// https://syzkaller.appspot.com/bug?id=fedaea90d3fb6c31b387ce47483cacf141af47d6
// 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 <netinet/in.h>
#include <pthread.h>
#include <setjmp.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/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/futex.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_link.h>
#include <linux/in6.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/veth.h>

#ifndef __NR_bind
#define __NR_bind 200
#endif
#ifndef __NR_bpf
#define __NR_bpf 280
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_sendto
#define __NR_sendto 206
#endif
#ifndef __NR_socket
#define __NR_socket 198
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

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 use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

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);
}

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 void netlink_nest(struct nlmsg* nlmsg, int typ)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_type = typ;
  nlmsg->pos += sizeof(*attr);
  nlmsg->nested[nlmsg->nesting++] = attr;
}

static void netlink_done(struct nlmsg* nlmsg)
{
  struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
  attr->nla_len = nlmsg->pos - (char*)attr;
}

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_add_device_impl(struct nlmsg* nlmsg, const char* type,
                                    const char* name, bool up)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  if (name)
    netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
  netlink_nest(nlmsg, IFLA_LINKINFO);
  netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}

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 struct nlmsg nlmsg;

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    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");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data))
      printf("write to %s failed: %s\n", files[i].name, strerror(errno));
  }
}

#define NL802154_CMD_SET_SHORT_ADDR 11
#define NL802154_ATTR_IFINDEX 3
#define NL802154_ATTR_SHORT_ADDR 10

static void setup_802154()
{
  int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock_route == -1)
    exit(1);
  int sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock_generic < 0)
    exit(1);
  int nl802154_family_id =
      netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true);
  for (int i = 0; i < 2; i++) {
    char devname[] = "wpan0";
    devname[strlen(devname) - 1] += i;
    uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8);
    uint16_t shortaddr = 0xaaa0 + i;
    int ifindex = if_nametoindex(devname);
    struct genlmsghdr genlhdr;
    memset(&genlhdr, 0, sizeof(genlhdr));
    genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR;
    netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr));
    netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
    netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr,
                 sizeof(shortaddr));
    int err = netlink_send(&nlmsg, sock_generic);
    if (err < 0) {
    }
    netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr,
                          sizeof(hwaddr), 0);
    if (i == 0) {
      netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0", false);
      netlink_done(&nlmsg);
      netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
      int err = netlink_send(&nlmsg, sock_route);
      if (err < 0) {
      }
    }
  }
  close(sock_route);
  close(sock_generic);
}

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 execute_one(void)
{
  int i, call, thread;
  for (call = 0; call < 8; 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);
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    res = syscall(__NR_socket, 2ul, 1ul, 0);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    NONFAILING(*(uint16_t*)0x20000000 = 2);
    NONFAILING(*(uint16_t*)0x20000002 = htobe16(0x4e20));
    NONFAILING(*(uint32_t*)0x20000004 = htobe32(0xe0000001));
    syscall(__NR_bind, r[0], 0x20000000ul, 0x10ul);
    break;
  case 2:
    NONFAILING(*(uint16_t*)0x200018c0 = 2);
    NONFAILING(*(uint16_t*)0x200018c2 = htobe16(0x4e20));
    NONFAILING(*(uint32_t*)0x200018c4 = htobe32(0));
    syscall(__NR_sendto, r[0], 0ul, 0ul, 0x20020094ul, 0x200018c0ul, 0x10ul);
    break;
  case 3:
    NONFAILING(memset((void*)0x200000c0, 176, 1));
    syscall(__NR_sendto, r[0], 0x200000c0ul, 1ul, 0ul, 0ul, 0ul);
    break;
  case 4:
    NONFAILING(*(uint32_t*)0x200001c0 = 0xe);
    NONFAILING(*(uint32_t*)0x200001c4 = 4);
    NONFAILING(*(uint64_t*)0x200001c8 = 0x20000ac0);
    NONFAILING(memcpy(
        (void*)0x20000ac0,
        "\xb4\x05\x00\x00\x20\x00\x80\x00\x61\x10\x00\x00\x00\x00\x00\x00\xc6"
        "\x00\x00\x00\x00\x00\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x9f\x33"
        "\xef\x60\x91\x6e\x6e\x89\x3f\x1e\xeb\x0b\xe2\x56\x6c\xd0\x72\x30\x43"
        "\xc4\x7c\x89\x6c\xe0\xbc\xe6\x6a\x24\x5a\xd9\x9b\x81\x7f\xd9\x8c\xd8"
        "\x24\x49\x89\x49\x71\x4f\xfa\xac\x8a\x6f\x77\xef\x26\xdc\xca\x55\x82"
        "\x05\x4d\x54\xd5\x3c\xd2\xb6\xdb\x71\x4e\x4b\x94\xbd\xae\x21\x4f\xa6"
        "\x8a\x05\x57\xeb\x2c\x5c\xa6\x83\xa4\xb6\xfc\x89\x39\x8f\x2b\x90\x00"
        "\xf2\x24\xd4\x42\x01\x7c\xfa\x6f\xa2\x6f\xa7\xa3\x47\x00\x45\x8c\x60"
        "\x89\x7d\x4a\x61\x48\xa1\xc1\x14\x28\x60\x03\x00\x00\x00\xbe\xac\x67"
        "\x1e\x8e\x8f\xde\xcb\x03\x58\x68\xa6\x23\xfa\x71\xf8\x71\xab\x5c\x2f"
        "\xf8\x8a\xfc\x60\x02\x08\x4e\x5b\x52\x71\x0a\xee\xe8\x35\xcf\x0d\x78"
        "\xc0\xa0\xe4\x5f\x00\x00\x38\x26\xfb\x85\x79\xc1\xfb\x01\xd2\xc5\x55"
        "\x3d\x2c\xcb\x5f\xc5\xb5\x1f\xe6\xb1\x74\xeb\xd9\x90\x7d\xcf\xf4\x14"
        "\xed\x55\xb0\xc2\x0c\xdb\xe7\x00\x9a\x6f\xe7\xcc\x78\x76\x2f\x1d\x4d"
        "\xcd\xbc\xa6\x49\x20\xdb\x9a\x50\xf8\x6c\x21\x63\x2f\xd3\x0b\x09\x00"
        "\x00\x00\x8b\xb7\x4e\x46\x70\xab\x6f\xbc\x44\x7a\x4b\xd3\x44\xe0\xbd"
        "\x74\x99\x05\xd3\x7e\xf6\x8e\x3b\x9d\xb8\x63\xd0\x8d\xd9\xd4\xe2\x35"
        "\x9c\x41\xcf\xb4\x26\xe1\x23\x0b\xc1\xcd\x4c\x02\xc4\x60\xce\xb4\x42"
        "\x76\xe9\xbd\x94\xd1\xc2\xe6\xd1\x7d\xc5\xc2\xed\xf3\x32\xa6\x2f\x5f"
        "\xe6\x8f\xbb\xbb\xfc\xfd\x78\xa9\xf3\xfd\xc1\xf5\x0c\x44\x5e\x3f\x10"
        "\xe7\x03\xcf\x05\xb9\x0f\xbf\x94\x0e\x66\x52\xd3\x77\x47\x4e\xd5\xf8"
        "\x16\xf6\x6a\xc3\x02\x74\x60\xae\x99\x1e\x7f\x83\xcd\xd7\xa7\xeb\x2a"
        "\x70\x03\xd1\xa6\xcf\x54\x78\x53\x35\x84\x96\x1c\x32\x9f\xcf\x4f\xed"
        "\x5c\x94\x55\x64\x0d\xcd\x28\x00\x00\x00\x00\x3f\x29\x15\xa3\x03\x9c"
        "\x9a\x78\xf6\x3b\x8e\xc7\xe6\x0a\x00\x00\xfe\xd7\xd6\x7c\x44\x0e\x23"
        "\xd1\x30\xe5\x1e\xea\x1e\x08\x5b\xeb\xab\xe7\x05\x9d\xe9\xcb\xfc\x51"
        "\x17\xc0\x24\x18\x5a\x06\x2a\xcb\x6b\x8e\xec\x31\xc2\x1b\x3a\xf8\xb9"
        "\xee\xdb\x46\x60\xed\x2d\xef\x7a\xcf\x2a\x33\xa3\x76\xa5\xcb\x7d\x42"
        "\x66\xd5\xb0\xbe\x14\x48\x8d\x14\xb4\x73\x50\x24\x86\xaf\x8d\xd6\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x6d\xa7\x62\x0f\xcd\x4c\x6a\x17\x7b\x8f\x8f\x99\x01\x08\xbb\xa0\x07"
        "\x63\xcf\x1d\xc9\x60\x38\xd0\xe7\x72\x3b\xbb\x2e\x91\x31\xa8\x4d\x8b"
        "\x2a\xe4\x83\xdf\x03\xce\x75\xf0\x3c\x2d\x4b\x34\x94\x1c\xd7\x70\x28"
        "\xa3\xe6\xe4\xc7\xff\x4f\xad\x91\x85\x85\x2b\xeb\xc2\x5b\x78\x62\x49"
        "\xe4\xea\x67\xc1\xef\x0e\x2b\x3a\x8b\x3c\xf9\x43\xa2\x1c\x13\x53\xd5"
        "\xca\x9e\xee\x8a\x1c\x50\x5d\x58\x91\x58\x21\x8b\xb4\x4a\x56\xf7\xbc"
        "\x24\xbd\x76\x2e\x0c\x6e\xff\xbc\x22\x1a\x49\x05\x51\xb9\xba\x94\x48"
        "\x5b\x8c\xa3\x34\xaf\x64\x16\x45\x11\x09\x95\xdd\xdc\xd2\x01\x12\x79"
        "\x4a\x44\x9a\x6c\x5e\xd6\x30\x73\xc6\x46\x33\xc0\x95\x30\xf7\x34\x23"
        "\xb5\xdd\x44\x9d\x1f\x55\x03\xdf\x69\xf5\xe5\x07\x67\x5e\xb0\x49\x0d"
        "\xa0\x26\xd3\x17\x82\x5e\x0f\xdb\xac\x3f\x9b\xe7\x49\xab\x8a\x02\x9c"
        "\x70\xc4\xbf\x38\x7a\xcc\x18\xa8\x1f\x90\x18\xca\xfc\xd6\x04\xd5\xa2"
        "\xa1\x10\x5c\xd2\x01\x68\x80\x94\x2b\xdd\x8e\x3e\xc3\x8a\x63\xb9\xec"
        "\x32\xaa\x82\x13\xb1\x88\xc9\xef\x64\x7d\x3c\x73\xd4\x81\x7e\xb4\x58"
        "\x76\x95\x75\x5b\xeb\x74\xd4\xe8\x79\x29\xdd\x8b\xe3\x6a\xb3\x5d\x43"
        "\xbe\x41\x49\xa4\x7a\xe6\x20\xc7\x30\xb6\x4c\x31\x17\x20\xc5\x2c\x2a"
        "\xfe\xd8\x6e\x79\x49\x5e\x26\xac\xcc\x01\xfa\x41\x00\x71\x85\x49\xab"
        "\x6e\x54\x67\x68\x91\xf0\xf0\xbd\x4a\xcc\xdb\x79\x38\x8c\x94\x97\xef"
        "\xff\xc1\xb6\xb1\xb7\xd4\xf1\x7d\x7a\x94\xc8\xfb\x49\xfb\x81\x2e\xd6"
        "\xf5\x57\x6f\x96\x34\x19\xc0\xe8\xd0\x48\xd3\xb3\xd8\x01\xfb\x16\x01"
        "\xae\xe4\xf3\x8d\xa5\x74\xdc\xe1\xef\x00\x70\x9d\x08\x10\x07\xf9\xdb"
        "\x88\xab\x45\x1e\x50\xbf\x4b\xf3\x9e\x19\x36\x79\x99\xae\xa8\xcd\x10"
        "\x5c\x3b\x98\x0a\xe5\xfa\xad\x0c\x1f\xc5\xfd\xe3\x44\x3f\xe8\x11\x83"
        "\xe3\x31\x15\xd2\xbb\xd2\x54\x5d\x6d\xd5\xbd\x82\x13\xd5\x88\x9d\x7d"
        "\x8e\xd0\x86\x1b\x3d\xab\x35\xce\x1e\xea\xfa\xdd\x6c\x95\xdf\x7b\xf2"
        "\x05\xab",
        937));
    NONFAILING(*(uint64_t*)0x200001d0 = 0x20003ff6);
    NONFAILING(memcpy((void*)0x20003ff6, "GPL\000", 4));
    NONFAILING(*(uint32_t*)0x200001d8 = 4);
    NONFAILING(*(uint32_t*)0x200001dc = 0xfd90);
    NONFAILING(*(uint64_t*)0x200001e0 = 0x2000cf3d);
    NONFAILING(*(uint32_t*)0x200001e8 = 0);
    NONFAILING(*(uint32_t*)0x200001ec = 0);
    NONFAILING(memset((void*)0x200001f0, 0, 16));
    NONFAILING(*(uint32_t*)0x20000200 = 0);
    NONFAILING(*(uint32_t*)0x20000204 = 0);
    NONFAILING(*(uint32_t*)0x20000208 = -1);
    NONFAILING(*(uint32_t*)0x2000020c = 8);
    NONFAILING(*(uint64_t*)0x20000210 = 0x20000000);
    NONFAILING(*(uint32_t*)0x20000000 = 0);
    NONFAILING(*(uint32_t*)0x20000004 = 0);
    NONFAILING(*(uint32_t*)0x20000218 = 0x366);
    NONFAILING(*(uint32_t*)0x2000021c = 0x10);
    NONFAILING(*(uint64_t*)0x20000220 = 0x20000000);
    NONFAILING(*(uint32_t*)0x20000000 = 0);
    NONFAILING(*(uint32_t*)0x20000004 = 0);
    NONFAILING(*(uint32_t*)0x20000008 = 0);
    NONFAILING(*(uint32_t*)0x2000000c = 0);
    NONFAILING(*(uint32_t*)0x20000228 = 0xffffff65);
    NONFAILING(*(uint32_t*)0x2000022c = 0);
    NONFAILING(*(uint32_t*)0x20000230 = -1);
    NONFAILING(*(uint32_t*)0x20000234 = 0);
    NONFAILING(*(uint64_t*)0x20000238 = 0);
    res = syscall(__NR_bpf, 5ul, 0x200001c0ul, 0x48ul);
    if (res != -1)
      r[1] = res;
    break;
  case 5:
    NONFAILING(*(uint32_t*)0x20000400 = 0xf);
    NONFAILING(*(uint32_t*)0x20000404 = 4);
    NONFAILING(*(uint32_t*)0x20000408 = 4);
    NONFAILING(*(uint32_t*)0x2000040c = 0x12);
    NONFAILING(*(uint32_t*)0x20000410 = 0);
    NONFAILING(*(uint32_t*)0x20000414 = -1);
    NONFAILING(*(uint32_t*)0x20000418 = 0);
    NONFAILING(memset((void*)0x2000041c, 0, 16));
    NONFAILING(*(uint32_t*)0x2000042c = 0);
    NONFAILING(*(uint32_t*)0x20000430 = -1);
    NONFAILING(*(uint32_t*)0x20000434 = 0);
    NONFAILING(*(uint32_t*)0x20000438 = 0);
    NONFAILING(*(uint32_t*)0x2000043c = 0);
    NONFAILING(*(uint64_t*)0x20000440 = 0);
    res = syscall(__NR_bpf, 0ul, 0x20000400ul, 0x48ul);
    if (res != -1)
      r[2] = res;
    break;
  case 6:
    NONFAILING(*(uint32_t*)0x20000080 = r[2]);
    NONFAILING(*(uint32_t*)0x20000084 = r[1]);
    NONFAILING(*(uint32_t*)0x20000088 = 5);
    NONFAILING(*(uint32_t*)0x2000008c = 0);
    syscall(__NR_bpf, 8ul, 0x20000080ul, 0x10ul);
    break;
  case 7:
    NONFAILING(*(uint32_t*)0x20000280 = r[2]);
    NONFAILING(*(uint64_t*)0x20000288 = 0x20000340);
    NONFAILING(*(uint64_t*)0x20000290 = 0x20000040);
    NONFAILING(*(uint32_t*)0x20000040 = r[0]);
    NONFAILING(*(uint64_t*)0x20000298 = 0);
    syscall(__NR_bpf, 2ul, 0x20000280ul, 0x20ul);
    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);
  setup_sysctl();
  setup_802154();
  install_segv_handler();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}