// https://syzkaller.appspot.com/bug?id=0a52da0bbfd5ff2cd097edb1607fd2bda63a1c4d
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static __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 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x4500 (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 {
  //              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 {
  //              sysvgroups: buffer: {73 79 73 76 67 72 6f 75 70 73} (length
  //              0xa)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              dioread_lock: buffer: {64 69 6f 72 65 61 64 5f 6c 6f 63 6b}
  //              (length 0xc)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              grpquota: buffer: {67 72 70 71 75 6f 74 61} (length 0x8)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noauto_da_alloc: buffer: {6e 6f 61 75 74 6f 5f 64 61 5f 61 6c
  //              6c 6f 63} (length 0xf)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              resgid: fs_opt["resgid", fmt[hex, gid]] {
  //                name: buffer: {72 65 73 67 69 64} (length 0x6)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              barrier: buffer: {62 61 72 72 69 65 72} (length 0x7)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              auto_da_alloc: buffer: {61 75 74 6f 5f 64 61 5f 61 6c 6c 6f
  //              63} (length 0xd)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              usrquota: buffer: {75 73 72 71 75 6f 74 61} (length 0x8)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x12 (1 bytes)
  //    size: len = 0x4b4 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x4b5)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000040, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000000500, "./file1\000", 8));
  NONFAILING(memcpy((void*)0x200000000540, "errors=remount-ro", 17));
  NONFAILING(*(uint8_t*)0x200000000551 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000552, "sysvgroups", 10));
  NONFAILING(*(uint8_t*)0x20000000055c = 0x2c);
  NONFAILING(memcpy((void*)0x20000000055d, "dioread_lock", 12));
  NONFAILING(*(uint8_t*)0x200000000569 = 0x2c);
  NONFAILING(memcpy((void*)0x20000000056a, "grpquota", 8));
  NONFAILING(*(uint8_t*)0x200000000572 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000573, "noauto_da_alloc", 15));
  NONFAILING(*(uint8_t*)0x200000000582 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000583, "resgid", 6));
  NONFAILING(*(uint8_t*)0x200000000589 = 0x3d);
  NONFAILING(sprintf((char*)0x20000000058a, "0x%016llx", (long long)0));
  NONFAILING(*(uint8_t*)0x20000000059c = 0x2c);
  NONFAILING(memcpy((void*)0x20000000059d, "barrier", 7));
  NONFAILING(*(uint8_t*)0x2000000005a4 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000005a5, "auto_da_alloc", 13));
  NONFAILING(*(uint8_t*)0x2000000005b2 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000005b3, "usrquota", 8));
  NONFAILING(*(uint8_t*)0x2000000005bb = 0x2c);
  NONFAILING(*(uint8_t*)0x2000000005bc = 0);
  NONFAILING(memcpy(
      (void*)0x200000001b00,
      "\x78\x9c\xec\xdd\xdf\x6b\x5b\xd7\x1d\x00\xf0\xef\xbd\xb6\xb2\xfc\x70\x66"
      "\x67\xdb\x43\x16\x58\x16\x96\x0c\x27\x6c\x91\xec\x78\x49\xcc\x1e\xb2\x0c"
      "\xc6\xf2\x14\xd8\x96\xbd\x67\x9e\x2d\x1b\x63\xd9\x32\x96\x9c\xc4\x26\x0c"
      "\x87\xfd\x01\x83\x31\xd6\x42\x9f\xfa\xd4\x97\x42\xff\x80\x42\xc9\x9f\x50"
      "\x0a\x81\xf6\xbd\xb4\xa5\xa5\xb4\x49\xfb\xd0\x87\xb6\x2a\x92\xae\xd2\xc4"
      "\x95\x62\x87\xc8\xbe\x60\x7f\x3e\x70\x7c\xcf\xb9\x57\xd2\xf7\x7b\x6c\x74"
      "\x75\xcf\xbd\xc7\xba\x01\xec\x5b\xa7\x22\xe2\x6a\x44\x0c\x44\xc4\xb9\x88"
      "\x18\xce\xd6\xa7\x59\xb9\xd6\x6c\x6c\xb4\x1f\xf7\xe8\xe1\xdd\xe9\x66\x49"
      "\xa2\xd1\xb8\xf1\x59\x12\x49\xb6\xae\xf3\x5a\x57\xb3\xe5\x91\xf6\x53\xe2"
      "\x60\x44\xfc\xed\x5a\xc4\x3f\x93\x1f\xc6\xad\xad\xad\x2f\x4c\x55\x2a\xe5"
      "\x95\xac\x5d\xaa\x2f\x2e\x97\x6a\x6b\xeb\xe7\xe7\x17\xa7\xe6\xca\x73\xe5"
      "\xa5\x89\x89\xf1\x4b\x93\x97\x27\x2f\x4e\x8e\xf5\xa5\x9f\x23\x11\x71\xe5"
      "\x4f\x1f\xfd\xff\x3f\xaf\xfd\xf9\xca\x5b\xbf\xbd\xfd\xfe\xcd\x4f\xce\xfe"
      "\xab\x99\xd6\x50\xb6\xfd\xc9\x7e\xf4\x53\xbb\xeb\x85\xd6\xef\xa2\x63\x30"
      "\x22\x56\x76\x22\x58\x0e\x06\xb2\x65\x21\xe7\x3c\x00\x00\xd8\x9e\xe6\x31"
      "\xfe\x4f\x22\xe2\x57\xad\xe3\xff\xe1\x18\x68\x1d\x9d\x02\x00\x00\x00\x7b"
      "\x49\xe3\x0f\x43\xf1\x75\x12\xd1\x00\x00\x00\x00\xf6\xac\xb4\x35\x07\x36"
      "\x49\x8b\xd9\x5c\x80\xa1\x48\xd3\x62\xb1\x3d\x87\xf7\x67\x71\x38\xad\x54"
      "\x6b\xf5\xdf\xcc\x56\x57\x97\x66\xda\x73\x65\x47\xa2\x90\xce\xce\x57\xca"
      "\x63\xd9\x5c\xe1\x91\x28\x24\xcd\xf6\x78\x36\xc7\xb6\xd3\xbe\xb0\xa9\x3d"
      "\x11\x11\xc7\x22\xe2\x7f\xc3\x87\x5a\xed\xe2\x74\xb5\x32\x93\xf7\xc9\x0f"
      "\x00\x00\x00\xd8\x27\x8e\x6c\x1a\xff\x7f\x39\xdc\x1e\xff\x03\x00\x00\x00"
      "\x7b\xcc\x48\xde\x09\x00\x00\x00\x00\x3b\xce\xf8\x1f\x00\x00\x00\xf6\x3e"
      "\xe3\x7f\x00\x00\x00\xd8\xd3\xfe\x72\xfd\x7a\xb3\x34\x3a\xf7\xbf\x9e\xb9"
      "\xb5\xb6\xba\x50\xbd\x75\x7e\xa6\x5c\x5b\x28\x2e\xae\x4e\x17\xa7\xab\x2b"
      "\xcb\xc5\xb9\x6a\x75\xae\xf5\x9d\x7d\x8b\x5b\xbd\x5e\xa5\x5a\x5d\xfe\x5d"
      "\x2c\xad\xde\x29\xd5\xcb\xb5\x7a\xa9\xb6\xb6\x7e\x73\xb1\xba\xba\x54\xbf"
      "\x39\xff\xd4\x2d\xb0\x01\x00\x00\x80\x5d\x74\xec\x97\xf7\xdf\x4b\x22\x62"
      "\xe3\xf7\x87\x5a\xa5\xe9\x40\xde\x49\x01\xbb\x22\x79\x9e\x07\x7f\xb8\x73"
      "\x79\x00\xbb\x6f\x20\xef\x04\x80\xdc\x0c\xe6\x9d\x00\x90\x9b\x42\xde\x09"
      "\x00\xb9\xdb\xea\x3c\x40\xcf\xc9\x3b\x6f\xf7\x3f\x17\x00\x00\x60\x67\x8c"
      "\xfe\xbc\xf7\xf5\x7f\xe7\x06\x60\x6f\x4b\xf3\x4e\x00\x00\xd8\x75\xae\xff"
      "\xc3\xfe\x55\x30\x03\x10\xf6\xbd\x1f\x6f\xb1\xfd\xc5\xaf\xff\x37\x1a\xcf"
      "\x95\x10\x00\x00\xd0\x77\x43\xad\x92\xa4\xc5\xec\x5a\xe0\x50\xa4\x69\xb1"
      "\x18\x71\xb4\x75\x5b\x80\x42\x32\x3b\x5f\x29\x8f\x65\xe3\x83\x77\x87\x0b"
      "\x3f\x6a\xb6\xc7\x5b\xcf\x4c\x9e\xef\x7f\x87\x01\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x60\x1f\x6b\x34\x92\x68"
      "\x00\x00\x00\x00\x7b\x5a\x44\xfa\x71\xd2\xfa\x36\xff\x88\xd1\xe1\x33\x43"
      "\x9b\xcf\x0f\x1c\x48\xbe\x1a\x6e\x2d\x23\xe2\xf6\x2b\x37\x5e\xba\x33\x55"
      "\xaf\xaf\x8c\x37\xd7\x7f\xfe\x78\x7d\xfd\xe5\x6c\xfd\x85\x3c\xce\x60\x00"
      "\x00\x00\x00\x9b\x75\xc6\xe9\x9d\x71\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\xa3\x87\x77\xa7\x3b"
      "\x65\x37\xe3\x7e\xfa\xc7\x88\x18\xe9\x16\x7f\x30\x0e\xb6\x96\x07\xa3\x10"
      "\x11\x87\xbf\x48\x62\xf0\x89\xe7\x25\x11\x31\xd0\x87\xf8\x1b\xf7\x22\xe2"
      "\x78\xb7\xf8\x49\x33\xad\x18\xc9\xb2\xe8\x16\xff\x50\x8e\xf1\xd3\x88\x38"
      "\xd2\x87\xf8\xb0\x9f\xdd\x6f\xee\x7f\xae\x76\x7b\xff\xa5\x71\xaa\xb5\xec"
      "\xfe\xfe\x1b\xcc\xca\x8b\xea\xbd\xff\x4b\x1f\xef\xff\x06\x7a\xec\x7f\x8e"
      "\x6e\x33\xc6\x89\x07\x6f\x94\x7a\xc6\xbf\x17\x71\x62\xb0\xfb\xfe\xa7\x13"
      "\x3f\xe9\x11\xff\xf4\x36\xe3\xff\xe3\xef\xeb\xeb\xbd\xb6\x35\x5e\x8d\x18"
      "\xed\xfa\xf9\x93\x3c\x15\xab\x54\x5f\x5c\x2e\xd5\xd6\xd6\xcf\xcf\x2f\x4e"
      "\xcd\x95\xe7\xca\x4b\x13\x13\xe3\x97\x26\x2f\x4f\x5e\x9c\x1c\x2b\xcd\xce"
      "\x57\xca\xd9\xcf\xae\x31\xfe\xfb\x8b\x37\xbf\x7d\x56\xff\x0f\xf7\x88\x3f"
      "\xb2\x45\xff\xcf\x6c\xb3\xff\xdf\x3c\xb8\xf3\xf0\xa7\xed\x6a\xa1\x5b\xfc"
      "\xb3\xa7\xbb\x7f\xfe\x1e\xef\x11\x3f\xcd\x3e\xfb\x7e\x9d\xd5\x9b\xdb\x47"
      "\x3b\xf5\x8d\x76\xfd\x49\x27\x5f\x7f\xe7\xe4\xb3\xfa\x3f\xd3\xa3\xff\x5b"
      "\xfd\xfd\xcf\x6e\xb3\xff\xe7\xfe\xfa\xef\x0f\xb6\xf9\x50\x00\x60\x17\xd4"
      "\xd6\xd6\x17\xa6\x2a\x95\xf2\x8a\x8a\x8a\x8a\xca\xe3\x4a\xde\x7b\x26\x00"
      "\x00\xa0\xdf\xbe\x3f\xe8\xcf\x3b\x13\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xd8\xbf\x76\xe3\xeb\xc4\x36\xc7\xdc\xc8\xa7\xab"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\xcf\xf4\x5d\x00\x00\x00\xff\xff\xf7\xa1\xd5\x2c",
      1205));
  NONFAILING(syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x200000000500,
                             /*flags=MS_REC|MS_NOATIME|0x100*/ 0x4500,
                             /*opts=*/0x200000000540, /*chdir=*/0x12,
                             /*size=*/0x4b4, /*img=*/0x200000001b00));
  //  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 = 0x21 (1 bytes)
  //    size: len = 0x4a6 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x4a6)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x2000000004c0, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000000500, "./bus\000", 6));
  NONFAILING(*(uint8_t*)0x200000000240 = 0);
  NONFAILING(memcpy(
      (void*)0x200000000a40,
      "\x78\x9c\xec\xdd\xc1\x4f\x1b\xd9\x19\x00\xf0\x6f\x06\x08\x84\x90\x40\xda"
      "\x1c\xda\xaa\x6d\xd2\x34\x6d\x5a\x45\xb1\xc1\x49\x50\x94\x53\x7a\x69\x55"
      "\x45\x91\xaa\x46\x3d\xf5\x90\x50\x70\x10\xc2\xc6\x08\x9b\x34\xd0\x1c\xc8"
      "\xff\x50\xa9\x91\x7a\x6a\xff\x84\x1e\x2a\xf5\x50\x29\xa7\xbd\xef\x6d\xf7"
      "\xb6\x97\xec\x61\xa5\xec\x6e\xb4\xab\xb0\xd2\x1e\xbc\x9a\xb1\x21\x84\x60"
      "\x60\x37\x04\x4b\xf8\xf7\x93\x9e\x66\xde\x3c\xe3\xef\x3d\xac\x79\xcf\x7c"
      "\x80\x5f\x00\x3d\xeb\x5c\x44\xac\x45\xc4\xb1\x88\xb8\x17\x11\xa3\xed\xeb"
      "\x49\xbb\xc4\xcd\x56\xc9\x1e\xf7\xf2\xc5\xa3\xe9\xf5\x17\x8f\xa6\x93\x68"
      "\x36\xef\x7c\x96\xe4\xed\xd9\xb5\xd8\xf2\x35\x99\x13\xed\xe7\x1c\x8a\x88"
      "\x3f\xfe\x2e\xe2\x2f\xc9\x9b\x71\xeb\x2b\xab\xf3\x53\x95\x4a\x79\xa9\x5d"
      "\x2f\x36\xaa\x8b\xc5\xfa\xca\xea\xe5\xb9\xea\xd4\x6c\x79\xb6\xbc\x50\x2a"
      "\x4d\x4e\x4c\x8e\x5f\xbf\x72\xad\x74\x60\x63\x3d\x5b\xfd\xcf\xf3\xdf\xce"
      "\xdd\xfa\xd3\xff\xff\xf7\x93\x67\xef\xaf\xfd\xfa\x6f\x59\xb7\x46\xda\x6d"
      "\x5b\xc7\x71\x90\x5a\x43\x1f\xd8\x8c\x93\xe9\x8f\x88\x5b\xef\x22\x58\x17"
      "\xf4\xb5\xc7\x73\xac\xdb\x1d\xe1\x3b\x49\x23\xe2\x7b\x11\x71\x3e\xbf\xff"
      "\x47\xa3\x2f\x7f\x35\x01\x80\xa3\xac\xd9\x1c\x8d\xe6\xe8\xd6\x3a\x00\x70"
      "\xd4\xa5\x79\x0e\x2c\x49\x0b\xed\x5c\xc0\x48\xa4\x69\xa1\xd0\xca\xe1\x9d"
      "\x89\xe1\xb4\x52\xab\x37\x2e\xdd\xaf\x2d\x2f\xcc\xb4\x72\x65\x63\x31\x90"
      "\xde\x9f\xab\x94\xc7\xdb\xb9\xc2\xb1\x18\x48\xb2\xfa\x44\x7e\xfe\xaa\x5e"
      "\xda\x56\xbf\x12\x11\xa7\x23\xe2\xef\x83\xc7\xf3\x7a\x61\xba\x56\x99\xe9"
      "\xe6\x1b\x1f\x00\xe8\x61\x27\xb6\xad\xff\x5f\x0e\xb6\xd6\x7f\x00\xe0\x88"
      "\x1b\xea\x76\x07\x00\x80\x43\x67\xfd\x07\x80\xde\x63\xfd\x07\x80\xde\x63"
      "\xfd\x07\x80\xde\x63\xfd\x07\x80\xde\x63\xfd\x07\x80\xde\x63\xfd\x07\x80"
      "\x9e\xf2\x87\xdb\xb7\xb3\xd2\x5c\x6f\x7f\xfe\xf5\xcc\x83\x95\xe5\xf9\xda"
      "\x83\xcb\x33\xe5\xfa\x7c\xa1\xba\x3c\x5d\x98\xae\x2d\x2d\x16\x66\x6b\xb5"
      "\xd9\xfc\x33\x7b\xaa\x7b\x3d\x5f\xa5\x56\x5b\x9c\xb8\x1a\xcb\x0f\x8b\x8d"
      "\x72\xbd\x51\xac\xaf\xac\xde\xad\xd6\x96\x17\x1a\x77\xf3\xcf\xf5\xbe\x5b"
      "\x1e\x38\x94\x51\x01\x00\xbb\x39\x7d\xf6\xe9\x87\x49\x44\xac\xdd\x38\x9e"
      "\x97\xd8\xb2\x97\x83\xb5\x1a\x8e\xb6\xb4\xdb\x1d\x00\xba\xa6\xaf\xdb\x1d"
      "\x00\xba\xc6\x6e\x5f\xd0\xbb\xfc\x8c\x0f\xec\xb0\x45\xef\x6b\x3a\xfe\x89"
      "\xd0\x93\x83\xef\x0b\x70\x38\x2e\xfe\x50\xfe\x1f\x7a\x95\xfc\x3f\xf4\x2e"
      "\xf9\x7f\xe8\x5d\xf2\xff\xd0\xbb\x9a\xcd\xc4\x9e\xff\x00\xd0\x63\xe4\xf8"
      "\x01\xbf\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x6f\x6f\x24\x2f\x49\x5a\x68\xef"
      "\x05\x3e\x12\x69\x5a\x28\x44\x9c\x8c\x88\xb1\x18\x48\xee\xcf\x55\xca\xe3"
      "\x11\x71\x2a\x22\x3e\x18\x1c\x18\xcc\xea\x13\xdd\xee\x34\x00\xf0\x96\xd2"
      "\x4f\x92\xf6\xfe\x5f\x17\x47\x2f\x8c\x6c\x6f\x3d\x96\x7c\x35\x98\x1f\x23"
      "\xe2\xaf\xff\xbc\xf3\x8f\x87\x53\x8d\xc6\xd2\x44\x76\xfd\xf3\xcd\xeb\x8d"
      "\x27\xed\xeb\xa5\x6e\xf4\x1f\x00\xd8\xcb\xc6\x3a\xbd\xb1\x8e\x6f\x78\xf9"
      "\xe2\xd1\xf4\x46\x39\xcc\xfe\x3c\xff\x4d\x6b\x73\xd1\x2c\xee\x7a\xbb\xb4"
      "\x5a\xfa\xa3\x3f\x3f\x0e\xc5\x40\x44\x0c\x7f\x91\xb4\xeb\x2d\xd9\xfb\x95"
      "\xbe\x03\x88\xbf\xf6\x38\x22\x7e\xb0\xd3\xf8\x93\x3c\x37\x32\xd6\xde\xf9"
      "\x74\x7b\xfc\x2c\xf6\xc9\x43\x8d\x9f\xbe\x16\x3f\xcd\xdb\x5a\xc7\xec\x7b"
      "\xf1\xfd\x03\xe8\x0b\xf4\x9a\xa7\xd9\xfc\x73\x73\xa7\xfb\x2f\x8d\x73\xf9"
      "\x71\xe7\xfb\x7f\x28\x9f\xa1\xde\xde\xc6\xfc\xb7\xfe\xc6\xfc\x97\x6e\xce"
      "\x7f\x7d\x1d\xe6\xbf\x73\xfb\x8d\x71\xf5\xbd\xdf\x77\x6c\x7b\x1c\xf1\xa3"
      "\xfe\x9d\xe2\x27\x9b\xf1\x93\x0e\xf1\x2f\xec\x33\xfe\x47\x3f\xfe\xe9\xf9"
      "\x4e\x6d\xcd\x7f\x45\x5c\x8c\x9d\xe3\x6f\x8d\x55\x6c\x54\x17\x8b\xf5\x95"
      "\xd5\xcb\x73\xd5\xa9\xd9\xf2\x6c\x79\xa1\x54\x9a\x9c\x98\x1c\xbf\x7e\xe5"
      "\x5a\xa9\x98\xe7\xa8\x8b\x1b\x99\xea\x37\x7d\x7a\xe3\xd2\xa9\xdd\xc6\x3f"
      "\xdc\x21\xfe\xd0\x1e\xe3\xff\xc5\x3e\xc7\xff\xef\xaf\xef\xfd\xf9\x67\xbb"
      "\xc4\xff\xd5\xcf\x77\x7e\xfd\xcf\xec\x12\x3f\x5b\x13\x7f\xb9\xcf\xf8\x53"
      "\xc3\xff\xed\xb8\x7d\x77\x16\x7f\xa6\xc3\xf8\xf7\x7a\xfd\x2f\xed\x33\xfe"
      "\xb3\x8f\x57\x67\xf6\xf9\x50\x00\xe0\x10\xd4\x57\x56\xe7\xa7\x2a\x95\xf2"
      "\x92\x13\x27\x4e\x9c\x6c\x9e\x74\x7b\x66\x02\xde\xb5\x57\x37\x7d\xb7\x7b"
      "\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x74\x72\x18\xff\x4e\xd4"
      "\xed\x31\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x70\x74\x7d\x13\x00\x00\xff\xff\x2c\x8f"
      "\xd9\x41",
      1190));
  NONFAILING(syz_mount_image(/*fs=*/0x2000000004c0, /*dir=*/0x200000000500,
                             /*flags=*/0, /*opts=*/0x200000000240,
                             /*chdir=*/0x21, /*size=*/0x4a6,
                             /*img=*/0x200000000a40));
  //  syz_mount_image$fuse arguments: [
  //    fs: nil
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    opts: nil
  //    chdir: int8 = 0x0 (1 bytes)
  //    size: const = 0x0 (8 bytes)
  //    img: nil
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x2000000016c0, "./bus\000", 6));
  NONFAILING(syz_mount_image(/*fs=*/0, /*dir=*/0x2000000016c0, /*flags=*/0,
                             /*opts=*/0, /*chdir=*/0, /*size=*/0, /*img=*/0));
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 2f 66 69 6c 65 30 00} (length 0xc)
  //    }
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  NONFAILING(memcpy((void*)0x200000000300, "./bus/file0\000", 12));
  syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x200000000300ul,
          /*mode=*/0ul);
  //  chown arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 2f 66 69 6c 65 30 00} (length 0xc)
  //    }
  //    uid: uid (resource)
  //    gid: gid (resource)
  //  ]
  NONFAILING(memcpy((void*)0x200000000180, "./bus/file0\000", 12));
  syscall(__NR_chown, /*file=*/0x200000000180ul, /*uid=*/0xee01,
          /*gid=*/0xee00);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*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=*/0x200001000000ul, /*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;
}