// https://syzkaller.appspot.com/bug?id=a8f4b5fec94d9229d3fd8cfb5a2db8b9ad0dec8c
// 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);
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  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 30 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x1208002 (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 {
  //              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 {
  //              delalloc: buffer: {64 65 6c 61 6c 6c 6f 63} (length 0x8)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              resuid: fs_opt["resuid", fmt[hex, uid]] {
  //                name: buffer: {72 65 73 75 69 64} (length 0x6)
  //                eq: const = 0x3d (1 bytes)
  //                val: uid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              debug: buffer: {64 65 62 75 67} (length 0x5)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              dioread_nolock: buffer: {64 69 6f 72 65 61 64 5f 6e 6f 6c 6f
  //              63 6b} (length 0xe)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              bsddf: buffer: {62 73 64 64 66} (length 0x5)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              nomblk_io_submit: buffer: {6e 6f 6d 62 6c 6b 5f 69 6f 5f 73 75
  //              62 6d 69 74} (length 0x10)
  //            }
  //            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)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x5d8 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x5d8)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000580, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000001480, "./file0\000", 8));
  NONFAILING(memcpy((void*)0x200000000100, "grpquota", 8));
  NONFAILING(*(uint8_t*)0x200000000108 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000109, "delalloc", 8));
  NONFAILING(*(uint8_t*)0x200000000111 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000112, "resuid", 6));
  NONFAILING(*(uint8_t*)0x200000000118 = 0x3d);
  NONFAILING(sprintf((char*)0x200000000119, "0x%016llx", (long long)0));
  NONFAILING(*(uint8_t*)0x20000000012b = 0x2c);
  NONFAILING(memcpy((void*)0x20000000012c, "debug", 5));
  NONFAILING(*(uint8_t*)0x200000000131 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000132, "dioread_nolock", 14));
  NONFAILING(*(uint8_t*)0x200000000140 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000141, "bsddf", 5));
  NONFAILING(*(uint8_t*)0x200000000146 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000147, "nomblk_io_submit", 16));
  NONFAILING(*(uint8_t*)0x200000000157 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000158, "noauto_da_alloc", 15));
  NONFAILING(*(uint8_t*)0x200000000167 = 0x2c);
  NONFAILING(*(uint8_t*)0x200000000168 = 0);
  NONFAILING(memcpy(
      (void*)0x2000000005c0,
      "\x78\x9c\xec\xdd\xcf\x6f\x14\x55\x1c\x00\xf0\xef\x6c\x7f\xd0\x52\xb4\x85"
      "\x18\x15\x0f\xd2\xc4\x18\x48\x94\x96\x16\x30\xc4\x78\x80\xab\x21\x0d\xfe"
      "\x88\x17\x2f\x56\x5a\x10\x29\xd0\xd0\x1a\x2d\x9a\x50\x12\xbc\x98\x18\x2f"
      "\xc6\x98\x78\xf2\x20\xfe\x17\x4a\xe4\xca\x49\x4f\x1e\xbc\x78\x32\x24\x44"
      "\x0d\x47\x13\xd7\xcc\x76\xa6\x74\xdb\xd9\x96\x2e\x6d\xa7\x32\x9f\x4f\xb2"
      "\xf4\xcd\x7b\x3b\xbc\x37\xdd\x7e\xfb\xde\xbe\xbe\x37\x1b\x40\x65\x0d\xa6"
      "\xff\xd4\x22\xf6\x46\xc4\x74\x12\xd1\x9f\xcc\x2f\x96\x75\x46\x56\x38\xb8"
      "\xf0\xbc\x7b\x7f\x7f\x72\x3a\x7d\x24\x51\xaf\xbf\xf1\x67\x12\x49\x96\x97"
      "\x3f\x3f\xc9\xbe\xf6\x65\x27\xf7\x44\xc4\xcf\x3f\x25\xb1\xa7\x63\x65\xbd"
      "\x33\x73\x57\xce\x8f\x4f\x4d\x4d\x5e\xce\x8e\x87\x67\x2f\x4c\x0f\xcf\xcc"
      "\x5d\x39\x78\xee\xc2\xf8\xd9\xc9\xb3\x93\x17\x47\x5f\x1a\x3d\x76\xf4\xc8"
      "\xd1\x63\x23\x87\xda\xba\xae\xab\x05\x79\x27\xaf\xbf\xff\x61\xff\x67\x63"
      "\x6f\x7f\xf7\xcd\x3f\xc9\xc8\xf7\xbf\x8d\x25\x71\x3c\x5e\xcd\x9e\xb8\xf4"
      "\x3a\x36\xca\x60\x0c\x36\xbe\x27\xc9\xca\xa2\xbe\x63\x1b\x5d\x59\x49\x3a"
      "\xb2\x9f\x93\xa5\x2f\x71\xd2\x59\x62\x83\x58\x97\xfc\xf5\xeb\x8a\x88\xa7"
      "\xa2\x3f\x3a\xe2\xfe\x8b\xd7\x1f\x9f\xbe\x56\x6a\xe3\x80\x4d\x55\x4f\x22"
      "\xea\x40\x45\x25\xe2\x1f\x2a\x2a\x1f\x07\xe4\xef\xed\x97\xbf\x0f\xae\x95"
      "\x32\x2a\x01\xb6\xc2\xdd\x13\x0b\x13\x00\x2b\xe3\xbf\x73\x61\x6e\x30\x7a"
      "\x1a\x73\x03\x3b\xef\x25\xb1\x74\x5a\x27\x89\x88\xf6\x66\xe6\x9a\xed\x8a"
      "\x88\xdb\xb7\xc6\xae\x9f\xb9\x35\x76\x3d\x36\x69\x1e\x0e\x28\x36\x7f\x2d"
      "\x22\x9e\x2e\x8a\xff\xa4\x11\xff\x03\xd1\x13\x03\x8d\xf8\xaf\x35\xc5\x7f"
      "\x3a\x2e\x38\x95\x7d\x4d\xf3\x5f\x6f\xb3\xfe\xe5\x53\xc5\xe2\x1f\xb6\xce"
      "\x42\xfc\xf7\xac\x1a\xff\xd1\x22\xfe\xdf\x59\x12\xff\xef\xb6\x59\xff\xe0"
      "\xfd\xe4\x7b\xbd\x4d\xf1\xdf\xdb\xee\x25\x01\x00\x00\x00\x00\x00\x40\x65"
      "\xdd\x3c\x11\x11\x2f\x16\xfd\xfd\xbf\xb6\xb8\xfe\x27\x0a\xd6\xff\xf4\x45"
      "\xc4\xf1\x0d\xa8\x7f\x70\xd9\xf1\xca\xbf\xff\xd7\xee\x6c\x40\x35\x40\x81"
      "\xbb\x27\x22\x5e\x29\x5c\xff\x5b\xcb\x57\xff\x0e\x74\x64\xa9\xc7\x1a\xeb"
      "\x01\xba\x92\x33\xe7\xa6\x26\x0f\x45\xc4\xe3\x11\x71\x20\xba\x76\xa4\xc7"
      "\x23\xab\xd4\x71\xf0\xf3\x3d\x5f\xb7\x2a\x1b\xcc\xd6\xff\xe5\x8f\xb4\xfe"
      "\xdb\xd9\x5a\xc0\xac\x1d\x77\x3a\x77\x34\x9f\x33\x31\x3e\x3b\xfe\xb0\xd7"
      "\x0d\x44\xdc\xbd\x16\xf1\x4c\xe1\xfa\xdf\x64\xb1\xff\x4f\x0a\xfa\xff\xf4"
      "\xf7\xc1\xf4\x03\xd6\xb1\xe7\xf9\x1b\xa7\x5a\x95\xad\x1d\xff\xc0\x66\xa9"
      "\x7f\x1b\xb1\xbf\xb0\xff\xbf\x7f\xd7\x8a\x64\xf5\xfb\x73\x0c\x37\xc6\x03"
      "\xc3\xf9\xa8\x60\xa5\x67\x3f\xfe\xe2\x87\x56\xf5\xb7\x1b\xff\x6e\x31\x01"
      "\x0f\x2f\xed\xff\x77\xae\x1e\xff\x03\xc9\xd2\xfb\xf5\xcc\xac\xbf\x8e\xc3"
      "\x73\x9d\xf5\x56\x65\xed\x8e\xff\xbb\x93\x37\x1b\xb7\x9c\xe9\xce\xf2\x3e"
      "\x1a\x9f\x9d\xbd\x3c\x12\xd1\x9d\x9c\xec\x48\x73\x9b\xf2\x47\xd7\xdf\x66"
      "\x78\x14\xe5\xf1\x90\xc7\x4b\x1a\xff\x07\x9e\x5b\x7d\xfe\xaf\x68\xfc\xdf"
      "\x1b\x11\xf3\xcb\xfe\xef\xe4\xaf\xe6\x3d\xc5\xb9\x27\xff\xed\xfb\xbd\x55"
      "\x7b\x8c\xff\xa1\x3c\x69\xfc\x4f\xac\xab\xff\x5f\x7f\x62\xf4\xc6\xc0\x8f"
      "\xad\xea\x7f\xb0\xfe\xff\x48\xa3\xaf\x3f\x90\xe5\x98\xff\x83\x05\x5f\xe5"
      "\x61\xda\xdd\x9c\x5f\x10\x8e\x9d\x45\x45\x5b\xdd\x5e\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x78\x14\xd4\x22\x62\x57\x24\xb5\xa1\xc5\x74\xad\x36\x34\x14\xd1"
      "\x17\x11\x4f\xc4\xce\xda\xd4\xa5\x99\xd9\x17\xce\x5c\xfa\xe0\xe2\x44\x5a"
      "\xd6\xf8\xfc\xff\x5a\xfe\x49\xbf\xfd\x0b\xc7\x49\xfe\xf9\xff\x03\x4b\x8e"
      "\x47\x97\x1d\x1f\x8e\x88\xdd\x11\xf1\x65\x47\x6f\xe3\x78\xe8\xf4\xa5\xa9"
      "\x89\xb2\x2f\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\xb6\x89\xbe\x16\xfb\xff\x53\x7f\x74\x94\xdd\x3a\x60\xd3\x75\x96\xdd"
      "\x00\xa0\x34\x05\xf1\xff\x4b\x19\xed\x00\xb6\x9e\xfe\x1f\xaa\x4b\xfc\x43"
      "\x75\x89\x7f\xa8\x2e\xf1\x0f\xd5\x25\xfe\xa1\xba\xc4\x3f\x54\x97\xf8\x87"
      "\xea\x12\xff\x00\x00\x00\x00\x00\xf0\x48\xd9\xbd\xef\xe6\xaf\x49\x44\xcc"
      "\xbf\xdc\xdb\x78\xa4\xba\xb3\xb2\xae\x52\x5b\x06\x6c\xb6\x5a\xd9\x0d\x00"
      "\x4a\xe3\x16\x3f\x50\x5d\x96\xfe\x40\x75\x79\x8f\x0f\x24\x6b\x94\xf7\xb4"
      "\x3c\x69\xad\x33\x57\x33\x7d\xfa\x21\x4e\x06\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x80\xca\xd9\xbf\xd7\xfe\x7f\xa8\x2a\xfb\xff\xa1\xba\xec\xff\x87"
      "\xea\xca\xf7\xff\xef\x2b\xb9\x1d\xc0\xd6\xf3\x1e\x1f\x88\x35\x76\xf2\x17"
      "\xee\xff\x5f\xf3\x2c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x60\x23\xcd"
      "\xcc\x5d\x39\x3f\x3e\x35\x35\x79\x59\xe2\xad\xed\xd1\x8c\xad\x4c\xd4\xeb"
      "\xf5\xab\xe9\x4f\xc1\x76\x69\xcf\xff\x3c\x91\x2f\x85\xdf\x2e\xed\x59\x96"
      "\xc8\xf7\xfa\x3d\xd8\x59\xe5\xfd\x4e\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\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9a\xfd\x17\x00\x00\xff\xff\x16\x12"
      "\x24\xc5",
      1496));
  NONFAILING(syz_mount_image(
      /*fs=*/0x200000000580, /*dir=*/0x200000001480,
      /*flags=MS_STRICTATIME|MS_SILENT|MS_RELATIME|MS_NOSUID*/ 0x1208002,
      /*opts=*/0x200000000100, /*chdir=*/1, /*size=*/0x5d8,
      /*img=*/0x2000000005c0));
  //  lchown arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    uid: uid (resource)
  //    gid: gid (resource)
  //  ]
  NONFAILING(memcpy((void*)0x2000000006c0, "./file0\000", 8));
  syscall(__NR_lchown, /*file=*/0x2000000006c0ul, /*uid=*/0, /*gid=*/0xee01);
  //  quotactl$Q_QUOTAON arguments: [
  //    cmd: quota_cmd_quota_on = 0xffffffff80000201 (8 bytes)
  //    special: ptr[in, blockdev_filename] {
  //      union blockdev_filename {
  //        loop: loop_filename {
  //          prefix: buffer: {2f 64 65 76 2f 6c 6f 6f 70} (length 0x9)
  //          id: proc = 0x0 (1 bytes)
  //          z: const = 0x0 (1 bytes)
  //        }
  //      }
  //    }
  //    id: uid (resource)
  //    addr: nil
  //  ]
  NONFAILING(memcpy((void*)0x200000000180, "/dev/loop", 9));
  NONFAILING(*(uint8_t*)0x200000000189 = 0x30);
  NONFAILING(*(uint8_t*)0x20000000018a = 0);
  syscall(__NR_quotactl, /*cmd=Q_QUOTAON_GRP*/ 0xffffffff80000201ul,
          /*special=*/0x200000000180ul, /*id=*/0, /*addr=*/0ul);
  //  mprotect arguments: [
  //    addr: VMA[0x3000]
  //    len: len = 0x3000 (8 bytes)
  //    prot: mmap_prot = 0x9 (8 bytes)
  //  ]
  syscall(__NR_mprotect, /*addr=*/0x200000000000ul, /*len=*/0x3000ul,
          /*prot=PROT_SEM|PROT_READ*/ 9ul);
  //  openat$cgroup_ro arguments: [
  //    fd: fd_cgroup (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {68 75 67 65 74 6c 62 2e 31 47 42 2e 75 73 61 67 65 5f 69 6e
  //      5f 62 79 74 65 73 00} (length 0x1b)
  //    }
  //    flags: const = 0x275a (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd
  NONFAILING(
      memcpy((void*)0x200000000180, "hugetlb.1GB.usage_in_bytes\000", 27));
  res = syscall(__NR_openat, /*fd=*/(intptr_t)-1, /*file=*/0x200000000180ul,
                /*flags=*/0x275a, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  mmap arguments: [
  //    addr: VMA[0xb36000]
  //    len: len = 0xb36000 (8 bytes)
  //    prot: mmap_prot = 0xa (8 bytes)
  //    flags: mmap_flags = 0x28011 (8 bytes)
  //    fd: fd (resource)
  //    offset: intptr = 0x0 (8 bytes)
  //  ]
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0xb36000ul,
          /*prot=PROT_SEM|PROT_WRITE*/ 0xaul,
          /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
          /*fd=*/r[0], /*offset=*/0ul);
  //  syz_mount_image$exfat arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 66 61 74 00} (length 0x6)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 32 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x3000cd0 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x151a (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x151a)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000240, "exfat\000", 6));
  NONFAILING(memcpy((void*)0x2000000005c0, "./file2\000", 8));
  NONFAILING(memcpy(
      (void*)0x200000003f40,
      "\x78\x9c\xec\xdc\x0b\xb8\x4e\xd5\xd6\x38\xf0\x31\xe6\x9c\x8b\x4d\x2e\x6f"
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      "\x48\x92\x24\x49\x12\x9b\xdc\x92\x90\x84\x5c\x77\x92\x7b\xc8\x3d\xed\xb4"
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      "\x4e\x3d\x9d\xce\xd7\xf7\x39\xdf\xb7\xc7\xef\x79\xd6\x63\x0e\x6b\x8d\xf1"
      "\x8e\xb5\xc7\x7e\xf7\xbb\xd6\x7a\x9e\xbd\xbf\xed\x34\xb8\x4a\xfd\xaa\x95"
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      "\xec\x36\xbb\x2d\x6e\x8b\xdb\xe6\xb6\xb9\x1d\x6e\x87\xdb\xe5\x76\xb9\xdd"
      "\x6e\xb7\xdb\xe3\xf6\xb8\x54\x97\xea\xf6\xba\xbd\x6e\x9f\xdb\xe7\xf6\xbb"
      "\xaf\xdc\x01\xf7\xb5\x3b\xe8\xbe\x71\x87\xdc\xb7\xee\xb0\xfb\xce\x1d\x71"
      "\xdf\xbb\xa3\xee\x98\x3b\xee\xbc\x3e\xe1\x7e\x74\x27\xdd\x29\x77\xda\x9d"
      "\x71\x67\xdd\x4f\xee\x9c\x3b\xef\x2e\x38\xef\x92\x62\x6f\xc7\xc6\xc7\xde"
      "\x89\x4d\x88\xbd\x1b\x9b\x18\x9b\x14\x9b\x1c\x9b\x12\x9b\x1a\x9b\x16\x9b"
      "\x1e\x7b\x2f\x36\x23\x36\x33\x36\x2b\xf6\x7e\x6c\x76\x6c\x4e\x6c\x6e\x6c"
      "\x5e\x6c\x7e\x6c\x41\x6c\x61\xec\x83\xd8\xa2\xd8\x87\xb1\xe4\xd8\x47\xb1"
      "\xc5\xb1\x8f\x63\x29\xb1\x25\xb1\xa5\xb1\x65\xb1\xe5\xb1\x15\x31\xef\xf3"
      "\x6f\x89\x7c\x41\x5f\xc8\xc7\xfd\x75\xbe\xb0\xbf\xde\x17\xf1\x45\x7d\x31"
      "\x5f\xdc\x3b\x5f\xc2\x97\xf4\x37\xf8\x52\xfe\x46\x5f\xda\xdf\xe4\xcb\xf8"
      "\x9b\x7d\x59\x7f\x8b\x2f\xe7\xcb\xfb\x0a\xbe\xa1\x6f\xe4\x1b\xfb\x26\xbe"
      "\xa9\x6f\xe6\x1f\xf5\xcd\xfd\x63\xbe\x85\x6f\xe9\x5b\xf9\xc7\x7d\x6b\xff"
      "\x84\x6f\xe3\x9f\xf4\x6d\xfd\x53\xbe\x9d\x7f\xda\xb7\xf7\xcf\xf8\x0e\xfe"
      "\x59\xdf\xd1\x3f\xe7\x3b\xf9\xe7\xe7\x5c\x9a\xb2\xef\xea\x5f\xf2\xdd\x7c"
      "\x77\x9f\xe8\x7b\xf8\x9e\xfe\x65\xdf\xcb\xf7\xf6\x7d\x7c\x5f\xdf\x0f\x5f"
      "\xf1\xfd\xfd\xab\x7e\x80\x7f\xcd\x0f\xf4\x83\xfc\x60\xff\xba\x1f\xe2\xdf"
      "\xf0\x43\xfd\x9b\x7e\x98\x1f\xee\x47\xf8\xb7\xfc\x48\x3f\xca\x8f\xf6\x63"
      "\xfc\x58\x3f\xce\x27\xf9\xb7\xfd\x78\xff\x8e\x9f\xe0\xdf\xf5\x13\xfd\x24"
      "\x3f\xd9\x4f\xf1\x53\xfd\x34\x3f\xdd\xbf\xe7\x67\xf8\x99\x7e\x96\x7f\xdf"
      "\xcf\xf6\x73\xfc\x5c\x3f\xcf\xcf\xf7\x0b\xfc\x42\xff\x81\x5f\xe4\x3f\xf4"
      "\xc9\xfe\x23\xbf\xd8\x7f\xec\x53\xfc\x12\xbf\xd4\x2f\xf3\xcb\xfd\x0a\xbf"
      "\xd2\xaf\xf2\xab\xfd\x1a\xbf\xd6\xaf\xf3\xeb\xfd\x06\xbf\xd1\x6f\xf2\x9b"
      "\xfd\x27\x7e\x8b\xdf\xea\xb7\xf9\xed\x7e\x87\xdf\xe9\x77\xf9\x4f\xfd\x6e"
      "\xff\x99\xdf\xe3\x3f\xf7\xa9\xfe\x0b\xbf\xd7\xff\xcd\xef\xf3\x5f\xfa\xfd"
      "\xfe\x2b\x7f\xc0\x7f\xed\x0f\xfa\x6f\xfc\x21\xff\xad\x3f\xec\xbf\xf3\x47"
      "\xfc\xf7\xfe\xa8\x3f\xe6\x8f\xfb\x1f\xfc\x09\xff\xa3\x3f\xe9\x4f\xf9\xd3"
      "\xfe\x8c\x3f\xeb\x7f\xf2\xe7\xfc\x79\x7f\x41\x7e\x67\x4d\x08\x21\x84\x10"
      "\xe2\x5f\xa2\xff\x60\x7f\x8f\xdf\xf8\x3f\x75\x69\x4b\xd3\x13\x00\xb2\x6e"
      "\xcd\x7b\xe0\x1f\x6b\xae\xcf\xf5\xf3\xba\xb7\xda\xdd\x2e\x06\x00\x4f\x75"
      "\xef\x54\xf7\xd2\x96\x01\xea\x26\x26\x26\x5e\x3a\x36\x45\x43\x50\x68\x1e"
      "\x00\xc4\x2e\xe7\x67\x80\xcb\xf1\x12\x68\x05\x4f\x40\x5b\x68\x09\xa5\x7e"
      "\xb3\xbf\xde\xaa\xc2\xc5\xeb\xbe\xbf\xab\x5f\xb7\xee\x3f\xd4\x8f\xdf\x0c"
      "\x90\x19\x20\xd3\x2f\x39\x69\xb7\x47\xbf\xc4\x97\xeb\xdf\xf8\x3b\xf5\x1b"
      "\x7e\xc0\xbf\x5b\x7f\x09\xa4\x68\x84\xf8\x3c\x80\x22\x85\x2e\xe7\xa4\x15"
      "\xfe\x25\xbe\x5c\xbf\xf4\xef\xd4\xdf\xd9\xfa\xf7\xeb\x5f\xec\x3f\xd3\x97"
      "\x49\x00\x2d\xfe\x2e\x27\x0b\x5c\x8e\x2f\xd7\x2f\x09\x8f\xc1\xd3\xd0\xf6"
      "\x57\x47\x0a\x21\x84\x10\x42\x08\x21\x84\x10\x3f\xeb\xad\xce\x76\xfe\x83"
      "\xfb\xcf\x8b\xf7\xe7\xf9\xcc\xaf\xf3\x7e\x89\xff\xe8\xfe\xfc\x0f\x54\xfa"
      "\xaf\xf6\x2f\x84\x10\x42\x08\x21\x84\x10\x42\x88\x3f\xf6\xec\x0b\x5d\x9e"
      "\x7c\xb4\x6d\xdb\x96\x1d\xfe\x2f\x2f\x32\xfe\x67\xb4\xf1\x1f\xb0\x40\x00"
      "\xf8\xf3\x59\x59\x2f\x7d\xb3\xfc\xa7\x9c\x85\x2c\xfe\x07\x16\x57\xf8\x07"
      "\x93\x10\x42\x08\x21\x84\x10\xe2\x2f\x77\xf9\xa2\xff\x4a\x77\x22\x84\x10"
      "\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21"
      "\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42"
      "\xa4\x5f\xff\xfe\x5f\x08\x53\xff\xf2\xc1\x57\xfa\x1c\x85\x10\x42\x08\x21"
      "\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42"
      "\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84"
      "\x10\x42\x08\x21\x84\x10\x42\x88\x2b\xed\xff\x05\x00\x00\xff\xff\x11\x3a"
      "\x4f\xfd",
      5402));
  NONFAILING(syz_mount_image(
      /*fs=*/0x200000000240, /*dir=*/0x2000000005c0,
      /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_STRICTATIME|MS_NODIRATIME|MS_NOATIME|0xc0*/
      0x3000cd0, /*opts=*/0x200000000440, /*chdir=*/1, /*size=*/0x151a,
      /*img=*/0x200000003f40));
  //  chown arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    uid: uid (resource)
  //    gid: gid (resource)
  //  ]
  NONFAILING(memcpy((void*)0x200000000140, "./file0\000", 8));
  syscall(__NR_chown, /*file=*/0x200000000140ul, /*uid=*/0, /*gid=*/0);
}
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;
}