// https://syzkaller.appspot.com/bug?id=82ad35bc46edf3f7249743dfc76b48af0a13c78e
// 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
#ifndef __NR_unlinkat
#define __NR_unlinkat 35
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

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 setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data))
      printf("write to %s failed: %s\n", files[i].name, strerror(errno));
  }
}

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_one(void)
{
  intptr_t res = 0;
  NONFAILING(memcpy((void*)0x200010c0, "hfsplus\000", 8));
  NONFAILING(memcpy((void*)0x20000080, "./file1\000", 8));
  NONFAILING(memcpy((void*)0x20000000, "barrier", 7));
  NONFAILING(*(uint8_t*)0x20000007 = 0x2c);
  NONFAILING(memcpy((void*)0x20000008, "gid", 3));
  NONFAILING(*(uint8_t*)0x2000000b = 0x3d);
  NONFAILING(sprintf((char*)0x2000000c, "0x%016llx", (long long)0));
  NONFAILING(*(uint8_t*)0x2000001e = 0x2c);
  NONFAILING(memcpy((void*)0x2000001f, "uid", 3));
  NONFAILING(*(uint8_t*)0x20000022 = 0x3d);
  NONFAILING(sprintf((char*)0x20000023, "0x%016llx", (long long)0));
  NONFAILING(*(uint8_t*)0x20000035 = 0x2c);
  NONFAILING(memcpy((void*)0x20000036, "nls", 3));
  NONFAILING(*(uint8_t*)0x20000039 = 0x3d);
  NONFAILING(memcpy((void*)0x2000003a, "cp737", 5));
  NONFAILING(*(uint8_t*)0x2000003f = 0x2c);
  NONFAILING(memcpy((void*)0x20000040, "nodecompose", 11));
  NONFAILING(*(uint8_t*)0x2000004b = 0x2c);
  NONFAILING(*(uint8_t*)0x2000004c = 0);
  NONFAILING(memcpy(
      (void*)0x200000c0,
      "\x78\x9c\xec\xdd\x4d\x68\x9c\x79\x1d\x07\xf0\xef\x33\x49\xa6\x9d\x0a\xd9"
      "\xd9\x97\xee\x56\x11\x5a\xb6\x58\x74\x8b\x6d\xd2\x71\x6d\x05\xc1\x2a\x22"
      "\x3d\x2c\x52\xf0\xb2\xd7\xd0\xa6\xdb\xd0\x69\xb7\x24\x59\x49\x8b\xd8\xf8"
      "\xb2\x7a\xd4\x93\xf4\xb0\x87\x15\xa9\x87\x3d\x89\x07\x61\xc5\x83\xb8\x9e"
      "\x05\xc1\x7b\xef\x05\xef\xbd\xe8\xc8\x33\xf3\x4c\x32\xc9\x64\xa7\x49\x9b"
      "\x49\x62\xf7\xf3\x81\x67\x9e\xff\xf3\xfc\xdf\x7e\xcf\x8f\xe7\xf9\x67\x66"
      "\x42\x48\x80\xcf\xac\x4b\x6f\x67\x6a\x35\x45\x2e\x9d\x7e\x6b\xa5\x3c\x7e"
      "\xf8\xa0\xd5\x7e\xf8\xa0\x75\xb3\x5f\x4e\x72\x28\x49\x2d\x99\xec\xed\x52"
      "\xdc\x4a\x8a\x4f\x92\x8b\xe9\x6d\xf9\x7c\x79\xb2\x1a\xae\xf8\xb4\x79\xde"
      "\x7c\xf4\xf1\x07\xa7\xee\x7f\xd4\xea\x1d\x4d\x56\x5b\xb7\x7d\x6d\x54\xbf"
      "\x75\x9d\x11\x33\xac\x56\x5b\x4e\x24\x99\xa8\xf6\xcf\x60\xc3\x78\x57\xb6"
      "\x18\xef\xde\x8e\x86\x2b\xd6\xe2\x2e\x13\x76\xb2\x9f\x38\xd8\x6f\x9d\x21"
      "\xab\x3b\xe9\xbe\x8d\xe7\x16\x38\xe8\xee\x25\x13\x53\x5b\x9c\x6f\x26\x47"
      "\x92\x1c\xae\xde\x07\xa4\x5a\x1d\x6a\x7b\x1c\xde\xae\xdb\xd1\x2a\x07\x00"
      "\x00\x00\x07\xd3\xc4\x93\x1a\xbc\xf0\x38\x8f\xb3\x92\xe9\xbd\x09\x07\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x9e\x0f\x45\xef\x7f\x06\x16\xd5\x56\xeb"
      "\x97\x4f\xa4\xe8\xff\xff\xff\x7a\x75\xae\x54\xaf\xef\x73\xbc\xcf\xe6\xfd"
      "\x6b\xfb\x1d\x01\x00\x00\x00\x00\x00\x00\x00\xec\x86\xe3\x8f\xf3\x38\x2b"
      "\x99\xee\x1f\x77\x8a\xee\xef\xfc\x5f\xef\x1e\xbc\xd2\x7d\xfd\x5c\xde\xcb"
      "\x52\xe6\xb3\x98\x33\x59\xc9\x5c\x96\xb3\x9c\xc5\xcc\x26\x53\xd3\x03\x03"
      "\xd5\x57\xe6\x96\x97\x17\x67\x87\x7b\xfe\x26\x65\xcf\x4e\xa7\x73\xaf\xea"
      "\x79\x2e\x49\x73\xa8\xe7\xb9\xbd\xb9\x5e\x00\x00\x00\x00\x00\x00\x00\x78"
      "\x4e\xfd\x34\x97\x32\xbd\xdf\x41\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\xa0\x22\x99\xe8\xed\xba\xdb\x2b\xfd\x72\x33\xb5\xc9\x24\x87\x93"
      "\xd4\xcb\x76\xab\xc9\x5f\xfa\xe5\x03\x67\x07\x51\xfd\x75\x9c\x71\x00\x00"
      "\x00\xc0\xc1\xd0\xa8\xf6\xd3\xc5\x7f\x7b\x85\x4e\xd1\xfd\xcc\xff\x6a\xf7"
      "\x73\xff\xe1\xbc\x97\x5b\x59\xce\x42\x96\xd3\xce\x7c\xae\x76\xbf\x0b\xe8"
      "\x7d\xbe\xae\xfd\x73\xb5\xd5\x7e\xf8\xa0\x75\xb3\xdc\x86\x07\xfe\xf6\xbf"
      "\x77\x14\x47\x77\xc4\xf4\xbe\x7b\xd8\x7a\xe6\x99\x6e\x8b\xa3\x6b\x3d\x2e"
      "\xe5\x7b\xf9\x41\x4e\xe7\x44\x2e\x67\x31\x0b\xf9\x61\xe6\xb2\x9c\xf9\x9c"
      "\xc8\x77\xcb\x8b\xc8\x5c\x8a\x34\xab\x6f\x2f\x9a\xfd\x38\xb7\x8e\xf7\xe2"
      "\x86\xa3\xcb\x9b\x63\x3b\xbe\xe9\xf8\x58\x37\x92\x46\xae\x65\xa1\x1b\xdb"
      "\x99\x5c\xa9\xf7\x43\xaf\x55\xf1\x1f\x1b\x98\xed\x4f\xf5\x64\xd3\x8c\x3f"
      "\x29\xb3\x53\x7c\xab\xb2\xcd\x1c\x5d\xad\xf6\xe5\x15\xfd\xba\xda\x57\x3a"
      "\x2f\x6c\x73\x8c\xf1\x68\x76\xaf\x7c\x6a\x2d\x23\x33\x55\xee\xcb\x6c\xbc"
      "\x38\x3a\xf7\x3b\xbc\x4f\x36\xcf\x34\x9b\xda\xda\xb7\x3d\xaf\xac\xcf\x52"
      "\x1e\x6e\x9e\xe9\xa9\x72\x7e\xa4\xda\x97\xb9\xfe\xc5\xc6\x9c\xef\xb6\x1d"
      "\x7e\x95\xb6\x39\x13\xe7\x52\xab\xee\xbe\xe4\xd5\x8d\x39\xbf\xfd\xa5\xfb"
      "\x2f\x6d\xec\xfc\x95\x7f\xfd\xed\xf2\xf5\xda\xad\x1b\xd7\xaf\x2d\x9d\x1e"
      "\xe3\x25\xed\x8d\xcd\x99\x68\x0d\x64\xe2\xb5\xd1\x77\x5f\x95\x89\x76\x99"
      "\x89\xd5\xed\x67\x62\x6a\xf3\x89\xc3\xcf\x7a\x0d\xbb\xa3\x5e\x65\xa3\xb7"
      "\x8a\x6e\x77\xb5\x2c\x4b\x73\x79\xbd\xdb\x77\xfa\x3f\x9d\x7c\x3f\xef\xe6"
      "\x6a\xe6\x73\x3e\x33\x99\xcd\x85\xcc\xe4\x1b\x39\x97\xd6\x86\x3b\xec\xe8"
      "\xe8\xbc\x76\x9f\xb5\xda\xf0\xb3\xd6\x18\x11\xfc\xc9\x2f\x0f\x34\xfa\xe5"
      "\x13\x1a\xef\xad\x32\xaf\x2f\x0e\xe4\x75\x70\xa5\x6b\x76\xeb\xaa\x33\x17"
      "\x7f\x95\x99\x81\x2c\xbd\xb4\x8d\x2c\xed\x70\x45\x9a\xfc\x42\x55\x28\xe7"
      "\xf8\xd9\xda\x4f\x9c\x83\x60\x43\x26\xaa\xb5\xb9\x1f\xdd\xcb\xa3\x33\xf1"
      "\xdb\x4e\xf9\xba\xd4\xbe\x75\x63\xf1\xfa\xdc\xed\x6d\xce\x77\xaa\xda\x97"
      "\x8f\xed\xfb\x1b\xd7\xe6\xdf\xed\xc6\xf5\x3c\xbd\xf2\x7e\x29\x57\xdc\xc9"
      "\xee\x51\x3f\x27\xe5\x0f\xe9\x99\x6e\xdd\xcb\x43\x75\xbd\x7c\xd5\xab\xdf"
      "\xb8\xf4\xea\x6a\x43\x75\x47\xd7\xea\x9a\x99\xce\xc2\x88\x27\xb5\x5e\xbd"
      "\x87\x1b\x1e\xa9\x57\xf7\xda\x96\x75\xad\x6e\xdd\xb1\x81\xba\x0d\xef\x72"
      "\xf2\x6e\xda\x6b\xef\x42\x00\x38\xc0\x8e\xbc\x71\xa4\xde\x78\xd4\xf8\x47"
      "\xe3\xc3\xc6\xcf\x1b\xd7\x1b\x6f\x1d\xfe\xce\xa1\x0b\x87\xbe\x58\xcf\xd4"
      "\xdf\x27\xff\x3c\xf1\x87\xda\xef\x6b\xdf\x2c\xde\xc8\x87\xf9\x71\xa6\xf7"
      "\x3b\x52\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x78\x1e\x2c\xdd\xb9\x7b\x63\xae\xdd\x9e\x5f"
      "\x1c\x6b\xa1\x78\xaa\x5e\xa9\x8d\x3d\xb0\xf5\xb9\x8a\xaa\x50\x1f\xff\x5c"
      "\x9f\xd9\xc2\x1f\x93\x8c\x68\x53\x7f\xe6\x29\x8a\xf1\xdf\xcf\xe5\x43\xb3"
      "\xfb\x23\x77\x26\x76\x6f\xc0\xc9\x11\x49\x38\x94\xb5\x33\x69\x0e\xb7\x69"
      "\x64\xfd\xcc\x7e\xaf\x4c\xc0\xb8\x9d\x5d\xbe\x79\xfb\xec\xd2\x9d\xbb\x5f"
      "\x5d\xb8\x39\xf7\xce\xfc\x3b\xf3\xb7\xce\x5d\x38\x7f\xe1\x7c\xeb\xeb\xb3"
      "\x5f\x3b\x7b\x6d\xa1\x3d\x3f\xd3\x7b\xdd\xef\x28\x81\x71\x58\xba\x73\x77"
      "\x62\xbf\x63\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x76\x66\xec\x7f\x2f"
      "\x51\x5f\x5c\xda\x7a\xe6\xe3\x7b\x7d\xa9\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\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\xff\xa9\x4b\x6f"
      "\x67\x6a\x35\x45\x66\x67\xce\xcc\x94\xc7\x0f\x1f\xb4\xda\xe5\xd6\x2f\xaf"
      "\xb7\x9c\x4c\x52\x4b\x52\xfc\x28\x29\x3e\x49\x2e\xa6\xb7\xa5\x39\x30\x5c"
      "\xf1\x69\xf3\xbc\xf9\xe8\xe3\x0f\x4e\xdd\xff\xa8\xb5\x3e\xd6\x64\xbf\x7d"
      "\x6d\x54\xbf\xed\x59\xad\xb6\x9c\x48\x32\x51\xed\x9f\xec\xd0\x16\xc3\x0c"
      "\x8f\x77\x65\x60\xbc\xd5\xa7\x0a\xaf\x58\xbb\xc2\x32\x61\x27\xfb\x89\x83"
      "\xfd\xf6\xbf\x00\x00\x00\xff\xff\xe2\x13\x06\x5e",
      1686));
  res = -1;
  NONFAILING(res = syz_mount_image(/*fs=*/0x200010c0, /*dir=*/0x20000080,
                                   /*flags=MS_REC|MS_NODIRATIME*/ 0x4800,
                                   /*opts=*/0x20000000, /*chdir=*/0,
                                   /*size=*/0x696, /*img=*/0x200000c0));
  if (res != -1)
    r[0] = res;
  NONFAILING(memcpy((void*)0x200007c0, "./file1\000", 8));
  syscall(__NR_unlinkat, /*fd=*/r[0], /*path=*/0x200007c0ul, /*flags=*/0ul);
  NONFAILING(memcpy((void*)0x20000000, "hfsplus\000", 8));
  NONFAILING(memcpy((void*)0x20000040, "./file0\000", 8));
  NONFAILING(memcpy((void*)0x200001c0, "gid", 3));
  NONFAILING(*(uint8_t*)0x200001c3 = 0x3d);
  NONFAILING(sprintf((char*)0x200001c4, "0x%016llx", (long long)0xee01));
  NONFAILING(*(uint8_t*)0x200001d6 = 0x2c);
  NONFAILING(memcpy((void*)0x200001d7, "type", 4));
  NONFAILING(*(uint8_t*)0x200001db = 0x3d);
  NONFAILING(memcpy((void*)0x200001dc, "\xe9\x09\xa6\x08", 4));
  NONFAILING(*(uint8_t*)0x200001e0 = 0x2c);
  NONFAILING(memcpy((void*)0x200001e1, "nls", 3));
  NONFAILING(*(uint8_t*)0x200001e4 = 0x3d);
  NONFAILING(memcpy((void*)0x200001e5, "koi8-ru", 7));
  NONFAILING(*(uint8_t*)0x200001ec = 0x2c);
  NONFAILING(memcpy((void*)0x200001ed, "creator", 7));
  NONFAILING(*(uint8_t*)0x200001f4 = 0x3d);
  NONFAILING(memcpy((void*)0x200001f5, "\xcb\x73\xa2\xaf", 4));
  NONFAILING(*(uint8_t*)0x200001f9 = 0x2c);
  NONFAILING(memcpy((void*)0x200001fa, "decompose", 9));
  NONFAILING(*(uint8_t*)0x20000203 = 0x2c);
  NONFAILING(memcpy((void*)0x20000204, "umask", 5));
  NONFAILING(*(uint8_t*)0x20000209 = 0x3d);
  NONFAILING(sprintf((char*)0x2000020a, "%023llo", (long long)0x7f));
  NONFAILING(*(uint8_t*)0x20000221 = 0x2c);
  NONFAILING(*(uint8_t*)0x20000222 = 0);
  NONFAILING(memcpy(
      (void*)0x20001040,
      "\x78\x9c\xec\xdd\xcd\x6b\x1c\xe7\x1d\x07\xf0\xef\xac\x57\x6b\xc9\x2d\xae"
      "\x92\xd8\x89\x29\x81\x0a\x1b\xd2\x82\xa8\xad\x17\x94\x56\xbd\xd4\x2d\xa5"
      "\xe8\x10\x4a\x48\x0f\x3d\x0b\x5b\x8e\x85\xd7\x72\x90\x94\xa2\x84\x52\xd4"
      "\xf7\x53\xa1\x94\xfc\x01\x69\x41\xb7\x9e\x0a\xed\xd9\xc5\x3d\xa7\xb7\x5c"
      "\x75\x0c\x14\x7a\x09\x3d\xf8\xa6\x32\xb3\xb3\xd6\x4a\x5a\xc9\x7a\x97\xdc"
      "\x7c\x3e\x66\xf6\x79\x66\x9f\x67\x9e\xf9\xcd\x6f\xe7\x65\x67\xd7\x62\x03"
      "\x7c\x61\xcd\x8c\xa6\xf9\x38\x45\x66\x46\xdf\x5a\x29\xe7\xd7\xd7\x26\xdb"
      "\xeb\x6b\x93\x17\xeb\xe6\x76\x92\xb2\xde\x48\x9a\x9d\x22\xc5\x42\x52\x3c"
      "\x49\x6e\x97\xed\x45\xcf\x94\x9e\x72\x87\x8f\xe6\xa7\xdf\xf9\xf4\xf3\xf5"
      "\xcf\x3a\x73\xcd\x7a\xaa\xfa\x37\xf6\x5a\x6e\x7f\x56\xeb\x29\x23\x49\x2e"
      "\xd4\xe5\x4e\x03\x87\x1a\xef\x4e\x92\xc1\x1d\x5d\x5a\xfb\x1d\x6b\x4b\xc7"
      "\x32\x69\x37\xea\x12\xce\xdc\xc6\x0e\xab\x07\x59\xfc\x88\xc7\x2d\x70\x96"
      "\xba\x57\xa7\xa2\x73\xdd\xdc\x61\x38\xb9\x54\x5f\xff\xaa\xf7\x04\xf5\xd9"
      "\xa1\x71\x7a\x11\x9e\x8c\x03\x9d\xe5\x00\x00\x00\xe0\xfc\xda\xd8\xab\xf1"
      "\x93\x47\xa7\x17\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfc\xbf\xa8\x7f"
      "\xff\xbf\xa8\xa7\x46\x5d\x66\x24\x45\xf7\xf7\xff\x5b\xdd\xe7\xea\xfa\x0b"
      "\xed\xf1\x59\x07\x00\x00\x00\x00\x00\x00\x00\x00\x07\xd3\xec\xf7\xe4\xd7"
      "\x9e\xe6\x69\x56\x72\xb9\x3b\xbf\x51\x54\xdf\xf9\x5f\xaf\x66\xae\x54\x8f"
      "\x5f\xca\xfb\x59\xca\x5c\x16\x73\x33\x2b\x99\xcd\x72\x96\xb3\x98\xf1\x24"
      "\xc3\x3d\x03\xb5\x56\x66\x97\x97\x17\xc7\xf7\xb1\xe4\x44\xdf\x25\x27\x4e"
      "\x64\x9b\x01\x00\x00\x00\x00\x00\x00\xe0\x8b\xe2\x97\x99\xd9\xfc\xfe\x1f"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xce\x83\x22\xb9\xd0\x29\xaa"
      "\xe9\x4a\xb7\x3e\x9c\x46\x33\x9d\xb6\x56\xd9\x6f\x35\xf9\x57\xb7\xfe\x82"
      "\x28\xfa\x3d\xf9\xf8\xf4\xe3\x00\x00\x00\x80\x23\x19\x3c\xc4\x32\x5f\x79"
      "\x9a\xa7\x59\xc9\xe5\xee\xfc\x46\x51\xdd\xf3\xbf\x5a\xdd\x2f\x0f\xe6\xfd"
      "\x2c\x64\x39\xf3\x59\x4e\x3b\x73\xb9\x5b\xdf\x43\x97\x77\xfd\x8d\xf5\xb5"
      "\xc9\xf6\xfa\xda\xe4\xc3\x72\xda\x39\xee\xf7\xfe\x73\xa0\x30\xaa\x11\xeb"
      "\xcf\x17\xfa\xaf\xf9\x5a\xd5\x63\x28\xf7\x32\x5f\x3d\x73\x33\x77\xaa\x60"
      "\xee\xa6\x51\x2d\x59\xba\xd6\x8d\xa7\x7f\x5c\xbf\x28\x63\x2a\xbe\x5b\xdb"
      "\x67\x64\xcd\xba\x2c\x57\xf6\x87\xdd\x3e\x45\x38\x13\xc3\x75\x70\xdd\x8c"
      "\x8c\xd5\xb1\x95\xd9\x78\xa9\x93\x81\xa2\xfa\xa0\x26\xd9\x9e\x89\xe7\xbe"
      "\x3a\xcd\xed\x6b\x4a\x23\x03\xcf\xd6\x34\x9e\xc6\xb3\x4f\x7e\xae\x9c\x40"
      "\xce\x2f\xd5\x65\xb9\x3d\xbf\x3d\x6f\x39\xef\x64\xa2\x91\x2a\x13\x13\x3d"
      "\x7b\xdf\xab\x7b\x67\x22\xf9\xfa\xdf\xfe\xf2\x93\xfb\xed\x85\x07\xf7\xef"
      "\x2d\x8d\x9e\x9f\x4d\x3a\xa4\xed\xfb\xc4\x64\x4f\x26\x5e\x7b\xa1\x33\xd1"
      "\x3c\x60\xff\xb1\x2a\x13\x57\x9f\xcd\xcf\xe4\x87\xf9\x71\x46\x33\x92\xb7"
      "\xb3\x98\xf9\xfc\x34\xb3\x59\xce\x5c\x36\xea\xf6\xd9\x7a\x7f\x2e\x1f\x87"
      "\xf7\xce\xd4\xed\x2d\x73\x6f\x3f\x2f\x92\x56\xfd\xba\x74\xce\xa2\xfb\x89"
      "\x69\x24\x3f\xa8\x6a\xb3\xb9\x5e\x2d\x7b\x39\xf3\x29\xf2\x28\x77\x33\x97"
      "\x37\xab\x7f\x13\x19\xcf\xb7\x32\x95\xa9\x4c\xf7\xbc\xc2\x57\x77\x8d\xbb"
      "\xda\xb6\xea\xa8\x6f\xec\x76\xd4\xff\xa3\x6f\xf0\x37\xbe\x51\x57\x86\x92"
      "\xfc\xae\x2e\xf7\xf4\xf7\x3f\x3e\xaf\xc7\x91\x75\x2e\xa9\x65\x5e\x5f\xea"
      "\xc9\xeb\x40\xcf\x39\x77\xb8\x6a\xeb\x7d\x66\x33\x4b\x2f\x77\xb3\x33\xd0"
      "\x77\xf0\xc3\x9c\x1b\x9b\x5f\xad\x2b\xe5\x3a\x7e\x55\x97\xe7\xc3\xf6\x4c"
      "\x8c\xf7\x64\xe2\x95\xbd\xf7\xf3\x3f\x55\xc7\xc6\x52\x7b\xe1\xc1\xe2\xfd"
      "\xd9\xf7\x76\x19\x7f\x75\xdb\xfc\x1b\x75\x59\xee\x71\xbf\xd9\xf7\x55\xa2"
      "\xff\x4b\x71\xbc\xca\xfd\xe5\xe5\x0c\xd6\x67\x92\xad\x7b\x47\xd9\xf6\xca"
      "\xb3\xb3\xcc\xd6\x7c\xb5\xea\x6f\x5c\x3a\x6d\x8d\x1d\x6d\x57\xab\xb6\xa2"
      "\xe8\x1e\xa9\x3f\xda\xf5\x48\x6d\xd5\xef\xe1\x76\x8e\x34\x51\xb5\xbd\xd6"
      "\xb7\x6d\xb2\x6a\xbb\xd6\xd3\xb6\xe5\xfd\x56\x1e\xa5\x9d\xbb\xa7\x90\x3f"
      "\x00\x8e\x68\x38\x97\x5a\x43\xff\x1e\xfa\x64\xe8\xe3\xa1\x5f\x0f\xdd\x1f"
      "\x7a\x6b\xf0\xfb\x17\xbf\x7d\xf1\xf5\x56\x06\xfe\x39\xf0\x9d\xe6\xd8\x85"
      "\x37\x1a\xaf\x17\x7f\xcd\xc7\xf9\xf9\xe6\xfd\x3f\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x70"
      "\x78\x4b\x1f\x7c\xf8\x60\xb6\xdd\x9e\x5b\xec\x5f\x69\xec\xde\x74\xbc\x95"
      "\xa2\xfe\x21\x9f\xd3\x58\xd7\x69\x54\x06\x93\x9c\x83\x30\xce\x69\xa5\xfb"
      "\x23\x82\xfd\xfb\xfc\x7e\xff\x03\xde\x3e\x17\x9b\xf3\x42\x57\x2e\x24\xe9"
      "\xd7\x74\xc6\x27\x26\xe0\xc4\xdd\x5a\x7e\xf8\xde\xad\xa5\x0f\x3e\xfc\xe6"
      "\xfc\xc3\xd9\x77\xe7\xde\x9d\x5b\x18\x98\x9a\x9a\x1e\x9b\x9e\x7a\x73\xf2"
      "\xd6\xbd\xf9\xf6\xdc\x58\xe7\xf1\xac\xa3\x04\x4e\xc2\xe6\x45\xff\xac\x23"
      "\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf6\xab\xdf\x1f\x06\x5c\xff\xf2"
      "\x71\xfc\xed\x4a\xcb\xff\x2c\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x8e\xc5\xcc\x68\x9a\x8f\x53"
      "\x64\x7c\xec\xe6\x58\x39\xbf\xbe\x36\xd9\x2e\xa7\x6e\x7d\xb3\x67\x33\x49"
      "\xa3\x91\x14\x3f\x4b\x8a\x27\xc9\xed\x74\xa6\x0c\xf7\x0c\x57\xe4\xcf\x4f"
      "\xfa\xae\xe7\xa3\xf9\xe9\x77\x3e\xfd\x7c\xfd\xb3\xcd\xb1\x9a\x9d\xfe\x49"
      "\xa3\x2e\x8f\x60\xb5\x9e\x32\x92\xe4\x42\x5d\x1e\xd7\x78\x77\x8e\x3c\x5e"
      "\xf1\xdf\xee\x16\x96\x09\xbb\xd1\x4d\x1c\x9c\xb5\xff\x05\x00\x00\xff\xff"
      "\xe5\xfa\xfa\xa7",
      1624));
  NONFAILING(syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000040, /*flags=*/0,
                             /*opts=*/0x200001c0, /*chdir=*/7, /*size=*/0x65a,
                             /*img=*/0x20001040));
}
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);
  setup_sysctl();
  install_segv_handler();
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}