// 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);
}

uint64_t r[1] = {0xffffffffffffffff};

void loop(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$nilfs2 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {6e 69 6c 66 73 32 00} (length 0x7)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 32 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x880 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYRES8: ANYRES8 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRESOCT: ANYRES64 (resource)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0xfe (1 bytes)
  //    size: len = 0xadc (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0xadc)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000180, "nilfs2\000", 7);
  memcpy((void*)0x200000000300, "./file2\000", 8);
  *(uint8_t*)0x2000000001c0 = 0;
  sprintf((char*)0x2000000001c1, "%023llo", (long long)0);
  memcpy(
      (void*)0x200000001900,
      "\x78\x9c\xec\xdd\x5d\x88\x5c\x57\x01\x00\xe0\x73\x77\x77\x36\xbb\x69\x6b"
      "\xa6\x35\xb5\x6b\x1a\xdb\xa4\xd5\xb6\xfe\x74\xd3\x6c\xd6\xf8\x13\x34\x29"
      "\x09\x82\xa1\x29\xe2\x4b\xa1\xf8\x12\xd2\xb4\x06\x63\x04\x2b\xa8\xa5\xd0"
      "\x24\x4f\xbe\xd9\x52\x52\xf0\xc9\x1f\x7c\xea\x4b\xa9\x22\x58\x10\x09\x7d"
      "\xf2\xa5\x60\x03\x45\xe8\x53\x15\xf4\xa1\x21\x62\xc1\x87\x1a\x4d\x46\xb2"
      "\x73\xce\xcc\x9d\x93\x99\xcc\xcc\x66\x77\xee\xce\xee\xf7\xc1\xdd\x33\xe7"
      "\x9e\x73\xe7\x9c\x3b\x7b\xe7\xce\xfd\x3b\xe7\x04\x60\xc3\x9a\x58\xfa\xbb"
      "\xb8\x38\x57\x84\x70\xee\x8d\x97\x0f\xbd\xff\xc0\x3f\x66\xaf\xcd\xd9\xdf"
      "\xca\x51\x5f\xfa\x3b\x55\x8a\xd5\x42\x08\x45\x8c\x4f\x65\xef\xf7\xde\x64"
      "\x33\xbc\xf2\xc1\xf3\xc7\xba\x85\x45\x58\x58\xfa\x9b\xe2\xe1\xf1\x4b\xad"
      "\x65\x6f\x09\x21\x9c\x0e\x3b\xc2\xf9\x50\x0f\xdb\xce\x5d\x78\xe9\xad\x85"
      "\xc7\x8e\x9c\x39\x7c\x76\xe7\xdb\xaf\xee\xbb\xb8\x3a\x6b\x0f\x00\x00\x1b"
      "\xcb\x37\xce\xef\x5b\xbc\xf3\xaf\x7f\xbe\xfb\xf6\xcb\xaf\xdd\x73\x20\x6c"
      "\x6a\xcd\x4f\xc7\xe7\xf5\x34\x63\xa6\x79\xdc\x7f\x20\x1e\xf8\xa7\xe3\xff"
      "\x89\xd0\x19\x2f\x4a\x53\xd9\x74\x96\x6f\x2a\x4e\x13\xb3\x9d\xf9\x26\xbb"
      "\xe4\x2b\x97\x53\xcb\xf2\x4d\xf5\x28\x7f\x3a\x2b\xbf\xd6\x23\xdf\xa6\x70"
      "\xe3\xf2\x27\x4b\xf3\xba\xad\x37\x8c\xb3\xb4\x1d\xd7\x43\x31\x31\x1f\x42"
      "\xd8\xdc\x8a\x4f\x4c\xcc\xcf\x37\xcf\xc9\xc3\xd2\x79\xfd\x74\x31\x7f\xea"
      "\xc4\xc9\xa7\x9f\xad\xa8\xa2\xc0\x8a\xfb\xf7\xbd\x21\x84\x1d\xa5\xe9\xe0"
      "\xd9\xce\xf8\x5a\x9b\xf6\xaf\x81\x3a\x2c\x73\x6a\xac\x81\x3a\x8c\xe5\x74"
      "\x60\x74\x65\x5d\x6e\x34\x55\xbe\xce\x23\x9a\x1a\x5b\xaa\xde\x03\x01\x34"
      "\xe5\xf7\x0b\xaf\x73\x3a\xbf\xb2\x70\x73\x5a\xef\x36\x35\x58\xf9\x97\x1e"
      "\x9d\xe8\xbe\x3c\xac\x80\x51\x6f\xff\x43\x95\x3f\x5d\x71\xf9\x41\xf9\xbf"
      "\x3e\x63\x8f\xc3\xca\x59\xaf\x5b\x53\x5a\xaf\xf4\x3d\xba\x35\xc6\xf3\xfb"
      "\x08\xf9\xf3\x4b\xaf\xfc\xa1\x73\xb9\xb6\xfc\x4e\x47\xe7\xdc\xfc\x7e\x44"
      "\x6d\xc0\x7a\xf6\xba\x8f\x30\x2e\xf7\x17\x7a\xd5\x73\x72\xc4\xf5\x58\xae"
      "\x5e\xf5\xcf\xb7\x8b\xf5\xea\x2b\x31\x4c\x9f\xc3\x57\x3b\x52\xef\xed\xf8"
      "\xfe\xe4\xff\xd3\x71\xf9\x1f\x03\xdd\x7d\x98\x5f\xff\x37\x99\x4c\x6b\x7b"
      "\x0a\x1d\xf1\xda\xcd\xbc\x57\xa3\xe2\xfd\x0f\xb0\x76\xe5\xcf\xcd\x35\xd2"
      "\xfd\xd1\x28\x7f\xae\x2f\x4f\xdf\xd4\x27\x7d\xa6\x4f\xfa\x6c\x9f\xf4\xcd"
      "\x7d\xd2\x6f\xe9\x93\x0e\x1b\xd9\x6f\x7f\xf0\xd3\xf0\x62\xd1\xbe\xde\x95"
      "\x9f\xd3\x0f\x7b\x3d\x3c\x5d\x67\xbb\x2d\x86\x1f\x19\xb2\x3e\xf9\xf5\xc8"
      "\x61\xcb\xcf\x9f\xfb\x1d\xd6\xcd\x96\x9f\x3f\x4f\x0c\x6b\xd9\xef\x8f\x3e"
      "\x71\xfc\x8b\x4f\x3d\x79\xa1\xf9\xfc\x7f\xd1\xda\xfe\xaf\xc6\xed\x3d\x9d"
      "\x6e\xd4\xe3\x77\xeb\x7c\xcc\x90\xae\x17\xe6\xd7\xd5\x5b\xcf\xfe\xd7\x3b"
      "\xcb\x99\xe8\x91\xef\x8e\xac\x3e\xb7\x75\xc9\xbf\xf4\x7a\x6b\x67\xbe\x62"
      "\x6b\xfb\x7d\x42\x69\x3f\x73\x5d\x3d\xe6\x3a\x97\xdb\xd2\x2b\xdf\xf6\xce"
      "\x7c\xf5\x2c\xdf\x6c\x9c\x66\xb2\xfa\xe6\xc7\x27\x9b\xb3\xe5\xd2\xf1\x47"
      "\xda\xaf\xa6\xcf\x6b\x2a\x5b\xdf\x5a\xb6\x1e\xd3\x59\x3d\xd2\x7e\xe5\xf6"
      "\x18\xe6\xf5\x80\xe5\x48\xdb\x63\x7a\xfe\xbf\xdd\x1e\xa0\xf9\xfc\x7f\xda"
      "\x3e\xe7\x42\xad\x78\xfa\xc4\xc9\xe3\x8f\xc4\x78\xda\x4e\xff\x34\x59\xdb"
      "\x74\x6d\xfe\xee\x11\xd7\x1b\x58\x39\xbd\xbe\xff\xe9\xf7\x6b\x2e\x74\xb6"
      "\xff\xb9\xb5\x35\xbf\x36\x51\xde\x2f\x6c\x69\xcf\x2f\x9a\xfb\x85\xd7\xe3"
      "\xfb\x75\xce\x5f\x68\x95\x53\x9a\x5f\xfa\x51\x4b\xbf\x73\xdf\x9e\x9c\x5d"
      "\xca\x3f\x7f\xec\x7b\x27\x9f\x5a\x85\xf5\x86\x8d\xec\xd9\x1f\x3f\xf7\x9d"
      "\xa3\x27\x4f\x1e\xff\xbe\x17\xcb\x7e\xf1\xb5\xb5\x51\x8d\x61\x5e\xa4\xd3"
      "\x96\xb5\x52\x1f\x2f\x86\x7d\xb1\x63\xb5\x8b\xa8\x78\xc7\x04\xac\xba\x5d"
      "\x2f\x34\x0f\x02\x1e\x3e\xf1\xdd\xa3\xcf\x1c\x7f\xe6\xf8\xa9\x3d\x7b\xf7"
      "\xee\x59\x58\xd8\xfb\xa5\x3d\x8b\xbb\x96\x8e\xeb\x77\x95\x8f\xee\xcb\x4e"
      "\x57\x50\x5b\x60\x25\xb5\x7f\xf4\xab\xae\x09\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x30\xa8\x1f\x1e\x3e\x74\xe1\x9d\x37\xbf\xf0\x6e\xb3\xfd\x7f\xbb"
      "\xfd\x5f\x6a\xff\x9f\x9e\xfc\x4d\xed\xff\x7f\x92\xb5\xff\xcf\xdb\xc9\xa7"
      "\x76\xf0\xa9\x1d\xe0\xed\x5d\xd2\x97\xf2\x64\x1d\xac\x4e\x67\xf9\x6a\x71"
      "\xfa\x68\x56\xdf\xd4\x0d\x40\xf1\x42\x33\xbc\x33\x5b\xee\x63\x31\x6c\x8d"
      "\xe3\x17\xdb\xff\xa7\xe2\xf2\x7e\x5d\x53\x7d\xee\xca\xe6\xd7\x7a\x44\xb3"
      "\xee\x04\xae\xeb\x2f\x65\x3a\xeb\x83\x24\x1f\x2f\xf0\xbe\x18\x9e\x8d\xe1"
      "\xaf\x02\x54\xa8\x98\xed\x3e\x3b\x86\x37\xe8\xdf\xba\xf8\xb0\xb4\xad\xa7"
      "\xfe\x29\x4a\x4d\x78\x1b\xfa\x07\x1e\x1f\xe9\xff\x96\xf7\x5f\x94\xda\x7f"
      "\x77\xed\xd7\xa9\x4b\x7b\x6d\xc6\xcb\x28\x5a\x2c\x56\xbd\x8e\x40\x77\xff"
      "\xdc\x50\xfd\x7f\xff\xab\xbd\xe2\x95\xd7\xc5\xd4\x7b\x9a\x1a\x6d\x79\x3f"
      "\xdb\xb8\xdb\x44\xa3\xe7\x51\xfa\xa0\x23\xd8\x00\xac\x8c\xaa\xc7\xff\xfc"
      "\x7b\x68\x96\x9b\xae\x7f\x9e\xfa\xe3\xd7\x67\xae\x4d\x29\xdb\xa5\x47\x3b"
      "\xf7\x97\x79\xff\xa5\x30\x8c\xbf\xbc\xd3\x19\x5f\xeb\xe3\x4f\xae\x76\xf9"
      "\xf9\xb8\x7d\xa3\x2e\xbf\xea\xf5\x1f\xf5\xf8\x9f\xad\xf1\xef\xe2\xfe\x2f"
      "\xed\xf7\x7a\xef\xff\xb2\x11\xf3\xea\xcb\x2b\xf7\x3f\x3f\xbf\xf8\x6e\xa9"
      "\xd8\xb0\x6d\xd0\xf2\xf3\xf5\x4f\xfd\x40\x6f\x1d\xae\xfc\xcb\xb1\xfc\xb4"
      "\x36\x0f\x86\xc1\xca\x6f\xfc\x32\x2b\x3f\xbf\x21\x34\xa0\xff\x66\xe5\x6f"
      "\x1e\xb0\xfc\xeb\xd6\x7f\xfb\xf2\xca\xff\x5f\x2c\x3f\x7d\x6c\x0f\xdd\x3f"
      "\x68\xf9\xcd\x1a\x17\x13\x9d\xf5\x98\xcd\xd6\x23\xdd\xff\xcb\xaf\x1b\x27"
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      "\x8d\xc6\xea\x5e\xd0\xea\xa3\xd2\xc2\xa9\xfc\xf3\xaf\xfa\xee\x73\xd5\xe7"
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      "\xf5\x7a\xff\x3b\xfa\xa4\xdf\xdf\x27\xfd\x93\x7d\xd2\x3f\xd5\x27\xfd\x81"
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      "\xf6\x3f\xbd\x3e\x3f\x60\xfd\xca\xdb\xe7\xf9\xfe\xc3\xc6\x91\xee\xff\xf4"
      "\xfa\xfe\x6f\x6d\xa7\x4f\x97\xb3\x8c\xb6\x96\xc0\x6a\x78\xe5\xb5\xdd\x07"
      "\x9f\xfc\xcd\xb7\xea\xcd\xf6\xff\xd3\xad\xeb\x21\xe9\x3e\xde\x81\x18\xaf"
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      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
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      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x54\x66\x62\xe9\xef\xe2\xe2\x5c\x11\xc2\xb9\x37\x5e"
      "\x3e\xf4\xc4\x91\x13\xbb\xae\xcd\xd9\xdf\xca\x51\x5f\xfa\x3b\x55\x8a\xd5"
      "\x5a\xcb\x85\xf0\x48\x0c\x27\x63\xf8\x8b\xf8\xe2\xca\x07\xcf\x1f\x2b\x87"
      "\x57\x63\x58\x84\x85\x50\x84\xa2\x35\x3f\x3c\x7e\xa9\x55\xd2\x2d\x21\x84"
      "\xd3\x61\x47\x38\x1f\xea\x61\xdb\xb9\x0b\x2f\xbd\xb5\xf0\xd8\x91\x33\x87"
      "\xcf\xee\x7c\xfb\xd5\x7d\x17\x57\xef\x13\x00\x00\x00\x80\xf5\xef\xff\x01"
      "\x00\x00\xff\xff\x4f\x76\x07\x39",
      2780);
  syz_mount_image(/*fs=*/0x200000000180, /*dir=*/0x200000000300,
                  /*flags=MS_NODIRATIME|MS_DIRSYNC*/ 0x880,
                  /*opts=*/0x2000000001c0, /*chdir=*/0xfe, /*size=*/0xadc,
                  /*img=*/0x200000001900);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x42 (4 bytes)
  //    mode: open_mode = 0x5 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000040, "./file1\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000040ul,
                /*flags=O_CREAT|O_RDWR*/ 0x42, /*mode=S_IXOTH|S_IROTH*/ 5);
  if (res != -1)
    r[0] = res;
  //  pwrite64 arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {32} (length 0x1)
  //    }
  //    count: len = 0xff10 (8 bytes)
  //    pos: intptr = 0x8000c61 (8 bytes)
  //  ]
  memset((void*)0x200000000140, 50, 1);
  syscall(__NR_pwrite64, /*fd=*/r[0], /*buf=*/0x200000000140ul,
          /*count=*/0xff10ul, /*pos=*/0x8000c61ul);
}
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;
}