// 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
#ifndef __NR_openat
#define __NR_openat 56
#endif
#ifndef __NR_write
#define __NR_write 64
#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*)0x20000040, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x20000500, "./file0\000", 8));
  NONFAILING(*(uint8_t*)0x20000280 = 0);
  NONFAILING(memcpy(
      (void*)0x20000a00,
      "\x78\x9c\xec\xdd\xdf\x6b\x1c\x5b\x1d\x00\xf0\xef\x4c\xb2\xb5\x3f\x52\x93"
      "\xaa\x0f\xb5\x60\x2d\xb6\x92\x16\xed\x6e\xd2\xd8\x36\xf8\x50\x2b\x88\x7d"
      "\x2a\xa8\xf5\xbd\x8d\xc9\x26\x84\x6c\xb2\x21\xbb\x69\x9b\x50\x34\xc5\x3f"
      "\x40\x10\x51\xc1\x27\x9f\x7c\x11\xfc\x03\x04\xe9\x9f\x20\x42\x41\xdf\x45"
      "\x45\x11\x6d\xef\x7d\xb8\x0f\xf7\x76\x2f\xbb\x3b\xdb\x1f\xb9\xbb\x49\xca"
      "\xdd\x64\x4a\xf6\xf3\x81\x93\x39\x33\xb3\xbb\xdf\xef\xc9\xb2\x67\x67\xe6"
      "\x1c\x76\x02\x18\x58\xe7\x22\xe2\x66\x44\xbc\x68\x34\x1a\x97\x22\x62\x34"
      "\xdb\x9e\x66\x25\xb6\xda\xa5\xf9\xb8\xe7\xcf\x1e\xcd\x36\x4b\x12\x8d\xc6"
      "\x9d\xff\x25\x91\x64\xdb\x3a\xaf\x95\x64\xcb\x13\xd9\xd3\x8e\x46\xc4\x0f"
      "\x6e\x45\xfc\x28\xf9\x64\xdc\xda\xc6\xe6\xd2\x4c\xa5\x52\x5e\xcb\xd6\x4b"
      "\xf5\xe5\xd5\x52\x6d\x63\xf3\xf2\xe2\xf2\xcc\x42\x79\xa1\xbc\x32\x35\x35"
      "\x79\x6d\xfa\xfa\xf4\xd5\xe9\x89\xbe\xb4\xb3\x99\xd3\x8d\xef\xfc\xeb\x97"
      "\x3f\xfb\xdd\x77\x6f\xfc\xe9\xeb\x0f\xfe\x7e\xf7\x3f\x17\x7f\xdc\x4c\x6b"
      "\x24\xdb\xff\x7a\x3b\xfa\xa9\xdd\xf4\x42\xeb\x7f\xd1\x31\x1c\x11\x6b\xfb"
      "\x11\x2c\x07\x43\x59\x7b\x0a\x79\x27\x02\x00\xc0\x9e\x34\x8f\xf1\x3f\x17"
      "\x11\x5f\x89\x88\x4b\x31\x1a\x43\xad\xa3\x39\x00\x00\x00\xe0\x30\x69\x7c"
      "\x6b\x24\x3e\x4c\x22\x1a\x00\x00\x00\xc0\xa1\x95\xb6\xe6\xc0\x26\x69\x31"
      "\x9b\x0b\x30\x12\x69\x5a\x2c\xb6\xe7\xcb\x7e\x21\x8e\xa7\x95\x6a\xad\xfe"
      "\xb5\xf9\xea\xfa\xca\x5c\x7b\xae\xec\x58\x14\xd2\xf9\xc5\x4a\x79\x22\x9b"
      "\x2b\x3c\x16\x85\xa4\xb9\x3e\xd9\xaa\xbf\x5a\xbf\xb2\x6d\x7d\x2a\x22\x4e"
      "\x45\xc4\x2f\x46\x8f\xb5\xd6\x8b\xb3\xd5\xca\x5c\xde\x17\x3f\x00\x00\x00"
      "\x60\x40\x9c\xd8\x76\xfe\xff\xfe\x68\xfb\xfc\x1f\x00\x00\x00\x38\x64\xc6"
      "\xf2\x4e\x00\x00\x00\x00\xd8\x77\xf7\xf2\x4e\x00\x00\x00\x00\xd8\x77\xc6"
      "\xff\x01\x00\x00\xe0\x50\xfb\xde\xed\xdb\xcd\xd2\xe8\xdc\xff\x7a\xee\xfe"
      "\xc6\xfa\x52\xf5\xfe\xe5\xb9\x72\x6d\xa9\xb8\xbc\x3e\x5b\x9c\xad\xae\xad"
      "\x16\x17\xaa\xd5\x85\xd6\x6f\xf6\x2d\xef\xf6\x7a\x95\x6a\x75\xf5\x1b\xb1"
      "\xb2\xfe\xb0\x54\x2f\xd7\xea\xa5\xda\xc6\xe6\xdd\xe5\xea\xfa\x4a\xfd\xee"
      "\xe2\x1b\xb7\xc0\x06\x00\x00\x00\x0e\xd0\xa9\x2f\x3f\xf9\x5b\x12\x11\x5b"
      "\xdf\x3c\xd6\x2a\x4d\x47\xf2\x4e\x0a\x38\x10\xb7\xde\xe6\xc1\xff\xdc\xbf"
      "\x3c\x80\x83\x37\x94\x77\x02\x40\x6e\x86\xf3\x4e\x00\xc8\x4d\x21\xef\x04"
      "\x80\xdc\x25\xbb\xec\xef\x39\x79\xe7\xcf\xfd\xcf\x05\x00\x00\xd8\x1f\xe3"
      "\x5f\xec\x3d\xfe\xbf\xf3\xb5\x81\xad\xf4\x00\xd2\x03\xf6\x91\x0f\x31\x0c"
      "\x2e\xe3\xff\x30\xb8\x8c\xff\xc3\xe0\x2a\x38\x02\x80\x81\xb7\xff\xe3\xff"
      "\x8d\xc6\x5b\x25\x04\x00\x00\xf4\xdd\x48\xab\x24\x69\x31\x1b\x0b\x1c\x89"
      "\x34\x2d\x16\x23\x4e\xb6\x6e\x0b\x50\x48\xe6\x17\x2b\xe5\x89\x88\xf8\x6c"
      "\x44\xfc\x75\xb4\xf0\x99\xe6\xfa\x64\xeb\x99\xc9\xae\xe7\x0c\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x5b"
      "\xa3\x91\x44\x03\x00\x00\x00\x38\xd4\x22\xd2\x7f\x27\xd9\xfd\xbf\xc6\x47"
      "\x2f\x8c\x6c\xbf\x3e\x70\x24\xf9\x60\xb4\xb5\x8c\x88\x07\xbf\xb9\xf3\xab"
      "\x87\x33\xf5\xfa\xda\x64\x73\xfb\xff\x5f\x6e\xaf\xff\x3a\xdb\x7e\x25\x8f"
      "\x2b\x18\x00\x00\x00\xc0\x76\x9d\xf3\xf4\xce\x79\x3c\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf4\xd3\xf3\x67"
      "\x8f\x66\x3b\xe5\x20\xe3\xfe\xf7\xdb\x11\x31\xd6\x2d\xfe\x70\x1c\x6d\x2d"
      "\x8f\x46\x21\x22\x8e\xbf\x97\xc4\xf0\x6b\xcf\x4b\x22\x62\xa8\x0f\xf1\xb7"
      "\x1e\x47\xc4\xe9\x6e\xf1\x93\x66\x5a\x31\x96\x65\xd1\x2d\xfe\xb1\x1c\xe3"
      "\xa7\x11\x71\xa2\x0f\xf1\x61\x90\x3d\x69\xf6\x3f\x37\xbb\x7d\xfe\xd2\x38"
      "\xd7\x5a\x76\xff\xfc\x0d\x67\xe5\xd3\xea\xdd\xff\xa5\x2f\xfb\xbf\xa1\x1e"
      "\xfd\xcf\xc9\x3d\xc6\x38\xf3\xf4\x0f\xa5\x9e\xf1\x1f\x47\x9c\x19\xee\xde"
      "\xff\x74\xe2\x27\x3d\xe2\x9f\xdf\x63\xfc\x7b\x3f\xdc\xdc\xec\xb5\xaf\xf1"
      "\xdb\x88\xf1\xae\xdf\x3f\xc9\x1b\xb1\x4a\xf5\xe5\xd5\x52\x6d\x63\xf3\xf2"
      "\xe2\xf2\xcc\x42\x79\xa1\xbc\x32\x35\x35\x79\x6d\xfa\xfa\xf4\xd5\xe9\x89"
      "\xd2\xfc\x62\xa5\x9c\xfd\xed\x1a\xe3\xe7\x5f\xfa\xe3\x8b\x9d\xda\x7f\xbc"
      "\x47\xfc\xb1\x5d\xda\x7f\x61\x8f\xed\xff\xe8\xe9\xc3\x67\x9f\x6f\x57\x0b"
      "\xdd\xe2\x5f\x3c\xdf\xfd\xfd\x3f\xdd\x23\x7e\x9a\x7d\xf7\x7d\x35\xab\x37"
      "\xf7\x8f\x77\xea\x5b\xed\xfa\xeb\xce\xfe\xfe\x2f\x67\x77\x6a\xff\x5c\x8f"
      "\xf6\xef\xf6\xfe\x5f\xdc\x63\xfb\x2f\x7d\xff\xa7\xff\xd8\xe3\x43\x01\x80"
      "\x03\x50\xdb\xd8\x5c\x9a\xa9\x54\xca\x6b\x2a\x2a\x03\x57\xf9\xc9\xbb\x91"
      "\xc6\x3b\x59\xc9\xbb\x67\x02\x00\x00\xfa\xed\xd5\x41\x7f\xde\x99\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xe0\x3a\x88\x9f"
      "\x13\xdb\x1e\x73\x2b\x9f\xa6\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\xec\xe8\xe3\x00\x00\x00"
      "\xff\xff\x8b\x89\xda\x33",
      1212));
  NONFAILING(syz_mount_image(
      /*fs=*/0x20000040, /*dir=*/0x20000500,
      /*flags=MS_REC|MS_SILENT|MS_RDONLY|MS_NODIRATIME|0x100*/ 0xc901,
      /*opts=*/0x20000280, /*chdir=*/1, /*size=*/0x4bb, /*img=*/0x20000a00));
  NONFAILING(memcpy((void*)0x20000100, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x20000500, "./file1\000", 8));
  NONFAILING(memcpy((void*)0x20000000, "nobarrier", 9));
  NONFAILING(*(uint8_t*)0x20000009 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000a, "noblock_validity", 16));
  NONFAILING(*(uint8_t*)0x2000001a = 0x2c);
  NONFAILING(memcpy((void*)0x2000001b, "journal_dev", 11));
  NONFAILING(*(uint8_t*)0x20000026 = 0x3d);
  NONFAILING(sprintf((char*)0x20000027, "0x%016llx", (long long)9));
  NONFAILING(*(uint8_t*)0x20000039 = 0x2c);
  NONFAILING(memcpy((void*)0x2000003a, "nodelalloc", 10));
  NONFAILING(*(uint8_t*)0x20000044 = 0x2c);
  NONFAILING(memcpy((void*)0x20000045, "max_batch_time", 14));
  NONFAILING(*(uint8_t*)0x20000053 = 0x3d);
  NONFAILING(sprintf((char*)0x20000054, "0x%016llx", (long long)0x400));
  NONFAILING(*(uint8_t*)0x20000066 = 0x2c);
  NONFAILING(memcpy((void*)0x20000067, "resgid", 6));
  NONFAILING(*(uint8_t*)0x2000006d = 0x3d);
  NONFAILING(sprintf((char*)0x2000006e, "0x%016llx", (long long)0xee01));
  NONFAILING(*(uint8_t*)0x20000080 = 0x2c);
  NONFAILING(memcpy((void*)0x20000081, "resuid", 6));
  NONFAILING(*(uint8_t*)0x20000087 = 0x3d);
  NONFAILING(sprintf((char*)0x20000088, "0x%016llx", (long long)0xee01));
  NONFAILING(*(uint8_t*)0x2000009a = 0x2c);
  NONFAILING(memcpy((void*)0x2000009b, "errors=remount-ro", 17));
  NONFAILING(*(uint8_t*)0x200000ac = 0x2c);
  NONFAILING(memcpy((void*)0x200000ad, "resgid", 6));
  NONFAILING(*(uint8_t*)0x200000b3 = 0x3d);
  NONFAILING(sprintf((char*)0x200000b4, "0x%016llx", (long long)0xee00));
  NONFAILING(*(uint8_t*)0x200000c6 = 0x32);
  NONFAILING(*(uint8_t*)0x200000c7 = 0);
  NONFAILING(memcpy(
      (void*)0x20000ec0,
      "\x78\x9c\xec\xdd\x5f\x6b\x5b\xe7\x19\x00\xf0\xe7\x1c\x5b\x59\xfe\x38\xb3"
      "\xc3\x76\x91\x05\x96\x85\x25\xc3\x0e\x5b\x24\x3b\x5e\x12\xb3\x8b\x6c\x83"
      "\xb1\x5d\x05\xb6\x65\xf7\x99\x67\xcb\xc6\x58\xb6\x8c\x25\x27\xb1\x09\x9b"
      "\xc3\x3e\xc0\x60\x94\xb6\xd0\xab\x5e\xf5\xa6\xd0\x0f\x50\x28\xf9\x08\xa5"
      "\x10\x68\xef\x4b\x5b\x5a\x4a\x9b\xb4\x17\xbd\x68\xa3\xa2\x7f\xa9\xe3\x48"
      "\xb1\x4d\x64\x29\x58\xbf\x1f\x1c\xeb\x3d\x47\x47\x7e\x9e\x47\x42\xaf\xf4"
      "\x9e\xf3\xa2\x13\x40\xdf\x3a\x13\x11\x17\x23\xe2\x51\xa5\x52\x39\x1f\x11"
      "\xc3\x8d\xed\x69\x63\xb9\x77\x2c\x22\x36\xeb\xfb\x3d\x7c\x70\x67\xa6\xba"
      "\x24\x51\xa9\x5c\xff\x22\x89\xa4\xb1\xad\xba\xff\xd8\x96\xff\xd9\x78\x48"
      "\x1c\x8e\x88\xbf\xff\x25\xe2\x5f\xc9\xd3\x71\x4b\xeb\x1b\x8b\xd3\x85\x42"
      "\x7e\xb5\xb1\x9e\x2b\x2f\xad\xe4\x4a\xeb\x1b\x17\x16\x96\xa6\xe7\xf3\xf3"
      "\xf9\xe5\xc9\xc9\x89\xcb\x53\x57\xa6\x2e\x4d\x8d\x77\xa4\xce\xa1\x88\xb8"
      "\xfa\xa7\x4f\x5e\xfe\xdf\x1b\x7f\xbe\xfa\xce\x6f\x6e\x7d\x78\xe3\xb3\xb1"
      "\x7f\x27\x8d\xed\xb1\xa5\x8e\x4e\xab\x97\x9e\xa9\x3d\x17\x4d\x83\x11\xb1"
      "\xba\x1f\xc1\x7a\x60\xa0\x51\x4f\xa6\xd7\x89\x00\x00\xb0\x2b\xcd\xef\xf9"
      "\xbf\x8c\x88\xf3\x31\x1c\x03\xb5\x6f\x73\x00\x00\x00\xc0\x41\x52\xf9\xfd"
      "\x50\x7c\x9b\x44\x54\x00\x00\x00\x80\x03\x2b\xad\xcd\x81\x4d\xd2\x6c\x63"
      "\x1e\xc0\x50\xa4\x69\x36\x5b\x9f\xc3\xfb\xd3\x38\x9a\x16\x8a\xa5\xf2\xaf"
      "\xe7\x8a\x6b\xcb\xb3\xf5\xb9\xb2\x23\x91\x49\xe7\x16\x0a\xf9\xf1\xc6\x5c"
      "\xe1\x91\xc8\x24\xd5\xf5\x89\x5a\xfb\x87\xf5\x8b\xdb\xd6\x27\x23\xe2\x44"
      "\x44\xbc\x34\x7c\xa4\xb6\x9e\x9d\x29\x16\x66\x7b\x7d\xf0\x03\x00\x00\x00"
      "\xfa\xc4\xb1\x6d\xe3\xff\xaf\x87\xeb\xe3\x7f\x00\x00\x00\xe0\x80\x19\xe9"
      "\x75\x02\x00\x00\x00\xc0\xbe\x33\xfe\x07\x00\x00\x80\x83\xcf\xf8\x1f\x00"
      "\x00\x00\x0e\xb4\xbf\x5e\xbb\x56\x5d\x2a\xcd\xeb\x5f\xcf\xde\x5c\x5f\x5b"
      "\x2c\xde\xbc\x30\x9b\x2f\x2d\x66\x97\xd6\x66\xb2\x33\xc5\xd5\x95\xec\x7c"
      "\xb1\x38\x5f\xfb\xcd\xbe\xa5\x9d\xfe\x5f\xa1\x58\x5c\xf9\x6d\x2c\xaf\xdd"
      "\xce\x95\xf3\xa5\x72\xae\xb4\xbe\x71\x63\xa9\xb8\xb6\x5c\xbe\xb1\xf0\xc4"
      "\x25\xb0\x01\x00\x00\x80\x2e\x3a\xf1\x8b\x7b\x1f\x24\x11\xb1\xf9\xbb\x23"
      "\xb5\xa5\xea\x50\xaf\x93\x02\xba\x62\x70\x2f\x3b\x7f\xbc\x7f\x79\x00\xdd"
      "\x37\xd0\xeb\x04\x80\x9e\xd9\xd3\xe7\x3f\x70\xa0\x64\x7a\x9d\x00\xd0\x73"
      "\xc9\x0e\xf7\xb7\x9d\xbc\xf3\x6e\xe7\x73\x01\x00\x00\xf6\xc7\xe8\xcf\x5a"
      "\x9f\xff\x4f\x76\x3c\x36\xb0\x99\x76\x29\x45\x60\x9f\x38\xfe\x07\xfd\xcb"
      "\xf9\x7f\xe8\x5f\xce\xff\x43\xff\xca\xc4\x40\x18\xc8\x43\x7f\xdb\xff\xf3"
      "\xff\x95\xca\x9e\x12\x02\x00\x00\x3a\x6e\xa8\xb6\x24\x69\x36\xa2\x76\x1c"
      "\x60\x28\xd2\x34\x9b\x8d\x38\x5e\xbb\x2c\x40\x26\x99\x5b\x28\xe4\xc7\x23"
      "\xe2\xc7\x11\xf1\xfe\x70\xe6\x47\xd5\xf5\x89\xda\x23\x93\x1d\xc7\x0c\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x40\x5d\xa5\x92\x44\x05\x00\x00\x00\x38\xd0\x22\xd2\x4f\x93\xc6\xf5\xbf"
      "\x46\x87\xcf\x0d\x6d\x3f\x3e\x70\x28\xf9\x66\xb8\x76\x1b\x11\xb7\x5e\xbb"
      "\xfe\xca\xed\xe9\x72\x79\x75\xa2\xba\xfd\xcb\xc7\xdb\xcb\xaf\x36\xb6\x5f"
      "\xec\xc5\x11\x0c\x00\x00\x00\x60\xbb\xe6\x38\xbd\x39\x8e\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x4e\x7a"
      "\xf8\xe0\xce\x4c\x73\xe9\x66\xdc\xcf\xff\x18\x11\x23\xad\xe2\x0f\xc6\xe1"
      "\xda\xed\xe1\xc8\x44\xc4\xd1\xaf\x92\x18\xdc\xf2\xb8\x24\x22\x06\x3a\x10"
      "\x7f\xf3\x6e\x44\x9c\x6c\x15\x3f\xa9\xa6\x15\x23\x8d\x2c\x5a\xc5\x3f\xd2"
      "\xc3\xf8\x69\x44\x1c\xeb\x40\x7c\xe8\x67\xf7\xaa\xfd\xcf\x1f\x5a\xbd\xff"
      "\xd2\x38\x53\xbb\x6d\xfd\xfe\xbb\x5c\xeb\xa1\x9e\x5f\xfb\xfe\x2f\x7d\xdc"
      "\xff\x0d\xb4\xe9\x7f\x8e\xef\x32\xc6\xa9\xfb\x6f\xe5\xda\xc6\xbf\x1b\x71"
      "\x6a\xb0\x75\xff\xd3\x8c\x9f\xb4\x89\x7f\x76\x97\xf1\xff\xf9\x8f\x8d\x8d"
      "\x76\xf7\x55\x5e\x8f\x18\x6d\xf9\xf9\x93\x3c\x11\x2b\x57\x5e\x5a\xc9\x95"
      "\xd6\x37\x2e\x2c\x2c\x4d\xcf\xe7\xe7\xf3\xcb\x93\x93\x13\x97\xa7\xae\x4c"
      "\x5d\x9a\x1a\xcf\xcd\x2d\x14\xf2\x8d\xbf\x2d\x63\xfc\xff\xe7\x6f\x3f\x7a"
      "\x56\xfd\x47\xdb\xc4\x1f\xd9\xa1\xfe\x73\xbb\xac\xff\xbb\xfb\xb7\x1f\xfc"
      "\xa4\xde\xcc\xb4\x8a\x3f\x76\xb6\xf5\xeb\x7f\xb2\x4d\xfc\xb4\xf1\xd9\xf7"
      "\xab\x46\xbb\x7a\xff\x68\xb3\xbd\x59\x6f\x6f\x75\xfa\xcd\xf7\x4e\x3f\xab"
      "\xfe\xd9\x36\xf5\xef\xf4\xfa\x8f\xed\xb2\xfe\xf3\x7f\xfb\xef\x47\xbb\xdc"
      "\x15\x00\xe8\x82\xd2\xfa\xc6\xe2\x74\xa1\x90\x5f\xed\xeb\xc6\x73\x3d\x1b"
      "\xd5\xaf\x45\x2f\x44\x15\x1a\x7b\x6d\xfc\xe7\xc5\x48\xe3\x85\x6c\xf4\xb6"
      "\x5f\x02\x00\x00\x3a\xef\xe9\x31\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xd0\x6d\xdd\xfc\x75\xbd\xa6\xcd\xde\x94\x0a\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\xf0\x4c\xdf\x07\x00\x00\xff\xff\xbc\xbe\xd4\xeb",
      1221));
  NONFAILING(syz_mount_image(
      /*fs=*/0x20000100, /*dir=*/0x20000500,
      /*flags=MS_POSIXACL|MS_REC|MS_SYNCHRONOUS|MS_SILENT|MS_NOSUID|0x904*/
      0x1c916, /*opts=*/0x20000000, /*chdir=*/0x1b, /*size=*/0x4c5,
      /*img=*/0x20000ec0));
  NONFAILING(memcpy((void*)0x20000180, "memory.events\000", 14));
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000180ul,
                /*flags=*/0x26e1ul, /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  NONFAILING(*(uint32_t*)0x200013c0 = 8);
  NONFAILING(memcpy(
      (void*)0x200013c4,
      "\x72\x84\xe7\x4c\x46\xd8\x80\xbf\x8e\xeb\xcf\x1e\xab\x33\x42\x40\xdd\x53"
      "\x4d\xce\x63\xd4\x13\x37\xff\xdf\xb7\x56\xcd\x11\x84\x56\x0b\xff\x6d\x5b"
      "\x6b\x56\xa7\x78\x6b\x59\x69\x85\x68\x6e\xd4\x6c\x72\x28\x04\xa8\x7b\x63"
      "\xa1\x0d\xcb\x6f\xcc\xea\x62\x89\x72\x78\xe6\xcb\x93\x35\x10\xf2\x20\xee"
      "\x93\x01\x23\xab\x7e\x93\x91\x8c\xe6\x9c\xce\x6c\x22\xb6\x39\xec\xa2\xbf"
      "\x07\x13\xf0\x9b\xa2\x7b\xac\x41\x96\x92\x1a\x4c\xb5\x1e\xac\x36\xf5\xe9"
      "\x35\xe3\xfe\x9c\x6f\xe0\xd3\xad\xd2\xaa\x99\x64\x54\xce\xf6\xea\x2a\xa0"
      "\xb3\xc8\x56\x9f\x3b\xdc\x14\x22\xbf\xab\xf2\x7e\xdf\xaa\x0d\x0c\xc4\x27"
      "\xad\x0d\xb5\x2f\x2f\x71\x55\x72\xca\x28\xa7\x1b\x15\xda\xac\x15\x66\x37"
      "\x39\x54\xb7\xf2\xb1\xa1\xfa\x32\x9e\x74\xcb\x72\xe5\x45\xc7\x2a\x45\x01"
      "\xd6\x9c\x09\xf7\xf5\xdd\xc4\x0d\xf6\x0c\x8f\x06\xbf\x86\x3d\x91\x50\x65"
      "\x46\xc6\x71\xeb\x5c\x4f\x59\xd3\xcf\xe4\x71\x86\x4e\xe3\x58\x47\x52\x36"
      "\xca\x00\x5b\x15\xc9\xee\x2a\x48\x2c\x9d\xff\xb7\x0b\x28\x07\x4c\xfe\xfb"
      "\x70\x21\xc0\xbe\x7b\x53\x4d\xda\x52\x00\x81\x5f\x00\x4e\x3f\xa0\x0b\xe6"
      "\x3f\x19\xb3\x9b\x42\xe6\x62\x2a\xf5\xe5\xbc\x1c\x78\x5e\xa2\x14\x13\xed"
      "\x02\xbe\xc0\x96\xe1\xe4\xd2\xdc\xd7\xcb\xe1\x45\x20\x05\xbd\xe2\x36\x6c"
      "\xd1\x77\x06\xd6\x2a\xa1\x8a\x1a\x24\x7a\xce\x57\x43\x0c\x83\x32\x3b\xe5"
      "\xb0\xdb\xdb\xaa\xd9\x2a\x7d\xc6\xb5\x8f\x6b\x22\x21\x3d\xbb\x77\x5f\x76"
      "\x1e\xe8\x57\xa6\x67\xc8\xdc\x14\x5e\x2c\x7b\x80\xd8\xf2\xf5\xa5\x15\x9a"
      "\x36\x7e\x96\xaa\x48\x44\x1c\xa0\xf4\xb4\x26\x67\x09\x55\x0f\xf7\xbf\xd1"
      "\xfa\x1a\xa8\x6e\x3a\x94\xc8\x20\x51\xa8\xc3\x58\x38\x8c\xf9\x5d\x7f\x96"
      "\xf0\x86\x7c\x91\x0a\xc7\x5e\x39\xbf\x4c\xaa\x72\xaf\x61\x9e\x71\x68\xc8"
      "\x76\xcf\x34\x27\x39\xc9\xe4\x55\x70\xa7\x8b\xd3\x21\x80\xc4\xca\x0f\x28"
      "\xbb\x51\x13\x04\x58\xe5\xce\x94\x84\x50\x89\xd7\xfa\x99\x0c\x93\x1b\x98"
      "\xc9\xe5\x76\x5c\x0d\x0e\x65\x14\x5b\x59\x50\x72\x6e\x7f\x0a\x68\x4c\x5f"
      "\xc6\x22\x23\x1d\x95\x38\x17\xb7\x53\x90\xde\x63\xb2\x54\x05\x54\xae\x84"
      "\x61\xd5\xbb\x35\x7b\x2e\xc3\x88\x33\x38\xc8\x09\x0d\xf3\x86\x93\x8a\xba"
      "\x21\xed\x5e\xf7\x3e\x56\xe9\x44\x20\x7c\x77\xf9\x48\x50\xaf\x15\xb5\xea"
      "\x91\x7b\x2d\x14\x85\x31\xe6\x0d\xdb\xc0\x04\x5e\xe8\x6f\x8b\x97\xf4\xed"
      "\xc5\xaa\x6c\x8e\x44\x2f\xa4\x66\x66\x12\x01\x28\xa9\xaa\xb6\x58\x3b\xa8"
      "\xc8\x42\x10\xcc\x60\xb3\x79\x77\x16\x73\xfa\xb3\x8f\xda\xee\xef\x3f\x2a"
      "\x2b\xbf\xbc\xd7\xb3\xf2\x5c\x04\x3a\xe0\x66\x7e\xe5\xfd\x65\xb5\xf6\xec"
      "\x3d\x89\x92\x5e\x3d\x4e\x49\x55\xed\x53\x2b\x15\xf5\xfa\x8d\x07\xed\xb0"
      "\xe9\xd3\x84\xe7\xbc\x5a\x66\x61\x3b\x4e\xd4\x92\x95\xed\x04\xbf\x3f\x3c"
      "\x7d\x95\x59\xc4\x69\x66\xc8\xf3\x78\x5e\xe0\xd1\x07\x74\x36\x6d\x2a\x22"
      "\x2e\xbe\xb0\xb2\x71\x75\x7f\xbe\xea\xd3\x20\xbe\x03\x2e\xae\xe0\x05\x64"
      "\xb7\xe9\x1b\x59\xf5\x51\xfe\x7c\xef\x63\xe1\x3b\xaf\x4c\x80\x7b\xd1\x6a"
      "\x5c\xcb\x51\xe8\x48\x1a\xf2\xcc\xfe\xf4\x47\x91\x95\x1e\xd5\x45\x2c\x43"
      "\x5e\xa0\xb5\xa1\xed\xe1\x70\x7a\x9b\x07\x80\x27\x0f\x91\xeb\xea\x34\xae"
      "\x0f\xc7\xda\x60\x78\x91\xa9\xc3\x2d\x12\x4b\x50\x42\x86\x56\x6d\x1c\x7a"
      "\x49\x20\x0d\x99\xcc\xbc\x81\xe9\x07\x0e\xa1\x7d\x30\x91\x2b\x09\xf3\x40"
      "\x31\xc2\xa7\x20\x80\xae\xb3\x5b\xd8\xd0\x95\xf7\x60\x76\x17\xc2\x22\xb5"
      "\x05\xdf\x2c\xeb\x15\x06\x12\x53\x31\x95\x5a\x87\xb3\xb0\x4d\x00\x42\x60"
      "\xb7\xaf\x1d\x30\xf0\xf9\x86\x6a\x76\xae\x37\x20\xc2\xda\xfb\xf1\x67\x81"
      "\x75\xb8\xfa\xbb\xb7\xfc\x94\x03\xb5\xe2\xf7\xb6\x77\x48\xef\x1a\x96\x13"
      "\xa7\x95\x7b\x97\x26\x82\x53\xaf\x96\xd1\xbe\x69\xa9\xc5\xb4\xea\xf0\xb8"
      "\xde\x6a\x73\x57\x5c\xbb\x8e\xbf\x1b\x63\x51\x39\xdc\xd6\xa0\xa5\xbc\xe1"
      "\x08\x43\xc7\x8f\x8a\x14\xbe\x3d\x9d\x88\xf6\xf8\x39\x6a\x2f\xa9\x95\xd0"
      "\xee\x50\xdb\xdf\xb8\x41\x03\x34\xb8\x09\x75\x4f\x3b\xd7\x50\x56\x84\xe6"
      "\xa4\x11\x18\x55\x61\x3b\x0a\x8a\x6b\x85\xd5\xae\xcb\xb1\x49\x0e\x4b\x60"
      "\x0f\xb4\x3d\x52\x39\x7f\x09\xb5\x82\x03\xf0\x25\xb9\xd0\x9a\xde\xd8\x87"
      "\x0b\x82\x2b\x6d\x78\x86\x7b\x16\x8f\xb9\xf3\x4f\xda\x00\x24\x06\xf2\xe7"
      "\x44\xad\x7f\xba\xf7\xcd\x68\x20\x0d\xe8\x72\x13\x8e\x7d\x10\x2c\xc8\x1d"
      "\x89\x48\xe3\x52\x55\xdb\x09\xf7\x37\x7f\x72\x5b\xd9\x7b\x42\xb8\xff\x25"
      "\x7e\xfd\xcf\x61\x6f\x9d\xb9\xb0\x1d\xa2\x21\xad\xa8\x3b\xd7\xbf\x18\x60"
      "\x34\x7b\xb3\x09\x6c\xb8\x0c\x7c\x1e\x20\x5b\x6f\xd7\x17\x4d\x65\xb9\x65"
      "\xd2\xd8\x96\xa2\x6a\x32\xf4\xa2\x2e\x77\x25\xe7\xf9\x50\x48\x73\x7a\x6f"
      "\xa8\xf1\x4a\x8a\x30\xb5\xc3\x0f\x9f\x1e\xe7\x4c\x2e\x24\x6c\x2a\x0d\x5b"
      "\x0f\xa7\x74\x12\x09\x6e\xa2\x5e\x78\x91\xd3\xc2\x0d\xfe\x42\xe5\xf8\x90"
      "\x2a\x7f\x38\xc8\x48\xd9\x1f\x6a\x51\x99\x58\x64\x66\x59\x8c\x33\x7d\x6a"
      "\x49\x59\x9b\xda\xcd\x44\xa1\x33\x75\xd9\x42\x20\x8b\xe0\x56\x08\xbc\xf3"
      "\x40\xd9\xfd\xfe\xe6\xea\x50\xa5\x0b\x3d\xd5\xd0\x4e\xe2\xb4\x09\xea\x25"
      "\xd6\xa2\xef\xe3\x04\xcb\xee\x73\x84\x4a\xd5\x91\x76\xbb\xa3\xa6\xf8\x73"
      "\xd8\x3a\x36\x54\x62\xdc\x07\x62\xeb\xba\x8c\xf3\xb2\x3e\x91\x4c\xa3\xb0"
      "\x09\xfd\x5d\xbb\x85\x13\x08\xf0\x15\xf9\x7a\xab\xaf\x00\x6e\x87\x89\xfc"
      "\x00\xa7\x65\x49\x95\xa4\xd0\x1e\x7c\x6f\x6a\x78\xf0\x2e\xae\x4c\x2f\xd7"
      "\x2c\x21\xdd\xf8\xd5\x57\x83\x6e\x81\x09\x1e\x7c\x6a\xdd\x22\x5f\xe7\xe0"
      "\x61\x59\x49\x7f\xfc\x54\x4c\x8d\xbb\x6d\xe0\x4d\x25\xf0\xa9\xe7\x42\x79"
      "\x93\x91\x11\x02\xa7\xc4\x23\x5c\x50\x40\x65\x61\xa2\xa0\x1a\x8a\x2d\xb3"
      "\x2e\x7f\xe4\x69\xd1\xef\x1f\x72\xcc\x67\x91\x22\x07\xd8\x96\xc3\x95\xcc"
      "\x10\x16\xdc\x24\xdf\x94\x44\x1b\x04\x8c\xf7\xf0\x8b\xb7\x3a\x29\x00\x95"
      "\x7f\xac\x32\xd0\xcd\xdd\x33\x00\x51\xc9\xe7\x5b\xba\x83\x88\xae\xf2\x36"
      "\x55\xeb\xea\x44\xf9\xca\xb1\x40\x47\xae\xfa\xd4\xcd\xf7\x13\x08\x85\xe5"
      "\xbc\xb6\x1e\x3d\xba\xbf\x62\x4c\xf5\xf9\xcb\x94\x0b\x1d\xe2\x1b\x97\x0f"
      "\xa2\x79\x7a\x31\x8e\xda\x45\x79\x6b\x4b\x73\x44\xda\x8a\x27\x0d\x79\x0c"
      "\xe2\x30\xc6\x22\x29\x30\xd2\x2e\xba\xb8\xf6\x98\x8f\x48\x00\xb7\xcc\x6c"
      "\x0e\xcf\x46\x71\x6f\x57\x85\x9a\x9b\x9e\xa5\x4e\x9e\x8c\x80\x6b\x13\xa5"
      "\x03\x71\x90\x4d\x50\x26\x04\xc6\xa6\xe9\x65\xec\xcb\x4a\x4a\x71\x77\x5b"
      "\xa2\x8c\x77\x8d\x1c\x2d\x0b\xda\x24\xf6\x7d\x82\xcd\x34\x88\x2d\xd5\xb8"
      "\xce\xf7\x5f\xa0\xce\x1c\x24\x2e\xd9\xbc\xda\x06\xb1\x58\x15\x22\x58\xca"
      "\x43\x18\xbc\x1c\x0b\xb6\x82\x71\x7a\x70\xc3\x38\x51\x72\xbc\xb7\xbd\x39"
      "\x60\xee\x15\xca\xaa\xd3\xf1\x0f\xc1\xb2\x17\x16\xd9\x0c\xcc\x45\xbc\xdb"
      "\xa0\xeb\x14\x1a\x63\xbf\xce\x37\x2b\x9c\xe3\x3f\x53\x84\x5e\x3e\x45\x0a"
      "\x22\x4d\x04\xff\x16\xe6\xb0\x72\x76\x6c\x6b\x9b\xa0\x74\x16\xe0\xf3\x53"
      "\x09\x37\x68\xb0\x82\xd5\x8e\x8a\xbf\xba\x50\xa4\xef\x9c\xa5\x33\x46\x0f"
      "\x4a\x10\xe2\x9f\xd0\xd0\x73\xb9\x95\x68\x22\xf6\x74\x3b\x9e\x0a\x72\x32"
      "\xf6\x68\xb5\x8d\x95\xa4\xe4\x5c\x5b\x43\x2d\x1a\xe7\x71\xa3\x9e\xd6\xdd"
      "\x8a\xfc\x2e\x8d\x6a\x5c\x9f\xd2\x45\xf4\xf8\x46\xd4\x79\xd1\x9c\x58\x83"
      "\xa6\x3e\x95\xd9\x59\x40\xeb\x62\xfb\x39\x0b\x0d\x5a\x00\x0f\xbe\x26\x4e"
      "\xd3\xa4\x8b\xc1\x99\xd5\xa1\x65\xf2\x93\xde\x24\xb0\x45\x1d\x70\x2c\x91"
      "\x40\x6d\xaf\x10\xa8\xec\x0a\x23\x80\x1b\xa2\x35\x28\x9f\x89\xd9\xd2\x30"
      "\x6d\x8f\x7c\xae\xee\x2e\xbd\x9e\x7b\xf2\xc5\xa8\xf9\xb5\xf6\x13\x9e\x8a"
      "\xda\xb6\x03\x7b\x02\x63\x0f\x5e\x25\x46\xac\x9e\x79\x8f\x6b\x04\x13\x92"
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      "\x7d\x49\xca\x3b\xb2\x76\xf2\xc2\xc1\x79\x7b\x67\xda\xf4\x00\xd2\x96\x4a"
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      "\xf0\xd6\x81\x8a\x02\x99\x24\x65\x9f\xcf\x7f\x01\xfb\x79\x45\xdf\x72\x17"
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      "\x5b\x2b\x69\x6d\x65\x74\xa9\xd7\xe8\xab\x2b\xae\x79\xb5\xcc\xd8\x07\x89"
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      "\x9a\x4a\x07\xa3\xc6\xb6\x97\xba\xaf\xc1\x2d\x5c\x7e\x67\xf8\xec\x72\x6d"
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      "\x28\x53\x6c\x88\xa0\x1b\xb9\xb7\xed\x74\xa1\xf6\xa7\xa5\xb5\xe8\xbc\x96"
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      "\xdf\x5d\x43\x72\x4e\x78\xb6\x9c\x5c\xf6\x3f\x3c\xe1\xc0\x97\x78\x22\xfc"
      "\xeb\x6c\x57\x94\xd6\x74\x69\xad\xaa\x94\xdb\xff\x35\xf2\x79\x47\x6f\xe6"
      "\x75\x21\x40\x7a\xbb\x03\xad\xb5\x05\xdf\x78\x45\xb2\xd8\x29\x6d\xbf\xa5"
      "\x2f\x56\x7d\x48\xdc\x53\xc9\x0a\x26\x90\x9e\x6b\x5a\x4a\x82\xdf\x91\xcd"
      "\x39\x3e\x97\xd9\xbe\xc1\x5a\xaf\xcc\x71\x6b\x4b\xf3\xe0\xeb\x3b\x60\xf3"
      "\x3c\x82\x9d\xc0\x82\xc7\x40\xbe\x3f\x9c\xf9\xa4\x0c\xb3\x69\xba\xf2\xc9"
      "\x2d\xba\x6a\x2f\xb3\xc7\x04\xc4\xae\xe9\x3f\x41\x3f\xd8\x7a\x92\x4c\x41"
      "\x44\x68\x3e\x51\xf5\xa5\x83\x38\xd9\x6d\x65\xc4\x57\x46\xb6\xc4\x68\x57"
      "\x39\x69\x87\x84\x17\x60\xa0\x03\xba\xae",
      4096));
  NONFAILING(*(uint16_t*)0x200023c4 = 0x1000);
  syscall(__NR_write, /*fd=*/r[0], /*data=*/0x200013c0ul, /*len=*/0x1006ul);
}
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;
}