// https://syzkaller.appspot.com/bug?id=d71f28b21dad3419f79cf010f30167620cb0cfff
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.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/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/loop.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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);
}

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 fs_image_segment {
  void* data;
  uintptr_t size;
  uintptr_t offset;
};

#define IMAGE_MAX_SEGMENTS 4096
#define IMAGE_MAX_SIZE (129 << 20)

static unsigned long fs_image_segment_check(unsigned long size,
                                            unsigned long nsegs,
                                            struct fs_image_segment* segs)
{
  if (nsegs > IMAGE_MAX_SEGMENTS)
    nsegs = IMAGE_MAX_SEGMENTS;
  for (size_t i = 0; i < nsegs; i++) {
    if (segs[i].size > IMAGE_MAX_SIZE)
      segs[i].size = IMAGE_MAX_SIZE;
    segs[i].offset %= IMAGE_MAX_SIZE;
    if (segs[i].offset > IMAGE_MAX_SIZE - segs[i].size)
      segs[i].offset = IMAGE_MAX_SIZE - segs[i].size;
    if (size < segs[i].offset + segs[i].offset)
      size = segs[i].offset + segs[i].offset;
  }
  if (size > IMAGE_MAX_SIZE)
    size = IMAGE_MAX_SIZE;
  return size;
}
static int setup_loop_device(long unsigned size, long unsigned nsegs,
                             struct fs_image_segment* segs,
                             const char* loopname, int* memfd_p, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  size = fs_image_segment_check(size, nsegs, segs);
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (ftruncate(memfd, size)) {
    err = errno;
    goto error_close_memfd;
  }
  for (size_t i = 0; i < nsegs; i++) {
    if (pwrite(memfd, segs[i].data, segs[i].size, segs[i].offset) < 0) {
    }
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  *memfd_p = memfd;
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile unsigned long size,
                            volatile unsigned long nsegs,
                            volatile long segments, volatile long flags,
                            volatile long optsarg)
{
  struct fs_image_segment* segs = (struct fs_image_segment*)segments;
  int res = -1, err = 0, loopfd = -1, memfd = -1, need_loop_device = !!segs;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(size, nsegs, segs, loopname, &memfd, &loopfd) == -1)
      return -1;
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    if (strstr(opts, "errors=panic") || strstr(opts, "errors=remount-ro") == 0)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
  }

error_clear_loop:
  if (need_loop_device) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
    close(memfd);
  }
  errno = err;
  return res;
}

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 reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

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

static void setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/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/net/ipv4/ping_group_range", "0 65535"},
      {"/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));
  }
}

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 < 22; 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 + (call == 9 ? 50 : 0) + (call == 13 ? 500 : 0) +
                          (call == 16 ? 500 : 0) + (call == 18 ? 500 : 0));
      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++) {
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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;
    }
  }
}

uint64_t r[7] = {
    0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x0,
    0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    res = syscall(__NR_socket, 0x10ul, 3ul, 0);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    *(uint64_t*)0x20000180 = 0x20000240;
    memcpy((void*)0x20000240,
           "\x39\x00\x00\x00\x13\x00\x03\x47\x00\xbb\x65\xe1\xc3\xe4\xff\xff"
           "\x01\x00\x00\x00\x01\x00\x00\x00\x56\x00\x00\x00\x25\x00\x00\x00"
           "\x19\x00\x04\x00\x04\x00\x00\x00\x07\xfd\x17\xe5\xff\xff\x08\x00"
           "\x04\x00\x00\x00\x00\x00\x00\x00\x00",
           57);
    *(uint64_t*)0x20000188 = 0x39;
    syscall(__NR_writev, r[0], 0x20000180ul, 1ul);
    break;
  case 2:
    syscall(__NR_socket, 0x11ul, 0x800000003ul, 0);
    break;
  case 3:
    res = syscall(__NR_socket, 0x10ul, 3ul, 0);
    if (res != -1)
      r[1] = res;
    break;
  case 4:
    res = syscall(__NR_socket, 0x11ul, 0x800000003ul, 0);
    if (res != -1)
      r[2] = res;
    break;
  case 5:
    *(uint16_t*)0x20000100 = 0x11;
    memcpy((void*)0x20000102,
           "\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x44\x94\x4e\xeb\xa7\x1a"
           "\x49\x76\xe2\x52\x92\x2c\xb1\x8f\x6e\x2e\x2a\xba\x00\x00\x00\x01"
           "\x2e\x0b\x38\x36\x00\x54\x04\xb0\xe0\x30\x1a\x4c\xe8\x75\xf2\xe3"
           "\xff\x5f\x16\x3e\xe3\x40\xb7\x67\x95\x00\x80\x00\x00\x00\x00\x00"
           "\x00\x01\x01\x01\x3c\x58\x11\x03\x9e\x15\x77\x50\x27\xec\xce\x66"
           "\xfd\x79\x2b\xbf\x0e\x5b\xf5\xff\x1b\x08\x16\xf3\xf6\xdb\x1c\x00"
           "\x01\x00\x00\x00\x00\x00\x00\x00\x49\x74\x00\x00\x00\x00\x00\x00"
           "\x00\x06\xad\x8e\x5e\xcc\x32\x6d\x3a\x09\xff\xc2\xc6\x54",
           126);
    syscall(__NR_bind, r[2], 0x20000100ul, 0x80ul);
    break;
  case 6:
    *(uint32_t*)0x20000780 = 0x14;
    res = syscall(__NR_getsockname, r[2], 0x20000740ul, 0x20000780ul);
    if (res != -1)
      r[3] = *(uint32_t*)0x20000744;
    break;
  case 7:
    *(uint64_t*)0x20000000 = 0;
    *(uint32_t*)0x20000008 = 0xffff80fe;
    *(uint64_t*)0x20000010 = 0x20000040;
    *(uint64_t*)0x20000040 = 0x200007c0;
    *(uint32_t*)0x200007c0 = 0x40;
    *(uint16_t*)0x200007c4 = 0x14;
    *(uint16_t*)0x200007c6 = 0x121;
    *(uint32_t*)0x200007c8 = 0;
    *(uint32_t*)0x200007cc = 0;
    *(uint8_t*)0x200007d0 = 0xa;
    *(uint8_t*)0x200007d1 = 0;
    *(uint8_t*)0x200007d2 = 0;
    *(uint8_t*)0x200007d3 = 0;
    *(uint32_t*)0x200007d4 = r[3];
    *(uint16_t*)0x200007d8 = 0x14;
    *(uint16_t*)0x200007da = 2;
    *(uint64_t*)0x200007dc = htobe64(0xfec0ffff00000000);
    *(uint64_t*)0x200007e4 = htobe64(1);
    *(uint16_t*)0x200007ec = 0x14;
    *(uint16_t*)0x200007ee = 6;
    *(uint32_t*)0x200007f0 = 0;
    *(uint32_t*)0x200007f4 = 0xfffffffe;
    *(uint32_t*)0x200007f8 = 0;
    *(uint32_t*)0x200007fc = 0;
    *(uint64_t*)0x20000048 = 0x40;
    *(uint64_t*)0x20000018 = 1;
    *(uint64_t*)0x20000020 = 0;
    *(uint64_t*)0x20000028 = 0;
    *(uint32_t*)0x20000030 = 0;
    syscall(__NR_sendmsg, r[1], 0x20000000ul, 0ul);
    break;
  case 8:
    *(uint64_t*)0x20000000 = 0;
    *(uint32_t*)0x20000008 = 0;
    *(uint64_t*)0x20000010 = 0;
    *(uint64_t*)0x20000018 = 1;
    *(uint64_t*)0x20000020 = 0;
    *(uint64_t*)0x20000028 = 0;
    *(uint32_t*)0x20000030 = 0x20008005;
    syscall(__NR_sendmsg, -1, 0x20000000ul, 0ul);
    break;
  case 9:
    memcpy((void*)0x20000000, "f2fs\000", 5);
    memcpy((void*)0x20000080, "./file0\000", 8);
    memcpy((void*)0x200000c0, "lazytime", 8);
    *(uint8_t*)0x200000c8 = 0x2c;
    memcpy((void*)0x200000c9, "context", 7);
    *(uint8_t*)0x200000d0 = 0x3d;
    memcpy((void*)0x200000d1, "sysadm_u", 8);
    *(uint8_t*)0x200000d9 = 0x2c;
    memcpy((void*)0x200000da, "appraise", 8);
    *(uint8_t*)0x200000e2 = 0x2c;
    memcpy((void*)0x200000e3, "seclabel", 8);
    *(uint8_t*)0x200000eb = 0x2c;
    memcpy((void*)0x200000ec, "fowner>", 7);
    sprintf((char*)0x200000f3, "%020llu", (long long)0);
    *(uint8_t*)0x20000107 = 0x2c;
    *(uint8_t*)0x20000108 = 0;
    syz_mount_image(0x20000000, 0x20000080, 0, 0, 0x20000200, 0x3000009,
                    0x200000c0);
    break;
  case 10:
    res = syscall(__NR_socket, 0x10ul, 3ul, 0);
    if (res != -1)
      r[4] = res;
    break;
  case 11:
    *(uint64_t*)0x20000140 = 0;
    *(uint32_t*)0x20000148 = 0;
    *(uint64_t*)0x20000150 = 0x20000200;
    *(uint64_t*)0x20000200 = 0x20000540;
    memcpy((void*)0x20000540,
           "\x28\x00\x00\x00\x10\x00\x01\x08\x0e\x5e\x00\x00\x00\x54\x00\x00"
           "\x00\x00\x00\x00",
           20);
    *(uint32_t*)0x20000554 = 0;
    memcpy((void*)0x20000558, "\x00\x00\xf6\x9f\xd5\xfa\xf0\x00\x08\x00\x1b",
           11);
    *(uint64_t*)0x20000208 = 0x28;
    *(uint64_t*)0x20000158 = 1;
    *(uint64_t*)0x20000160 = 0;
    *(uint64_t*)0x20000168 = 0;
    *(uint32_t*)0x20000170 = 0;
    syscall(__NR_sendmsg, r[4], 0x20000140ul, 0ul);
    break;
  case 12:
    res = syscall(__NR_socket, 0x10ul, 3ul, 0);
    if (res != -1)
      r[5] = res;
    break;
  case 13:
    syscall(__NR_bpf, 0x11ul, 0ul, 0ul);
    break;
  case 14:
    memcpy((void*)0x200002c0, "syz1", 4);
    memcpy((void*)0x200002c4,
           "\x9d\xd3\x70\xcf\xa2\xc3\xd2\x61\x4f\x99\x3d\x1c\x70\x1a\xa3\x10"
           "\x4b\xb8\x48\xfe\xf9\xf2\xcf\x9b\xc1\xb7\x1b\x67\x36\x42\x1d\x88"
           "\x71\x22\x6f\x0f\x99\x48\xda\x11\x9f\xed\xc2\x32\xca\x9a\x63\x8b"
           "\x04\x44\xb0\x28\x44\x64\xc1\x97\xe8\xcf\x30\x1e\x49\xf1\x18\x09"
           "\xe2\xd9\xd9\xae\x37\x02",
           70);
    syscall(__NR_write, -1, 0x200002c0ul, 0x4aul);
    break;
  case 15:
    *(uint64_t*)0x20000380 = 0;
    *(uint32_t*)0x20000388 = 0x1503;
    *(uint64_t*)0x20000390 = 0x200001c0;
    *(uint64_t*)0x200001c0 = 0x20000280;
    *(uint32_t*)0x20000280 = 0x28;
    *(uint16_t*)0x20000284 = 0x10;
    *(uint16_t*)0x20000286 = 0x801;
    *(uint32_t*)0x20000288 = 0;
    *(uint32_t*)0x2000028c = 0;
    *(uint8_t*)0x20000290 = 0xc;
    *(uint8_t*)0x20000291 = 0;
    *(uint16_t*)0x20000292 = 0;
    *(uint32_t*)0x20000294 = 0;
    *(uint32_t*)0x20000298 = 3;
    *(uint32_t*)0x2000029c = 0;
    *(uint16_t*)0x200002a0 = 8;
    *(uint16_t*)0x200002a2 = 0x1b;
    *(uint32_t*)0x200002a4 = 0;
    *(uint64_t*)0x200001c8 = 0x28;
    *(uint64_t*)0x20000398 = 1;
    *(uint64_t*)0x200003a0 = 0;
    *(uint64_t*)0x200003a8 = 0;
    *(uint32_t*)0x200003b0 = 0;
    syscall(__NR_sendmsg, r[5], 0x20000380ul, 0ul);
    break;
  case 16:
    syscall(__NR_bpf, 5ul, 0ul, 0ul);
    break;
  case 17:
    syscall(__NR_write, -1, 0ul, 0x11ul);
    break;
  case 18:
    syscall(__NR_bpf, 0x11ul, 0ul, 0ul);
    break;
  case 19:
    res = syscall(__NR_socket, 0x10ul, 2ul, 0);
    if (res != -1)
      r[6] = res;
    break;
  case 20:
    memcpy((void*)0x20000100, "syztnl1\000\000\000\000\000\000\000\000\000",
           16);
    *(uint64_t*)0x20000110 = 0;
    syscall(__NR_ioctl, r[6], 0x89f2, 0x20000100ul);
    break;
  case 21:
    memcpy((void*)0x200000c0, "ip6gre0\000\000\000\000\000\000\000\000\000",
           16);
    *(uint64_t*)0x200000d0 = 0x20001340;
    memcpy((void*)0x20001340, "syztnl1\000\000\000\000\000\000\000\000\000",
           16);
    *(uint32_t*)0x20001350 = 0;
    *(uint8_t*)0x20001354 = 0;
    *(uint8_t*)0x20001355 = 0;
    *(uint8_t*)0x20001356 = 0;
    *(uint32_t*)0x20001358 = htobe32(0);
    *(uint32_t*)0x2000135c = 0;
    memcpy((void*)0x20001360,
           " \001\000\000\000\000\000\000\000\000\000\000\000\000\000\000", 16);
    *(uint8_t*)0x20001370 = -1;
    *(uint8_t*)0x20001371 = 5;
    memset((void*)0x20001372, 0, 13);
    *(uint8_t*)0x2000137f = 1;
    *(uint16_t*)0x20001380 = htobe16(0);
    *(uint16_t*)0x20001382 = htobe16(0);
    *(uint32_t*)0x20001384 = htobe32(0);
    *(uint32_t*)0x20001388 = htobe32(0);
    syscall(__NR_ioctl, r[6], 0x89f1, 0x200000c0ul);
    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();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}