// 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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    res = syscall(__NR_socket, 0xaul, 0x80002ul, 0);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    memcpy((void*)0x20000ac0,
           "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*)0x20000ae0 = 0xe;
    *(uint32_t*)0x20000ae4 = 4;
    *(uint32_t*)0x20000ae8 = 0x400;
    *(uint32_t*)0x20000aec = 0xd0;
    *(uint32_t*)0x20000af0 = 0x1f8;
    *(uint32_t*)0x20000af4 = 0;
    *(uint32_t*)0x20000af8 = 0x1f8;
    *(uint32_t*)0x20000afc = 0xd0;
    *(uint32_t*)0x20000b00 = 0x2c0;
    *(uint32_t*)0x20000b04 = 0x330;
    *(uint32_t*)0x20000b08 = 0x330;
    *(uint32_t*)0x20000b0c = 0x330;
    *(uint32_t*)0x20000b10 = 0x2c0;
    *(uint32_t*)0x20000b14 = 4;
    *(uint64_t*)0x20000b18 = 0;
    memset((void*)0x20000b20, 0, 136);
    *(uint32_t*)0x20000ba8 = 0;
    *(uint16_t*)0x20000bac = 0xa8;
    *(uint16_t*)0x20000bae = 0x108;
    *(uint32_t*)0x20000bb0 = 0;
    *(uint64_t*)0x20000bb8 = 0;
    *(uint64_t*)0x20000bc0 = 0;
    *(uint16_t*)0x20000bc8 = 0x60;
    memcpy((void*)0x20000bca,
           "HMARK\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*)0x20000be7 = 0;
    *(uint32_t*)0x20000be8 = htobe32(-1);
    *(uint32_t*)0x20000bf8 = htobe32(0);
    *(uint32_t*)0x20000bfc = htobe32(0);
    *(uint32_t*)0x20000c00 = htobe32(0);
    *(uint32_t*)0x20000c04 = htobe32(0);
    *(uint16_t*)0x20000c08 = htobe16(0);
    *(uint16_t*)0x20000c0a = htobe16(0);
    *(uint16_t*)0x20000c0c = htobe16(0);
    *(uint16_t*)0x20000c0e = htobe16(0);
    *(uint32_t*)0x20000c10 = 0;
    *(uint16_t*)0x20000c14 = 0;
    *(uint32_t*)0x20000c18 = 0;
    *(uint32_t*)0x20000c1c = 4;
    *(uint32_t*)0x20000c20 = 0;
    *(uint8_t*)0x20000c28 = 0xfe;
    *(uint8_t*)0x20000c29 = 0x88;
    memset((void*)0x20000c2a, 0, 12);
    *(uint8_t*)0x20000c36 = 0;
    *(uint8_t*)0x20000c37 = 1;
    memset((void*)0x20000c38, 0, 10);
    memset((void*)0x20000c42, 255, 2);
    *(uint8_t*)0x20000c44 = 0xac;
    *(uint8_t*)0x20000c45 = 0x14;
    *(uint8_t*)0x20000c46 = 0x14;
    *(uint8_t*)0x20000c47 = 0xbb;
    *(uint32_t*)0x20000c48 = htobe32(0);
    *(uint32_t*)0x20000c4c = htobe32(0);
    *(uint32_t*)0x20000c50 = htobe32(0);
    *(uint32_t*)0x20000c54 = htobe32(0);
    *(uint32_t*)0x20000c58 = htobe32(0);
    *(uint32_t*)0x20000c5c = htobe32(0);
    *(uint32_t*)0x20000c60 = htobe32(0);
    *(uint32_t*)0x20000c64 = htobe32(0);
    memcpy((void*)0x20000c68,
           "vlan0\000\000\000\000\000\000\000\000\000\000\000", 16);
    memcpy((void*)0x20000c78, "syzkaller0\000\000\000\000\000\000", 16);
    *(uint8_t*)0x20000c88 = 0;
    *(uint8_t*)0x20000c98 = 0;
    *(uint16_t*)0x20000ca8 = 0;
    *(uint8_t*)0x20000caa = 0;
    *(uint8_t*)0x20000cab = 0;
    *(uint8_t*)0x20000cac = 0;
    *(uint32_t*)0x20000cb0 = 0;
    *(uint16_t*)0x20000cb4 = 0xa8;
    *(uint16_t*)0x20000cb6 = 0xf0;
    *(uint32_t*)0x20000cb8 = 0;
    *(uint64_t*)0x20000cc0 = 0;
    *(uint64_t*)0x20000cc8 = 0;
    *(uint16_t*)0x20000cd0 = 0x48;
    memcpy((void*)0x20000cd2,
           "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*)0x20000cef = 1;
    *(uint8_t*)0x20000cf0 = -1;
    *(uint8_t*)0x20000cf1 = 2;
    memset((void*)0x20000cf2, 0, 13);
    *(uint8_t*)0x20000cff = 1;
    memcpy((void*)0x20000d00, "netdevsim0\000\000\000\000\000\000", 16);
    *(uint64_t*)0x20000d10 = 0;
    *(uint8_t*)0x20000d18 = 0xfe;
    *(uint8_t*)0x20000d19 = 0x80;
    memset((void*)0x20000d1a, 0, 13);
    *(uint8_t*)0x20000d27 = 0xaa;
    *(uint8_t*)0x20000d28 = 0xfe;
    *(uint8_t*)0x20000d29 = 0x80;
    memset((void*)0x20000d2a, 0, 13);
    *(uint8_t*)0x20000d37 = 0;
    *(uint32_t*)0x20000d38 = htobe32(0);
    *(uint32_t*)0x20000d3c = htobe32(0);
    *(uint32_t*)0x20000d40 = htobe32(0);
    *(uint32_t*)0x20000d44 = htobe32(0);
    *(uint32_t*)0x20000d48 = htobe32(0);
    *(uint32_t*)0x20000d4c = htobe32(0);
    *(uint32_t*)0x20000d50 = htobe32(0);
    *(uint32_t*)0x20000d54 = htobe32(0);
    memcpy((void*)0x20000d58,
           "vlan1\000\000\000\000\000\000\000\000\000\000\000", 16);
    memcpy((void*)0x20000d68, "ipvlan0\000\000\000\000\000\000\000\000\000",
           16);
    *(uint8_t*)0x20000d78 = 0;
    *(uint8_t*)0x20000d88 = 0;
    *(uint16_t*)0x20000d98 = 0;
    *(uint8_t*)0x20000d9a = 0;
    *(uint8_t*)0x20000d9b = 0;
    *(uint8_t*)0x20000d9c = 0;
    *(uint32_t*)0x20000da0 = 0;
    *(uint16_t*)0x20000da4 = 0x110;
    *(uint16_t*)0x20000da6 = 0x138;
    *(uint32_t*)0x20000da8 = 0;
    *(uint64_t*)0x20000db0 = 0;
    *(uint64_t*)0x20000db8 = 0;
    *(uint16_t*)0x20000dc0 = 0x68;
    memcpy((void*)0x20000dc2,
           "iprange\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*)0x20000ddf = 1;
    *(uint8_t*)0x20000de0 = 0xfe;
    *(uint8_t*)0x20000de1 = 0x80;
    memset((void*)0x20000de2, 0, 13);
    *(uint8_t*)0x20000def = 0xaa;
    *(uint8_t*)0x20000df0 = 0xfe;
    *(uint8_t*)0x20000df1 = 0x80;
    memset((void*)0x20000df2, 0, 13);
    *(uint8_t*)0x20000dff = 0xbb;
    *(uint8_t*)0x20000e00 = 0xfe;
    *(uint8_t*)0x20000e01 = 0x80;
    memset((void*)0x20000e02, 0, 13);
    *(uint8_t*)0x20000e0f = 0;
    *(uint8_t*)0x20000e10 = 0xfc;
    *(uint8_t*)0x20000e11 = 1;
    memset((void*)0x20000e12, 0, 13);
    *(uint8_t*)0x20000e1f = 0;
    *(uint8_t*)0x20000e20 = 0x41;
    *(uint16_t*)0x20000e28 = 0x28;
    memcpy((void*)0x20000e2a,
           "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*)0x20000e47 = 0;
    *(uint32_t*)0x20000e48 = 0;
    memset((void*)0x20000e50, 0, 136);
    *(uint32_t*)0x20000ed8 = 0;
    *(uint16_t*)0x20000edc = 0xa8;
    *(uint16_t*)0x20000ede = 0xd0;
    *(uint32_t*)0x20000ee0 = 0;
    *(uint64_t*)0x20000ee8 = 0;
    *(uint64_t*)0x20000ef0 = 0;
    *(uint16_t*)0x20000ef8 = 0x28;
    memset((void*)0x20000efa, 0, 29);
    *(uint8_t*)0x20000f17 = 0;
    *(uint32_t*)0x20000f18 = 0xfffffffe;
    syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000ac0ul, 0x460ul);
    break;
  case 2:
    *(uint32_t*)0x2025c000 = 2;
    *(uint32_t*)0x2025c004 = 0x80;
    *(uint8_t*)0x2025c008 = 0;
    *(uint8_t*)0x2025c009 = 3;
    *(uint8_t*)0x2025c00a = 0;
    *(uint8_t*)0x2025c00b = 0;
    *(uint32_t*)0x2025c00c = 0;
    *(uint64_t*)0x2025c010 = 0;
    *(uint64_t*)0x2025c018 = 0;
    *(uint64_t*)0x2025c020 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 29, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 30, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 31, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 32, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 33, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 34, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 35, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 36, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 37, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 38, 26);
    *(uint32_t*)0x2025c030 = 0;
    *(uint32_t*)0x2025c034 = 0;
    *(uint64_t*)0x2025c038 = 0;
    *(uint64_t*)0x2025c040 = 0;
    *(uint64_t*)0x2025c048 = 0;
    *(uint64_t*)0x2025c050 = 0;
    *(uint32_t*)0x2025c058 = 0;
    *(uint32_t*)0x2025c05c = 0;
    *(uint64_t*)0x2025c060 = 0;
    *(uint32_t*)0x2025c068 = 0;
    *(uint16_t*)0x2025c06c = 0;
    *(uint16_t*)0x2025c06e = 0;
    *(uint32_t*)0x2025c070 = 0;
    *(uint32_t*)0x2025c074 = 0;
    *(uint64_t*)0x2025c078 = 0;
    res = syscall(__NR_perf_event_open, 0x2025c000ul, 0, 0ul, -1, 0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 3:
    memcpy((void*)0x20000080, "/dev/ppp\000", 9);
    syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000080ul, 0ul, 0ul);
    break;
  case 4:
    memcpy(
        (void*)0x20000000,
        "\211)o "
        "\352\253R\\\262\036\215\275\302\227\350\254^B\v\323\026}\202\303\372v",
        26);
    syscall(__NR_ioctl, r[1], 0xc004743e, 0x20000000ul);
    break;
  case 5:
    res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
    if (res != -1)
      r[2] = res;
    break;
  case 6:
    *(uint64_t*)0x20000100 = 0;
    *(uint32_t*)0x20000108 = 0;
    *(uint64_t*)0x20000110 = 0x200000c0;
    *(uint64_t*)0x200000c0 = 0x20000080;
    *(uint32_t*)0x20000080 = 0x2c;
    *(uint8_t*)0x20000084 = 0;
    *(uint8_t*)0x20000085 = 0xb;
    *(uint16_t*)0x20000086 = 0x801;
    *(uint32_t*)0x20000088 = 0;
    *(uint32_t*)0x2000008c = 0;
    *(uint8_t*)0x20000090 = 3;
    *(uint8_t*)0x20000091 = 0;
    *(uint16_t*)0x20000092 = htobe16(0);
    *(uint16_t*)0x20000094 = 8;
    STORE_BY_BITMASK(uint16_t, , 0x20000096, 3, 0, 14);
    STORE_BY_BITMASK(uint16_t, , 0x20000097, 1, 6, 1);
    STORE_BY_BITMASK(uint16_t, , 0x20000097, 0, 7, 1);
    *(uint32_t*)0x20000098 = htobe32(0);
    *(uint16_t*)0x2000009c = 8;
    STORE_BY_BITMASK(uint16_t, , 0x2000009e, 2, 0, 14);
    STORE_BY_BITMASK(uint16_t, , 0x2000009f, 1, 6, 1);
    STORE_BY_BITMASK(uint16_t, , 0x2000009f, 0, 7, 1);
    *(uint32_t*)0x200000a0 = htobe32(0);
    *(uint16_t*)0x200000a4 = 5;
    *(uint16_t*)0x200000a6 = 1;
    memset((void*)0x200000a8, 0, 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[2], 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;
}