// https://syzkaller.appspot.com/bug?id=b3d4ed3e41b3085ce97f4504f4183e3f99115fb2
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.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/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#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 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;
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")) {
  }
}

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);
  }
}

void execute_one(void)
{
  memcpy((void*)0x20000080, "ext4\000", 5);
  memcpy((void*)0x20000500, "./file1\000", 8);
  memcpy((void*)0x20000180, "errors=remount-ro", 17);
  *(uint8_t*)0x20000191 = 0x2c;
  memcpy((void*)0x20000192, "sysvgroups", 10);
  *(uint8_t*)0x2000019c = 0x2c;
  memcpy((void*)0x2000019d, "dioread_lock", 12);
  *(uint8_t*)0x200001a9 = 0x2c;
  memcpy((void*)0x200001aa, "init_itable", 11);
  *(uint8_t*)0x200001b5 = 0x2c;
  memcpy((void*)0x200001b6, "noauto_da_alloc", 15);
  *(uint8_t*)0x200001c5 = 0x2c;
  memcpy((void*)0x200001c6, "resgid", 6);
  *(uint8_t*)0x200001cc = 0x3d;
  sprintf((char*)0x200001cd, "0x%016llx", (long long)0);
  *(uint8_t*)0x200001df = 0x2c;
  memcpy((void*)0x200001e0, "barrier", 7);
  *(uint8_t*)0x200001e7 = 0x2c;
  memcpy((void*)0x200001e8, "init_itable", 11);
  *(uint8_t*)0x200001f3 = 0x3d;
  sprintf((char*)0x200001f4, "0x%016llx", (long long)0x100);
  *(uint8_t*)0x20000206 = 0x2c;
  memcpy((void*)0x20000207, "usrquota", 8);
  *(uint8_t*)0x2000020f = 0x2c;
  *(uint8_t*)0x20000210 = 0;
  memcpy(
      (void*)0x20000a00,
      "\x78\x9c\xec\xdd\xcf\x6b\x1b\xd9\x1d\x00\xf0\xef\x8c\xad\x34\x3f\x9c\x5a"
      "\x69\x7b\x48\x03\x4d\x43\x93\xe2\x84\x36\x92\x1d\x37\x89\xe9\x21\x4d\xa1"
      "\x34\xa7\x40\xdb\xf4\x9e\xba\xb6\x6c\x8c\x65\xcb\x58\x72\x12\x9b\x50\x1c"
      "\xfa\x07\x14\x4a\x69\x0b\x3d\xf5\xd4\x4b\xa1\x7f\x40\xa1\xe4\x4f\x28\x0b"
      "\x81\xdd\xfb\xb2\xbb\xec\xb2\xec\x26\xbb\x87\x3d\xec\xae\x16\x49\xa3\xfc"
      "\xf0\x4a\xb1\x43\x64\x0f\xd8\x9f\x0f\x3c\xcf\x7b\x33\x92\xbe\xdf\x67\xa3"
      "\xd1\xbc\x99\x67\x4d\x00\x07\xd6\x99\x88\xb8\x1e\x11\x43\x11\x71\x21\x22"
      "\x46\xb3\xf5\x69\x56\x6e\xb4\x1a\x9b\x9d\xc7\x3d\x79\x7c\x7f\xa6\x55\x92"
      "\x68\x36\x6f\x7d\x94\x44\x92\xad\xeb\xbe\x56\x92\x2d\x8f\x75\x9e\x12\x87"
      "\x23\xe2\x37\x37\x22\x7e\x9f\x7c\x3d\x6e\x7d\x7d\x63\x71\xba\x5a\xad\xac"
      "\x66\xed\x72\x63\x69\xa5\x5c\x5f\xdf\xb8\xb8\xb0\x34\x3d\x5f\x99\xaf\x2c"
      "\x4f\x4e\x4e\x5c\x99\xba\x3a\x75\x79\x6a\x7c\x20\xfd\x2c\x46\xc4\xb5\x5f"
      "\xbc\xf7\xd7\x3f\xfd\xeb\x97\xd7\xfe\xf7\xe3\xbb\x6f\xdf\xfe\xe0\xfc\x1f"
      "\x5a\x69\x8d\x64\xdb\x9f\xef\xc7\x20\x75\xba\x5e\x68\xff\x2e\xba\x86\x23"
      "\x62\x75\x37\x82\xe5\x60\x28\x5b\x16\x72\xce\x03\x00\x80\x9d\x69\x1d\xe3"
      "\x7f\x2b\x22\x7e\xd0\x3e\xfe\x1f\x8d\xa1\xf6\xd1\x29\x00\x00\x00\xb0\x9f"
      "\x34\x7f\x36\x12\x9f\x27\x11\x4d\x00\x00\x00\x60\xdf\x4a\xdb\x73\x60\x93"
      "\xb4\x94\xcd\x05\x18\x89\x34\x2d\x95\x3a\x73\x78\xbf\x13\x47\xd3\x6a\xad"
      "\xde\xf8\xd1\x5c\x6d\x6d\x79\xb6\x33\x57\xb6\x18\x85\x74\x6e\xa1\x5a\x19"
      "\xcf\xe6\x0a\x17\xa3\x90\xb4\xda\x13\xd9\x1c\xdb\x6e\xfb\x52\x44\x24\xc5"
      "\x67\xed\xc9\x88\x38\x11\x11\x7f\x19\x3d\xd2\x6e\x97\x66\x6a\xd5\xd9\xbc"
      "\x4f\x7e\x00\x00\x00\xc0\x01\x71\x6c\xcb\xf8\xff\xd3\xd1\xce\xf8\x1f\x00"
      "\x00\x00\xd8\x67\x8a\x79\x27\x00\x00\x00\x00\xec\x3a\xe3\x7f\x00\x00\x00"
      "\xd8\xff\x8c\xff\x01\x00\x00\x60\x5f\xfb\xd5\xcd\x9b\xad\xd2\xec\xde\xff"
      "\x7a\xf6\xce\xfa\xda\x62\xed\xce\xc5\xd9\x4a\x7d\xb1\xb4\xb4\x36\x53\x9a"
      "\xa9\xad\xae\x94\xe6\x6b\xb5\xf9\xf6\x77\xf6\x2d\x6d\xf7\x7a\xd5\x5a\x6d"
      "\xe5\x27\xb1\xbc\x76\xaf\xdc\xa8\xd4\x1b\xe5\xfa\xfa\xc6\xed\xa5\xda\xda"
      "\x72\xe3\xf6\xc2\x0b\xb7\xc0\x06\x00\x00\x00\xf6\xd0\x89\xef\x3f\x7c\x2b"
      "\x89\x88\xcd\x9f\x1e\x69\x97\x96\x43\x79\x27\x05\xec\x89\xe4\x55\x1e\xfc"
      "\xee\xee\xe5\x01\xec\xbd\xa1\xbc\x13\x00\x72\x33\x9c\x77\x02\x40\x6e\x0a"
      "\x79\x27\x00\xe4\x6e\xbb\xf3\x00\x7d\x27\xef\xfc\x7f\xf0\xb9\x00\x00\x00"
      "\xbb\x63\xec\xbb\xfd\xaf\xff\x3b\x37\x00\xfb\x5b\x9a\x77\x02\x00\xc0\x9e"
      "\x73\xfd\x1f\x0e\xae\x82\x19\x80\x70\xe0\x7d\x73\x9b\xed\xaf\x7f\xfd\xbf"
      "\xd9\x7c\xa5\x84\x00\x00\x80\x81\x1b\x69\x97\x24\x2d\x65\xd7\x02\x47\x22"
      "\x4d\x4b\xa5\x88\xe3\xed\xdb\x02\x14\x92\xb9\x85\x6a\x65\x3c\x1b\x1f\xbc"
      "\x39\x5a\xf8\x46\xab\x3d\xd1\x7e\x66\xf2\x6a\xff\x3b\x0c\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x58\xb3"
      "\x99\x44\x13\x00\x00\x00\xd8\xd7\x22\xd2\xf7\x93\xf6\xb7\xf9\x47\x8c\x8d"
      "\x9e\x1b\xd9\x7a\x7e\xe0\x50\xf2\xd9\x68\x7b\x19\x11\x77\xff\x71\xeb\x6f"
      "\xf7\xa6\x1b\x8d\xd5\x89\xd6\xfa\x8f\x9f\xae\x6f\xfc\x3d\x5b\x7f\x29\x8f"
      "\x33\x18\x00\x00\x00\xc0\x56\xdd\x71\x7a\x77\x1c\x0f\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x83\xf4\xe4\xf1"
      "\xfd\x99\x6e\xd9\xcb\xb8\x1f\xfe\x3c\x22\x8a\xbd\xe2\x0f\xc7\xe1\xf6\xf2"
      "\x70\x14\x22\xe2\xe8\x27\x49\x0c\x3f\xf7\xbc\x24\x22\x86\x06\x10\x7f\xf3"
      "\x41\x44\x9c\xec\x15\x3f\x69\xa5\x15\xc5\x2c\x8b\x5e\xf1\x8f\xe4\x18\x3f"
      "\x8d\x88\x63\x03\x88\x0f\x07\xd9\xc3\xd6\xfe\xe7\x7a\xaf\xf7\x5f\x1a\x67"
      "\xda\xcb\xde\xef\xbf\xe1\xac\xbc\xae\xfe\xfb\xbf\xf4\xe9\xfe\x6f\xa8\xcf"
      "\xfe\xe7\xf8\x0e\x63\x9c\x7a\xf4\x9f\x72\xdf\xf8\x0f\x22\x4e\x0d\xf7\xde"
      "\xff\x74\xe3\x27\x7d\xe2\x9f\xdd\x61\xfc\xdf\xfd\x76\x63\xa3\xdf\xb6\xe6"
      "\x3f\x23\xc6\x7a\x7e\xfe\x24\x2f\xc4\x2a\x37\x96\x56\xca\xf5\xf5\x8d\x8b"
      "\x0b\x4b\xd3\xf3\x95\xf9\xca\xf2\xe4\xe4\xc4\x95\xa9\xab\x53\x97\xa7\xc6"
      "\xcb\x73\x0b\xd5\x4a\xf6\xb3\x67\x8c\x3f\x7f\xef\xbf\x5f\xbe\xac\xff\x47"
      "\xfb\xc4\x2f\x6e\xd3\xff\x73\x3b\xec\xff\x17\x8f\xee\x3d\xfe\x76\xa7\x5a"
      "\xe8\x15\xff\xfc\xd9\xde\x9f\xbf\x27\xfb\xc4\x4f\xb3\xcf\xbe\x1f\x66\xf5"
      "\xd6\xf6\xb1\x6e\x7d\xb3\x53\x7f\xde\xe9\x7f\xbf\x71\xfa\x65\xfd\x9f\xed"
      "\xd3\xff\xed\xfe\xfe\xe7\x77\xd8\xff\x0b\xbf\xfe\xe3\x3b\x3b\x7c\x28\x00"
      "\xb0\x07\xea\xeb\x1b\x8b\xd3\xd5\x6a\x65\x55\x45\x45\x45\xe5\x69\x25\xef"
      "\x3d\x13\x00\x00\x30\x68\xcf\x0e\xfa\xf3\xce\x04\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\xae\xbd\xf8\x3a\xb1\xad\x31\x37"
      "\xf3\xe9\x2a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\xc0\x4b\x7d\x15\x00\x00\xff\xff\xc7\x70\xd4"
      "\xee",
      1207);
  syz_mount_image(
      /*fs=*/0x20000080, /*dir=*/0x20000500,
      /*flags=MS_REC|MS_SYNCHRONOUS|MS_RDONLY|MS_NOATIME|0x100*/ 0x4511,
      /*opts=*/0x20000180, /*chdir=*/0x12, /*size=*/0x4b4, /*img=*/0x20000a00);
  memcpy((void*)0x20000100, "ext4\000", 5);
  memcpy((void*)0x20000500, "./file2\000", 8);
  *(uint8_t*)0x20000040 = 0;
  memcpy(
      (void*)0x200012c0,
      "\x78\x9c\xec\xdd\xcf\x6f\x23\x57\x1d\x00\xf0\xaf\x27\x3f\xec\x6c\xb7\x9b"
      "\x5d\xe8\x01\x2a\x60\x17\x28\x2c\x68\xb5\x4e\xe2\x6d\x57\x55\x2f\xed\x5e"
      "\x40\xa8\xaa\x84\xa8\x38\x20\x0e\xdb\x90\x78\xa3\xb0\xf6\x7a\x89\x9d\xd2"
      "\x84\x48\xa4\x07\xfe\x02\x90\x40\xe2\x44\x4f\x9c\x39\x20\x71\x40\xea\x89"
      "\x03\x37\x8e\x48\x1c\x10\x52\x91\x40\x5a\x20\x02\x6d\x90\x40\x72\x35\x63"
      "\x27\x71\x13\xa7\x71\x6a\xc7\x6e\xe3\xcf\x47\x9a\xcc\xcc\x7b\x33\xf3\x7d"
      "\x6f\xbd\xe3\xf7\x66\x26\x99\x17\xc0\xd8\xba\x16\x11\xdb\x11\x31\x1d\x11"
      "\xaf\x45\xc4\x6c\x3b\x3d\xd7\x9e\xe2\xa5\xd6\x94\x6e\xf7\x78\x67\x6b\x69"
      "\x77\x67\x6b\x29\x17\xcd\xe6\xab\xff\xcc\x65\xf9\x69\x5a\x74\xec\x93\x7a"
      "\xa2\x7d\xcc\x42\x44\x7c\xe3\xab\x11\xdf\xc9\x1d\x8d\x5b\xdf\xd8\xbc\xbf"
      "\x58\xa9\x94\xd7\xda\xeb\x73\x8d\xea\xc3\xb9\xfa\xc6\xe6\xcd\xd5\xea\xe2"
      "\x4a\x79\xa5\xfc\xa0\x54\xba\xbd\x70\x7b\xfe\xf9\x5b\xcf\x95\x06\x56\xd7"
      "\xab\xd5\x5f\x3d\xfa\xca\xea\xcb\xdf\xfc\xed\x6f\x3e\xfd\xce\x1f\xb6\xbf"
      "\xfc\x83\xb4\x58\x17\xdb\x79\x9d\xf5\x18\xa4\x56\xd5\xa7\xf6\xe3\xa4\x26"
      "\x23\xe2\xe5\xb3\x08\x36\x02\x13\xed\xf9\xf4\x5e\xc2\x2f\xbb\x7c\xd8\x7c"
      "\x68\x25\x11\xf1\xb1\x88\xf8\x5c\x76\xfe\xcf\xc6\x44\xf6\xbf\x13\x00\x38"
      "\xcf\x9a\xcd\xd9\x68\xce\x76\xae\x03\x00\xe7\x5d\x92\xdd\x03\xcb\x25\xc5"
      "\x88\x48\x92\x76\x27\xa0\xd8\xba\x87\xf7\x54\x5c\x48\x2a\xb5\x7a\xe3\xc6"
      "\xbd\xda\xfa\x83\xe5\xd6\xbd\xb2\xcb\x31\x95\xdc\x5b\xad\x94\xe7\xaf\xe4"
      "\xff\xf4\xbd\x6c\xe3\xa9\x5c\xba\xbe\x90\xe5\x65\xf9\xd9\x7a\xe9\xd0\xfa"
      "\xad\x88\xb8\x12\x11\x3f\xc9\xcf\x64\xeb\xc5\xa5\x5a\x65\x79\x34\x5d\x1e"
      "\x00\x18\x7b\x4f\x74\xb6\xff\x11\xf1\x9f\x7c\x92\x14\x8b\x3d\xed\xea\x41"
      "\x0f\x00\x7c\x94\x15\x46\x5d\x00\x00\x60\xe8\xb4\xff\x00\x30\x7e\xb4\xff"
      "\x00\x30\x7e\x8e\x6d\xff\x9b\xfb\x4b\xed\x87\xfd\xdb\x43\x29\x0f\x00\x70"
      "\xf6\x5c\xff\x03\xc0\xf8\x39\xb6\xfd\x7f\xeb\xd2\x70\x0b\x02\x00\x0c\x8d"
      "\xeb\x7f\x00\x18\x2b\x5f\x7f\xe5\x95\x74\x6a\xee\xb6\xdf\x7f\xbd\xfc\xfa"
      "\xc6\xfa\xfd\xda\xeb\x37\x97\xcb\xf5\xfb\xc5\xea\xfa\x52\x71\xa9\xb6\xf6"
      "\xb0\xb8\x52\xab\xad\x64\xef\xec\xa9\x9e\x74\xbc\x4a\xad\xf6\x70\xe1\xd9"
      "\x58\x7f\x63\xae\x51\xae\x37\xe6\xea\x1b\x9b\x77\xab\xb5\xf5\x07\x8d\xbb"
      "\xd9\x7b\xbd\xef\x96\xa7\x86\x52\x2b\x00\xe0\xfd\x5c\xb9\xfa\xf6\x1f\x73"
      "\x11\xb1\xfd\xc2\x4c\x36\x45\xc7\x58\x0e\x07\x6d\x75\x7e\x44\xa5\x03\xce"
      "\x52\x32\xea\x02\x00\x23\x33\xd1\xcf\xce\x2e\xe6\xe1\x23\xcd\x68\x5f\x30"
      "\xbe\x7a\x6a\xc2\xb3\x4e\xc2\xef\xcf\xbc\x2c\xc0\x68\x74\x7d\x99\x77\xe1"
      "\x7d\x73\x5b\x7e\x76\x8a\x20\x7e\xcf\x08\x3e\x54\xae\x7f\xb2\x97\xfb\xff"
      "\xf1\x9e\x74\xe0\x7c\xf8\xd1\x69\x36\xf6\xb0\x00\xce\x95\x0f\x76\xff\xff"
      "\xc5\x81\x97\x03\x18\x3e\xf7\xff\x61\x7c\x35\x9b\xb9\xc3\x63\xfe\x4f\xef"
      "\x67\x01\x00\xe7\x52\x1f\xbf\xc2\xd7\xfc\xe1\xa0\x3a\x21\xc0\x48\x9d\x34"
      "\x98\xf7\x91\x47\xf7\x7b\x3b\x9c\xe6\xf9\x3f\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9c"
      "\x33\x17\x23\xe2\xbb\x91\x4b\x8a\xd9\xf0\xde\x49\xfa\x33\x29\x16\x23\x9e"
      "\x8c\x88\xcb\x31\x35\x19\xab\x95\xf2\x7c\x44\x5c\x8a\xab\x11\x31\x95\xbf"
      "\xb7\x5a\x29\x2f\x8c\xba\xd0\x00\x40\x9f\x92\xbf\xe7\xda\xc3\x79\x5d\x9f"
      "\x7d\xe6\xe2\xe1\xdc\xe9\xdc\x7f\xf3\xd9\x3c\x22\xbe\xff\xf3\x57\x7f\xfa"
      "\xc6\x62\xa3\xb1\xb6\x90\xa6\xff\x6b\x3f\x3d\xbf\x37\x1a\x58\xe9\x60\xbf"
      "\x3e\xc6\x15\x04\x00\x06\x2c\x6d\xbf\xa7\x4b\xad\xf9\x5a\xc7\x85\xfc\xe3"
      "\x9d\xad\xa5\xbd\x69\x98\xe5\x79\x74\x27\xfe\xdf\x1e\x8a\x78\x69\x77\x67"
      "\x2b\x9b\x5a\x39\x93\x91\x26\x46\x14\xb2\xbe\xc4\x85\x7f\xe7\x62\xb2\xbd"
      "\x4f\x21\x22\x9e\x8e\x88\x89\x01\xc4\xdf\x7e\x33\x22\x3e\xd1\xad\xfe\xb9"
      "\xec\xde\xc8\xe5\xf6\xc8\xa7\x9d\xf1\xa3\x1d\xfb\xc9\xa1\xc6\x4f\xde\x13"
      "\x3f\xc9\xf2\x5a\xf3\xb4\xf3\xf5\xf1\x01\x94\x05\xc6\xcd\xdb\x77\x22\xe2"
      "\xa5\x6e\xe7\x5f\x12\xd7\xb2\x79\xf7\xf3\xbf\x90\x7d\x43\xf5\xef\xd1\x9d"
      "\xd6\xc1\xf6\xbe\xfb\x76\x3b\xe2\x4f\xb6\x23\x4d\x74\x89\x9f\x9e\xf3\xd7"
      "\x7a\x8d\xf1\xec\xef\xbe\x76\x24\xb1\x39\xdb\xca\x7b\x33\xe2\xe9\xc9\x6e"
      "\xf1\x73\xfb\xf1\x73\xc7\xc4\x7f\xa6\xc7\xf8\x7f\xfe\xd4\x67\x7e\xfc\x62"
      "\x6b\x71\xe6\x48\x31\x7e\x11\x71\x3d\xba\xc7\xef\x8c\x35\xd7\xa8\x3e\x9c"
      "\xab\x6f\x6c\xde\x5c\xad\x2e\xae\x94\x57\xca\x0f\x4a\xa5\xdb\x0b\xb7\xe7"
      "\x9f\xbf\xf5\x5c\x69\xee\xde\x6a\xa5\x3c\xdf\xfa\xd9\x35\xfe\x3f\x5e\xb8"
      "\x71\xe9\xb8\xb2\xa5\xf5\xbf\x70\x4c\xfc\x42\xd7\xfa\x4f\xef\xef\xfb\x85"
      "\x1e\xeb\xff\xd6\xff\x5e\xfb\xf6\x67\x0f\x56\xf3\x87\xe3\x7f\xe9\xf3\xdd"
      "\x3f\xff\xa7\xba\xc6\x6f\x49\xdb\xc4\x2f\xf6\x18\x7f\xf1\xc2\xaf\x8f\x0c"
      "\xdf\xdd\x19\x7f\xf9\x98\xfa\x9f\xf4\xf9\xdf\xe8\x31\xfe\x3b\x7f\xdd\x5c"
      "\xee\x71\x53\x00\x60\x08\xea\x1b\x9b\xf7\x17\x2b\x95\xf2\x5a\x5f\x0b\xe9"
      "\x55\xe8\xc9\x1b\x17\x4e\x7f\xe4\xb4\x88\xbd\x6d\xbc\xd7\x5d\xec\xaf\x3a"
      "\x7f\x89\x01\xfc\x6b\x0c\x6a\x61\xaa\xef\xea\x8c\x6a\x61\x72\xbf\xaf\x38"
      "\xd8\x23\x7f\x2b\x3d\xe2\x90\xab\x93\x0c\xbc\x16\xa7\x5a\x98\x39\x54\xe5"
      "\xc7\x87\xb7\xf9\xdb\x07\x38\xf2\x4c\x0f\x9f\xce\x68\xbe\x8f\x80\xe1\x39"
      "\x38\xe9\x47\x5d\x12\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x38"
      "\xc3\xf8\x1b\xa6\xbd\x58\x83\x78\x5f\x06\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x74\x7a"
      "\x37\x00\x00\xff\xff\x64\x24\xc9\xfb",
      1395);
  syz_mount_image(/*fs=*/0x20000100, /*dir=*/0x20000500,
                  /*flags=MS_LAZYTIME|MS_SILENT|MS_NOSUID*/ 0x2008002,
                  /*opts=*/0x20000040, /*chdir=*/1, /*size=*/0x573,
                  /*img=*/0x200012c0);
  memcpy((void*)0x200000c0, "vfat\000", 5);
  memcpy((void*)0x20000540, "./file2\000", 8);
  syz_mount_image(/*fs=*/0x200000c0, /*dir=*/0x20000540,
                  /*flags=MS_MANDLOCK*/ 0x40, /*opts=*/0, /*chdir=*/0xfd,
                  /*size=*/0, /*img=*/0x20000300);
}
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);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}