// https://syzkaller.appspot.com/bug?id=1444535644f9fb5f9a881c9236aa7abf2806f39e
// 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 <setjmp.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/mman.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_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 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;
}

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  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;
    }
  }
  close(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 long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, loopfd = -1, need_loop_device = !!size;
  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(data, size, loopname, &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;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

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

#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 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");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

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 < 9; 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 == 0 ? 4000 : 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++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x200000c0, "nilfs2\000", 7);
    memcpy((void*)0x200001c0, "./file0\000", 8);
    memcpy(
        (void*)0x20000200,
        "\x00\xdb\x16\x82\x9f\x6f\x99\x74\x76\x6e\x02\x8c\x22\x38\x01\xfb\xf3"
        "\x46\xfb\xcb\x36\x1a\x39\xdd\xaf\x9d\x9f\xb2\x8d\x24\xc1\x8d\x3c\x0a"
        "\xf9\xa8\xab\x94\xc7\x94\x1e\x0e\x3c\x94\x75\xe6\x33\x59\xae\xd7\x87"
        "\x88\xf3\x6d\x3a\x46\xdb\x8a\xec\x83\x3c\x27\xbd\x3e\x04\xb3\x36\xaa"
        "\xd4\xe9\x44\x58\xea\x4c\x54\xb6\x93\x74\x6f\x77\x8a\xee\x57\x1c\x41"
        "\x96\x14\x00\x00\x00\x00\x05\x00\x00\x00\xa2\xa5\xd0\x6b\xe4\x98\x80"
        "\xdb\x3e\x32\x8d\x0e\xd6\xfe\x22\x2f\xcf\xd1\xfc\x41\x11\xdf\x02\x63"
        "\xd4\xe2\xe0\x5f\x9b\x2b\x79\x69\x94\xe1\x8b\x86\xf1\xe3\xf9\xcf\xaf"
        "\x3e\xf4\x89\xa9\xa6\x9a\x56\x99\x45\xd6\x5d\x01\x36\x81\xca\x1e\xdb"
        "\xb1\x9a\x3a\xb3\xd7\x9e\x2c\x96\xa3\xf2\x81",
        164);
    memcpy(
        (void*)0x20001540,
        "\x78\x9c\xec\xdd\x4b\x8c\x1c\x47\xdd\x00\xf0\xea\xd9\x9d\xf5\x33\x9f"
        "\xc7\xf9\x6c\xb2\x38\x26\xb1\x09\x24\xe1\x91\xdd\x78\xbd\x98\x87\x05"
        "\x71\x14\x5f\xb0\xe2\x88\x5b\xa4\x88\x8b\xe5\x38\xc1\xc2\x31\x08\x47"
        "\x82\x44\x39\xd8\x3e\x71\x23\x51\x64\xae\x3c\xc4\x29\x97\x08\x10\x12"
        "\xb9\x20\x2b\x27\x2e\x91\x88\x25\x2e\x39\x05\x0e\x1c\xb0\x8c\x14\x89"
        "\x03\x04\xec\x45\xde\xad\x9a\x9d\xfd\x7b\x46\x3d\xb3\xb6\x77\x76\x76"
        "\x7e\x3f\xa9\xb6\xa6\xba\x6a\xa6\xaa\x67\x7b\x7a\x7a\xba\xbb\xaa\x12"
        "\x30\xb6\x1a\x8b\x7f\xe7\xe7\xa7\xab\x94\x2e\xbd\xf3\xe6\xd1\xbf\x3f"
        "\xfc\xb7\x2d\x37\x97\x3c\xd1\x2e\xd1\x5a\xfc\x3b\xd9\x91\x6a\xa6\x94"
        "\xaa\x9c\x9e\x0c\xaf\xf7\xe1\xc4\x52\x7c\xfd\xa3\xd7\x4e\x76\x8b\xab"
        "\x34\xb7\xf8\xb7\xa4\xd3\x33\xd7\xda\xcf\xdd\x96\x52\x3a\x9f\xf6\xa5"
        "\xcb\xa9\x95\xf6\x5c\xba\xf2\xc6\x7b\x73\x4f\x1f\xbf\x70\xec\xe2\xfe"
        "\xf7\xdf\x3a\x7c\xf5\xee\xac\x3d\x00\x00\x8c\x97\x6f\x5d\x3e\x3c\xbf"
        "\xfb\x2f\x7f\xba\x7f\xe7\xc7\x6f\x3f\x70\x24\x6d\x6a\x2f\x2f\xc7\xe7"
        "\xad\x9c\xde\x9e\x8f\xfb\x8f\xe4\x03\xff\x72\xfc\xdf\x48\x2b\xd3\x55"
        "\x47\xe8\x34\x15\xca\x4d\xe6\xd0\x08\xe5\x26\xba\x94\xeb\xac\xa7\x19"
        "\xca\x4d\xf6\xa8\x7f\x2a\xbc\x6e\xb3\x47\xb9\x4d\x35\xf5\x4f\x74\x2c"
        "\xeb\xb6\xde\x30\xca\xca\x76\xdc\x4a\x55\x63\x66\x45\xba\xd1\x98\x99"
        "\x59\xfa\x4d\x9e\x16\x7f\xd7\x4f\x55\x33\x67\x4f\x9f\x79\xe1\xdc\x90"
        "\x1a\x0a\xdc\x71\xff\x7c\x30\xa5\xb4\x4f\x10\x84\x71\x0c\x0b\x3b\x86"
        "\xbd\x07\x02\x58\x12\xaf\x17\xde\xe2\x7c\x3c\xb3\x70\x7b\xda\xaf\x36"
        "\xd9\x5f\xfd\xd7\x9e\x6c\x74\x7f\x3e\xdc\x01\x6b\xbd\xfd\xab\x7f\xb4"
        "\xea\xff\xd5\x05\x7b\x1c\xee\x9c\x8d\xba\x35\x95\xf5\x2a\x9f\xa3\xed"
        "\x39\x1d\xaf\x23\xc4\xfb\x97\x06\xfd\xfc\x97\xd7\x8b\xd7\x23\x9a\x7d"
        "\xb6\xb3\xd7\x75\x84\x51\xb9\xbe\xd0\xab\x9d\x13\x6b\xdc\x8e\xd5\xea"
        "\xd5\xfe\xb8\x5d\x6c\x54\x5f\xcf\x71\x79\x1f\xbe\x11\xf2\x3b\x3f\x3f"
        "\xf1\x7f\x3a\x2a\xff\x63\xa0\xbb\x7f\x39\xff\x2f\x08\x63\x1b\x16\x86"
        "\xbd\x03\x02\xd6\xad\x78\xdf\xdc\x42\x56\xf2\xe3\x7d\x7d\x31\x7f\x53"
        "\x4d\xfe\xe6\x9a\xfc\x2d\x35\xf9\x5b\x6b\xf2\xb7\xd5\xe4\xc3\x38\xfb"
        "\xed\xcb\x3f\x49\xaf\x57\xcb\xbf\xf3\xe3\x6f\xfa\x41\xcf\x87\x95\xf3"
        "\x6c\xf7\xe4\xf8\xff\x06\x6c\x4f\x3c\x1f\x39\x68\xfd\xf1\xbe\xdf\x41"
        "\xdd\x6e\xfd\xf1\x7e\x62\x58\xcf\x7e\x7f\xe2\xd9\x53\x5f\x79\xfe\xb9"
        "\x2b\x4b\xf7\xff\x57\xed\xed\xff\x46\xde\xde\xf7\xe5\x74\x2b\x7f\xb6"
        "\x2e\xe7\x02\xe5\x7c\x61\x3c\xaf\xde\xbe\xf7\xbf\xb5\xb2\x9e\x46\x8f"
        "\x72\xf7\x86\xf6\xdc\xd3\xa5\xfc\xe2\xe3\x5d\x2b\xcb\x55\xbb\x96\x5f"
        "\x27\x75\xec\x67\x6e\x69\xc7\xf4\xca\xe7\xed\xe8\x55\x6e\xef\xca\x72"
        "\xad\x50\x6e\x4b\x0e\x9b\x43\x7b\xe3\xf1\xc9\xd6\xf0\xbc\x72\xfc\x51"
        "\xf6\xab\xe5\xfd\x9a\x0c\xeb\xdb\x0c\xeb\x31\x15\xda\x51\xf6\x2b\x3b"
        "\x73\x1c\xdb\x01\xab\x51\xb6\xc7\x5e\xf7\xff\x97\xed\x73\x3a\x35\xab"
        "\x17\x4e\x9f\x39\xf5\x78\x4e\x97\xed\xf4\x8f\x13\xcd\x4d\x37\x97\x1f"
        "\x58\xe3\x76\x03\xb7\xaf\xdf\xfe\x3f\xd3\x69\x65\xff\x9f\xed\xed\xe5"
        "\xcd\x46\xe7\x7e\x61\xc7\xf2\xf2\xaa\x73\xbf\xd0\x0a\xcb\xe7\x7a\x2c"
        "\x3f\x98\xd3\xe5\x7b\xee\x3b\x13\x5b\x16\x97\xcf\x9c\xfc\xde\x99\xe7"
        "\xef\xf4\xca\xc3\x98\x3b\xf7\xca\xab\xdf\x3d\x71\xe6\xcc\xa9\x1f\x78"
        "\xe0\x81\x07\x1e\xb4\x1f\x0c\x7b\xcf\x04\xdc\x6d\xb3\x2f\xbf\xf4\xfd"
        "\xd9\x73\xaf\xbc\xfa\xd8\xe9\x97\x4e\xbc\x78\xea\xc5\x53\x67\x0f\x1e"
        "\x3a\x74\x70\x6e\xee\xd0\x57\x0f\xce\xcf\x2e\x1e\xd7\xcf\x76\x1e\xdd"
        "\x03\x1b\xc9\xf2\x97\xfe\xb0\x5b\x02\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\xf4\xeb\x87\xc7\x8e\x5e\xf9\xf3\xbb\x5f\xfe\x60\xa9\xff\xff\x72"
        "\xff\xbf\xd2\xff\xbf\xdc\xf9\x5b\xfa\xff\xff\x38\xf4\xff\x8f\xfd\xe4"
        "\x4b\x3f\xf8\xd2\x0f\x70\x67\x97\xfc\xc5\x32\x61\x80\xd5\xa9\x50\xae"
        "\x99\xc3\xff\x87\xf6\xee\x0a\xf5\xec\x0e\xcf\xfb\x44\x8e\xdb\xf3\xf8"
        "\xe5\xfe\xff\xa5\xba\x38\xae\x6b\x69\xcf\x7d\x61\x79\x1c\xbf\xb7\x94"
        "\x0b\xc3\x09\xdc\x32\x5e\xca\x54\x18\x83\x24\xce\x17\xf8\xe9\x1c\x5f"
        "\xcc\xf1\x2f\x13\x0c\x51\xb5\xa5\xfb\xe2\x1c\xd7\x8d\x6f\x5d\xb6\xf5"
        "\x32\x3e\x85\x71\x29\x46\x53\xf9\xbf\x95\xad\xa1\x8c\x63\x52\xfa\x7f"
        "\xf7\x1a\xd7\xa9\xec\xff\x77\xae\x41\x1b\xb9\xf3\xd6\xa2\x3b\xe1\xb0"
        "\xd7\x11\xe8\xee\x1f\xc6\xff\x16\x84\xb1\x0d\x0b\x0b\x66\xf1\x00\xd6"
        "\x87\x61\xcf\xff\x59\xce\x7b\x96\xf8\xec\x1f\xbe\xb9\xf9\x66\x28\xc5"
        "\xae\x3d\xb9\x72\x7f\x19\xc7\x2f\x85\xdb\xb1\xde\xe7\x9f\x54\xff\xc6"
        "\x9a\xff\xb3\x3d\xff\x5d\xdf\xfb\xbf\x30\x63\x5e\x6b\x75\xf5\xfe\xfb"
        "\x67\x57\x3f\xe8\xa8\x36\xed\xe9\xb7\xfe\xb8\xfe\x65\x1c\xe8\x5d\x83"
        "\xd5\xff\x71\xae\xbf\xac\xcd\x23\xa9\xbf\xfa\x17\x7e\x11\xea\x8f\x17"
        "\x84\xfa\xf4\x9f\x50\xff\xd6\x3e\xeb\xbf\x65\xfd\xf7\xae\xae\xfe\xff"
        "\xe6\xfa\xcb\xdb\xf6\xe8\x43\xfd\xd6\xbf\xd4\xe2\xaa\xb1\xb2\x1d\xf1"
        "\xbc\x71\xb9\xfe\x17\xcf\x1b\x17\xd7\xc3\xfa\x97\xb1\x3d\x07\x5e\xff"
        "\x55\x4e\xd4\x78\x23\xd7\x0f\xe3\x6c\x54\xe6\x99\x1d\xd4\xa8\xcc\xff"
        "\xdb\x4b\xbc\x0f\xe3\x4b\x39\x5d\x76\x84\xe5\x3e\x87\x38\xdf\xc9\xa0"
        "\xed\x2f\xf7\x57\x94\xef\x81\xdd\xe1\xf5\xab\x9a\xef\x37\xf3\xff\x8e"
        "\xb6\xaf\xe5\xb8\xee\xf3\x50\xe6\xff\x2d\xdb\x63\xab\x4b\xba\xd1\x91"
        "\x6e\x76\x79\x6f\x37\xea\xbe\x06\x46\xd5\x87\xae\xff\x09\xc2\xd8\x86"
        "\x85\x85\x85\xbb\x7b\x42\xab\xc6\x50\x2b\x67\xe8\xef\xff\xb0\x7f\x27"
        "\x0c\xbb\xfe\x61\xbf\xff\x75\xe2\xfc\xbf\xf1\x18\x3e\xce\xff\x1b\xf3"
        "\xe3\xfc\xbf\x31\x3f\xce\xff\x1b\xf3\xe3\xfc\x7a\x31\x3f\xce\xff\x1b"
        "\xdf\xcf\x38\xff\x6f\xcc\xbf\x2f\xbc\x6e\x9c\x1f\x78\xba\x26\xff\x93"
        "\x35\xf9\x7b\x6a\xf2\xef\xaf\xc9\xdf\x5b\x93\xff\xa9\x9a\xfc\xfd\x35"
        "\xf9\x0f\xd4\xe4\x3f\x58\x93\x7f\x6f\x4d\xfe\x43\x35\xf9\x9f\xa9\xc9"
        "\xff\x6c\x4d\xfe\xc3\x35\xf9\x8f\xd6\xe4\x7f\xae\x26\x7f\xa3\x2b\xfd"
        "\x51\xc6\x75\xfd\x61\x9c\xc5\xfe\x79\x3e\xff\x30\x3e\xca\xf5\x9f\x5e"
        "\x9f\xff\x5d\x35\xf9\xc0\xe8\xfa\xe9\xdb\x07\x9e\x7a\xee\x37\xdf\x6e"
        "\x2d\xf5\xff\x9f\x6a\x9f\x0f\x29\xd7\xf1\x8e\xe4\x74\x33\xff\x76\xfe"
        "\x51\x4e\xc7\xeb\xde\xa9\x23\x7d\x33\xef\xdd\x9c\xfe\x6b\xc8\x5f\xef"
        "\xe7\x3b\x60\x9c\xc4\xf1\x33\xe2\xf7\xfb\x23\x35\xf9\xc0\xe8\x2a\xf7"
        "\x79\xf9\x7c\xc3\x18\xaa\xba\x8f\xd8\xd3\xef\xb8\x55\xbd\x8e\xf3\x19"
        "\x2d\x9f\xcf\xf1\x17\x72\xfc\xc5\x1c\x3f\x96\xe3\x99\x1c\xcf\xe6\xf8"
        "\x40\x8e\xe7\xd6\xa8\x7d\xdc\x1d\x4f\xfd\xfa\x77\x87\x5f\xaf\x96\x7f"
        "\xef\xef\x08\xf9\xfd\xde\x4f\x1e\xfb\x03\xc5\x71\xa2\x0e\xf6\xd9\x9e"
        "\x78\x7e\x60\xd0\xfb\xd9\xe3\x38\x7e\x83\xba\xdd\xfa\x57\xd9\x1d\x0c"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x60\x68\x1a\x8b\x7f\xe7\xe7\xa7\xab\x94"
        "\x2e\xbd\xf3\xe6\xd1\x67\x8f\x9f\x9e\xbd\xb9\xe4\x89\x76\x89\xd6\xe2"
        "\xdf\xc9\x8e\x54\xb3\xfd\xbc\x94\x1e\xcf\xf1\x44\x8e\x7f\x9e\x1f\x5c"
        "\xff\xe8\xb5\x93\x9d\xf1\x8d\x1c\x57\x69\x2e\x55\xa9\x6a\x2f\x4f\xcf"
        "\x5c\x6b\xd7\xb4\x2d\xa5\x74\x3e\xed\x4b\x97\x53\x2b\xed\xb9\x74\xe5"
        "\x8d\xf7\xe6\x9e\x3e\x7e\xe1\xd8\xc5\xfd\xef\xbf\x75\xf8\xea\xdd\x7b"
        "\x07\x00\x00\x00\x60\xe3\xfb\x5f\x00\x00\x00\xff\xff\x7c\x09\x0d\x9d",
        2567);
    syz_mount_image(0x200000c0, 0x200001c0, 0x808, 0x20000200, 1, 0xa07,
                    0x20001540);
    break;
  case 1:
    memcpy((void*)0x200000c0, "./bus\000", 6);
    res = syscall(__NR_open, 0x200000c0ul, 0x14da42ul, 0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    memcpy((void*)0x20000040, "/proc/self/exe\000", 15);
    res = syscall(__NR_openat, -1, 0x20000040ul, 0ul, 0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 3:
    syscall(__NR_sendfile, r[0], r[1], 0ul, 0x80001d00c0d0ul);
    break;
  case 4:
    syscall(__NR_open, 0ul, 0x11d140ul, 0ul);
    break;
  case 5:
    memcpy((void*)0x20000380, "/dev/loop", 9);
    *(uint8_t*)0x20000389 = 0x30;
    *(uint8_t*)0x2000038a = 0;
    memcpy((void*)0x200003c0, "./bus\000", 6);
    syscall(__NR_mount, 0x20000380ul, 0x200003c0ul, 0ul, 0x1000ul, 0ul);
    break;
  case 6:
    memcpy((void*)0x200000c0, "./bus\000", 6);
    res = syscall(__NR_open, 0x200000c0ul, 0x14da42ul, 0ul);
    if (res != -1)
      r[2] = res;
    break;
  case 7:
    memcpy((void*)0x20000040, "/proc/self/exe\000", 15);
    res = syscall(__NR_openat, -1, 0x20000040ul, 0ul, 0ul);
    if (res != -1)
      r[3] = res;
    break;
  case 8:
    syscall(__NR_sendfile, r[2], r[3], 0ul, 0x80001d00c0d0ul);
    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);
  use_temporary_dir();
  loop();
  return 0;
}