// https://syzkaller.appspot.com/bug?id=47918174613db46c53bdf674594b8eb5db1881c5
// 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 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 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")) {
  }
}

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_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x20000040, "ext4\000", 5);
  memcpy((void*)0x20000200, "./bus\000", 6);
  *(uint8_t*)0x20000180 = 0;
  memcpy(
      (void*)0x200013c0,
      "\x78\x9c\xec\xdd\x4d\x6b\x1b\xd7\x1a\x00\xe0\x77\xc6\x76\xe2\x7c\xdc\x6b"
      "\x07\x42\xb8\xb7\x8b\x62\xc8\xa2\x29\x69\xa4\xd8\xee\x47\x0a\x5d\xa4\xcb"
      "\xd2\x86\x06\xda\x7d\x2a\x6c\xc5\x04\xcb\x51\xb0\xe4\x10\xbb\x81\x26\x8b"
      "\x66\xd3\x4d\x09\x85\x52\x1a\x28\xed\xbe\xfb\x2e\x43\xff\x40\x7f\x45\xa0"
      "\x0d\x84\x12\x4c\xbb\xe8\xc6\x65\xe4\x91\xa3\xc4\x92\x2d\x3b\xf2\x47\xa2"
      "\xe7\x81\xb1\xcf\x99\x19\xf9\x9c\x57\x33\xef\xf1\x19\x8d\x84\x02\xe8\x5b"
      "\x63\xd9\x8f\x34\xe2\xff\x11\xf1\x75\x12\x31\xd2\xb2\x6d\x30\xf2\x8d\x63"
      "\xab\xfb\x2d\x3f\xbe\x39\x95\x2d\x49\xac\xac\x7c\xf2\x67\x12\x49\xbe\xae"
      "\xb9\x7f\x92\xff\x3e\x92\x57\xfe\x17\x11\xbf\x7e\x19\x71\x3a\x5d\xdf\x6e"
      "\x6d\x71\x69\xb6\x54\xa9\x94\xe7\xf3\x7a\x31\x92\x6b\xc5\xda\xe2\xd2\x99"
      "\x2b\x73\xa5\x99\xf2\x4c\xf9\xea\xc4\xe4\xe4\xb9\xb7\x26\x27\xde\x7d\xe7"
      "\xed\x9e\xc5\xfa\xfa\xc5\xbf\xbf\xfb\xf8\xfe\x07\xe7\xbe\x3a\xb9\xfc\xed"
      "\xcf\x0f\x8f\xdd\x4d\xe2\x7c\x1c\xcd\xb7\xb5\xc6\xf1\x1c\x6e\xb5\x56\xc6"
      "\x62\x2c\x7f\x4e\x86\xe2\xfc\x33\x3b\x8e\xf7\xa0\xb1\xfd\x24\xd9\xeb\x0e"
      "\xb0\x2d\x03\x79\x9e\x0f\x45\x36\x06\x8c\xc4\x40\x9e\xf5\x6d\xad\x8c\xec"
      "\x66\xd7\x80\x1d\xf6\x45\x96\xd6\x40\x9f\x4a\xe4\x3f\xf4\xa9\xe6\x3c\xa0"
      "\x79\x6d\xdf\xa3\xeb\xe0\x17\xc6\xa3\xf7\x57\x2f\x80\xd6\xc7\x3f\xb8\xfa"
      "\xda\x48\x0c\x37\xae\x8d\x0e\x2f\x27\x4f\x5d\x19\x65\xd7\xbb\xa3\x3d\x68"
      "\x3f\x6b\xe3\x97\x3f\xee\xdd\xcd\x96\xe8\xdd\xeb\x10\x00\x9b\xba\x75\x3b"
      "\x22\xce\x0e\x0e\xae\x1f\xff\x92\x7c\xfc\xdb\xbe\xb3\x5d\xec\xf3\x6c\x1b"
      "\xc6\x3f\xd8\x3d\xf7\xb3\xf9\xcf\x1b\xed\xe6\x3f\xe9\xda\xfc\x27\xda\xcc"
      "\x7f\x8e\xb4\xc9\xdd\xed\xd8\x3c\xff\xd3\x87\x3d\x68\xa6\xa3\x6c\xfe\xf7"
      "\x5e\xdb\xf9\xef\xda\x4d\xab\xd1\x81\xbc\xf6\x9f\xc6\x9c\x6f\x28\xb9\x7c"
      "\xa5\x52\xce\xc6\xb6\xff\x46\xc4\xa9\x18\x3a\x98\xd5\x37\xb8\x9f\xf3\x59"
      "\xba\xfc\x60\xa5\xd3\xc6\xd6\xf9\x5f\xb6\x64\xed\x37\xe7\x82\x79\x3f\x1e"
      "\x0e\x1e\x7c\xfa\x31\xd3\xa5\x7a\xe9\xb9\x82\x6e\xf1\xe8\x76\xc4\x2b\x6d"
      "\xe7\xbf\xc9\xda\xf1\x4f\xda\x1c\xff\xec\xf9\xb8\xd8\x65\x1b\x27\xca\xf7"
      "\x5e\xed\xb4\x6d\xf3\xf8\x77\xd6\xca\x8f\x11\xaf\xb5\x3d\xfe\x4f\xee\x68"
      "\x65\xa5\x62\x7d\xae\xd3\xfd\xc9\x62\xe3\x7c\x28\x36\xcf\x8a\xf5\xfe\xba"
      "\x73\xe2\xb7\x4e\xed\xef\x75\xfc\xd9\xf1\x3f\xbc\x71\xfc\xa3\x49\xeb\xfd"
      "\xda\xda\xd6\xdb\xf8\x61\xf8\x9f\x72\xa7\x6d\xdb\x3d\xff\x0f\x24\x9f\x36"
      "\xca\x07\xf2\x75\x37\x4a\xf5\xfa\xfc\x78\xc4\x81\xe4\xa3\xf5\xeb\x27\x9e"
      "\x3c\xb6\x59\x6f\xee\x9f\xc5\x7f\xea\xe4\xc6\xe3\x5f\xbb\xf3\xff\x50\x96"
      "\xd8\x5d\xc6\x7f\xe7\xf8\x9d\xd6\x5d\x87\xb7\x16\xff\xce\xca\xe2\x9f\xde"
      "\xd2\xf1\xdf\x7a\xe1\xc1\x87\x9f\x7f\xdf\xa9\xfd\xee\x8e\xff\x9b\x8d\xd2"
      "\xa9\x7c\x4d\x37\xe3\x5f\xb7\x1d\x7c\x9e\xe7\x0e\x00\x00\x00\x00\x00\x00"
      "\xf6\x9b\x34\x22\x8e\x46\x92\x16\xd6\xca\x69\x5a\x28\xac\xbe\xbf\xe3\x78"
      "\x1c\x4e\x2b\xd5\x5a\xfd\xf4\xe5\xea\xc2\xd5\xe9\x68\x7c\x56\x76\x34\x86"
      "\xd2\xe6\x9d\xee\x91\x96\xf7\x43\x8c\xe7\xef\x87\x6d\xd6\x27\x9e\xa9\x4f"
      "\x46\xc4\xb1\x88\xf8\x66\xe0\x50\xa3\x5e\x98\xaa\x56\xa6\xf7\x3a\x78\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd8\x27\x8e\x44"
      "\x0c\xb7\xfb\xfc\x7f\xe6\xf7\x81\xbd\xee\x1d\xb0\xe3\x36\xf8\xca\x6f\xe0"
      "\x25\xd7\x39\xff\xf3\x2d\xbd\xf8\xa6\x27\x60\x5f\x6a\xcd\xff\x83\x7b\xd8"
      "\x0f\x60\xf7\x99\xff\x43\xff\xea\x22\xff\xd3\xdd\xe8\x07\xb0\xfb\xfc\xff"
      "\x87\xfe\x25\xff\xa1\x7f\xc9\x7f\xe8\x5f\xf2\x1f\xfa\xd7\x56\xf2\xff\xa7"
      "\x0b\x3b\xd8\x11\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x78\x39\x5c\xbc\x70\x21\x5b\x56\x96\x1f\xdf"
      "\x9c\xca\xea\xd3\xd7\x17\x17\x66\xab\xd7\xcf\x4c\x97\x6b\xb3\x85\xb9\x85"
      "\xa9\xc2\x54\x75\xfe\x5a\x61\xa6\x5a\x9d\xa9\x94\x0b\x53\xd5\xb9\xcd\xfe"
      "\x5e\xa5\x5a\xbd\x36\x3e\x11\x0b\x37\x8a\xf5\x72\xad\x5e\xac\x2d\x2e\x5d"
      "\x9a\xab\x2e\x5c\xad\x5f\xba\x32\x57\x9a\x29\x5f\x2a\x0f\xed\x4a\x54\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf0\x62\xa9\x2d"
      "\x2e\xcd\x96\x2a\x95\xf2\xbc\x82\xc2\xb6\x0a\x83\xfb\xa3\x1b\x9d\x0a\x69"
      "\x7e\xa2\xef\x97\xfe\xbc\x30\x85\x3d\x1e\x98\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xa0\xc5\xbf\x01\x00\x00\xff\xff\x8b\x1b\x36"
      "\xa1",
      1404);
  syz_mount_image(/*fs=*/0x20000040, /*dir=*/0x20000200,
                  /*flags=MS_RELATIME*/ 0x200000, /*opts=*/0x20000180,
                  /*chdir=*/0xfc, /*size=*/0x57c, /*img=*/0x200013c0);
  memcpy((void*)0x20000200, "./file1\000", 8);
  memcpy((void*)0x200001c0, "trusted.overlay.upper\000", 22);
  syscall(__NR_setxattr, /*path=*/0x20000200ul, /*name=*/0x200001c0ul,
          /*val=*/0x20001400ul, /*size=*/0x835ul, /*flags=*/0ul);
  memcpy((void*)0x20000080, "ext4\000", 5);
  memcpy((void*)0x200000c0, "./file1\000", 8);
  memcpy((void*)0x20000040, "nodelalloc", 10);
  *(uint8_t*)0x2000004a = 0x2c;
  memcpy((void*)0x2000004b, "grpid", 5);
  *(uint8_t*)0x20000050 = 0x2c;
  memcpy((void*)0x20000051, "auto_da_alloc", 13);
  *(uint8_t*)0x2000005e = 0x2c;
  *(uint8_t*)0x2000005f = 0;
  memcpy(
      (void*)0x200003c0,
      "\x78\x9c\xec\xdd\x4d\x6f\x5b\x59\x19\x00\xe0\xd7\xce\x97\x93\xc9\x4c\x32"
      "\xc3\x2c\x00\x01\x53\x86\x81\x82\xaa\x3a\x89\xdb\x46\x55\x17\x50\x56\x08"
      "\xa1\x4a\x88\x2e\x41\x6a\x43\xe2\x46\x51\xec\x38\x8a\x9d\xd2\x84\x2e\xd2"
      "\xff\x80\x44\x25\x56\xb0\xe4\x07\xb0\xee\x8a\x3d\x1b\x04\x3b\x36\x65\x81"
      "\xc4\x47\x04\x6a\x2a\xb1\x30\xba\xd7\x37\xa9\x9b\xda\x4d\x68\x12\x3b\x8a"
      "\x9f\x47\xba\xba\xf7\xdc\x63\xfb\x3d\x27\xce\x3d\xc7\x7e\x9d\xf8\x04\x30"
      "\xb0\x2e\x45\xc4\x4e\x44\x8c\x46\xc4\xfd\x88\x98\xca\xce\xe7\xb2\x2d\x6e"
      "\xb7\xb6\xe4\x76\x2f\x76\x1f\x2f\xee\xed\x3e\x5e\xcc\x45\xb3\x79\xf7\x9f"
      "\xb9\xb4\x3e\x39\x17\x6d\xf7\x49\xbc\x97\x3d\x66\x21\x22\x7e\xf4\xbd\x88"
      "\x9f\xe6\xde\x8c\x5b\xdf\xda\x5e\x5d\xa8\x54\xca\x1b\xad\xe2\xf8\x4c\xa3"
      "\xba\x3e\x53\xdf\xda\xbe\xba\x52\x5d\x58\x2e\x2f\x97\xd7\x4a\xa5\xf9\xb9"
      "\xf9\xd9\x9b\xd7\x6e\x94\x4e\xad\xaf\x9f\x54\x47\xb3\xa3\x2f\x3f\xff\xc3"
      "\xce\xb7\x7e\x9e\x34\x6b\x32\x3b\xd3\xde\x8f\xd3\xd4\xea\xfa\xc8\x41\x9c"
      "\xc4\x70\x44\xfc\xe0\x2c\x82\xf5\xc1\x50\xd6\x9f\xd1\x7e\x37\x84\x77\x92"
      "\x8f\x88\x8f\x22\xe2\xd3\xf4\xfa\x9f\x8a\xa1\xf4\xd9\x04\x00\x2e\xb2\x66"
      "\x73\x2a\x9a\x53\xed\x65\x00\xe0\xa2\xcb\xa7\x39\xb0\x5c\xbe\x98\xe5\x02"
      "\x26\x23\x9f\x2f\x16\x5b\x39\xbc\x8f\x63\x22\x5f\xa9\xd5\x1b\x57\x1e\xd4"
      "\x36\xd7\x96\x5a\xb9\xb2\xe9\x18\xc9\x3f\x58\xa9\x94\x67\xb3\x5c\xe1\x74"
      "\x8c\xe4\x92\xf2\x5c\x7a\xfc\xaa\x5c\x3a\x54\xbe\x16\x11\x1f\x46\xc4\x2f"
      "\xc6\xc6\xd3\x72\x71\xb1\x56\x59\xea\xe7\x0b\x1f\x00\x18\x60\xef\x1d\x9a"
      "\xff\xff\x33\xd6\x9a\xff\x01\x80\x0b\xae\xd0\xef\x06\x00\x00\x3d\x67\xfe"
      "\x07\x80\xc1\x63\xfe\x07\x80\xc1\x63\xfe\x07\x80\xc1\x63\xfe\x07\x80\xc1"
      "\x63\xfe\x07\x80\xc1\x63\xfe\x07\x80\x81\xf2\xc3\x3b\x77\x92\xad\xb9\x97"
      "\x7d\xff\xf5\xd2\xc3\xad\xcd\xd5\xda\xc3\xab\x4b\xe5\xfa\x6a\xb1\xba\xb9"
      "\x58\x5c\xac\x6d\xac\x17\x97\x6b\xb5\xe5\xf4\x3b\x7b\xaa\x47\x3d\x5e\xa5"
      "\x56\x5b\x9f\xbb\x1e\x9b\x8f\xa6\xbf\xbd\x5e\x6f\xcc\xd4\xb7\xb6\xef\x55"
      "\x6b\x9b\x6b\x8d\x7b\xe9\xf7\x7a\xdf\x2b\x8f\xf4\xa4\x57\x00\xc0\xdb\x7c"
      "\xf8\xc9\xb3\x3f\xe7\x22\x62\xe7\xd6\x78\xba\x45\xdb\x5a\x0e\xe6\x6a\xb8"
      "\xd8\xf2\xfd\x6e\x00\xd0\x37\x43\xfd\x6e\x00\xd0\x37\x56\xfb\x82\xc1\x75"
      "\x82\xf7\xf8\xd2\x03\x70\x41\x74\x58\xa2\xf7\x35\x85\x88\x18\x3f\x7c\xb2"
      "\xd9\x6c\x36\xcf\xae\x49\xc0\x19\xbb\xfc\x05\xf9\x7f\x18\x54\x6d\xf9\x7f"
      "\x7f\x05\x0c\x03\x46\xfe\x1f\x06\x97\xfc\x3f\x0c\xae\x66\x33\x77\xdc\x35"
      "\xff\xe3\xb8\x37\x04\x00\xce\x37\x39\x7e\xa0\xcb\xe7\xff\x1f\x65\xfb\xdf"
      "\x66\x1f\x0e\xfc\x64\xe9\xf0\x2d\x9e\x9e\x65\xab\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\xe0\x7c\xdb\x5f\xff\xb7\x98\xad\x05\x3e\x19\xf9\x7c\xb1\x18\xf1\x7e\x44"
      "\x4c\xc7\x48\xee\xc1\x4a\xa5\x3c\x1b\x11\x1f\x44\xc4\x9f\xc6\x46\xc6\x92"
      "\xf2\x5c\x9f\xdb\x0c\x00\x9c\x54\xfe\x6f\xb9\x6c\xfd\xaf\xcb\x53\x9f\x4d"
      "\x1e\xae\x1d\xcd\xbd\x1c\x4b\xf7\x11\xf1\xb3\x5f\xdd\xfd\xe5\xa3\x85\x46"
      "\x63\xe3\x8f\xc9\xf9\x7f\x1d\x9c\x6f\x3c\xcd\xce\x97\xfa\xd1\x7e\x00\xe0"
      "\x28\xfb\xf3\x74\xba\x6f\x7b\x23\xff\x62\xf7\xf1\xe2\xfe\xd6\xcb\xf6\xfc"
      "\xfd\xbb\x11\x51\x68\xc5\xdf\xdb\x1d\x8d\xbd\x83\xf8\xc3\x31\x9c\xee\x0b"
      "\x31\x12\x11\x13\xff\xce\x65\xe5\x96\x5c\x5b\xee\xe2\x24\x76\x9e\x44\xc4"
      "\xe7\x3b\xf5\x3f\x17\x93\x69\x0e\xa4\xb5\xf2\xe9\xe1\xf8\x49\xec\xf7\x7b"
      "\x1a\x3f\xff\x5a\xfc\x7c\x5a\xd7\xda\x27\x3f\x8b\xcf\x9d\x42\x5b\x60\xd0"
      "\x3c\x4b\xc6\x9f\xdb\x9d\xae\xbf\x7c\x5c\x4a\xf7\x9d\xaf\xff\x42\x3a\x42"
      "\x9d\x5c\x36\xfe\x25\x0f\xb5\xb8\x97\x8e\x81\xaf\xe2\xef\x8f\x7f\x43\x5d"
      "\xc6\xbf\x4b\xc7\x8d\x71\xfd\xf7\xdf\x6f\x1d\x8d\xbf\x59\xf7\x24\xe2\x8b"
      "\xc3\x11\xfb\xb1\xf7\xda\xc6\x9f\xfd\xf8\xb9\x2e\xf1\x3f\x3b\x66\xfc\xbf"
      "\x7c\xe9\x2b\x9f\x76\xab\x6b\xfe\x3a\xe2\x72\x74\x8e\xdf\x1e\x6b\xa6\x51"
      "\x5d\x9f\xa9\x6f\x6d\x5f\x5d\xa9\x2e\x2c\x97\x97\xcb\x6b\xa5\xd2\xfc\xdc"
      "\xfc\xec\xcd\x6b\x37\x4a\x33\x69\x8e\x7a\xa6\xfb\x6c\xf0\x8f\x5b\x57\x3e"
      "\xe8\x56\x97\xf4\x7f\xa2\x4b\xfc\xc2\x11\xfd\xff\xfa\x31\xfb\xff\x9b\xff"
      "\xde\xff\xf1\x57\xdf\x12\xff\x9b\x5f\xeb\x14\x3f\x1f\x1f\xbf\x25\x7e\x32"
      "\x27\x7e\xe3\x98\xf1\x17\x26\x7e\x57\xe8\x56\x97\xc4\x5f\xea\xd2\xff\xa3"
      "\x9e\xff\x2b\xc7\x8c\xff\xfc\xaf\xdb\x6f\x2c\x1b\x0e\x00\xf4\x4f\x7d\x6b"
      "\x7b\x75\xa1\x52\x29\x6f\xf4\xf2\x60\xff\x85\x44\x4f\x83\x3a\xb8\x00\x07"
      "\xc9\x6f\xcd\x39\x68\x46\xc7\x83\xef\xf4\x2a\xd6\x68\xfc\x5f\xf7\x6a\x36"
      "\xdf\x29\x56\xb7\x11\xe3\x34\xb2\x6e\xc0\x79\x70\x70\xd1\x47\xc4\xcb\x7e"
      "\x37\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe8\xa8\x17\xff\xb1"
      "\xd4\xef\x3e\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x70\x71\xfd\x2f\x00\x00\xff\xff\x3d"
      "\x7c\xce\xd6",
      1263);
  syz_mount_image(
      /*fs=*/0x20000080, /*dir=*/0x200000c0,
      /*flags=MS_SYNCHRONOUS|MS_RELATIME|MS_NOSUID|MS_NOEXEC|0x804*/ 0x20081e,
      /*opts=*/0x20000040, /*chdir=*/1, /*size=*/0x4ef, /*img=*/0x200003c0);
  memcpy((void*)0x20000280, "cgroup.controllers\000", 19);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000280ul,
                /*flags=*/0x275a, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x200001c0, "cpuset.effective_mems\000", 22);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200001c0ul,
                /*flags=*/0x275a, /*mode=*/0);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = r[1];
  *(uint64_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0;
  *(uint64_t*)0x20000018 = 5;
  *(uint64_t*)0x20000020 = 0;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc028660f, /*arg=*/0x20000000ul);
}
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 < 6; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}