// https://syzkaller.appspot.com/bug?id=d2abf370930f1cbd63e0e4dc9fbc90e94e673533
// 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) {
    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) {
    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 < 4; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      if (call == 1)
        break;
      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[1] = {0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20001500, "exfat\000", 6);
    memcpy((void*)0x20001540, "./file0\000", 8);
    memcpy(
        (void*)0x20004ac0,
        "\x78\x9c\xec\xdc\x79\x74\x56\x45\xb6\x28\xf0\xda\x55\x75\x20\xc4\x88"
        "\x9f\x11\x19\x02\xb5\x6b\x1f\xf8\xc4\x00\x45\x44\x44\x04\x11\x11\x19"
        "\x44\x44\x44\x44\x44\x64\x12\x01\x01\x23\x22\x22\x02\x22\x04\x64\x12"
        "\x31\x20\x22\xf3\x10\x11\x19\x02\x02\x22\x43\x84\x88\x61\x9e\x07\x99"
        "\x27\x23\x8d\x88\x88\x88\x4c\x32\x43\xbd\x85\xdd\xf7\xd2\x7d\xed\xbb"
        "\x78\xef\x75\xbf\xc7\xba\x2b\xfb\xb7\x56\xad\x53\x3b\x27\x7b\x9f\xaa"
        "\xec\xac\x7c\xe7\x9c\x3f\xf2\x4b\x97\xa1\x35\x1a\xd5\xac\xda\x80\x88"
        "\xc4\xbf\x04\xfe\x7a\x48\x11\x42\xc4\x08\x21\x06\x0a\x21\x6e\x13\x42"
        "\x04\x42\x88\x72\xf1\xe5\xe2\xaf\x9d\xcf\xa3\x20\xe5\x5f\xbb\x08\xfb"
        "\xf7\x7a\x36\xfd\x66\xaf\x80\xdd\x4c\xdc\xff\x9c\x8d\xfb\x9f\xb3\x71"
        "\xff\x73\x36\xee\x7f\xce\xc6\xfd\xcf\xd9\xb8\xff\x39\x1b\xf7\x3f\x67"
        "\xe3\xfe\x33\x96\x93\x6d\x99\x51\xe8\x76\x1e\x39\x77\xf0\xfb\xff\x9c"
        "\x8c\x3f\xff\x73\x36\xee\x7f\xce\x13\xfc\xdd\x9c\xfb\x9f\xb3\x71\xff"
        "\x73\x36\xee\x7f\xce\xc6\xfd\xcf\xd9\xb8\xff\x39\x1b\xf7\x3f\x67\xe3"
        "\xfe\x33\x96\x93\xdd\xec\xf7\xcf\x3c\x6e\xee\xb8\xd9\xbf\x7f\x8c\x31"
        "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
        "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
        "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6"
        "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
        "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31"
        "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
        "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
        "\x31\xc6\x18\x63\x8c\x31\xc6\x72\x86\xf3\xfe\x3a\x2d\x84\xb8\x76\x0c"
        "\x6e\xf6\xa2\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xf6\x6f\xe5\x73\xdf"
        "\xec\x15\x30\xc6\x18\x63\x8c\x31\xc6\x18\x63\xec\xff\x3d\x10\x52\x28"
        "\xa1\x45\x20\x72\x89\xdc\x22\x46\xe4\x11\xb1\xe2\x16\x11\x27\x6e\x15"
        "\x79\xc5\x6d\x22\x22\x6e\x17\xf1\xe2\x0e\x91\x4f\xdc\x29\xf2\x8b\x02"
        "\xa2\xa0\x28\x24\x12\x44\x61\x51\x44\x18\x81\xc2\x0a\x12\xa1\x28\x2a"
        "\x8a\x89\xa8\xb8\x4b\x14\x17\x77\x8b\x44\x51\x42\x94\x14\xa5\x84\x13"
        "\xa5\x45\x92\xb8\x47\x94\x11\xf7\x8a\xb2\xe2\x3e\x51\x4e\xdc\x2f\xca"
        "\x8b\x07\x44\x05\x51\x51\x3c\x28\x2a\x89\x87\x44\x65\xf1\xb0\xa8\x22"
        "\x1e\x11\x55\xc5\xa3\xa2\x9a\xa8\x2e\x6a\x88\x9a\xe2\x31\x51\x4b\x3c"
        "\x2e\x6a\x8b\x27\x44\x1d\xf1\xa4\xa8\x2b\x9e\x12\xf5\xc4\xd3\xa2\xbe"
        "\x78\x46\x34\x10\xcf\x8a\x86\xe2\x39\xd1\x48\x3c\x2f\x1a\x8b\x17\x44"
        "\x13\xd1\x54\x34\x13\xcd\x45\x8b\xff\xab\xfc\xb7\x45\x0f\xf1\x8e\xe8"
        "\x29\x7a\x89\x14\xd1\x5b\xf4\x11\xef\x8a\xbe\xa2\x9f\xe8\x2f\x06\x88"
        "\x81\xe2\x3d\x31\x48\xbc\x2f\x06\x8b\x0f\x44\xaa\x18\x22\x86\x8a\x0f"
        "\xc5\x30\xf1\x91\x18\x2e\x3e\x16\x23\xc4\x48\x31\x4a\x8c\x16\x63\xc4"
        "\x58\x31\x4e\x8c\x17\x13\xc4\x44\x91\x26\x3e\x11\x93\xc4\xa7\x62\xb2"
        "\xf8\x4c\x4c\x11\x53\xc5\x34\x31\x5d\xa4\x8b\x19\x62\xa6\xf8\x5c\xcc"
        "\x12\xb3\xc5\x1c\xf1\x85\x98\x2b\xbe\x14\xf3\xc4\x7c\xb1\x40\x2c\x14"
        "\x19\xe2\x2b\xb1\x48\x2c\x16\x99\xe2\x6b\xb1\x44\x7c\x23\xb2\xc4\x52"
        "\xb1\x4c\x2c\x17\x2b\xc4\x4a\xb1\x4a\xac\x16\x6b\xc4\x5a\xb1\x4e\xac"
        "\x17\x1b\xc4\x46\xb1\x49\x6c\x16\x5b\xc4\xb7\x62\xab\xd8\x26\xb6\x8b"
        "\x1d\x62\xa7\xd8\x25\x76\x8b\x3d\x62\xaf\xd8\x27\xf6\x8b\xef\x44\xb6"
        "\xf8\xfe\xff\x30\xff\xdc\x7f\xc9\xef\x0a\x02\x04\x48\x90\xa0\x41\x43"
        "\x2e\xc8\x05\x31\x10\x03\xb1\x10\x0b\x71\x10\x07\x79\x21\x2f\x44\x20"
        "\x02\xf1\x10\x0f\xf9\x20\x1f\xe4\x87\xfc\x50\x10\x0a\x42\x02\x24\x40"
        "\x11\x28\x02\x08\x08\x04\x04\x45\xa1\x28\x44\x21\x0a\xc5\xa1\x38\x24"
        "\x42\x22\x94\x84\x92\xe0\xc0\x41\x12\x24\x41\x19\xb8\x17\xca\x42\x59"
        "\x28\x07\xe5\xa0\x3c\x94\x87\x0a\x50\x11\x2a\x42\x25\xa8\x04\x95\xa1"
        "\x32\x54\x81\x2a\x50\x15\xaa\x42\x35\xa8\x06\x35\xa0\x06\x3c\x06\x8f"
        "\xc1\xe3\x50\x1b\x6a\x43\x1d\xa8\x03\x75\xa1\x2e\xd4\x83\x7a\x50\x1f"
        "\xea\x43\x03\x68\x00\x0d\xa1\x21\x34\x82\x46\xd0\x18\x1a\x43\x13\x68"
        "\x02\xcd\xa0\x19\xb4\x80\x16\xd0\x12\x5a\x42\x2b\x68\x05\x6d\xa0\x0d"
        "\xb4\x85\xb6\xd0\x1e\xda\x43\x32\x24\x43\x07\xe8\x00\xed\xa0\x23\x74"
        "\x82\x4e\xd0\x19\x3a\x43\x17\xe8\x02\x5d\xa1\x1b\x74\x83\xb7\xe1\x6d"
        "\x78\x07\xde\x81\x5e\x50\x4d\xf6\x86\x3e\xd0\x07\xfa\x42\x5f\xe8\x0f"
        "\x03\x60\x00\xbc\x07\x83\xe0\x7d\x78\x1f\x3e\x80\x54\x18\x02\x43\xe1"
        "\x43\xf8\x10\x3e\x82\xe1\x70\x16\x46\xc0\x48\x18\x05\xa3\xa0\xb2\x1c"
        "\x0b\xe3\x60\x3c\x90\x9c\x08\x69\x90\x06\x93\x60\x12\x4c\x86\xc9\x30"
        "\x05\xa6\xc2\x54\x98\x0e\xe9\x30\x03\x66\xc2\x4c\x98\x05\xb3\x61\x36"
        "\x7c\x01\x73\xe1\x4b\xf8\x12\xe6\xc3\x7c\x58\x08\x19\x90\x01\x8b\x60"
        "\x31\x64\x42\x26\x2c\x81\x73\x90\x05\x4b\x61\x19\x2c\x87\x15\xb0\x12"
        "\x56\xc0\x6a\x58\x03\xab\x61\x1d\xac\x87\x75\xb0\x11\x36\xc2\x66\xd8"
        "\x0c\xdf\xc2\xb7\x30\x1a\xb6\xc1\x0e\xd8\x01\xbb\x60\x17\xec\x81\x3d"
        "\xb0\x0f\xf6\x41\x2a\x64\x43\x36\x1c\x80\x03\x70\x10\x0e\xc2\x21\x38"
        "\x04\x87\xe1\x30\x1c\x81\x23\x70\x14\x8e\xc2\x31\x38\x06\xc7\xe1\x38"
        "\x9c\x80\x93\x70\x0a\x4e\xc2\x19\x38\x03\x67\xe1\x1c\x9c\x87\xf3\x70"
        "\x11\x2e\xc2\x65\x78\x33\xe1\xa7\x86\xbb\x4a\xac\x4d\x15\xf2\x1a\x2d"
        "\xb5\xcc\x25\x73\xc9\x18\x19\x23\x63\x65\xac\x8c\x93\x71\x32\xaf\xcc"
        "\x2b\x23\x32\x22\xe3\x65\xbc\xcc\x27\xf3\xc9\xfc\x32\xbf\x2c\x28\x0b"
        "\xca\x04\x99\x20\x8b\xc8\x22\x12\x25\x4a\x92\xa1\x2c\x2a\x8b\xca\xa8"
        "\x8c\xca\xe2\xb2\xb8\x4c\x94\x89\xb2\xa4\x2c\x29\x9d\x74\x32\x49\x26"
        "\xc9\x32\xb2\x8c\x2c\x2b\xcb\xca\x72\xf2\x7e\x59\x5e\x3e\x20\x2b\xc8"
        "\x8a\xb2\xb5\xab\x24\x2b\xc9\xca\xb2\x8d\xab\x22\x1f\x91\x55\x65\x55"
        "\x59\x4d\x56\x97\x35\x64\x4d\x59\x53\xd6\x92\xb5\x64\x6d\x59\x5b\xd6"
        "\x91\x75\x64\x5d\x59\x57\xd6\x93\x4f\xcb\xfa\xb2\x37\xf4\x87\x67\xe5"
        "\xb5\xce\x34\x92\x43\xa0\xb1\x1c\x0a\x4d\x64\x53\xd9\x4c\x36\x97\x1f"
        "\xc1\x8b\xb2\xa5\x1c\x0e\xad\x64\x6b\xd9\x46\xbe\x2c\x47\xc2\x08\x68"
        "\x2f\x5b\xba\x64\xf9\xaa\xec\x20\xc7\x41\x47\xf9\xba\x1c\x0f\x6f\xc8"
        "\xce\x72\x22\x74\x91\x6f\xc9\xae\xb2\x9b\xec\x2e\xdf\x96\x3d\x64\x2b"
        "\xd7\x53\xf6\x92\x53\xa0\xb7\xec\x23\xa7\x43\x5f\xd9\x4f\xf6\x97\x03"
        "\xe4\x2c\xa8\x2e\xaf\x75\xac\x86\xfc\x40\xa6\xca\x21\x72\xa8\xfc\x50"
        "\x2e\x84\x8f\xe4\x70\xf9\xb1\x1c\x21\x47\xca\x51\x72\xb4\x1c\x23\xc7"
        "\xca\x71\x72\xbc\x9c\x20\x27\xca\x34\xf9\x89\x9c\x24\x3f\x95\x93\xe5"
        "\x67\x72\x8a\x9c\x2a\xa7\xc9\xe9\x32\x5d\xce\x90\x33\xe5\xe7\x72\x96"
        "\x9c\x2d\xe7\xc8\x2f\xe4\x5c\xf9\xa5\x9c\x27\xe7\xcb\x05\x72\xa1\xcc"
        "\x90\x5f\xc9\x45\x72\xb1\xcc\x94\x5f\xcb\x25\xf2\x1b\x99\x25\x97\xca"
        "\x65\x72\xb9\x5c\x21\x57\xca\x55\x72\xb5\x5c\x23\xd7\xca\x75\x72\xbd"
        "\xdc\x20\x37\xca\x4d\x72\xb3\xdc\x22\xbf\x95\x5b\xe5\x36\xb9\x5d\xee"
        "\x90\x3b\xe5\x2e\xb9\x5b\xee\x91\x7b\xe5\x3e\xb9\x5f\x7e\x27\xb3\xe5"
        "\xf7\xf2\x80\xfc\x8b\x3c\x28\x7f\x90\x87\xe4\x8f\xf2\xb0\xfc\x49\x1e"
        "\x91\x3f\xcb\xa3\xf2\x17\x79\x4c\xfe\x2a\x8f\xcb\xdf\xe4\x09\x79\x52"
        "\x9e\x92\xa7\xe5\x19\xf9\xbb\x3c\x2b\xcf\xc9\xf3\xf2\x82\xbc\x28\x2f"
        "\xc9\xcb\xf2\x8a\xbc\x2a\xbd\x14\x0a\x94\x54\x4a\x69\x15\xa8\x5c\x2a"
        "\xb7\x8a\x51\x79\x54\xac\xba\x45\xc5\xa9\x5b\x55\x5e\x75\x9b\x8a\xa8"
        "\xdb\x55\xbc\xba\x43\xe5\x53\x77\xaa\xfc\xaa\x80\x2a\xa8\x0a\xa9\x04"
        "\x55\x58\x15\x51\x46\xa1\xb2\x8a\x54\xa8\x8a\xaa\x62\x2a\xaa\xee\x52"
        "\xc5\xd5\xdd\x2a\x51\x95\x50\x25\x55\x29\xe5\x54\x69\x95\xa4\xee\x51"
        "\x65\xd4\xbd\xaa\xac\xba\x4f\x95\x53\xf7\xab\xf2\xea\x01\x55\x41\x55"
        "\x54\x0f\xaa\x4a\xea\x21\x55\x59\x3d\xac\xaa\xa8\x47\x54\x55\xf5\xa8"
        "\xaa\xa6\xaa\xab\x1a\xaa\xa6\x7a\x4c\xd5\x52\x8f\xab\xda\xea\x09\x55"
        "\x47\x3d\xa9\xea\xaa\xa7\x54\x3d\xf5\xb4\xaa\xaf\x9e\x51\x0d\xd4\xb3"
        "\xaa\xa1\x7a\x4e\x35\x52\xcf\xab\xc6\xea\x05\xd5\x44\x35\x55\xcd\x54"
        "\x73\xd5\x42\xbd\xa8\x5a\xaa\x97\x54\x2b\xd5\x5a\xb5\x51\x2f\xab\xb6"
        "\xaa\x9d\x6a\xaf\x5e\x51\xc9\xea\x55\xd5\x41\xbd\xa6\x3a\xaa\xd7\x55"
        "\x27\xf5\x86\xea\xac\xde\x54\x5d\xd4\x5b\xaa\xab\xea\xa6\xba\xab\x2b"
        "\xea\xaa\xf2\xaa\xa7\xea\xa5\x52\x54\x6f\xd5\x47\xbd\xab\xfa\xaa\x7e"
        "\xaa\xbf\x1a\xa0\x06\xaa\xf7\xd4\x20\xf5\xbe\x1a\xac\x3e\x50\xa9\x6a"
        "\x88\x1a\xaa\x3e\x54\xc3\xd4\x47\x6a\xb8\xfa\x58\x8d\x50\x23\xd5\x28"
        "\x35\x5a\x8d\x51\x63\xd5\x38\x35\x5e\x4d\x50\x13\x55\x9a\xfa\x44\x4d"
        "\x52\x9f\xaa\xc9\xea\x33\x35\x45\x4d\x55\xd3\xd4\x74\x95\xae\x66\xa8"
        "\xfe\x7f\xab\x34\xe7\x7f\x23\xff\xd3\x7f\x92\x3f\xf8\x8f\xab\x6f\x56"
        "\x5b\xd4\xb7\x6a\xab\xda\xa6\xb6\xab\x1d\x6a\xa7\xda\xa5\x76\xab\xdd"
        "\x6a\xaf\xda\xab\xf6\xab\xfd\x2a\x5b\x65\xab\x03\xea\x80\x3a\xa8\x0e"
        "\xaa\x43\xea\x90\x3a\xac\x0e\xab\x23\xea\x88\x3a\xaa\x8e\xaa\x63\xea"
        "\x98\x3a\xae\x8e\xab\x13\xea\xa4\xba\xa0\x4e\xab\x33\xea\x77\x75\x56"
        "\x9d\x53\xe7\xd4\x05\x75\x51\x5d\x54\x97\xff\xf6\x33\x10\x1a\xb4\xd4"
        "\x4a\x6b\x1d\xe8\x5c\x3a\xb7\x8e\xd1\x79\x74\xac\xbe\x45\xc7\xe9\x5b"
        "\x75\x5e\x7d\x9b\x8e\xe8\xdb\x75\xbc\xbe\x43\xe7\xd3\x77\xea\xfc\xba"
        "\x80\x2e\xa8\x0b\xe9\x04\x5d\x58\x17\xd1\x46\xa3\xb6\x9a\x74\xa8\x8b"
        "\xea\x62\x3a\xaa\xef\xd2\xc5\xf5\xdd\x3a\x51\x97\xd0\x25\x75\x29\xed"
        "\x74\x69\x9d\xa4\xef\xf9\x97\xf3\x6f\xb4\xbe\x16\xba\x85\x6e\xa9\x5b"
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        "\xb1\x17\xed\x25\xdb\xd3\xf6\xb2\x03\xed\x7b\x76\x90\x7d\xdf\x0e\xb6"
        "\x1f\xd8\x54\x3b\xe4\x4f\xf1\x28\x3b\xda\x8e\xb1\x63\xed\x38\x3b\xde"
        "\x4e\xb0\x13\xff\x14\x4f\xb3\xd3\x6d\xba\x9d\x61\x67\xda\xcf\xed\x2c"
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        "\x9e\xb0\x27\xed\x29\x7b\xda\x9e\xb1\xbf\xdb\xb3\xf6\xdc\x1f\xfb\xbf"
        "\xb6\xf7\xd3\xf6\x8a\xbd\x6a\xbd\x15\x04\x24\x49\x91\xa6\x80\x72\x51"
        "\x6e\x8a\xa1\x3c\x14\x4b\xb7\x50\x1c\xdd\x4a\x79\xe9\x36\x8a\xd0\xed"
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        "\x91\x4a\x50\x49\x2a\x45\x8e\x4a\x53\x12\xdd\x43\x65\xe8\x5e\x2a\x4b"
        "\xf7\x51\x39\xba\x9f\xca\xd3\x03\x54\x81\x2a\x5e\xf2\x54\x89\x1e\xa2"
        "\xca\xf4\x30\x55\xa1\x47\xa8\x2a\x3d\x4a\xd5\xa8\x3a\xd5\xa0\x9a\xf4"
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        "\x40\x4d\xa8\x29\x35\xa3\xe6\xd4\x82\x5e\xa4\x96\xf4\x12\xb5\xa2\xd6"
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        "\x3a\xd2\xeb\xd4\x89\xde\xa0\xce\xf4\x26\x75\xa1\xb7\xa8\x2b\x75\xa3"
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        "\x69\x16\xcd\xa6\x39\xf4\x05\xcd\xa5\x2f\x69\x1e\xcd\xa7\x05\xb4\x90"
        "\x32\xe8\x2b\x5a\x44\x8b\x29\x93\xbe\xa6\x25\xf4\x0d\x65\xd1\x52\x5a"
        "\x46\xcb\x69\x05\xad\xa4\x55\xb4\x9a\xd6\xd0\x5a\x5a\x47\xeb\x69\x03"
        "\x6d\xa4\x4d\xb4\x99\xb6\xd0\xb7\xb4\x95\xb6\xd1\x76\xda\x41\x3b\x69"
        "\x17\xed\xa6\x3d\xb4\x97\xf6\xd1\x7e\xfa\x8e\xb2\xe9\x7b\x3a\x40\x7f"
        "\xa1\x83\xf4\x03\x1d\xa2\x1f\xe9\x30\xfd\x44\x47\xe8\x67\x3a\x4a\xbf"
        "\xd0\x31\xfa\x95\x8e\xd3\x6f\x74\x82\x4e\xd2\x29\x3a\x4d\x67\xe8\x77"
        "\x3a\x4b\xe7\xe8\x3c\x5d\xa0\x8b\x74\x89\x2e\xd3\x15\xba\x4a\x9e\x44"
        "\x08\xa1\x0c\x55\xa8\xc3\x20\xcc\x15\xe6\x0e\x63\xc2\x3c\x61\x6c\x78"
        "\x4b\x18\x17\xde\x1a\xe6\x0d\x6f\x0b\x23\xe1\xed\x61\x7c\x78\x47\x98"
        "\x2f\xbc\x33\xcc\x1f\x16\x08\x0b\x86\x85\xc2\x84\xb0\x70\x58\x24\x34"
        "\x21\x86\x36\xa4\x30\x0c\x8b\x86\xc5\xc2\x68\x78\x57\x58\x3c\xbc\x3b"
        "\x4c\x0c\x4b\x84\x25\xc3\x52\xa1\x0b\x4b\x87\x49\xe1\x3d\x61\x99\xf0"
        "\xde\xb0\x6c\x78\x5f\x58\x2e\xbc\x3f\x2c\x1f\x3e\x10\x56\x08\x2b\x86"
        "\xcf\x3f\x59\x29\x7c\x28\xac\x1c\x3e\x1c\x56\x09\x1f\x09\xab\x86\x8f"
        "\x86\xd5\xc2\xea\x61\x8d\xb0\x66\xf8\x58\x58\x2b\x7c\x3c\xac\x1d\x3e"
        "\x11\xd6\x09\x9f\x0c\xcb\x86\x4f\x85\xf5\xc2\xa7\xc3\xfa\xe1\x33\x61"
        "\x83\xf0\xd9\xb0\x61\xf8\x5c\xd8\x28\x7c\x3e\x6c\x1c\xbe\x10\x36\x09"
        "\x9b\x86\xcd\xc2\xe6\x61\x8b\xf0\xc5\xb0\x65\xf8\x52\xd8\x2a\x6c\x1d"
        "\xb6\x09\x5f\x0e\xdb\x86\xed\xc2\xf6\xe1\x2b\x61\x72\xf8\x6a\xd8\x21"
        "\x7c\xed\x86\xe7\x53\xc2\xde\x61\x9f\xf0\xdd\xf0\xdd\xd0\xfb\x27\xd4"
        "\x82\xe8\xc2\x68\x46\xf4\xab\xe8\xa2\xe8\xe2\x68\x66\xf4\xeb\xe8\x92"
        "\xe8\x37\xd1\xac\xe8\xd2\xe8\xb2\xe8\xf2\xe8\x8a\xe8\xca\xe8\xaa\xe8"
        "\xea\xe8\x9a\xe8\xda\xe8\xba\xe8\xfa\xe8\x86\xe8\xc6\xe8\xa6\xe8\xe6"
        "\xa8\xf7\x35\x73\x0b\x07\x4e\x3a\xe5\xb4\x0b\x5c\x2e\x97\xdb\xc5\xb8"
        "\x3c\x2e\xd6\xdd\xe2\xe2\xdc\xad\x2e\xaf\xbb\xcd\x45\xdc\xed\x2e\xde"
        "\xdd\xe1\xf2\xb9\x3b\x5d\x7e\x57\xc0\x15\x74\x85\x5c\x82\x2b\xec\x8a"
        "\x38\xe3\xd0\x59\x47\x2e\x74\x45\x5d\x31\x17\x75\x77\xb9\xe2\xee\x6e"
        "\x97\xe8\x4a\xb8\x92\xae\x94\x73\xae\xb4\x4b\x72\xcd\x5d\x0b\xd7\xc2"
        "\xb5\x74\x2f\xb9\x56\xae\xb5\x6b\xe3\x5e\x76\x2f\xbb\x76\xae\x9d\x7b"
        "\xc5\xbd\xe2\x5e\x75\x1d\xdc\x6b\xae\xa3\x7b\xdd\x75\x72\x6f\xb8\xce"
        "\xee\x4d\xf7\xa6\x7b\xcb\x75\x75\xdd\x5c\x77\xf7\xb6\xeb\xe1\xde\x71"
        "\x3d\x5d\x2f\x97\xe2\x52\x5c\x1f\xd7\xc7\xf5\x75\x7d\x5d\x7f\xd7\xdf"
        "\x0d\x74\x03\xdd\x20\x37\xc8\x0d\x76\x83\x5d\xaa\x4b\x75\x43\xdd\x50"
        "\x37\xcc\x0d\x73\xc3\xdd\x70\x37\xc2\x8d\x70\xa3\xdc\x28\x37\xc6\x8d"
        "\x71\xe3\xdc\x38\x37\xc1\x4d\x70\x69\x2e\xcd\x4d\x72\x93\xdc\x64\x37"
        "\xd9\x4d\x71\x53\xdc\x34\x37\xcd\xa5\xbb\x74\x37\xd3\xcd\x74\xb3\xdc"
        "\x2c\x37\xc7\xcd\x71\x73\x13\xe7\xba\x79\x6e\x9e\x5b\xe0\x16\xb8\x0c"
        "\x97\xe1\x16\xb9\x45\x2e\xd3\x65\xba\x25\x6e\x89\xcb\x72\x59\x6e\x99"
        "\x5b\xe6\x56\xb8\x15\x6e\x95\x5b\xe5\xd6\xb8\x35\x6e\x9d\x5b\xe7\x36"
        "\xb8\x0d\x6e\x93\xdb\xe4\xb6\xb8\x2d\x6e\xab\xdb\xea\xb6\xbb\xed\x6e"
        "\xa7\xdb\xe9\x76\xbb\xdd\x6e\xaf\xdb\xeb\xf6\xbb\xfd\x2e\xdb\x65\xbb"
        "\x03\xee\x80\x3b\xe8\x0e\xba\x43\xee\x47\x77\xd8\xfd\xe4\x8e\xb8\x9f"
        "\xdd\x51\xf7\x8b\x3b\xe6\x7e\x75\xc7\xdd\x6f\xee\x84\x3b\xe9\x4e\xb9"
        "\xd3\xee\x8c\xfb\xdd\x9d\x75\xe7\xdc\x79\x77\xc1\x5d\x74\x97\xdc\x65"
        "\x77\xc5\x5d\x75\xde\xa5\x45\x3e\x89\x4c\x8a\x7c\x1a\x99\x1c\xf9\x2c"
        "\x32\x25\x32\x35\x32\x2d\x32\x3d\x92\x1e\x99\x11\x99\x19\xf9\x3c\x32"
        "\x2b\x32\x3b\x32\x27\xf2\x45\x64\x6e\xe4\xcb\xc8\xbc\xc8\xfc\xc8\x82"
        "\xc8\xc2\x48\x46\xe4\xab\xc8\xa2\xc8\xe2\x48\x66\xe4\xeb\xc8\x92\xc8"
        "\x37\x91\xac\xc8\xd2\xc8\xb2\xc8\xf2\xc8\x8a\xc8\xca\x88\xf7\x85\xb7"
        "\x86\xbe\xa8\x2f\xe6\xa3\xfe\x2e\x5f\xdc\xdf\xed\x13\x7d\x09\x5f\xd2"
        "\x97\xf2\xce\x97\xf6\x49\xfe\x1e\x5f\xc6\xdf\xeb\xcb\xfa\xfb\x7c\x39"
        "\x7f\xbf\x2f\xef\x1f\xf0\x15\x7c\x45\xff\xa0\x7f\xc1\x37\xf1\x4d\x7d"
        "\x33\xdf\xdc\xb7\xf0\x2f\xfa\x96\xfe\x25\xdf\xca\xb7\xf6\x6d\xfc\xcb"
        "\xbe\xad\x6f\xe7\xdb\xfb\x57\x7c\xb2\x7f\xd5\x77\xf0\xaf\xf9\x8e\xfe"
        "\x75\xdf\xc9\xbf\xe1\x3b\xfb\x37\x7d\x17\xff\x96\xef\xea\xbb\xf9\xee"
        "\xfe\x6d\xdf\xc3\xbf\xe3\x7b\xfa\x5e\x3e\xc5\xf7\xf6\x7d\xfc\xbb\xbe"
        "\xaf\xef\xe7\xfb\xfb\x01\x7e\xa0\x7f\xcf\x0f\xf2\xef\xfb\xc1\xfe\x03"
        "\x9f\xea\x87\xf8\xa1\xfe\x43\x3f\xcc\x7f\xe4\x87\xfb\x8f\xfd\x08\x3f"
        "\xd2\x8f\xf2\xa3\xfd\x18\x3f\xd6\x8f\xf3\xe3\xfd\x04\x3f\xd1\xa7\xf9"
        "\x4f\xfc\x24\xff\xa9\x9f\xec\x3f\xf3\x53\xfc\x54\x3f\xcd\x4f\xf7\xe9"
        "\x7e\x86\x9f\xe9\x3f\xf7\xb3\xfc\x6c\x3f\xc7\x7f\xe1\xe7\xfa\x2f\xfd"
        "\x3c\x3f\xdf\x2f\xf0\x0b\x7d\x86\xff\xca\x2f\xf2\x8b\x7d\xa6\xff\xda"
        "\x2f\xf1\xdf\xf8\x2c\xbf\xd4\x2f\xf3\xcb\xfd\x0a\xbf\xd2\xaf\xf2\xab"
        "\xfd\x1a\xbf\xd6\xaf\xf3\xeb\xfd\x06\xbf\xd1\x6f\xf2\x9b\xfd\x16\xff"
        "\xad\xdf\xea\xb7\xf9\xed\x7e\x87\xdf\xe9\x77\xf9\xdd\x7e\x8f\xdf\xeb"
        "\xf7\xf9\xfd\xfe\x3b\x9f\xed\xbf\xf7\x07\xfc\x5f\xfc\x41\xff\x83\x3f"
        "\xe4\x7f\xf4\x87\xfd\x4f\xfe\x88\xff\xd9\x1f\xf5\xbf\xf8\x63\xfe\x57"
        "\x7f\xdc\xff\xe6\x4f\xf8\x93\xfe\x94\x3f\xed\xcf\xf8\xdf\xfd\x59\x7f"
        "\xce\x9f\xf7\x17\xfc\x45\x7f\xc9\x5f\xf6\x57\xfc\x55\xef\xfd\xcd\x7e"
        "\x93\xce\x18\x63\x8c\x31\xf6\x3f\x41\xca\x0d\xce\xf7\xfe\x27\x5f\x93"
        "\x7f\x1b\xd7\xf4\x11\x42\xdc\xba\xad\xd0\xe1\xbf\x3f\xaf\x84\x10\x1b"
        "\xf2\xff\x75\xde\x4f\xfd\xf5\xf8\x6a\xaf\x2e\xcf\xfe\xc7\xa8\x56\x2d"
        "\x25\xe5\x3f\xae\x9b\xa5\x44\x50\x6c\xbe\x10\x22\x72\x3d\x3f\x97\xb8"
        "\x1e\x2f\x15\x6d\x44\x3b\x91\x2c\x5a\x8b\x32\xff\x74\x7d\xfd\x64\xb7"
        "\x8b\x74\x83\xfa\xd1\xfb\x85\x88\xfd\xbb\x9c\x18\x71\x3d\xbe\x5e\xff"
        "\xde\xff\xa6\xfe\xd8\xb9\x37\xac\x3f\x5f\x88\xc4\x62\xd7\x73\xf2\x88"
        "\xeb\xf1\xf5\xfa\x65\xff\x9b\xfa\x05\x5a\xde\xa0\x7e\x9e\x1f\xd2\x84"
        "\x68\xf5\x77\x39\x71\xe2\x7a\x7c\xbd\x7e\x92\x78\x49\xbc\x26\x92\xff"
        "\xe1\x3b\x19\x63\x8c\x31\xc6\x18\x63\x8c\xb1\xbf\xea\x27\x1f\xec\x74"
        "\xa3\xe7\xdb\x6b\xcf\xe7\x09\xfa\x7a\x4e\x6e\x71\x3d\xbe\xd1\xf3\x39"
        "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x6e\xbe\x37\xba\x75\x7f\xe5\xc5"
        "\xe4\xe4\xd6\x9d\x78\xc2\x13\x9e\xf0\xe4\x3f\x27\x37\xfb\x2f\x13\x63"
        "\x8c\x31\xc6\x18\x63\xec\xdf\xed\xfa\x4d\xff\xcd\x5e\x09\x63\x8c\x31"
        "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
        "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
        "\x31\x96\x73\xfd\xff\xf8\x77\x62\x37\x7b\x8f\x8c\x31\xc6\x18\x63\x8c"
        "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6"
        "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
        "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\xd8\xcd\xf6\xbf\x02\x00\x00\xff\xff"
        "\x2e\x19\x33\x84",
        5342);
    syz_mount_image(/*fs=*/0x20001500, /*dir=*/0x20001540, /*flags=*/0x20010080,
                    /*opts=*/0x20000140, /*chdir=*/1, /*size=*/0x14de,
                    /*img=*/0x20004ac0);
    break;
  case 1:
    memcpy((void*)0x20000000, "./file0\000", 8);
    syscall(__NR_mkdir, /*path=*/0x20000000ul, /*mode=*/0ul);
    break;
  case 2:
    memcpy((void*)0x20000500, ".\000", 2);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000500ul,
                  /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 3:
    syscall(__NR_getdents64, /*fd=*/r[0], /*ent=*/0x20000080ul,
            /*count=*/0x98ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  use_temporary_dir();
  loop();
  return 0;
}