// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <setjmp.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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;
}

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

void loop(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$hfsplus arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 70 6c 75 73 00} (length 0x8)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x4 (8 bytes)
  //    opts: ptr[in, fs_options[hfsplus_options]] {
  //      fs_options[hfsplus_options] {
  //        elems: array[fs_opt_elem[hfsplus_options]] {
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              uid: fs_opt["uid", fmt[hex, uid]] {
  //                name: buffer: {75 69 64} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: uid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nodecompose: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              umask: fs_opt["umask", fmt[oct, int32]] {
  //                name: buffer: {75 6d 61 73 6b} (length 0x5)
  //                eq: const = 0x3d (1 bytes)
  //                val: int32 = 0x1 (23 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              gid: fs_opt["gid", fmt[hex, gid]] {
  //                name: buffer: {67 69 64} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nodecompose: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              gid: fs_opt["gid", fmt[hex, gid]] {
  //                name: buffer: {67 69 64} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nls: fs_opt["nls", stringnoz[codepages_names]] {
  //                name: buffer: {6e 6c 73} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {63 70 31 32 35 31} (length 0x6)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              type: fs_opt["type", array[int8, 4]] {
  //                name: buffer: {74 79 70 65} (length 0x4)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {58 87 f4 52} (length 0x4)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nobarrier: buffer: {6e 6f 62 61 72 72 69 65 72} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0xfc (1 bytes)
  //    size: len = 0x6ea (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x6ea)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000000, "hfsplus\000", 8);
  memcpy((void*)0x200000000100, "./file1\000", 8);
  memcpy((void*)0x2000000002c0, "uid", 3);
  *(uint8_t*)0x2000000002c3 = 0x3d;
  sprintf((char*)0x2000000002c4, "0x%016llx", (long long)0);
  *(uint8_t*)0x2000000002d6 = 0x2c;
  memcpy((void*)0x2000000002d7, "nodecompose", 11);
  *(uint8_t*)0x2000000002e2 = 0x2c;
  memcpy((void*)0x2000000002e3, "umask", 5);
  *(uint8_t*)0x2000000002e8 = 0x3d;
  sprintf((char*)0x2000000002e9, "%023llo", (long long)1);
  *(uint8_t*)0x200000000300 = 0x2c;
  memcpy((void*)0x200000000301, "decompose", 9);
  *(uint8_t*)0x20000000030a = 0x2c;
  memcpy((void*)0x20000000030b, "gid", 3);
  *(uint8_t*)0x20000000030e = 0x3d;
  sprintf((char*)0x20000000030f, "0x%016llx", (long long)0xee00);
  *(uint8_t*)0x200000000321 = 0x2c;
  memcpy((void*)0x200000000322, "nodecompose", 11);
  *(uint8_t*)0x20000000032d = 0x2c;
  memcpy((void*)0x20000000032e, "gid", 3);
  *(uint8_t*)0x200000000331 = 0x3d;
  sprintf((char*)0x200000000332, "0x%016llx", (long long)0);
  *(uint8_t*)0x200000000344 = 0x2c;
  memcpy((void*)0x200000000345, "nls", 3);
  *(uint8_t*)0x200000000348 = 0x3d;
  memcpy((void*)0x200000000349, "cp1251", 6);
  *(uint8_t*)0x20000000034f = 0x2c;
  memcpy((void*)0x200000000350, "type", 4);
  *(uint8_t*)0x200000000354 = 0x3d;
  memcpy((void*)0x200000000355, "\x58\x87\xf4\x52", 4);
  *(uint8_t*)0x200000000359 = 0x2c;
  memcpy((void*)0x20000000035a, "nobarrier", 9);
  *(uint8_t*)0x200000000363 = 0x2c;
  *(uint8_t*)0x200000000364 = 0;
  memcpy(
      (void*)0x200000000f80,
      "\x78\x9c\xec\xdd\xcd\x6f\x1c\x67\x1d\x07\xf0\xef\xec\xae\xdf\x52\xd1\xba"
      "\x6d\xd2\x16\x54\x89\xa8\x11\x05\x11\x91\xf8\x45\x29\x04\x09\x25\x20\x84"
      "\x7c\xa8\x50\x04\x07\x24\x6e\x26\x71\x1a\x2b\x4e\x5a\xd9\x2e\xb8\x11\x02"
      "\xf3\x7e\xed\xa1\x7f\x40\x7b\xc8\x8d\x13\x12\xf7\xa0\x72\x86\x0b\x82\xa3"
      "\xc5\xa9\x12\xa2\x17\x4e\xbe\x2d\x9a\xd9\xd9\xf5\xda\xde\xf5\x4b\x9c\xc4"
      "\x31\x7c\x3e\xd5\xec\x3c\x33\xcf\xfb\x6f\x67\x66\x77\x36\xb5\x26\xc0\xff"
      "\xad\xb9\xf3\x69\x3d\x48\x91\xb9\xf3\x6f\xae\x95\xdb\x1b\xf7\x67\x97\x36"
      "\xee\xcf\x8e\xd5\xd9\x4b\x49\xca\x74\x23\x69\x75\x56\x29\xee\x26\xc5\xc7"
      "\xc9\xd5\x74\x96\x7c\xb6\xdc\x59\x97\x2f\x86\xf5\xf3\xc1\xe2\xe5\xef\xfd"
      "\xfd\x3f\x1b\x9f\x74\xb6\x5a\xf5\x52\x95\x6f\xec\xae\xf7\xf3\x76\x92\x2f"
      "\x1c\x7c\x16\xeb\xf5\x92\xb3\x49\x9a\xf5\x7a\xb7\x91\x1d\xdb\x63\xc9\xf8"
      "\xfe\xed\x5d\x1f\xd0\xde\xf8\xf6\x56\x7a\x06\xcf\xbf\xe8\xe5\x94\x01\x3b"
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      "\xf8\xcc\xa0\xfd\x93\xc9\xa9\xfa\xf3\xae\xfa\x9c\xab\xaf\x0e\x8d\x27\x3b"
      "\xba\x47\xef\x50\x57\x39\x00\x00\x00\x38\x66\x73\xff\x3e\x33\x73\x98\xf2"
      "\x13\xf5\xfa\xb9\xcd\x6c\x66\xed\xc4\xdf\xc6\x03\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\xc0\x13\x55\x24\xcd\xce\xaa\x5a\x1a\xdd\xf4\xd9\x14\xdd\xe7\xff"
      "\x8f\xd6\xfb\x52\xa7\x4f\xb4\x07\xc7\x3d\x00\x00\x00\x00\x00\x00\x00\x00"
      "\xd8\x65\x64\xdb\xd6\x68\x92\xb1\xee\xc6\x95\xc1\x35\x3e\xbf\x99\xcd\xac"
      "\xe5\xd9\xee\x76\xbb\xa8\xfe\xcd\xff\xb5\x6a\xe3\x74\xf5\xfa\x4c\xde\xcd"
      "\x4a\x16\xb2\x9c\x0b\x59\xcb\x7c\x56\xb3\x9a\xe5\x4c\x27\x99\xec\xef\x6c"
      "\x6d\x7e\x75\x75\x79\x7a\x58\xcd\x62\x3d\xa9\x6b\xce\x0c\xac\x39\xb3\x7d"
      "\x5c\xcd\x83\x4d\x78\xfc\x60\xc5\x00\x00\x00\x00\x00\x00\x00\xe0\x7f\xde"
      "\x2f\x33\xb7\xf5\xef\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf0"
      "\x34\x28\x92\x66\x67\x55\x2d\xa7\xbb\xe9\xc9\x34\x5a\x49\xc6\x93\x8c\x96"
      "\xe5\xd6\x93\xbf\x76\xd3\x27\x44\x31\x68\xe7\x83\x27\x3f\x0e\x00\x00\x00"
      "\x38\x92\xf1\x87\xa8\xf3\xdc\x66\x36\xb3\x96\x67\xbb\xdb\xed\xa2\xba\xe7"
      "\x7f\xa9\xba\x5f\x1e\xcf\xbb\xb9\x9b\xd5\x2c\x66\x35\x4b\x59\xc8\x8d\xfa"
      "\x1e\xba\xbc\xeb\x6f\x6c\xdc\x9f\x5d\xda\xb8\x3f\x7b\xa7\x5c\x8e\x3c\xf4"
      "\xaa\xc5\x74\x7e\x7b\x18\xdc\xf3\x2b\x55\x89\x89\xdc\xcc\x62\xb5\xe7\x42"
      "\xae\x57\x83\xb9\x91\x46\x55\xb3\xf4\xcf\x24\x77\xba\x63\xda\x3d\xae\x5f"
      "\x7c\x5a\xb6\x7d\xa5\xe3\x27\x07\x1c\xd9\x8d\x7a\x5d\x76\xf6\x7e\xf7\x57"
      "\x84\xb1\x23\x4f\xf8\x11\x98\x4c\x5a\x8d\x8c\xf4\x22\x32\x55\x8d\xad\x73"
      "\x10\x3c\xdf\x1f\x85\xdd\x91\xf8\xe6\xa7\xc3\x1a\xbd\xda\x59\xb5\x76\xf6"
      "\x94\xfe\x9e\xa6\xd3\xe8\xfd\xf2\x73\xba\xd3\x43\x99\xdc\x37\xe6\x57\x0e"
      "\x38\xb3\x53\xf5\xba\x9c\xcf\x6f\x87\xfd\x72\xf3\xa8\x8d\x6f\x75\xba\x3e"
      "\xb4\x50\x2f\x12\x8d\x54\x91\x98\xe9\x3b\xfa\x5e\xda\x3b\xe6\xc9\x17\xff"
      "\xf8\xfb\xf7\x6f\x2d\xdd\xbd\x7d\xeb\xe6\xca\xf9\x27\x32\xa5\xc7\x69\xe7"
      "\x31\x31\xdb\x17\x89\x97\x0f\x10\x89\x1f\x3c\xb5\x91\x68\xed\x9d\xdd\xd8"
      "\xb9\x63\xaa\xda\x79\xa6\xbb\xf9\xd1\x33\x49\xbe\x9f\xf3\x39\x9b\x6b\x59"
      "\xce\x62\x7e\x9c\xf9\xac\x66\x21\x45\x3d\xd3\xf9\xfa\x78\x2e\x5f\x27\xf7"
      "\x8e\xd4\xd5\x6d\x5b\xd7\x86\x0c\xa0\x67\xb4\x7e\x5f\x9a\x75\xb9\xde\x98"
      "\x32\x97\xef\x0c\x1c\xd3\xd9\x7c\xbb\x4a\xcd\xe7\xb5\xaa\xee\xb3\x59\x4c"
      "\x91\xb7\x73\x23\x0b\x79\xa3\xfa\x6f\x26\xd3\xf9\x6a\x2e\xe5\x52\x2e\xf7"
      "\xbd\xc3\x67\x86\x8e\xbb\x9a\x5b\x75\xd6\x37\x0e\x77\xd6\x9f\xfb\x52\x9d"
      "\x98\x48\xf2\xbb\x7a\x7d\xdc\x3a\x17\x85\x32\xae\xcf\xf7\xc5\xb5\xff\x9a"
      "\x3b\x59\xe5\x6d\xed\x19\xe9\x8b\xd2\x0b\x7b\xbf\xbb\xbb\xaf\x8d\xfb\x4f"
      "\xb9\xf5\xb9\x3a\x51\xf6\xf1\xab\x3d\x8f\x86\x27\x6d\x67\x24\xa6\xfb\x22"
      "\xf1\xe2\xde\x91\xf8\xa8\x5d\xbe\xae\x2c\xdd\xbd\xbd\x7c\x6b\xfe\x9d\x01"
      "\x9f\xae\xed\x62\xa4\x5a\xff\xed\x5c\xd2\x6e\x77\xf6\xbd\x5e\xe7\x95\x47"
      "\xdc\x6f\xf6\xff\xfa\xf3\xa7\xa3\xce\x6f\x1f\x7d\xd7\xb1\xf2\x78\x79\x21"
      "\xe3\xf5\x95\xe4\xf9\x8c\x74\x86\xd6\xec\xe6\xbd\xd8\xbb\xca\x54\xf1\x1a"
      "\xed\xaf\x77\xba\x97\xb7\xfd\x13\x77\x34\xe3\xe5\xf9\xdc\xe8\xf4\xd4\x39"
      "\x53\xbf\x3b\xf4\x4c\x1d\xad\xbf\xc3\xed\x6e\x69\xa6\xca\x7b\x79\x60\xde"
      "\x6c\x95\xf7\x4a\x5f\x5e\xff\xf7\xad\xe4\xed\x2c\xf5\xbe\x0f\x01\xf0\x14"
      "\x3b\xf5\xe5\x53\xa3\x13\xff\x9a\xf8\xcb\xc4\x87\x13\xbf\x9e\xb8\x35\xf1"
      "\xe6\xf8\xb7\xc6\xbe\x36\xf6\xea\x68\x46\xfe\x3c\xf2\xf5\xd6\x54\xf3\xf5"
      "\xc6\xab\xc5\x1f\xf2\x61\x7e\xb6\x75\xff\x0f\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3c\xbc"
      "\x95\xf7\xee\xdd\x9e\x5f\x5a\x5a\x58\x1e\x9c\x68\x34\x87\x66\x0d\x49\xa4"
      "\x7d\xef\xf6\x7c\xf7\x49\x3e\x07\xad\x95\x95\xa2\x7e\x92\xce\xa1\xfa\x1a"
      "\x9a\x68\x1c\xad\xfa\x7e\x89\xde\x23\x7f\x1e\x5f\x17\xc7\x9f\x28\x76\xed"
      "\x29\x67\xfc\x68\xba\xe8\x3e\xf9\xe8\x70\xb5\xa6\x76\x1f\x51\x57\x8f\x33"
      "\x50\xff\x38\x6c\xad\x8c\xf7\x4d\xb9\x39\xb4\xf0\xa9\x3a\xd1\x7e\xae\x13"
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      "\xdf\xa2\x87\x79\xb8\x28\x70\x22\x5c\x5c\xbd\xf3\xce\xc5\x95\xf7\xee\x7d"
      "\x65\xf1\xce\xfc\x5b\x0b\x6f\x2d\xdc\x1d\xb9\x74\xe9\xf2\xd4\xe5\x4b\x6f"
      "\xcc\x5e\xbc\xb9\xb8\xb4\x30\xd5\x79\x3d\xee\x51\x02\x8f\xc3\xd6\xf7\x76"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\xa4\x38\xe0\xdf\x15\x5c\xfb\xe1"
      "\x8f\xaa\xff\x43\xf0\xa1\xfe\x5e\xe2\xb8\xe7\x08\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9c\x6c\x73"
      "\xe7\xd3\x7a\x90\x22\xd3\x53\x17\xa6\xca\xed\x8d\xfb\xb3\x4b\xe5\xd2\x4d"
      "\x6f\x95\x6c\x25\x69\x34\x92\xe2\xa7\x49\xf1\x71\x72\x35\x9d\x25\x93\x7d"
      "\xcd\x15\xc3\xfa\xf9\x60\xf1\x72\x33\xc9\x27\x5b\x6d\xb5\xba\xe5\x1b\x7b"
      "\xd4\x6b\x8f\x1d\x68\x16\xeb\xf5\x92\xb3\x49\x9a\xf5\xfa\x08\xb6\xb5\x77"
      "\xfd\xc8\xed\x15\xbd\x19\x96\x01\x3b\xd7\x0d\x1c\x1c\xb7\xff\x06\x00\x00"
      "\xff\xff\xa2\x46\xe9\x45",
      1770);
  syz_mount_image(/*fs=*/0x200000000000, /*dir=*/0x200000000100,
                  /*flags=MS_NODEV*/ 4, /*opts=*/0x2000000002c0, /*chdir=*/0xfc,
                  /*size=*/0x6ea, /*img=*/0x200000000f80);
}
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;
  do_sandbox_none();
  return 0;
}