// https://syzkaller.appspot.com/bug?id=2fadd6c28069190d97183c9606710816bf750532
// 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
#ifndef __NR_pwritev2
#define __NR_pwritev2 328
#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, max_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 void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

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, 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) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    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) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      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)
    reset_loop_device(loopname);
  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;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 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, umount_flags) == 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, umount_flags))
        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, umount_flags))
          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)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 6; 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 (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

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

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20000040, "nilfs2\000", 7);
    memcpy((void*)0x20000200, "./file2\000", 8);
    memcpy(
        (void*)0x20003000,
        "\x78\x9c\xec\xdd\x4d\x6c\x1c\x57\x01\x00\xe0\x37\x6b\xaf\xf3\xd3\xb4"
        "\xd9\x14\x87\x9a\x34\xb4\x09\x81\xb6\xfc\xd4\x6e\x1c\x13\x7e\x22\x20"
        "\x55\x73\x21\x6a\x2a\x6e\x95\x2a\x2e\x51\x92\x96\x88\x24\x20\x52\x09"
        "\x52\xf5\x90\xe4\xc4\x8d\x56\x55\xb8\xf2\x2b\x0e\xbd\x94\x1f\x55\x22"
        "\x17\x14\xf5\xc4\xa5\x12\x8d\xc4\xa5\xa7\xc2\x81\x03\x51\x90\x2a\x71"
        "\x80\x86\xc4\x28\xeb\xf7\x76\xd7\xcf\xbb\x9e\xb5\x63\x7b\xbc\xde\xef"
        "\x93\x66\xdf\xbe\x79\x6f\xf7\xbd\xd9\x9d\x99\x9d\x9d\x99\xf7\x5e\x00"
        "\x86\x56\xad\xf9\x38\x33\x33\x51\x84\x70\xe5\xea\x1b\x47\xfe\xf9\xd8"
        "\x3f\xb6\x84\x70\x75\xbc\x9d\xa3\xd1\x7c\x1c\xed\x88\xd5\x43\x08\x45"
        "\x8c\x8f\x66\xef\xf7\xc1\xc8\x5c\x78\xfb\xc3\x57\x4f\x74\x0b\x8b\x30"
        "\xdd\x7c\x4c\xf1\xf0\xdc\xcd\xd6\x6b\xef\x0b\x21\x5c\x0c\x7b\xc2\xb5"
        "\xd0\x08\xbb\xae\x5c\x7f\xfd\xdd\xe9\x67\x8f\x5d\x3a\x7a\x79\xef\x7b"
        "\x6f\x1e\xba\xb1\x3a\x4b\x0f\x00\x00\xc3\xe5\x5b\xd7\x0e\xcd\xec\xfc"
        "\xdb\x5f\x1e\xde\xf1\xd1\x5b\x8f\x1c\x0e\x9b\x5a\xf3\xd3\xf1\x79\x23"
        "\xc6\xb7\xc5\xe3\xfe\xc3\xf1\xc0\x3f\x1d\xff\xd7\xc2\xfc\x78\xd1\x31"
        "\x75\x1a\xcb\xf2\x8d\xc6\xa9\x96\xe5\x1b\xe9\x92\xaf\xb3\x9c\x7a\x96"
        "\x6f\xb4\x47\xf9\x63\xd9\xfb\xd6\x7b\xe4\xdb\x54\x52\xfe\x48\xc7\xbc"
        "\x6e\xcb\x0d\x83\xec\x37\x31\x6c\x84\xa2\x36\xd9\xb1\x5e\x37\x42\xad"
        "\x36\x39\x39\xf7\x9f\x3c\x34\xff\xd7\x8f\x15\x93\xe7\x4e\x9f\x79\xf1"
        "\x7c\x45\x15\x05\x56\xdc\xbf\x1f\x0d\x21\xec\x31\x99\x86\x7e\xba\xd4"
        "\xdc\x20\xaa\xaf\xc7\x9a\x4e\xb3\xdb\xab\xde\x03\x01\xcc\xc9\xaf\x17"
        "\x2e\x70\x31\x3f\xb3\x70\x6f\x5a\xef\x36\xda\x5f\xf9\x37\x9f\xae\x75"
        "\x7f\x3d\xac\x80\xb5\x5e\xff\x95\x3f\x58\xe5\xff\xfa\x92\x3d\x0e\x2b"
        "\x67\xa3\xae\x4d\x69\xb9\xd2\x76\xb4\x2d\xc6\x3b\xae\x23\x9c\x0d\x5d"
        "\xee\x5f\xca\xb7\xbf\xd9\xfc\x8d\xb3\xed\x3f\xbd\x5f\x7e\x3d\xa2\xde"
        "\x67\x3d\x7b\x5d\x47\x18\x94\xeb\x0b\xbd\xea\x39\xb2\xc6\xf5\x58\xae"
        "\x5e\xf5\xcf\xd7\x8b\x8d\xea\x6b\x31\x4c\x9f\xc3\xd7\xb3\xf4\xce\xed"
        "\x27\xff\x4e\x07\xe5\x3b\x06\xba\xfb\x8f\xf3\xff\x26\xd3\xd0\x4e\x0b"
        "\x8e\x6f\x17\x91\xdf\x2b\x03\x6c\x6c\xf9\x7d\x73\xb3\x51\x4a\xcf\xef"
        "\xeb\xcb\xd3\x37\x95\xa4\x6f\x2e\x49\xdf\x52\x92\xbe\x75\x5e\xae\x85"
        "\xe9\xf7\x95\xbc\x1e\x86\xd9\x1f\x5e\xfe\x49\x78\xad\x68\xff\xcf\xcf"
        "\xff\xd3\x2f\xf5\x7c\x78\x3a\xcf\x76\x7f\x0c\x1f\x58\x62\x7d\xf2\xf3"
        "\x91\x4b\x2d\x7f\x6c\x91\xd8\x5a\x94\xbf\xb4\x63\x24\x67\x50\xa8\xd6"
        "\x1f\x8f\x3f\x7f\xea\xcb\x27\x5f\xb8\x3e\x77\xff\x7f\xd1\x5a\xff\xef"
        "\xc4\xf5\x7d\x4f\x8c\x37\xe2\xd6\x74\x2d\x66\x48\xe7\x0b\xf3\xf3\xea"
        "\xad\x7b\xff\x1b\xf3\xcb\xa9\xf5\xc8\xf7\x60\x56\x9f\xfb\xbb\xe4\x6f"
        "\x3e\x1f\x9f\x9f\xaf\x18\x6f\xbf\x4f\xe8\xd8\xcf\x2c\xa8\xc7\xc4\x5c"
        "\x3c\x1d\x21\x6c\xef\x95\x6f\xf7\xfc\xf7\x6f\x64\xf9\xb6\xc4\x69\x73"
        "\x56\xdf\xfc\xf8\x64\x6b\xf6\xba\x74\xfc\x91\xb6\xf4\xf4\x79\x8d\x66"
        "\xcb\x5b\xcf\x96\x63\x2c\xab\x47\xda\xaf\xec\x88\x61\x5e\x0f\x58\x8e"
        "\xb4\x3e\xf6\xba\xff\x3f\xad\x9f\x13\xa1\x5e\xbc\x78\xfa\xcc\xa9\xa7"
        "\x62\x3c\xad\xa7\x7f\x1e\xa9\x6f\xba\x3b\x7f\x7f\x79\x51\xbf\x5d\xe9"
        "\xba\x03\xf7\xa6\xbd\xbd\x2f\xde\xfe\x67\x22\xcc\x6f\xff\xb3\xad\x35"
        "\xbf\x5e\xeb\xdc\x2f\x6c\x6f\xcf\x2f\x3a\xf7\x0b\x8d\x6c\xfe\x74\x8f"
        "\xf9\x07\x62\x3c\xfd\xce\x7d\x67\x64\x4b\x73\xfe\xe4\x89\xef\x9d\x39"
        "\xb9\xd2\x0b\x0f\x43\xee\xfc\x85\x57\xbe\x7b\xfc\xcc\x99\x53\x3f\xf0"
        "\xc4\x13\x4f\x3c\x69\x3d\xa9\x7a\xcf\x04\xac\xb6\xa9\x97\xcf\x7e\x7f"
        "\xea\xfc\x85\x57\x9e\x3c\x7d\xf6\xf8\x4b\xa7\x5e\x3a\x75\xee\xc0\xc1"
        "\x83\x07\xa6\xa7\x0f\x7e\xe5\xc0\xcc\x54\xf3\xb8\x7e\xaa\xf3\xe8\x1e"
        "\xd8\x48\xda\x3f\xfa\x55\xd7\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\xe8\xd7\x0f\x8f\x1e\xb9\xfe\xd7\x77\xbe\xf4\xfe\x5c\xfb\xff\x76\xfb"
        "\xbf\xd4\xfe\x3f\xdd\xf9\x9b\xda\xff\xff\xb8\x98\x6b\xeb\x5e\xeb\x98"
        "\x1f\xba\x8c\x03\x98\xda\x01\xee\xe8\x92\xde\xcc\x93\x75\xb0\x3a\x96"
        "\xe5\xab\xc7\xe9\x63\x59\x7d\xc7\xb3\x72\x76\x66\xaf\xfb\x78\x0c\x5b"
        "\xe3\xf8\xc5\xf6\xff\xa9\xb8\xbc\x5f\xd7\x54\x9f\x87\xb2\xf9\x79\xff"
        "\xbd\x29\xdf\x44\x36\x3f\xef\xc1\x63\x2c\xeb\x75\x24\x1f\x2f\xf0\x53"
        "\x31\xbc\x1c\xc3\x5f\x06\xa8\x50\x11\x7b\xb0\xc8\x3a\xc6\xca\xd7\xdb"
        "\x5e\xfd\x5b\xa7\x75\x3d\xf5\x4f\xb1\x84\x7e\x29\xb6\x2c\xbb\xce\xac"
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        "\x77\xac\x41\x1d\x59\x79\x6b\xd1\x9c\xb0\xea\x65\x04\xba\xfb\xd7\xca"
        "\xf7\xff\xdd\x3e\x04\x58\x07\xfd\x1b\x2f\x36\x8d\xad\x72\x1d\x7f\xf5"
        "\x40\xf5\xcb\xb8\xb9\x77\xda\xa6\xaa\xeb\xb6\x16\xd3\xbe\xb1\xc1\x58"
        "\x17\xab\x9a\x66\x67\xf5\x41\x09\xac\x0f\x55\x8f\xff\x99\xce\x7b\xa6"
        "\xf0\xdc\x9f\xbe\xb9\xf9\xee\x94\xb2\xdd\x7c\x7a\xfe\xfe\x32\xef\xbf"
        "\x14\xee\xc5\x7a\x1f\x7f\x52\xf9\x1b\x6b\xfc\xcf\xd6\xf8\x77\x7d\xed"
        "\xff\x6e\x2d\x1c\x3d\xa1\xb1\xbc\x72\xff\xfb\xb3\x1b\xef\x77\x14\x1b"
        "\x76\xf5\xbb\xff\xcd\x97\x3f\xf5\x03\x3d\x9e\x97\xb0\xf8\x99\xe8\x8f"
        "\xee\x96\x7f\xab\xbd\x28\x8f\x87\xfe\xca\x9f\xfd\x45\x56\x7e\x7e\x41"
        "\xa8\x4f\xb7\xe2\xf2\xa7\xcf\x7f\x6b\x9f\xe5\x2f\x58\xfe\xdd\x65\x25"
        "\x5d\x78\xbb\xdb\xdc\xff\xc5\xf2\xd3\xc7\xf6\xc4\xbe\x7e\xcb\x9f\xab"
        "\x71\x51\x9b\x5f\x8f\xfc\xbc\x71\xba\xfe\x97\x9f\x37\x4e\x6e\x67\xcb"
        "\x7f\x72\xb9\xcb\xbf\xcc\x81\x1a\xef\xc4\xf2\x61\x98\x0d\xca\x38\xb3"
        "\x4b\xd5\xc7\xf8\xbf\x4d\x65\xe3\xff\x2e\xb0\xc2\xe3\xff\xf6\x92\xdf"
        "\x87\xf1\xc5\x18\x4f\x3b\xc2\x74\x9f\x43\x3e\xc2\xc9\x12\xeb\xdf\x8a"
        "\xa4\xdf\x81\x9d\xd9\xfb\x17\x25\xbf\x6f\xc6\xff\x1d\x6c\x5f\x8d\x61"
        "\xd9\xf6\x90\xc6\xff\x4d\xeb\x63\xa3\x4b\xbc\xd6\x11\xaf\x77\xf9\x6c"
        "\x37\xea\xbe\x06\x06\xd5\x07\xeb\x77\xfc\xdf\xf6\x0f\x55\xf5\x75\x59"
        "\x0f\xd3\xe1\x75\x50\x87\xf2\xef\xab\xfa\x7a\x98\x96\x30\xcd\xce\xce"
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        "\xdd\x98\x6b\xff\x3f\xd6\x3a\x1f\x92\xae\xe3\x1d\x8e\xf1\x7a\xfc\xef"
        "\xfc\xa3\x18\xcf\xaf\x7b\x87\x8e\xf8\xdd\xb4\x77\x62\xfc\xef\x59\xfa"
        "\x7a\x3f\xdf\x01\xc3\x24\xef\x3f\x23\xff\x7d\x7f\xbc\x24\x1d\x18\x5c"
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        "\xcf\x60\xf9\x5c\x0c\x3f\x1f\xc3\x2f\xc4\xf0\xc9\x18\x4e\xc6\x70\x2a"
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        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x50\x99\x5a\xf3\x71\x66\x66\xa2"
        "\x08\xe1\xca\xd5\x37\x8e\x3c\x7f\xec\xf4\xd4\xdd\x39\xdf\x68\xe5\x68"
        "\x34\x1f\x47\x3b\x62\xf5\xd6\xeb\x42\x78\x2a\x86\x23\x31\xfc\x79\x7c"
        "\x72\xfb\xc3\x57\x4f\x74\x86\x77\x62\x58\x84\xe9\x50\x84\xa2\x35\x3f"
        "\x3c\x77\xb3\x55\xd2\x7d\x21\x84\x8b\x61\x4f\xb8\x16\x1a\x61\xd7\x95"
        "\xeb\xaf\xbf\x3b\xfd\xec\xb1\x4b\x47\x2f\xef\x7d\xef\xcd\x43\x37\x56"
        "\xef\x13\x00\x00\x00\x80\x8d\xef\xff\x01\x00\x00\xff\xff\x34\x36\x25"
        "\x6a",
        2687);
    syz_mount_image(/*fs=*/0x20000040, /*dir=*/0x20000200,
                    /*flags=MS_SYNCHRONOUS*/ 0x10, /*opts=*/0x20000180,
                    /*chdir=*/5, /*size=*/0xa7f, /*img=*/0x20003000);
    break;
  case 1:
    syscall(__NR_write, /*fd=*/-1, /*arg=*/0ul, /*len=*/0ul);
    break;
  case 2:
    memcpy((void*)0x20000040, "./file2\000", 8);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul,
                  /*flags=O_SYNC|O_NOATIME|O_CREAT|FASYNC|O_WRONLY*/ 0x143041,
                  /*mode=*/0);
    if (res != -1)
      r[0] = res;
    break;
  case 3:
    *(uint32_t*)0x20002480 = 8;
    memcpy(
        (void*)0x20002484,
        "\x75\xe7\x0a\x31\x3d\x5a\x15\xd8\x66\x44\xab\x26\x67\x43\x13\x20\x06"
        "\x7b\xda\x86\xbb\xd0\x2b\xdd\x2e\x07\xda\x1b\xcc\xde\xfd\x4d\x3f\x3f"
        "\x9b\x89\xab\x0c\xee\x34\xa8\xbe\x06\x9e\x01\xa9\x3f\x77\x90\x81\x5f"
        "\xe6\x05\x84\xad\x6f\x73\x00\x0b\xee\xbf\x79\xcf\x03\x6f\x47\xad\x8c"
        "\x62\xfa\xe1\x12\x23\x30\x23\xbb\xf5\x4d\x59\x33\xef\x3d\x40\x59\x64"
        "\x93\xf4\x43\x4c\xa5\xf9\xa9\x80\x66\x18\xf8\x1f\x61\x86\x01\xf3\xc4"
        "\x9f\x0f\x0a\xf2\x0d\xa3\x75\x57\x54\x9f\xb8\x66\x23\x4c\x0d\x96\x06"
        "\xc9\x92\x13\x95\x3c\xbb\xe6\x4f\x60\x27\xcd\x8b\xc7\x14\x8b\x9b\x61"
        "\xc8\xa3\x98\x87\xc5\xb5\xc3\x13\x93\x74\xa1\x51\x64\x66\x36\x29\xc9"
        "\xae\x30\xdf\xba\xa7\x50\xed\xc6\xf4\x53\xc1\xe0\x04\x31\x6a\x34\x91"
        "\x1a\x71\xc2\x91\x07\x14\xb1\x7f\xb6\x1b\x76\x43\xa2\x91\xf0\xf0\x1a"
        "\xb5\xcc\xd2\x04\xa1\xa1\x33\x1b\xbd\x2f\xba\xa9\x6c\xfa\x18\xe7\x82"
        "\x8a\xe4\xb3\x70\x09\x0e\x64\xba\x2f\x83\xe7\x1f\x68\x39\x5a\xc4\xcd"
        "\xc4\xeb\xb7\x38\x2c\x2d\xf0\xa1\x7c\x11\x8a\x29\xfe\x63\x9d\x60\x5a"
        "\x33\x30\xef\x6e\x05\xd7\x7d\x02\xa8\xf0\xcb\x2d\x13\x5d\x39\xed\x30"
        "\x69\x93\xed\x99\x8d\x8c\x4e\x31\x5c\x10\x15\xa9\x89\x05\xfc\xf6\xf8"
        "\x45\x21\x97\x33\xdc\xfa\xd7\xaa\x95\x6f\xb3\x77\x30\xfc\x23\x0c\xcc"
        "\x69\x5a\x18\x26\xf0\x80\x46\x0e\x6a\x70\x71\x45\x75\x24\x84\x6f\x9a"
        "\x63\x0a\x5c\x0e\x7a\x8f\x3d\x5a\x94\x5d\x09\x76\xd6\x29\xbf\xa2\x0c"
        "\xee\xab\xe6\xbe\xbb\x27\x88\xaa\xf8\xb8\x2a\xca\x5d\x0e\x73\x6b\x8f"
        "\x4b\x0b\x83\x7e\x9d\xe4\x56\xcb\x47\xbb\x76\x2c\x06\xa6\x51\x8a\x09"
        "\xb6\x6b\x1d\xcf\xae\xcf\x5b\x82\x05\x6d\x59\xec\xaa\x04\x10\x25\xdd"
        "\x84\xbd\xe9\x83\xe9\x2b\x8c\xe7\x7d\x60\xf6\xe8\xac\x67\xd4\x7c\x33"
        "\x60\x51\xf8\xa4\x54\x6b\x1e\x20\x1b\x1b\xd4\xaf\xfe\xac\x29\x64\xbd"
        "\xc6\x7e\x41\x81\x96\xbd\xfb\x73\xbe\x0e\x9b\x28\x35\x06\xce\xeb\x1d"
        "\x06\x99\xff\xa7\x00\x9c\xf0\x38\x1d\x13\xab\xc2\x8a\xc6\xb7\x5c\xda"
        "\x7c\x7a\xaf\x2f\x78\xa4\x0b\xca\x5e\x65\x81\x7f\xd9\xa1\x1a\x03\xda"
        "\x99\x84\xa2\xa9\x11\x94\x05\x7b\x4b\xf0\xbc\xd9\xe5\x43\x0f\xfa\x50"
        "\x87\x04\xea\xa7\x97\x2e\xf4\xc1\x82\x15\xf0\xe9\x0a\x63\xf0\xd3\x77"
        "\xdc\x51\x16\x34\x1c\x68\x2b\xd1\x79\xc5\x96\xc6\x73\x9e\x6a\x57\x46"
        "\x88\xfb\xb6\x24\x7c\xa0\x4a\x0f\xd8\xff\x3a\xea\x9e\x4b\xf1\x71\x54"
        "\xcc\x1f\xb7\x8b\x7b\xea\x43\x21\x48\x2e\xab\x87\x37\x5f\x45\x09\x6d"
        "\xb1\x05\x45\xda\x20\x10\x62\xcc\xcb\x0b\x7b\xec\x1e\x15\x97\x50\x0c"
        "\x08\x78\x14\x1d\x67\xa7\x54\xce\xae\x74\x8d\x24\x77\x77\x51\xb9\x6c"
        "\xce\x44\x85\xa7\x8c\xb4\xb5\xaa\xf4\xee\x24\xd5\x56\xa6\x46\xd7\xd9"
        "\xdb\x92\xb6\xd9\x5b\x08\xc2\xbe\x00\xc4\x55\x7d\x40\x45\x18\xa4\xa9"
        "\xea\x61\xe4\xea\xc2\x48\x0a\xbe\x0f\x5a\xdc\x7c\xa8\xe0\x2d\x0c\x5b"
        "\x35\x93\x9a\x25\xa9\xca\x9c\x39\x7f\x53\xac\x98\x88\x34\xb0\x1d\x13"
        "\x12\x2d\x7b\xef\x22\xea\xd5\xcb\x5f\x0e\xe2\x55\xce\xb1\xec\x81\xec"
        "\xa7\x61\x5d\xe7\x64\xce\x3a\x21\x8f\x62\xc8\x60\x11\xf9\x8e\x3c\x87"
        "\xee\xe9\x3a\x36\xcf\xf0\xf1\xea\xb1\xff\x67\xff\xbb\x29\x49\x1b\x91"
        "\x16\xb0\x1a\x65\xbf\xf9\xbc\x51\xbe\x1f\x06\x70\x62\x9a\xd1\xaa\x6a"
        "\x7e\xf1\xd2\x04\xcf\x30\x0a\x2e\x16\x6b\xfb\x87\x49\x6b\xb5\xaf\x3f"
        "\x96\x7f\xd3\x03\xd0\xde\x1f\xcd\x90\xd6\x8b\x1d\xa1\x88\xdc\x96\xbf"
        "\x06\x4a\x18\x7e\x1b\x38\x80\x58\x28\xb9\x3e\xb9\x97\x3a\x42\xab\x7a"
        "\xc8\xca\x18\x0a\x88\xdd\x48\x30\x03\xe3\xfa\x28\xe0\xe5\x61\xfc\x5e"
        "\x5b\x39\x7a\x6c\x40\xf3\xe4\xec\xa1\xc9\xf0\x54\x9f\x6a\x1d\xf5\x12"
        "\xf6\xff\x3a\x74\xba\x36\x94\xaf\x1b\x61\x16\x2d\x12\x1c\x12\xb6\x13"
        "\x7b\x16\xbf\x75\x5d\x07\x2f\xca\x05\x26\xcf\x49\xb1\x0a\xcd\xcf\x7c"
        "\x3a\xf8\x1a\x90\x2e\xf2\xd0\x52\x31\x4c\xd4\xe7\x58\xa7\x66\xbf\xbf"
        "\x43\x4b\x46\x2d\x98\x58\xe2\xc9\x07\x2e\xdc\x54\x3f\xe9\x94\xdf\x64"
        "\x66\x2a\xc3\x13\xea\x70\xb1\x4b\xc3\xfc\xbb\x4e\xc2\x61\xdc\x4c\x81"
        "\xa3\xc2\x0c\x79\x59\x76\xbf\x3b\xba\x33\x67\xa9\xe6\x02\xf8\x53\xfd"
        "\xdb\x7c\xa2\x04\x95\x1b\x10\x11\x5d\x04\xc2\x47\xfc\x93\x91\xbf\x98"
        "\xa3\x50\x87\x10\x4d\x2b\x61\xab\xf5\x1f\xb0\xee\x44\x7a\x98\xaa\x3c"
        "\x13\x30\x0b\x56\xa0\x8e\x99\x98\x30\x03\xce\x58\xac\x1d\x7c\x0d\xd9"
        "\x6c\x44\xb5\x81\xf2\x45\x1d\xf7\x91\x03\x8a\x71\xb5\x27\x47\x19\xca"
        "\x60\x71\x32\x1f\xd2\x18\xe5\x66\x56\xcf\x45\xe4\xf4\x1f\x83\x54\x94"
        "\x95\x0a\xd9\x4f\x64\xc5\x19\xb6\x96\xeb\xe8\x2f\xe8\x9b\x64\x59\x04"
        "\xab\xb4\xa0\xee\x1e\xa5\x8d\x1d\x7a\xb9\x3b\x49\xe3\x20\xca\x5d\x2d"
        "\x7d\x01\xbe\xd7\x8c\xb7\x61\xb5\x5f\xf7\xa5\x5b\xc0\x31\x3a\xe9\xac"
        "\x17\xb8\x02\x36\x1e\x33\x9f\xd2\xf7\xbb\x40\xd4\xa4\x5a\x94\x90\x74"
        "\x02\x66\x04\xd8\xd2\xc1\x72\xbd\x8e\xbb\xcc\xcb\xee\x23\x0d\xc7\x06"
        "\xa6\xfc\x7b\x85\x65\x76\x10\x79\xf3\x2b\x5c\x67\xb5\x17\x06\xba\x4d"
        "\x42\x6f\xd8\x42\x8a\x4d\xf0\x39\x2d\xf6\xf9\x47\x25\x03\x20\x02\xec"
        "\xe4\x66\xca\x93\x55\xc5\xb8\x44\xf1\x9c\xa3\x1b\x70\x53\x5d\x8b\x3c"
        "\x60\x8e\x5b\x1f\x2d\xd2\x42\x80\x14\xf8\x9f\x30\x20\x5e\xa1\x1f\x5b"
        "\x4f\xa9\x4c\x0c\x42\x95\xf8\xe9\xab\x09\x06\x28\x00\xc7\xa6\xb7\x6c"
        "\x91\x05\x8e\xd7\x85\xd5\x63\xde\x50\x51\x83\x73\xb1\x5e\x16\x16\xba"
        "\xa4\x30\x4a\x50\x78\x22\x40\x87\x88\xae\xbe\x2e\x15\x40\x18\x39\x4b"
        "\x4d\x58\xfb\x7b\xfe\x71\x01\xb8\x51\x3c\xf6\x8a\xca\xd6\x30\x71\x06"
        "\x45\xd5\xee\x0c\x1a\xf6\x0b\xd9\xdd\x49\xa7\x77\x42\x0e\x01\x67\xd0"
        "\x22\x76\x02\xc4\xdc\xce\xc2\xc5\xd8\xbe\x0f\xe5\xa7\x48\xc1\x6c\xc2"
        "\x94\xfd\xab\xb1\x72\x7f\xb1\x6e\x9b\x06\xed\x59\xf7\x21\x9b\x73\x76"
        "\x7f\x6a\xd6\x38\x5d\x46\x1b\xe8\x68\x82\x6c\xd4\xd7\x49\xf8\x4c\xbd"
        "\xd2\xe5\xd6\x30\x51\xe6\x06\x9f\x17\x08\xf6\xc2\x37\xcd\x5a\x01\x2d"
        "\x1e\x6f\xec\x70\xd6\xf4\xb6\x1c\xdf\xa9\x13\x36\x72\x70\x4b\x9f\xa9"
        "\xa5\xd3\x0a\xc1\x55\x24\xa3\x01\x6d\xc8\x65\xaa\x52\x96\x2c\x99\x5f"
        "\xa5\x0d\x95\x1b\x44\xcd\x49\xbb\x29\x43\x6b\x0c\x61\x6e\xf7\x10\x97"
        "\xe5\xc5\xc9\x0c\x5c\xf0\x94\xb2\x02\xcf\xc2\x1b\x6d\x00\x2f\x85\xd6"
        "\x86\xc2\xc8\x01\xfb\xc8\x07\x88\x74\x70\xa2\x74\x0f\xef\x1b\x2b\x8a"
        "\xca\x2c\x96\xce\x76\x50\xed\x98\x29\x52\x98\x02\x77\xaa\xcd\xca\xcb"
        "\x2f\x44\x7b\xfc\xe8\x1d\x27\xe2\xeb\x32\xee\xb1\x26\x20\x99\x16\xda"
        "\x91\xe3\x59\x68\x6e\x58\xc3\x0a\x05\xbd\xbf\x19\xa4\x17\x87\x1b\x15"
        "\x73\xc0\xd0\x94\xfd\x55\x1e\x15\xe9\x1d\x21\x00\xad\xaa\x78\xa6\x44"
        "\xac\x74\x82\x7c\x9d\x4d\x0a\x98\x2e\xef\x6e\x7d\x72\x60\x86\x45\xd1"
        "\xa3\x2f\x21\x02\xaa\xda\xc5\x41\xa2\xe6\x1b\x5b\xf0\xf5\x9a\x43\x5b"
        "\x77\xf6\x21\xb1\x08\xd5\x45\xce\x3b\xba\x95\x28\x1b\x04\x1a\x7b\xc1"
        "\x46\xe1\xb2\xbc\xf7\x43\x78\xa8\xc7\xd1\x11\x0c\xc1\x23\xeb\xc6\x01"
        "\xde\xa4\x0f\x08\xb6\x35\xc6\xad\x01\x2c\xc5\x86\xfc\x47\xa9\xab\xc1"
        "\xa1\xe1\x15\xcc\x57\x0e\x35\x5f\x62\x00\x2d\xa9\xe8\x07\x55\x4e\xed"
        "\x4c\x6c\x7d\x07\x33\x1f\x3e\xb3\xbc\x94\x15\xcf\x2e\x7b\x83\xdc\xf4"
        "\x73\x3b\x66\x7d\x73\x61\x66\x6b\x44\x26\xc2\xdd\x97\xe3\xa2\x6b\x72"
        "\xc1\x8b\x3a\x60\x91\x9b\x09\x98\x21\xf0\x1c\xfa\x3f\x5d\x6f\x7c\xfd"
        "\x25\xbf\xc3\x2b\x06\x2c\xfd\x31\x56\x8d\x9c\x70\xb7\x16\x0e\xe5\x2e"
        "\x3d\x73\xe2\x43\xc6\x97\x39\x77\xd2\xcd\x2d\xf0\x99\x6f\xbf\x07\x11"
        "\x8d\xe7\x78\x28\xf8\xa1\x24\xc7\xba\xae\x5a\x4f\x8b\xc8\xf2\x51\x49"
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        "\x7f\x6f\xc1\xd4\x5a\xd8\xe9\xf2\x80\x4b\x1e\xb1\xb4\x33\xa4\x4a\x1f"
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        "\xc1\x0e\xef\x35\x7c\x7c\x47\xac\x1d\xf2\xde\x82\x3b\x83\xea\x17\xfd"
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        "\x3d\x21\x6e\x4a\x33\xb1\x22\x90\xa1\xdd\x22\x5c\x67\x42\x8b\x5d\x2f"
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        "\x31\x28\xfe\xaa\x56\x51\xaf\xd5\x4b\x22\xe1\xce\xd7\xab\xcc\x9d\x90"
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        "\x35\xf7\xee\x84\xc1\xb5\x0b\x37\xc1\xe1\x96\xf0\xc8\xa0\x4c\x05\x86"
        "\xd9\x3a\xb9\xcd\xc6\x33\x56\xf1\xea\x1a\xda\x99\xd7\xfd\x00\x78\x36"
        "\x3d\x9f\x81\xbe\x92\xd1\x4d\x29\xbb\xe3\x3e\xde\xe7\xbf\x23\xe9\xba"
        "\x8c\xaa\x98\xc3\x35\x95\xac\x6b\x53\x78\x8c\x72\x6d\xde\x6f\xc4\xe0"
        "\xab\x53\x33\xc7\x42\xcc\x95\xd0\xdc\xf7\x71\x99\x57\x8f\x79\x0d\x2b"
        "\x65\x4b\xb5\x0f\x05\xc1\x81\x86\xc2\xd2\x6d\x9a\x34\x2a\x45\x32\x84"
        "\x08\x45\xfa\x1e\x8d\x0c\x69\x4d\xbc\x45\x17\x6a\x5d\xae\xd3\xf9\x00"
        "\xf7\xf2\x2b\x14\x4d\x57\x9e\x34\x88\xa3\x24\xc1\xfc\x43\xe9\x03\xa2"
        "\x13\x37\x65\xb5\x01\x97\xaa\x19\xe5\x43\x9d\x02\x9f\x17\xdd\xfb\x2c"
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        "\x23\x90\x39\x80\xa4\x4d\x5e\x66\x4d\xd9\x14\xd1\x6b\xab\x6b\x53\x9d"
        "\x88\x49\xed\x85\x0d\x97\x2d\x68\x83\xc0\x0d\x8e\x73\x00\xd3\x18\xa5"
        "\xe5\x0b\x6a\xc7\x15\x5e\x3f\x34\x78\x20\xf2\xcc\x43\xc3\xf4\x6a\x44"
        "\xbc\x86\xef\xdc\x6a\x8e\x06\xda\x56\x2d\x1f\xb1\x1e\xc7\xdf\x11\x88"
        "\x1a\x58\x89\xfc\x5c\x39\x42\x69\xb2\x4c\x8a\x6d\xa5\xdb\x4c\x3a\xe9"
        "\x30\xfc\xc3\x50\x79\xc9\xde\x5b\x68\x88\x67\xe7\x35\x7b\x7f\x23\x05"
        "\x09\xe0\xfe\xd9\xff\x66\x3c\x9c\x92\x37\xa5\x54\x01\xeb\xd5\x72\x75"
        "\x04\xfc\x81\x2e\xb5\x6d\x1a\x88\xed\x7d\x4e\xf0\x1b\x59\x36\xb0\x27"
        "\xab\xae\x7f\x4a\x29\xf0\xe3\x2f\xce\x98\x5c\xc3\x7c\xec\xc9\xac\xb0"
        "\x47\xb2\x91\x96\xc1\x6b\xb1\x5e\xe5\x54\xab\x1f\x0f\x70\xdd\x02\x37"
        "\xa7\x73\x73\x0a\x2e\xab\xb9\x7e\x25\xdd\x11\xec\x12\xa0\xbe\x48\x6e"
        "\x76\xe1\x1e\x00\x22\x30\x2e\x9f\xda\x94\xc3\x8a\x0b\x25\xf6\xe7\x8b"
        "\xb2\xc4\x9b\x18\x21\x8f\xf3\x81\x34\xe7\xb3\xf5\xc6\xa2\x8f\xd6\xbe"
        "\x3f\xff\x81\xf2\x13\xb7\x06\x54\x26\x28\x8c\x22\x41\x6b\x05\xbd\x5d"
        "\x7b\xfc\x2a\xe6\x00\x1f\x49\x5e\x4c\x8a\x8d\xbc\x26\x27\x93\xa7\x25"
        "\x85\xf1\x5f\x66\xa4\x90\xf5\x70\xc3\x33\xd2\xc4\xf1\xbf\xe4\xe1\xce"
        "\xee\x26\x0c\xc5\xcb\xab\x53\x9c\x93\xb2\x39\x4e\x93\x79\x9b\xa0\xcf"
        "\x1a\xd0\xf5\x0a\x78\xec\x19\x68\xec\x6d\xd7\x0b\x16\x71\x68\x04\x5a"
        "\x2f\x91\x18\x0b\x32\x79\xc5\xf4\xeb\xde\x32\xaf\x0a\x64\x31\x3e\x9d"
        "\xf5\xdf\x16\x90\xba\x8d\xea\x6e\x1d\xe1\x8b\x4f\x95\xfb\xd7\x3d\x08"
        "\x5c\xb0\x17\xd1\x34\xab\xde\xa9\x93\xdf\x1e\x75\x6e\x1a\xd2\xca\x66"
        "\x05\x28\x58\x53\x1e\x59\x73\x19\xe2\x54\x85\x2e\x20\x73\x6d\xdc\x50"
        "\x69\x28\xd3\xda\xe8\xf1\x96\xee\x80\x8c\x08\xfe\xd9\x58\x7f\x5b\x1f"
        "\x8c\xd3\xde\x89\x85\xaf\xd3\x64\x70\x76\xbb\x87\x22\x43\x58\xe1\x07"
        "\x79\x5b\x83\xcb\x6c\x0b\xbe\xbb\xda\x9b\x36\xec\xfb\x00\x2a\x91\x42"
        "\x7f\x14\x39\x8d\xdd\xe4\xd1\xf6\x70\x61\x6f\x31\x54\x07\x5e\x62\xc3"
        "\xec\xb2\xaa\x35\xec\xc5\x9b\x82\x1e\x71\xe2\x98\xc5\x4d\x5a\x8b\x0f"
        "\xa1\xcc\xd3\x09\x1b\xfc\xc9\x06\x9c\xda\x0c\xf9\xc8\xaa\xa6\xb4\x79"
        "\x5d\xff\xee\x56\xfb\x5f\x6e\xda\x40\x57\xd0\x6e\x81\x70\x3b\x53\x0c"
        "\x53\xec\x6b\xd4\x6a\xa0\x2a\x73\x33\x96\xed\x6d\xce\x94\x9f\xcc\x00"
        "\x2a\x10\xcc\x07\xdd\x72\xb9\xa1\xee\xc6\x97\xb9\x21\x72\xdd\xa2\xad"
        "\xe6\x07\x77\x21\x38\x12\x2b\x2a\x9a\x09\x66\x56\xcd\x36\xba\x03\x6f"
        "\xda\x57\x74\xc8\x0b\xe2\x16\xb1\x4b\x67\xab\x3a\x45\x85\xa5\xaf",
        4096);
    *(uint16_t*)0x20003484 = 0x1000;
    syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20002480ul, /*len=*/0x1006ul);
    break;
  case 4:
    memcpy((void*)0x200002c0, "./file1\000", 8);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200002c0ul,
                  /*flags=O_CREAT|O_RDWR*/ 0x42, /*mode=*/0);
    if (res != -1)
      r[1] = res;
    break;
  case 5:
    *(uint64_t*)0x200000c0 = 0x20000200;
    memset((void*)0x20000200, 223, 1);
    *(uint64_t*)0x200000c8 = 0xf4240;
    syscall(__NR_pwritev2, /*fd=*/r[1], /*vec=*/0x200000c0ul, /*vlen=*/1ul,
            /*off_low=*/0x800001, /*off_high=*/0, /*flags=*/0ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}