// https://syzkaller.appspot.com/bug?id=8044da1bfbc0e081a6fffab422931f0cea31d3a6
// 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$hfs arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 00} (length 0x4)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x30008c0 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {66 69 6c 65 5f 75 6d 61 73 6b 3d 30 30 30 30 30
  //          30 30 30 30 30 30 30 30 30 30 30 30 30 30 37 37 37 37 2c 64 69 72
  //          5f 75 6d 61 73 6b 3d 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
  //          30 30 30 30 30 30 30 30 2c 69 6f 63 68 61 72 73 65 74 3d 69 73 6f
  //          38 38 35 39 2d 36 2c 63 6f 64 65 70 61 67 65 3d 63 70 38 35 35 2c
  //          63 72 65 61 74 6f 72 3d 4d dd 71 75 2c 00 ee ab c7 2a 98 32 43 69
  //          50 c6 11 64 98 dd a8 be 60 a9 47 46 ea 68 76 6f 63 d1 d6 39 44 fb
  //          da 2a 93 37 43 9b 37 b6 f2 a6 94 ba 98 f4 00 70 d0 9c 38 90 bd 28
  //          a2 01 8f 1a df e1 e0 a6 30 02 0a 9c ac 1a 43 80 0a 70 a9 32 8d db
  //          2a 2f 2e 20 7d a7 cd 3c af 24 3b 39 ea ff 49 66 b7 aa 97 cb 6c c7
  //          d2 cf c5 9e 7a 97 6d e0 a0 0d 23 c7 ff aa a0 56 cc 4f 8b c7 b4 c0
  //          f9 a2 1d b6 42 b3 e8 32 e3 0a 90 ba 1b 9e 79 33 b7 7c 60 f6 a1 b9
  //          ca 91 28 f0 a2 d0 e2 33 73 c9 d1 5c 79 86 5b ae 97 dd d8 2b 98 00
  //          1b 6a a9 c5 39 0e 4d ea f5 f0 ee 49 2c 68 42 b1 c0 84 86 e4 79 a8
  //          89 49 14 59 a2 57 e9 d4 08 36 34 da c6 cd 58 52 0f 72 e6 c2 f1 1b
  //          bd 5b 03 65 5b b1 86 3b 16 f3} (length 0x14e)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {11 f4 57 9b e0 1e 43 5c 58 4a 33 c6 3f 81 73 f9
  //          6b c4 54 60 35 80 4d 47 be 19 16 3b d9 e5 89 bf dd 0a 9e 68 04 49
  //          5a 4e 4d 83 80 4e 78 ac 5a 72 44 62 95 af d7 9d e3 fd 6a 02 93 2a
  //          26 ab 40 45 13 3c 37 1e 56 b0 d4 85 44 db 3c 7d b2 3a 43 2f 83 7b
  //          93 f8 9b 6f 22 3c d1 f6 73 1d 40 7f fd b1 dd 94 67 f5 cd 2d 6c 4e
  //          8b 9d 4f 50 d3 38 ac 91 50 1a 4b b7 80 c4 72 39 29 e2 2f 55 25 45
  //          46 fa cc 4f 02 84 e6 44 e6} (length 0x87)
  //        }
  //        union ANYUNION {
  //          ANYRES8: ANYRES8 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRESHEX: ANYRES64 (resource)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x11 (1 bytes)
  //    size: len = 0x314 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x314)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x2000000007c0, "hfs\000", 4);
  memcpy((void*)0x200000000000, "./file1\000", 8);
  memcpy(
      (void*)0x200000000980,
      "\x66\x69\x6c\x65\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x37\x37\x37\x37\x2c\x64"
      "\x69\x72\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x2c\x69\x6f\x63"
      "\x68\x61\x72\x73\x65\x74\x3d\x69\x73\x6f\x38\x38\x35\x39\x2d\x36\x2c\x63"
      "\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x38\x35\x35\x2c\x63\x72\x65\x61"
      "\x74\x6f\x72\x3d\x4d\xdd\x71\x75\x2c\x00\xee\xab\xc7\x2a\x98\x32\x43\x69"
      "\x50\xc6\x11\x64\x98\xdd\xa8\xbe\x60\xa9\x47\x46\xea\x68\x76\x6f\x63\xd1"
      "\xd6\x39\x44\xfb\xda\x2a\x93\x37\x43\x9b\x37\xb6\xf2\xa6\x94\xba\x98\xf4"
      "\x00\x70\xd0\x9c\x38\x90\xbd\x28\xa2\x01\x8f\x1a\xdf\xe1\xe0\xa6\x30\x02"
      "\x0a\x9c\xac\x1a\x43\x80\x0a\x70\xa9\x32\x8d\xdb\x2a\x2f\x2e\x20\x7d\xa7"
      "\xcd\x3c\xaf\x24\x3b\x39\xea\xff\x49\x66\xb7\xaa\x97\xcb\x6c\xc7\xd2\xcf"
      "\xc5\x9e\x7a\x97\x6d\xe0\xa0\x0d\x23\xc7\xff\xaa\xa0\x56\xcc\x4f\x8b\xc7"
      "\xb4\xc0\xf9\xa2\x1d\xb6\x42\xb3\xe8\x32\xe3\x0a\x90\xba\x1b\x9e\x79\x33"
      "\xb7\x7c\x60\xf6\xa1\xb9\xca\x91\x28\xf0\xa2\xd0\xe2\x33\x73\xc9\xd1\x5c"
      "\x79\x86\x5b\xae\x97\xdd\xd8\x2b\x98\x00\x1b\x6a\xa9\xc5\x39\x0e\x4d\xea"
      "\xf5\xf0\xee\x49\x2c\x68\x42\xb1\xc0\x84\x86\xe4\x79\xa8\x89\x49\x14\x59"
      "\xa2\x57\xe9\xd4\x08\x36\x34\xda\xc6\xcd\x58\x52\x0f\x72\xe6\xc2\xf1\x1b"
      "\xbd\x5b\x03\x65\x5b\xb1\x86\x3b\x16\xf3",
      334);
  memcpy((void*)0x200000000ace,
         "\x11\xf4\x57\x9b\xe0\x1e\x43\x5c\x58\x4a\x33\xc6\x3f\x81\x73\xf9\x6b"
         "\xc4\x54\x60\x35\x80\x4d\x47\xbe\x19\x16\x3b\xd9\xe5\x89\xbf\xdd\x0a"
         "\x9e\x68\x04\x49\x5a\x4e\x4d\x83\x80\x4e\x78\xac\x5a\x72\x44\x62\x95"
         "\xaf\xd7\x9d\xe3\xfd\x6a\x02\x93\x2a\x26\xab\x40\x45\x13\x3c\x37\x1e"
         "\x56\xb0\xd4\x85\x44\xdb\x3c\x7d\xb2\x3a\x43\x2f\x83\x7b\x93\xf8\x9b"
         "\x6f\x22\x3c\xd1\xf6\x73\x1d\x40\x7f\xfd\xb1\xdd\x94\x67\xf5\xcd\x2d"
         "\x6c\x4e\x8b\x9d\x4f\x50\xd3\x38\xac\x91\x50\x1a\x4b\xb7\x80\xc4\x72"
         "\x39\x29\xe2\x2f\x55\x25\x45\x46\xfa\xcc\x4f\x02\x84\xe6\x44\xe6",
         135);
  *(uint8_t*)0x200000000b55 = -1;
  sprintf((char*)0x200000000b56, "0x%016llx", (long long)0);
  memcpy(
      (void*)0x200000000b80,
      "\x78\x9c\xec\xdd\x4d\x6b\x13\x4f\x1c\x07\xf0\xef\xec\xa6\x4d\xfa\x6f\xe9"
      "\x7f\xb5\x15\xc1\x83\x48\x35\x60\x2f\xa2\xf5\x22\x5e\x22\x25\x2f\xc2\x93"
      "\xa8\x4d\x0a\xc5\x25\xa2\xb6\xf8\x80\x60\x15\x4f\x22\xf6\xee\xdd\xa3\x57"
      "\x5f\x83\x78\x51\x04\xcf\xf5\xe4\x49\x3c\x78\xaa\x07\x19\x99\x87\x64\x9f"
      "\x37\xa9\x66\x77\x53\xfd\x7e\xc0\xb2\xd9\xd9\x99\xfd\xed\xce\xce\x53\xc0"
      "\x2c\x88\xe8\x9f\xb5\xda\xde\x7d\x75\xfe\x8b\xfa\x27\x00\x17\x2e\xf0\xec"
      "\x22\xe0\x00\x68\x00\x35\x00\x47\x70\xb4\xb1\xd5\xdb\xdc\xd8\xf4\xbb\x9d"
      "\xbc\x82\x5c\x1c\xaf\x9b\x5c\x02\x26\xa7\x48\x1c\xb3\xd6\xeb\xa6\x65\x6d"
      "\xc0\xe6\xb0\x3c\xf5\xa9\x86\xb9\xf0\x3e\x2a\x86\x94\xf2\xd2\xe7\xaa\x83"
      "\xa0\xca\xe9\xd6\x2f\xdd\xe8\xce\x13\xba\x27\xa8\xdb\xd6\xa9\x13\x1b\x15"
      "\xc5\x97\xe5\xf1\xfe\xb3\x7c\x9b\x01\xb0\x5d\x44\x30\x13\x25\xbf\xa6\xc4"
      "\x1e\xf6\x70\x0f\xf3\xa5\x85\x43\x44\x44\x13\x49\x98\xf1\xdd\xb1\xe3\xfc"
      "\x9c\x9d\xbf\x3b\x0e\xd0\xb4\x83\x89\x4a\x9b\xb8\xf1\xff\x77\xed\x55\x1d"
      "\x40\xe1\x64\x6e\x6a\x68\xfc\xd7\xab\x2c\x29\x54\xbd\xff\xaf\x93\x82\xf5"
      "\x9e\x5e\xc2\xa9\x74\xa7\xbf\x4a\x4c\x2b\xeb\x75\xec\xf3\x54\xec\xf3\x34"
      "\xcc\xd3\x13\x99\x5d\x8a\x61\xab\x4a\x1d\x8b\x33\xb3\xbe\xe1\x77\xcf\xac"
      "\xdd\xf4\x3b\x0e\x9e\xa0\x65\x85\x0e\x5b\xd4\x7f\x3b\xf6\xf1\xb4\x22\xd1"
      "\xd6\x13\x45\x2f\xa5\xac\x4d\x73\x0c\x4a\x9b\xc9\x3c\x44\xa4\xcf\x28\x67"
      "\xf5\x35\x4c\xa9\x6b\x58\x31\xf1\xdf\x05\x10\x89\x7f\x21\xf7\x8c\x05\x10"
      "\xef\xc4\x07\x71\x45\x78\x78\x89\xce\x60\xfe\x57\x93\x42\x55\x93\xae\x29"
      "\x2f\x56\x53\x26\xfe\xb3\xd9\x25\xea\xab\xf4\xd4\x51\xb0\xdd\x46\xab\xd5"
      "\x72\x22\x87\x1c\xd2\x27\x39\x66\xcf\x60\x0d\xb9\xca\x06\xdc\xac\x33\x4e"
      "\xdb\x32\x23\x5f\x10\x78\xc3\xe2\xd4\xb9\x0e\xc7\x72\x99\xab\x3b\x37\x24"
      "\xd7\x42\x6a\xae\x15\xbd\xbd\x0c\x27\x23\xd7\x62\x24\x97\xba\x9a\xf5\x0d"
      "\xff\x6d\xf6\xa9\x4a\x21\x5e\x88\xcb\x62\x09\x5f\xf1\x06\xed\xd0\xfc\xdf"
      "\x51\xf1\x35\x91\x6c\x99\xa1\x87\x3e\x68\x35\xa2\x69\x86\x02\x7d\xc7\x55"
      "\xeb\x8c\xd6\x6c\x48\xad\x69\x7b\x22\x3d\x72\x6c\x7d\xda\x7d\x68\xf6\x27"
      "\x9b\xcb\xe0\x2e\x26\x1b\xac\xf5\x23\xbf\x4f\xa3\x7d\x78\x8e\xeb\xb8\x80"
      "\xf9\x3b\xf7\x1f\xdc\x70\x7d\xbf\x7b\x5b\x6d\x5c\xf3\xd5\xe3\xaa\x37\x06"
      "\x7b\x6e\xcd\xd9\x0d\xbf\x3b\xf5\x14\x08\x27\x4d\xca\x06\xb6\x83\x3d\x75"
      "\x48\x2d\x71\x70\x7f\x50\x2a\x33\xb0\xe5\xb1\x16\xa8\xfa\x8f\x94\x24\xd5"
      "\xb0\x7a\xdf\xfb\x7b\x54\x2b\x1b\x56\xe0\xa3\x3f\x8d\x47\xf5\x03\x85\xde"
      "\xba\xd9\x11\xae\x62\x7f\x1b\xfd\xae\x6b\x3c\x05\xb6\xdf\x8f\xe7\x41\xea"
      "\x4f\x1b\x22\x49\x3f\xa5\x94\x25\x36\xa2\x1d\x7b\x67\xe2\x49\xd5\x74\x4b"
      "\x54\xae\xa0\xd2\x47\x3b\x3e\x65\xaa\x43\x07\x9b\xaa\x52\x61\xd6\x7f\xc1"
      "\x7a\xa5\x66\x26\x7b\xea\x8f\x97\x3a\x4f\x1f\xf1\x8b\x00\x5b\xa2\x54\x73"
      "\xec\xc1\x0a\x2e\xc8\x2b\xcd\x8c\x1c\xc0\x7f\x39\x2b\xb8\xb4\x62\x33\x57"
      "\x70\xc9\x35\x57\x62\xcd\xa8\xd7\x5c\x27\x4f\x03\xa7\x46\x3f\xa3\x67\xe3"
      "\xfc\x4b\x88\x36\x3e\xe2\x2a\xbf\xff\x27\x22\x22\x22\x22\x22\x22\x22\x22"
      "\x22\x22\x22\x22\x22\x22\x22\x22\x22\x22\x22\x3a\x68\xca\xf8\xcf\x30\x55"
      "\x5f\x23\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11\x11"
      "\x11\x11\x11\x11\x11\x11\xd1\x41\xb7\xda\x80\xf9\xdd\x6b\xf4\xdf\xff\x8b"
      "\xd1\xde\xff\x1b\x7f\x15\x8b\x6b\x7e\x12\x7c\x2c\xef\xff\xdd\xe9\x81\xef"
      "\xff\x25\x2a\xde\xaf\x00\x00\x00\xff\xff\xf0\x7f\x73\xc7",
      788);
  syz_mount_image(
      /*fs=*/0x2000000007c0, /*dir=*/0x200000000000,
      /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_NODIRATIME|MS_MANDLOCK|MS_DIRSYNC*/
      0x30008c0, /*opts=*/0x200000000980, /*chdir=*/0x11, /*size=*/0x314,
      /*img=*/0x200000000b80);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: open_flags = 0x4040 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000280, "./bus\000", 6);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000280ul,
          /*flags=O_DIRECT|O_CREAT*/ 0x4040, /*mode=*/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;
  do_sandbox_none();
  return 0;
}