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

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 279
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif

static unsigned long long procid;

static __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");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  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);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$ext4 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 74 34 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x4 (1 bytes)
  //    size: len = 0x512 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x512)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200004c0, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x20000500, "./bus\000", 6));
  NONFAILING(*(uint8_t*)0x20000540 = 0);
  NONFAILING(memcpy(
      (void*)0x20000c40,
      "\x78\x9c\xec\xdd\xcf\x6f\x54\x5b\x1d\x00\xf0\xef\x4c\x3b\x6d\x29\x85\x82"
      "\xb2\x50\xa3\x82\x88\xa2\x21\x4c\x7f\x00\x0d\x61\x23\x6c\x34\x86\x90\x18"
      "\x89\x2b\x17\x50\xdb\x69\x33\xe9\x0c\xd3\x74\x4a\xa4\x95\x45\x59\xba\x27"
      "\x91\xc4\x95\xfe\x09\xee\x5c\x98\xb0\xd2\xc4\x9d\x3b\xdd\x18\x37\xb8\x30"
      "\x41\x25\xef\x85\xbe\xe4\x2d\xe6\xe5\xde\xb9\xb4\x43\x7f\xbf\xd7\x76\x86"
      "\x76\x3e\x9f\xe4\xf6\xde\x73\xce\x30\xdf\x73\x3a\x9c\x73\xe6\x1e\x98\x39"
      "\x01\x74\xad\x0b\x11\xb1\x12\x11\x7d\x11\xf1\x30\x22\x86\xb3\xfc\x5c\x76"
      "\xc4\xed\xe6\x91\x3c\xee\xed\x9b\xa7\x53\xab\x6f\x9e\x4e\xe5\xa2\xd1\xb8"
      "\xff\xbf\x5c\x5a\x9e\xe4\x45\xcb\x9f\x49\x9c\xcc\x9e\x73\x20\x22\x7e\xfa"
      "\xa3\x88\x5f\xe4\x36\xc7\xad\x2f\x2d\xcf\x4d\x56\x2a\xa5\x85\x2c\x3d\xb2"
      "\x58\x9d\x1f\xa9\x2f\x2d\x5f\x2d\xe7\xb3\x9c\xf1\x89\xb1\x89\xd1\x9b\xd7"
      "\x6e\x8c\x1f\x58\x5b\xcf\x57\xff\xf0\xfa\x87\xe5\xbb\x3f\xfb\xd3\x1f\xbf"
      "\xf1\xea\x6f\x2b\xdf\xff\x55\x52\xad\xa1\x5f\x9f\x4a\xcb\x5a\xdb\x71\x90"
      "\x9a\x4d\x2f\xc4\x50\x4b\x5e\x6f\x44\xdc\x3d\x8c\x60\x1d\xd2\x9b\xfd\xfd"
      "\xe1\xe8\x49\x7a\xdb\x97\x22\xe2\x62\xda\xff\x87\xa3\x27\x7d\x35\x01\x80"
      "\xe3\xac\xd1\x18\x8e\xc6\x70\x6b\x1a\x00\x38\xee\x92\xfb\xff\xa1\xc8\xe5"
      "\x8b\xd9\x5a\xc0\x50\xe4\xf3\xc5\x62\x73\x0d\xef\x5c\x0c\xe6\x2b\xb5\xfa"
      "\xe2\x95\xe1\xda\xe3\x47\xd3\x91\xae\x61\x9d\x89\x42\x7e\xa6\x5c\x29\x8d"
      "\x66\x6b\x85\x67\xa2\x90\x4b\xd2\x63\xe9\xf5\x7a\x7a\xfc\xbd\xf4\xf3\xd2"
      "\xb5\x88\x38\x1b\x11\xcf\xfb\x4f\xa4\xe5\xc5\xa9\x5a\x65\xba\x93\x6f\x7c"
      "\x00\xa0\x8b\x9d\xdc\x30\xff\x7f\xdc\xdf\x9c\xff\x01\x80\x63\x6e\xa0\xd3"
      "\x15\x00\x00\xda\xce\xfc\x0f\x00\xdd\xa7\x75\xfe\xef\xef\x60\x3d\x00\x80"
      "\xf6\xf9\x1c\xf7\xff\x3e\x1d\x08\x00\xc7\x84\xf5\x7f\x00\xe8\x3e\xe6\x7f"
      "\x00\xe8\x3e\xbb\xce\xff\xcf\xda\x53\x0f\x00\xa0\x2d\x7e\x72\xef\x5e\x72"
      "\x34\x56\x9b\xdf\x7f\xfd\xee\x9b\xba\xaf\x4e\x97\xea\x73\xc5\xea\xe3\xa9"
      "\xe2\x54\x6d\x61\xbe\x38\x5b\xab\xcd\x56\x4a\xc5\xa9\x46\x63\xb7\xe7\xab"
      "\xd4\x6a\xf3\x63\xd7\xd7\x92\xf5\xa5\xe5\x07\xd5\xda\xe3\x47\x8b\x0f\xca"
      "\xd5\xc9\xd9\xd2\x83\x52\xe1\x30\x1b\x03\x00\xec\xc9\xd9\xf3\x2f\xff\x91"
      "\x4c\xfa\x2b\xb7\x4e\xa4\x47\xb4\xec\xe5\x60\xae\x86\xe3\x2d\xdf\xe9\x0a"
      "\x00\x1d\xd3\xd3\xe9\x0a\x00\x1d\xd3\x1b\x11\x7f\x59\xe9\x74\x2d\x80\x4e"
      "\xd8\xc3\x3d\xbe\x65\x00\x38\xe6\xb6\xd8\xa2\xf7\x3d\xdb\xfe\x17\xa1\x17"
      "\x36\x7f\x85\xa3\xea\xf2\x57\xad\xff\x43\xb7\xda\xcf\xfa\xbf\xef\x02\x81"
      "\xa3\xed\x8b\xad\xff\xff\xe0\xc0\xeb\x01\xb4\x9f\x39\x1c\xba\x57\xa3\x91"
      "\xb3\xe7\x3f\x00\x74\x19\x6b\xfc\xc0\xbe\xfe\xfd\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\xba\xd4\x50\x7a\xe4\xf2\xc5\x74\x2f\xf0\x95\xe4\x67\xbe\x58\x8c\x38"
      "\x15\x11\x67\xa2\x90\x9b\x29\xf7\xa5\x8f\x3b\x1d\x11\x7f\xef\x2f\xf4\xcf"
      "\x94\x2b\xa5\xb1\x4e\x57\x1a\x00\xd8\xa7\xfc\x7f\x72\xd9\xfe\x5f\x97\x87"
      "\x2f\x0d\x6d\x2c\xed\xcb\x7d\xd2\x9f\x9e\x23\xe2\x97\xbf\xbd\xff\x9b\x27"
      "\x93\x8b\x8b\x0b\x63\x49\xfe\xff\xd7\xf2\x17\x5f\x64\xf9\xe3\x7d\x9d\x68"
      "\x00\x00\xd0\xea\xf6\xe6\xac\xe6\x3c\x9d\x9d\x5b\x6e\xe4\xdf\xbe\x79\x3a"
      "\xf5\xee\x68\x67\x15\x5f\xdf\x69\x6e\x2e\x9a\xc4\x5d\xcd\x8e\x66\x49\x6f"
      "\xf4\xa6\xe7\x81\x28\x44\xc4\xe0\x47\xb9\x2c\xdd\x94\xbc\x5f\xe9\x39\x80"
      "\xf8\x2b\xcf\x22\xe2\x2b\xeb\xed\x7f\xd2\x12\x61\x28\x5d\x03\x69\xee\x7c"
      "\xba\x31\x7e\x12\xfb\xd4\x21\xc4\x5f\xff\xfd\x6f\x8c\x9f\x7f\x2f\x7e\x3e"
      "\x2d\x4b\xce\x85\xf4\x77\xf1\xe5\x03\xa8\x0b\x74\x9b\x97\x77\x9a\xe3\x64"
      "\xd6\xf7\x92\x2e\x96\xf5\xbf\x7c\x5c\x48\xcf\x5b\xf7\xff\x81\x74\x84\xda"
      "\xbf\x64\xfc\x4b\xc6\x92\xd5\x4d\xe3\x5f\x7e\x6d\xfc\xeb\xd9\x14\x3f\x97"
      "\xf6\xf9\x0b\x6b\xe9\x9d\x6b\xf2\xfa\xfa\x9f\x7f\xbc\x29\xb3\x31\xdc\x2c"
      "\x7b\x16\xf1\xb5\xde\xad\xe2\xe7\xd6\xe2\xe7\xb6\x1e\x7f\x0b\x97\xf6\xd8"
      "\xc6\x7f\x7d\xfd\x9b\x17\xb7\x2b\x6b\xfc\x2e\xe2\xf2\x96\xed\x7f\xb7\x23"
      "\x75\x35\x1d\x66\x47\x16\xab\xf3\x23\xf5\xa5\xe5\xab\xe5\xea\xe4\x6c\x69"
      "\xb6\xf4\x68\x7c\x7c\x62\x6c\x62\xf4\xe6\xb5\x1b\xe3\x23\x33\xe5\x4a\x69"
      "\xb4\xf9\xf3\xaf\x5b\xc5\xf8\xef\xad\x2b\xa7\xb7\x8b\x9f\xb4\x7f\x70\x9b"
      "\xf8\x03\x3b\xb7\x3f\xbe\xb3\xc7\xf6\xff\xfe\xd3\x87\x3f\xff\xd6\x0e\xf1"
      "\xbf\xf7\xed\xad\x5f\xff\x73\x3b\xc4\x4f\xe6\xc4\xef\xee\x31\xfe\xe4\xe0"
      "\xed\x6d\xb7\xef\x4e\xe2\x4f\x6f\xd3\xfe\x5d\x5e\xff\xb8\xb2\xc7\xf8\xaf"
      "\xfe\xbd\x3c\xbd\xc7\x87\x02\x00\x6d\x50\x5f\x5a\x9e\x9b\xac\x54\x4a\x0b"
      "\xbb\x5c\x24\xef\x35\x77\x7b\x8c\x8b\xa3\x79\x11\x2b\x11\x07\xf5\x84\xe9"
      "\xa2\x44\x44\x7c\x08\xed\xca\x2e\x4e\xb4\x35\xe8\x3f\xb3\x8e\xf5\x61\xb4"
      "\x7d\x1f\x17\x9d\x1c\x95\x80\x76\x58\xef\xf4\x9d\xae\x09\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\xb0\x9d\xfa\xd2\xf2\x5c\xff\x21\x7f\x5a\xab"
      "\xd3\x6d\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\xe0\xf8\xfa\x2c\x00\x00\xff\xff\x28\xc2"
      "\xc6\x90",
      1298));
  NONFAILING(syz_mount_image(/*fs=*/0x200004c0, /*dir=*/0x20000500, /*flags=*/0,
                             /*opts=*/0x20000540, /*chdir=*/4, /*size=*/0x512,
                             /*img=*/0x20000c40));
  //  syz_mount_image$fuse arguments: [
  //    fs: nil
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x3000009 (8 bytes)
  //    opts: nil
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: const = 0x0 (8 bytes)
  //    img: nil
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000c0, "./bus\000", 6));
  NONFAILING(syz_mount_image(
      /*fs=*/0, /*dir=*/0x200000c0,
      /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_RDONLY|MS_NOEXEC*/ 0x3000009,
      /*opts=*/0, /*chdir=*/1, /*size=*/0, /*img=*/0));
  //  syz_mount_image$ext4 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 74 34 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 32 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x200001f (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              block_validity: buffer: {62 6c 6f 63 6b 5f 76 61 6c 69 64 69
  //              74 79} (length 0xe)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              errors_remount: buffer: {65 72 72 6f 72 73 3d 72 65 6d 6f 75
  //              6e 74 2d 72 6f} (length 0x11)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              journal_dev: fs_opt["journal_dev", fmt[hex, int32]] {
  //                name: buffer: {6a 6f 75 72 6e 61 6c 5f 64 65 76} (length
  //                0xb) eq: const = 0x3d (1 bytes) val: int32 = 0x0 (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noinit_itable: buffer: {6e 6f 69 6e 69 74 5f 69 74 61 62 6c
  //              65} (length 0xd)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0xfe (1 bytes)
  //    size: len = 0x4e5 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x4e5)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x20000040, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x20000000, "./file2\000", 8));
  NONFAILING(memcpy((void*)0x200001c0, "block_validity", 14));
  NONFAILING(*(uint8_t*)0x200001ce = 0x2c);
  NONFAILING(memcpy((void*)0x200001cf, "errors=remount-ro", 17));
  NONFAILING(*(uint8_t*)0x200001e0 = 0x2c);
  NONFAILING(memcpy((void*)0x200001e1, "journal_dev", 11));
  NONFAILING(*(uint8_t*)0x200001ec = 0x3d);
  NONFAILING(sprintf((char*)0x200001ed, "0x%016llx", (long long)0));
  NONFAILING(*(uint8_t*)0x200001ff = 0x2c);
  NONFAILING(memcpy((void*)0x20000200, "noinit_itable", 13));
  NONFAILING(*(uint8_t*)0x2000020d = 0x2c);
  NONFAILING(*(uint8_t*)0x2000020e = 0);
  NONFAILING(memcpy(
      (void*)0x20000980,
      "\x78\x9c\xec\xdd\x41\x6b\x1c\x6d\x1d\x00\xf0\xff\x4c\x76\x7d\x9b\x36\xaf"
      "\x9b\xaa\x87\x5a\xb0\x2d\xb6\x92\x14\xed\x26\x69\x6c\x1b\x3c\x54\x05\xd1"
      "\x53\x41\xad\xf7\x1a\x93\x6d\x08\xd9\x64\x4b\xb2\x69\x9b\x50\x34\xc5\x0f"
      "\x20\x88\xa8\xe0\x45\x4f\x5e\x04\x3f\x80\x20\xfd\x08\x22\x14\xf4\x2e\x2a"
      "\x8a\x68\xab\x07\x0f\xd5\x91\xdd\x9d\x8d\x69\xba\x9b\xa4\x74\xb3\xcb\x9b"
      "\xfd\xfd\xe0\xc9\xcc\x33\x3b\x3b\xff\xe7\x9f\x65\x9e\x9d\x67\x66\xd8\x09"
      "\x60\x68\x5d\x8a\x88\xc9\x88\xc8\xb2\x2c\xbb\x1a\x11\xa5\x7c\x79\x9a\x97"
      "\xd8\x69\x95\xc6\x7a\x2f\x5f\x3c\x59\x68\x94\x24\xb2\xec\xee\xdf\x93\x48"
      "\xf2\x65\xed\x6d\xbd\x97\x4f\xcf\xe4\x6f\x3b\x15\x11\x5f\xff\x4a\xc4\xb7"
      "\x92\x37\xe3\x6e\x6c\x6d\xaf\xcc\x57\xab\x95\xf5\xbc\x3e\x55\x5f\x4d\x5e"
      "\x65\xd9\xf6\xb5\xe5\xd5\xf9\xa5\xca\x52\x65\x6d\x76\x76\xe6\xe6\xdc\xad"
      "\xb9\x1b\x73\xd3\x3d\xc9\x73\x3c\x22\x6e\x7f\xe9\xcf\x3f\xfc\xde\xcf\xbf"
      "\x7c\xfb\xd7\x9f\x79\xf4\x87\x7b\x7f\x9d\xfc\x76\x2b\xc1\x96\xbd\x79\xf4"
      "\x52\x2b\xf5\x62\xf3\x7f\xd1\x56\x88\x88\xf5\xe3\x08\x36\x20\x85\x66\x86"
      "\x2d\x37\x06\xdc\x16\x00\x00\x0e\xd6\x38\xde\xff\x48\x44\x7c\x32\x22\xae"
      "\x46\x29\x46\x9a\x47\x73\x00\x00\x00\xc0\x49\x92\x7d\x7e\x2c\x5e\x25\xad"
      "\xeb\x7f\x00\x00\x00\xc0\xc9\x94\x46\xc4\x58\x24\x69\x39\xbf\xdf\x77\x2c"
      "\xd2\xb4\x5c\x6e\xdd\xc3\xfb\xb1\x38\x9d\x56\x6b\x1b\xf5\x4f\x67\xa5\xdd"
      "\xf3\x05\xe3\x51\x4c\xef\x2f\x57\x2b\xd3\xf9\xbd\x03\xe3\x51\x4c\x1a\xf5"
      "\x99\xfc\x1e\xdb\x76\xfd\xfa\xbe\xfa\x6c\x44\x9c\x8d\x88\x1f\x94\x46\x9b"
      "\xf5\xf2\x42\xad\xba\x38\xd0\x33\x1f\x00\x00\x00\x30\x3c\xce\xec\x1b\xff"
      "\xff\xab\xd4\x1a\xff\x03\x00\x00\x00\x27\xcc\xf8\xa0\x1b\x00\x00\x00\x00"
      "\x1c\x3b\xe3\x7f\x00\x00\x00\x38\xf9\x8c\xff\x01\x00\x00\xe0\x44\xfb\xea"
      "\x9d\x3b\x8d\x92\xb5\x9f\x7f\xbd\xf8\x70\x6b\x73\xa5\xf6\xf0\xda\x62\x65"
      "\x63\xa5\xbc\xba\xb9\x50\x5e\xa8\xad\x3f\x28\x2f\xd5\x6a\x4b\xcd\xdf\xec"
      "\x5b\x3d\x6c\x7b\xd5\x5a\xed\xc1\x67\x63\x6d\xf3\xf1\x54\xbd\xb2\x51\x9f"
      "\xda\xd8\xda\xbe\xb7\x5a\xdb\x5c\xab\xdf\x5b\x7e\xed\x11\xd8\x00\x00\x00"
      "\x40\x1f\x9d\xbd\xf8\xec\xf7\x49\x44\xec\x7c\x6e\x34\x8d\x88\x2c\xd9\xf3"
      "\x5a\x31\x22\x1b\xd9\xbb\x72\xa1\xff\xed\x03\x8e\x4f\xfa\x36\x2b\xff\xe9"
      "\xf8\xda\x01\xf4\xdf\xc8\xa0\x1b\x00\x0c\x8c\x43\x7a\x18\x5e\xc5\x41\x37"
      "\x00\x18\xb8\xc3\xfa\x81\xae\x37\xef\xfc\xa6\xf7\x6d\x01\x00\x00\x8e\xc7"
      "\xc4\xc7\x77\xaf\xff\x37\x0b\x30\x3c\xf2\xeb\xff\x49\x32\xe8\x86\x00\x7d"
      "\xe7\xfa\x3f\x0c\x2f\xd7\xff\x61\x78\x15\x0f\x3a\x02\x30\x28\x80\x13\x2f"
      "\x3d\xc2\xae\xfe\xee\xd7\xff\xb3\xec\xad\x1a\x05\x00\x00\xf4\xdc\x58\xb3"
      "\x24\x69\x39\x1f\x07\x8c\x45\x9a\x96\xcb\x11\xef\x37\x1f\x0b\x50\x4c\xee"
      "\x2f\x57\x2b\xd3\x11\xf1\xe1\x88\xf8\x5d\xa9\xf8\x5e\xa3\x3e\xd3\x7c\x67"
      "\xe2\xf4\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x1c\x51\x96\x25\x91\x75\x31\xba\xbb\x0e\x00\x00\x00\xf0"
      "\x41\x16\x91\xfe\x25\xc9\x9f\xff\x35\x51\xba\x32\xb6\xff\xfc\xc0\x87\x92"
      "\x7f\x97\x9a\xd3\x88\x78\xf4\x93\xbb\x3f\x7a\x3c\x5f\xaf\xaf\xcf\x34\x96"
      "\xff\x63\x77\x79\xfd\xc7\xf9\xf2\xeb\xfd\x3e\x7b\x01\x00\x00\x00\x74\xd2"
      "\x1e\xa7\xb7\xc7\xf1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xd0\x4b\x2f\x5f\x3c\x59\x68\x97\x7e\xc6\xfd\xdb"
      "\x17\x23\x62\xbc\x53\xfc\x42\x9c\x6a\x4e\x4f\x45\x31\x22\x4e\xff\x33\x89"
      "\xc2\x9e\xf7\x25\x11\x31\xd2\x83\xf8\x3b\x4f\x23\xe2\x5c\xa7\xf8\x49\xa3"
      "\x59\x31\x9e\xb7\x62\x7f\xfc\x34\x22\x46\x07\x1c\xff\x4c\x0f\xe2\xc3\x30"
      "\x7b\xd6\xe8\x7f\xbe\xd0\x69\xff\x4b\xe3\x52\x73\xda\x79\xff\x2b\xe4\xe5"
      "\x5d\x75\xef\xff\xd2\xdd\xfe\x6f\xa4\x4b\xff\xf7\x7e\xa7\x0d\xa6\x6f\x2e"
      "\x3a\xff\xfc\x97\x53\x5d\xe3\x3f\x8d\x38\x5f\xe8\xdc\xff\xb4\xe3\x27\x5d"
      "\xe2\x5f\x3e\x62\x8e\xdf\xfc\xc6\xf6\x76\xb7\xd7\xb2\x9f\x45\x4c\x74\xfc"
      "\xfe\x49\x5e\x8b\x35\x95\x14\x1e\x4c\x6d\x6c\x6d\x5f\x5b\x5e\x9d\x5f\xaa"
      "\x2c\x55\xd6\x66\x67\x67\x6e\xce\xdd\x9a\xbb\x31\x37\x3d\x75\x7f\xb9\x5a"
      "\xc9\xff\x76\x8c\xf1\xfd\x4f\xfc\xea\xbf\x07\xe5\x7f\xba\x4b\xfc\xf1\x43"
      "\xf2\xbf\x72\xc4\xfc\xff\xf3\xfc\xf1\x8b\x8f\xb6\x66\x8b\xfb\x5e\x2a\xc6"
      "\x4f\xb3\x6c\xf2\x72\xe7\xcf\xff\x5c\x97\xf8\xed\xef\xbe\x4f\xe5\x1f\x77"
      "\xa3\x3e\xd1\x9e\xdf\x69\xcd\xef\x75\xe1\x17\xbf\xbd\x70\xf1\x80\xfc\x17"
      "\xbb\xe4\x7f\xd8\xe7\x3f\x79\xc4\xfc\xaf\x7e\xed\xbb\x7f\x3c\xe2\xaa\x00"
      "\x40\x1f\x6c\x6c\x6d\xaf\xcc\x57\xab\x95\x75\x33\x66\x8e\x6d\x66\x34\xfa"
      "\x18\x74\x3e\x0e\x5a\xa7\x7d\x10\xdb\x87\xf6\x7c\x27\x0f\xf5\xae\xdb\xc9"
      "\x4a\x83\xd8\x4f\x07\xd8\x29\x01\x00\x00\xc7\xe2\xff\x07\xfd\x83\x6e\x09"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\xaf\xc3"
      "\x7e\x06\x2c\x7a\xf0\x73\x62\xfb\x63\xee\x0c\x26\x55\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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"
      "\x03\xfd\x2f\x00\x00\xff\xff\xe5\xd7\xca\x9b",
      1253));
  NONFAILING(syz_mount_image(
      /*fs=*/0x20000040, /*dir=*/0x20000000,
      /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_RDONLY|MS_NOSUID|MS_NOEXEC|0x4*/
      0x200001f, /*opts=*/0x200001c0, /*chdir=*/0xfe, /*size=*/0x4e5,
      /*img=*/0x20000980));
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-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=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  install_segv_handler();
  use_temporary_dir();
  loop();
  return 0;
}