_t*)0x200009f2 = 0;
    *(uint8_t*)0x200009f3 = 0;
    *(uint8_t*)0x200009f4 = 0;
    *(uint8_t*)0x200009f5 = 0;
    *(uint8_t*)0x200009f6 = 0;
    *(uint8_t*)0x200009f7 = 0;
    *(uint8_t*)0x200009f8 = 0;
    *(uint8_t*)0x200009f9 = 0;
    *(uint8_t*)0x200009fa = 0;
    *(uint8_t*)0x200009fb = 0;
    *(uint8_t*)0x200009fc = 0;
    *(uint8_t*)0x200009fd = 0;
    *(uint8_t*)0x200009fe = 0;
    *(uint8_t*)0x200009ff = 0;
    *(uint8_t*)0x20000a00 = 0;
    *(uint8_t*)0x20000a01 = 0;
    *(uint8_t*)0x20000a02 = 0;
    *(uint8_t*)0x20000a03 = 0;
    *(uint8_t*)0x20000a04 = 0;
    *(uint8_t*)0x20000a05 = 0;
    *(uint8_t*)0x20000a06 = 0;
    *(uint8_t*)0x20000a07 = 0;
    *(uint8_t*)0x20000a08 = 0;
    *(uint8_t*)0x20000a09 = 0;
    *(uint8_t*)0x20000a0a = 0;
    *(uint8_t*)0x20000a0b = 0;
    *(uint8_t*)0x20000a0c = 0;
    *(uint8_t*)0x20000a0d = 0;
    *(uint8_t*)0x20000a0e = 0;
    *(uint8_t*)0x20000a0f = 0;
    *(uint8_t*)0x20000a10 = 0;
    *(uint8_t*)0x20000a11 = 0;
    *(uint8_t*)0x20000a12 = 0;
    *(uint8_t*)0x20000a13 = 0;
    *(uint8_t*)0x20000a14 = 0;
    *(uint8_t*)0x20000a15 = 0;
    *(uint8_t*)0x20000a16 = 0;
    *(uint8_t*)0x20000a17 = 0;
    *(uint8_t*)0x20000a18 = 0;
    *(uint8_t*)0x20000a19 = 0;
    *(uint8_t*)0x20000a1a = 0;
    *(uint8_t*)0x20000a1b = 0;
    *(uint8_t*)0x20000a1c = 0;
    *(uint8_t*)0x20000a1d = 0;
    *(uint8_t*)0x20000a1e = 0;
    *(uint8_t*)0x20000a1f = 0;
    *(uint8_t*)0x20000a20 = 0;
    *(uint8_t*)0x20000a21 = 0;
    *(uint8_t*)0x20000a22 = 0;
    *(uint8_t*)0x20000a23 = 0;
    *(uint8_t*)0x20000a24 = 0;
    *(uint8_t*)0x20000a25 = 0;
    *(uint8_t*)0x20000a26 = 0;
    *(uint8_t*)0x20000a27 = 0;
    *(uint8_t*)0x20000a28 = 0;
    *(uint8_t*)0x20000a29 = 0;
    *(uint8_t*)0x20000a2a = 0;
    *(uint8_t*)0x20000a2b = 0;
    *(uint8_t*)0x20000a2c = 0;
    *(uint8_t*)0x20000a2d = 0;
    *(uint8_t*)0x20000a2e = 0;
    *(uint8_t*)0x20000a2f = 0;
    *(uint8_t*)0x20000a30 = 0;
    *(uint8_t*)0x20000a31 = 0;
    *(uint8_t*)0x20000a32 = 0;
    *(uint8_t*)0x20000a33 = 0;
    *(uint8_t*)0x20000a34 = 0;
    *(uint8_t*)0x20000a35 = 0;
    *(uint8_t*)0x20000a36 = 0;
    *(uint8_t*)0x20000a37 = 0;
    *(uint8_t*)0x20000a38 = 0;
    *(uint8_t*)0x20000a39 = 0;
    *(uint8_t*)0x20000a3a = 0;
    *(uint8_t*)0x20000a3b = 0;
    *(uint8_t*)0x20000a3c = 0;
    *(uint8_t*)0x20000a3d = 0;
    *(uint8_t*)0x20000a3e = 0;
    *(uint8_t*)0x20000a3f = 0;
    *(uint8_t*)0x20000a40 = 0;
    *(uint8_t*)0x20000a41 = 0;
    *(uint8_t*)0x20000a42 = 0;
    *(uint8_t*)0x20000a43 = 0;
    *(uint8_t*)0x20000a44 = 0;
    *(uint8_t*)0x20000a45 = 0;
    *(uint8_t*)0x20000a46 = 0;
    *(uint8_t*)0x20000a47 = 0;
    *(uint8_t*)0x20000a48 = 0;
    *(uint8_t*)0x20000a49 = 0;
    *(uint8_t*)0x20000a4a = 0;
    *(uint8_t*)0x20000a4b = 0;
    *(uint8_t*)0x20000a4c = 0;
    *(uint8_t*)0x20000a4d = 0;
    *(uint8_t*)0x20000a4e = 0;
    *(uint8_t*)0x20000a4f = 0;
    *(uint8_t*)0x20000a50 = 0;
    *(uint8_t*)0x20000a51 = 0;
    *(uint8_t*)0x20000a52 = 0;
    *(uint8_t*)0x20000a53 = 0;
    *(uint8_t*)0x20000a54 = 0;
    *(uint8_t*)0x20000a55 = 0;
    *(uint8_t*)0x20000a56 = 0;
    *(uint8_t*)0x20000a57 = 0;
    *(uint8_t*)0x20000a58 = 0;
    *(uint8_t*)0x20000a59 = 0;
    *(uint8_t*)0x20000a5a = 0;
    *(uint8_t*)0x20000a5b = 0;
    *(uint8_t*)0x20000a5c = 0;
    *(uint8_t*)0x20000a5d = 0;
    *(uint8_t*)0x20000a5e = 0;
    *(uint8_t*)0x20000a5f = 0;
    *(uint8_t*)0x20000a60 = 0;
    *(uint8_t*)0x20000a61 = 0;
    *(uint8_t*)0x20000a62 = 0;
    *(uint8_t*)0x20000a63 = 0;
    *(uint8_t*)0x20000a64 = 0;
    *(uint8_t*)0x20000a65 = 0;
    *(uint8_t*)0x20000a66 = 0;
    *(uint8_t*)0x20000a67 = 0;
    *(uint32_t*)0x20000a68 = 0;
    *(uint16_t*)0x20000a6c = 0xa8;
    *(uint16_t*)0x20000a6e = 0xd0;
    *(uint32_t*)0x20000a70 = 0;
    *(uint64_t*)0x20000a78 = 0;
    *(uint64_t*)0x20000a80 = 0;
    *(uint16_t*)0x20000a88 = 0x28;
    memcpy((void*)0x20000a8a,
           "SET\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000aa7 = 1;
    *(uint16_t*)0x20000aa8 = -1;
    *(uint8_t*)0x20000aaa = 0;
    *(uint8_t*)0x20000aab = 0;
    *(uint16_t*)0x20000aac = -1;
    *(uint8_t*)0x20000aae = 0;
    *(uint8_t*)0x20000aaf = 0;
    *(uint64_t*)0x20000ab0 = htobe64(0);
    *(uint64_t*)0x20000ab8 = htobe64(1);
    *(uint8_t*)0x20000ac0 = 0xfc;
    *(uint8_t*)0x20000ac1 = 0;
    *(uint8_t*)0x20000ac2 = 0;
    *(uint8_t*)0x20000ac3 = 0;
    *(uint8_t*)0x20000ac4 = 0;
    *(uint8_t*)0x20000ac5 = 0;
    *(uint8_t*)0x20000ac6 = 0;
    *(uint8_t*)0x20000ac7 = 0;
    *(uint8_t*)0x20000ac8 = 0;
    *(uint8_t*)0x20000ac9 = 0;
    *(uint8_t*)0x20000aca = 0;
    *(uint8_t*)0x20000acb = 0;
    *(uint8_t*)0x20000acc = 0;
    *(uint8_t*)0x20000acd = 0;
    *(uint8_t*)0x20000ace = 0;
    *(uint8_t*)0x20000acf = 0;
    *(uint32_t*)0x20000ad0 = htobe32(0);
    *(uint32_t*)0x20000ad4 = htobe32(0);
    *(uint32_t*)0x20000ad8 = htobe32(0);
    *(uint32_t*)0x20000adc = htobe32(0);
    *(uint32_t*)0x20000ae0 = htobe32(0);
    *(uint32_t*)0x20000ae4 = htobe32(0);
    *(uint32_t*)0x20000ae8 = htobe32(0);
    *(uint32_t*)0x20000aec = htobe32(0);
    memcpy((void*)0x20000af0, "veth1_to_bond\000\000\000", 16);
    memcpy((void*)0x20000b00, "macsec0\000\000\000\000\000\000\000\000\000",
           16);
    *(uint8_t*)0x20000b10 = 0;
    *(uint8_t*)0x20000b20 = 0;
    *(uint16_t*)0x20000b30 = 0;
    *(uint8_t*)0x20000b32 = 0;
    *(uint8_t*)0x20000b33 = 0;
    *(uint8_t*)0x20000b34 = 0;
    *(uint32_t*)0x20000b38 = 0;
    *(uint16_t*)0x20000b3c = 0xa8;
    *(uint16_t*)0x20000b3e = 0xf0;
    *(uint32_t*)0x20000b40 = 0;
    *(uint64_t*)0x20000b48 = 0;
    *(uint64_t*)0x20000b50 = 0;
    *(uint16_t*)0x20000b58 = 0x48;
    memcpy((void*)0x20000b5a,
           "TEE\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000b77 = 1;
    *(uint8_t*)0x20000b78 = -1;
    *(uint8_t*)0x20000b79 = 2;
    *(uint8_t*)0x20000b7a = 0;
    *(uint8_t*)0x20000b7b = 0;
    *(uint8_t*)0x20000b7c = 0;
    *(uint8_t*)0x20000b7d = 0;
    *(uint8_t*)0x20000b7e = 0;
    *(uint8_t*)0x20000b7f = 0;
    *(uint8_t*)0x20000b80 = 0;
    *(uint8_t*)0x20000b81 = 0;
    *(uint8_t*)0x20000b82 = 0;
    *(uint8_t*)0x20000b83 = 0;
    *(uint8_t*)0x20000b84 = 0;
    *(uint8_t*)0x20000b85 = 0;
    *(uint8_t*)0x20000b86 = 0;
    *(uint8_t*)0x20000b87 = 1;
    memcpy((void*)0x20000b88, "netdevsim0\000\000\000\000\000\000", 16);
    *(uint64_t*)0x20000b98 = 0;
    *(uint8_t*)0x20000ba0 = 0xfe;
    *(uint8_t*)0x20000ba1 = 0x80;
    *(uint8_t*)0x20000ba2 = 0;
    *(uint8_t*)0x20000ba3 = 0;
    *(uint8_t*)0x20000ba4 = 0;
    *(uint8_t*)0x20000ba5 = 0;
    *(uint8_t*)0x20000ba6 = 0;
    *(uint8_t*)0x20000ba7 = 0;
    *(uint8_t*)0x20000ba8 = 0;
    *(uint8_t*)0x20000ba9 = 0;
    *(uint8_t*)0x20000baa = 0;
    *(uint8_t*)0x20000bab = 0;
    *(uint8_t*)0x20000bac = 0;
    *(uint8_t*)0x20000bad = 0;
    *(uint8_t*)0x20000bae = 0;
    *(uint8_t*)0x20000baf = 0xaa;
    *(uint8_t*)0x20000bb0 = 0xfe;
    *(uint8_t*)0x20000bb1 = 0x80;
    *(uint8_t*)0x20000bb2 = 0;
    *(uint8_t*)0x20000bb3 = 0;
    *(uint8_t*)0x20000bb4 = 0;
    *(uint8_t*)0x20000bb5 = 0;
    *(uint8_t*)0x20000bb6 = 0;
    *(uint8_t*)0x20000bb7 = 0;
    *(uint8_t*)0x20000bb8 = 0;
    *(uint8_t*)0x20000bb9 = 0;
    *(uint8_t*)0x20000bba = 0;
    *(uint8_t*)0x20000bbb = 0;
    *(uint8_t*)0x20000bbc = 0;
    *(uint8_t*)0x20000bbd = 0;
    *(uint8_t*)0x20000bbe = 0;
    *(uint8_t*)0x20000bbf = 0xaa;
    *(uint32_t*)0x20000bc0 = htobe32(0);
    *(uint32_t*)0x20000bc4 = htobe32(0);
    *(uint32_t*)0x20000bc8 = htobe32(0);
    *(uint32_t*)0x20000bcc = htobe32(0);
    *(uint32_t*)0x20000bd0 = htobe32(0);
    *(uint32_t*)0x20000bd4 = htobe32(0);
    *(uint32_t*)0x20000bd8 = htobe32(0);
    *(uint32_t*)0x20000bdc = htobe32(0);
    memcpy((void*)0x20000be0,
           "vlan1\000\000\000\000\000\000\000\000\000\000\000", 16);
    memcpy((void*)0x20000bf0, "ipvlan0\000\000\000\000\000\000\000\000\000",
           16);
    *(uint8_t*)0x20000c00 = 0;
    *(uint8_t*)0x20000c10 = 0;
    *(uint16_t*)0x20000c20 = 0x11;
    *(uint8_t*)0x20000c22 = 0;
    *(uint8_t*)0x20000c23 = 0;
    *(uint8_t*)0x20000c24 = 0;
    *(uint32_t*)0x20000c28 = 0;
    *(uint16_t*)0x20000c2c = 0xd8;
    *(uint16_t*)0x20000c2e = 0x100;
    *(uint32_t*)0x20000c30 = 0;
    *(uint64_t*)0x20000c38 = 0;
    *(uint64_t*)0x20000c40 = 0;
    *(uint16_t*)0x20000c48 = 0x30;
    memcpy((void*)0x20000c4a,
           "l2tp\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000c67 = 0;
    *(uint32_t*)0x20000c68 = 0;
    *(uint32_t*)0x20000c6c = 0;
    *(uint8_t*)0x20000c70 = 2;
    *(uint8_t*)0x20000c71 = 0;
    *(uint8_t*)0x20000c72 = 0xc;
    *(uint16_t*)0x20000c78 = 0x28;
    memcpy((void*)0x20000c7a,
           "REJECT\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000c97 = 0;
    *(uint32_t*)0x20000c98 = 0;
    *(uint8_t*)0x20000ca0 = 0;
    *(uint8_t*)0x20000ca1 = 0;
    *(uint8_t*)0x20000ca2 = 0;
    *(uint8_t*)0x20000ca3 = 0;
    *(uint8_t*)0x20000ca4 = 0;
    *(uint8_t*)0x20000ca5 = 0;
    *(uint8_t*)0x20000ca6 = 0;
    *(uint8_t*)0x20000ca7 = 0;
    *(uint8_t*)0x20000ca8 = 0;
    *(uint8_t*)0x20000ca9 = 0;
    *(uint8_t*)0x20000caa = 0;
    *(uint8_t*)0x20000cab = 0;
    *(uint8_t*)0x20000cac = 0;
    *(uint8_t*)0x20000cad = 0;
    *(uint8_t*)0x20000cae = 0;
    *(uint8_t*)0x20000caf = 0;
    *(uint8_t*)0x20000cb0 = 0;
    *(uint8_t*)0x20000cb1 = 0;
    *(uint8_t*)0x20000cb2 = 0;
    *(uint8_t*)0x20000cb3 = 0;
    *(uint8_t*)0x20000cb4 = 0;
    *(uint8_t*)0x20000cb5 = 0;
    *(uint8_t*)0x20000cb6 = 0;
    *(uint8_t*)0x20000cb7 = 0;
    *(uint8_t*)0x20000cb8 = 0;
    *(uint8_t*)0x20000cb9 = 0;
    *(uint8_t*)0x20000cba = 0;
    *(uint8_t*)0x20000cbb = 0;
    *(uint8_t*)0x20000cbc = 0;
    *(uint8_t*)0x20000cbd = 0;
    *(uint8_t*)0x20000cbe = 0;
    *(uint8_t*)0x20000cbf = 0;
    *(uint8_t*)0x20000cc0 = 0;
    *(uint8_t*)0x20000cc1 = 0;
    *(uint8_t*)0x20000cc2 = 0;
    *(uint8_t*)0x20000cc3 = 0;
    *(uint8_t*)0x20000cc4 = 0;
    *(uint8_t*)0x20000cc5 = 0;
    *(uint8_t*)0x20000cc6 = 0;
    *(uint8_t*)0x20000cc7 = 0;
    *(uint8_t*)0x20000cc8 = 0;
    *(uint8_t*)0x20000cc9 = 0;
    *(uint8_t*)0x20000cca = 0;
    *(uint8_t*)0x20000ccb = 0;
    *(uint8_t*)0x20000ccc = 0;
    *(uint8_t*)0x20000ccd = 0;
    *(uint8_t*)0x20000cce = 0;
    *(uint8_t*)0x20000ccf = 0;
    *(uint8_t*)0x20000cd0 = 0;
    *(uint8_t*)0x20000cd1 = 0;
    *(uint8_t*)0x20000cd2 = 0;
    *(uint8_t*)0x20000cd3 = 0;
    *(uint8_t*)0x20000cd4 = 0;
    *(uint8_t*)0x20000cd5 = 0;
    *(uint8_t*)0x20000cd6 = 0;
    *(uint8_t*)0x20000cd7 = 0;
    *(uint8_t*)0x20000cd8 = 0;
    *(uint8_t*)0x20000cd9 = 0;
    *(uint8_t*)0x20000cda = 0;
    *(uint8_t*)0x20000cdb = 0;
    *(uint8_t*)0x20000cdc = 0;
    *(uint8_t*)0x20000cdd = 0;
    *(uint8_t*)0x20000cde = 0;
    *(uint8_t*)0x20000cdf = 0;
    *(uint8_t*)0x20000ce0 = 0;
    *(uint8_t*)0x20000ce1 = 0;
    *(uint8_t*)0x20000ce2 = 0;
    *(uint8_t*)0x20000ce3 = 0;
    *(uint8_t*)0x20000ce4 = 0;
    *(uint8_t*)0x20000ce5 = 0;
    *(uint8_t*)0x20000ce6 = 0;
    *(uint8_t*)0x20000ce7 = 0;
    *(uint8_t*)0x20000ce8 = 0;
    *(uint8_t*)0x20000ce9 = 0;
    *(uint8_t*)0x20000cea = 0;
    *(uint8_t*)0x20000ceb = 0;
    *(uint8_t*)0x20000cec = 0;
    *(uint8_t*)0x20000ced = 0;
    *(uint8_t*)0x20000cee = 0;
    *(uint8_t*)0x20000cef = 0;
    *(uint8_t*)0x20000cf0 = 0;
    *(uint8_t*)0x20000cf1 = 0;
    *(uint8_t*)0x20000cf2 = 0;
    *(uint8_t*)0x20000cf3 = 0;
    *(uint8_t*)0x20000cf4 = 0;
    *(uint8_t*)0x20000cf5 = 0;
    *(uint8_t*)0x20000cf6 = 0;
    *(uint8_t*)0x20000cf7 = 0;
    *(uint8_t*)0x20000cf8 = 0;
    *(uint8_t*)0x20000cf9 = 0;
    *(uint8_t*)0x20000cfa = 0;
    *(uint8_t*)0x20000cfb = 0;
    *(uint8_t*)0x20000cfc = 0;
    *(uint8_t*)0x20000cfd = 0;
    *(uint8_t*)0x20000cfe = 0;
    *(uint8_t*)0x20000cff = 0;
    *(uint8_t*)0x20000d00 = 0;
    *(uint8_t*)0x20000d01 = 0;
    *(uint8_t*)0x20000d02 = 0;
    *(uint8_t*)0x20000d03 = 0;
    *(uint8_t*)0x20000d04 = 0;
    *(uint8_t*)0x20000d05 = 0;
    *(uint8_t*)0x20000d06 = 0;
    *(uint8_t*)0x20000d07 = 0;
    *(uint8_t*)0x20000d08 = 0;
    *(uint8_t*)0x20000d09 = 0;
    *(uint8_t*)0x20000d0a = 0;
    *(uint8_t*)0x20000d0b = 0;
    *(uint8_t*)0x20000d0c = 0;
    *(uint8_t*)0x20000d0d = 0;
    *(uint8_t*)0x20000d0e = 0;
    *(uint8_t*)0x20000d0f = 0;
    *(uint8_t*)0x20000d10 = 0;
    *(uint8_t*)0x20000d11 = 0;
    *(uint8_t*)0x20000d12 = 0;
    *(uint8_t*)0x20000d13 = 0;
    *(uint8_t*)0x20000d14 = 0;
    *(uint8_t*)0x20000d15 = 0;
    *(uint8_t*)0x20000d16 = 0;
    *(uint8_t*)0x20000d17 = 0;
    *(uint8_t*)0x20000d18 = 0;
    *(uint8_t*)0x20000d19 = 0;
    *(uint8_t*)0x20000d1a = 0;
    *(uint8_t*)0x20000d1b = 0;
    *(uint8_t*)0x20000d1c = 0;
    *(uint8_t*)0x20000d1d = 0;
    *(uint8_t*)0x20000d1e = 0;
    *(uint8_t*)0x20000d1f = 0;
    *(uint8_t*)0x20000d20 = 0;
    *(uint8_t*)0x20000d21 = 0;
    *(uint8_t*)0x20000d22 = 0;
    *(uint8_t*)0x20000d23 = 0;
    *(uint8_t*)0x20000d24 = 0;
    *(uint8_t*)0x20000d25 = 0;
    *(uint8_t*)0x20000d26 = 0;
    *(uint8_t*)0x20000d27 = 0;
    *(uint32_t*)0x20000d28 = 0;
    *(uint16_t*)0x20000d2c = 0xa8;
    *(uint16_t*)0x20000d2e = 0xd0;
    *(uint32_t*)0x20000d30 = 0;
    *(uint64_t*)0x20000d38 = 0;
    *(uint64_t*)0x20000d40 = 0;
    *(uint16_t*)0x20000d48 = 0x28;
    memcpy((void*)0x20000d4a,
           "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
           "\000\000\000\000\000\000\000\000\000\000\000\000\000",
           29);
    *(uint8_t*)0x20000d67 = 0;
    *(uint32_t*)0x20000d68 = 0xfffffffe;
    syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000980ul, 0x401ul);
    break;
  case 5:
    res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
    if (res != -1)
      r[1] = res;
    break;
  case 6:
    *(uint64_t*)0x20000100 = 0;
    *(uint32_t*)0x20000108 = 0;
    *(uint64_t*)0x20000110 = 0x200000c0;
    *(uint64_t*)0x200000c0 = 0x20000040;
    *(uint32_t*)0x20000040 = 0x2c;
    *(uint8_t*)0x20000044 = 0;
    *(uint8_t*)0x20000045 = 0xb;
    *(uint16_t*)0x20000046 = 5;
    *(uint32_t*)0x20000048 = 0;
    *(uint32_t*)0x2000004c = 0;
    *(uint8_t*)0x20000050 = 2;
    *(uint8_t*)0x20000051 = 0;
    *(uint16_t*)0x20000052 = htobe16(0);
    *(uint16_t*)0x20000054 = 8;
    *(uint16_t*)0x20000056 = 1;
    memcpy((void*)0x20000058, "\000\000\000\000", 4);
    *(uint16_t*)0x2000005c = 8;
    STORE_BY_BITMASK(uint16_t, , 0x2000005e, 2, 0, 14);
    STORE_BY_BITMASK(uint16_t, , 0x2000005f, 1, 6, 1);
    STORE_BY_BITMASK(uint16_t, , 0x2000005f, 0, 7, 1);
    *(uint32_t*)0x20000060 = htobe32(0);
    *(uint16_t*)0x20000064 = 8;
    STORE_BY_BITMASK(uint16_t, , 0x20000066, 3, 0, 14);
    STORE_BY_BITMASK(uint16_t, , 0x20000067, 1, 6, 1);
    STORE_BY_BITMASK(uint16_t, , 0x20000067, 0, 7, 1);
    *(uint32_t*)0x20000068 = htobe32(1);
    *(uint64_t*)0x200000c8 = 0x2c;
    *(uint64_t*)0x20000118 = 1;
    *(uint64_t*)0x20000120 = 0;
    *(uint64_t*)0x20000128 = 0;
    *(uint32_t*)0x20000130 = 0;
    syscall(__NR_sendmsg, r[1], 0x20000100ul, 0ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  do_sandbox_none();
  return 0;
}