// https://syzkaller.appspot.com/bug?id=29a05f558dd8f68f2f9216c6b007a72e1cb6d70d
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.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 void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

#define MAX_FDS 30

//% 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)) {
  }
}

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);
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void close_fds()
{
  for (int fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$exfat arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 66 61 74 00} (length 0x6)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x1200082 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {65 72 72 6f 72 73 3d 63 6f 6e 74 69 6e 75 65 2c
  //          65 72 72 6f 72 73 3d 63 6f 6e 74 69 6e 75 65 2c 75 74 66 38 2c 75
  //          6d 61 73 6b 3d 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
  //          30 32 31 36 32 36 2c 69 6f 63 68 61 72 73 65 74 3d 63 70 39 35 30
  //          2c 64 69 73 63 61 72 64 2c 61 6c 6c 6f 77 5f 75 74 69 6d 65 3d 30
  //          30 30 30 30 30 30 30 35 2c 65 72 72 6f 72 73 3d 72 65 6d 6f 75 6e
  //          74 2d 72 6f 2c 64 69 73 63 61 72 64 2c 00 d5 01 94 37 7d 24 b5 95
  //          39 51 fb b0 e6 d2 20 4f 45 9a 21 29 e5 45 09 e9 55 e3 ac 3e 9d d7
  //          60 61 ae b3 41 a8 ae 53 56 4e 80 62 89 fa d8 ca b1 be 25 d1 de 2b
  //          9d 46 be 57 d2 e9 c2 de d4 32 41 3a b1 47 de 64 3c 40 0d ba 4f 15
  //          a9 0c 96 2b cd 8d 80 5d 7d 5f 57} (length 0xe1)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x1548 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x1548)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x2000000000c0, "exfat\000", 6);
  memcpy((void*)0x2000000002c0, "./bus\000", 6);
  memcpy(
      (void*)0x200000000500,
      "\x65\x72\x72\x6f\x72\x73\x3d\x63\x6f\x6e\x74\x69\x6e\x75\x65\x2c\x65\x72"
      "\x72\x6f\x72\x73\x3d\x63\x6f\x6e\x74\x69\x6e\x75\x65\x2c\x75\x74\x66\x38"
      "\x2c\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x32\x31\x36\x32\x36\x2c\x69\x6f\x63\x68\x61"
      "\x72\x73\x65\x74\x3d\x63\x70\x39\x35\x30\x2c\x64\x69\x73\x63\x61\x72\x64"
      "\x2c\x61\x6c\x6c\x6f\x77\x5f\x75\x74\x69\x6d\x65\x3d\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x35\x2c\x65\x72\x72\x6f\x72\x73\x3d\x72\x65\x6d\x6f\x75\x6e"
      "\x74\x2d\x72\x6f\x2c\x64\x69\x73\x63\x61\x72\x64\x2c\x00\xd5\x01\x94\x37"
      "\x7d\x24\xb5\x95\x39\x51\xfb\xb0\xe6\xd2\x20\x4f\x45\x9a\x21\x29\xe5\x45"
      "\x09\xe9\x55\xe3\xac\x3e\x9d\xd7\x60\x61\xae\xb3\x41\xa8\xae\x53\x56\x4e"
      "\x80\x62\x89\xfa\xd8\xca\xb1\xbe\x25\xd1\xde\x2b\x9d\x46\xbe\x57\xd2\xe9"
      "\xc2\xde\xd4\x32\x41\x3a\xb1\x47\xde\x64\x3c\x40\x0d\xba\x4f\x15\xa9\x0c"
      "\x96\x2b\xcd\x8d\x80\x5d\x7d\x5f\x57",
      225);
  memcpy(
      (void*)0x200000000840,
      "\x78\x9c\xec\xdc\x0b\x98\x8d\x55\xdb\x38\xf0\xfb\x5e\x6b\x3d\x0c\x4d\xda"
      "\x4d\x72\x18\xd6\x5a\xf7\xc3\xa6\xc1\x32\x49\x92\x43\x92\x1c\x92\x24\x49"
      "\x92\x73\x42\xd2\x24\x49\x42\x62\xc8\x29\x69\x48\x42\x8e\x13\x72\x18\x42"
      "\x72\x98\x98\x34\xce\xe7\x43\xce\x49\xf2\x4a\x92\x24\x24\x24\x59\xff\x6b"
      "\x4a\x7f\xdf\x5b\x5f\x57\x7d\xdf\xdb\xfb\x7a\xbf\x77\xee\xdf\x75\x3d\xd7"
      "\x5e\xf7\xec\x7d\xdf\xfb\x7e\xf6\x3d\xd7\xde\xcf\xf3\xec\x6b\xe6\xab\xae"
      "\xc3\x6a\x36\xae\x55\xad\x21\x11\xc1\x3f\x04\x7f\xbe\x49\x06\x80\x18\x00"
      "\x18\x04\x00\xd7\x00\x40\x00\x00\xe5\xe2\xca\xc5\x65\xdd\x9f\x4b\x62\xf2"
      "\x3f\xf6\x24\xec\xaf\xf5\x60\xda\x95\xee\x80\x5d\x49\x3c\xff\xec\x8d\xe7"
      "\x9f\xbd\xf1\xfc\xb3\x37\x9e\x7f\xf6\xc6\xf3\xcf\xde\x78\xfe\xd9\x1b\xcf"
      "\x3f\x7b\xe3\xf9\x33\x96\x9d\x6d\x9d\x59\xf0\xda\x7f\xf1\xb6\xf0\xcb\x7f"
      "\xfd\x73\xf2\xf6\x3b\xdb\xa5\xeb\xff\x31\xc0\xd7\xff\xb3\x21\xfe\xfc\xcf"
      "\xde\x78\xfe\xff\x31\xbc\xf7\xbd\xff\xc7\x49\x3c\xff\xec\x8d\xe7\x9f\xbd"
      "\xf1\xfc\xb3\x37\x9e\x7f\xf6\xc6\xf3\xcf\xde\x78\xfe\xd9\x8b\xfd\x55\xcc"
      "\xf3\x67\x2c\x3b\xfb\x4b\xae\x23\xe7\xbc\x54\xec\x77\x1f\x23\xae\xc4\xf7"
      "\x0c\x7f\xd5\xf6\xcb\x4b\xf5\xbf\xae\x21\x20\xeb\xb6\x58\xf0\x73\x99\x7f"
      "\x56\x9f\xc1\xff\x2a\xef\x0a\xfd\xda\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
      "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6"
      "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
      "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18"
      "\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31"
      "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
      "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6"
      "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\xcb\x66\xce\xf9\xcb\x14\x00"
      "\xfc\xb2\xbe\xd2\x7d\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\xec\xaf\xe3\x73"
      "\x5e\xe9\x0e\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xf6\xcf\x87\x00\x4a\x82"
      "\x82\x00\x72\x40\x4e\x88\x81\x5c\x90\x1b\xae\x82\x58\xb8\x1a\xf2\xc0\x35"
      "\x10\x81\x6b\x21\x0e\xae\x83\xbc\x70\x3d\xe4\x83\xfc\x50\x00\x0a\x42\x3c"
      "\x14\x82\xc2\xa0\xc1\x80\x05\x82\x10\x8a\x40\x51\x88\x42\x31\x28\x0e\x37"
      "\x40\x02\x94\x80\x92\x50\x0a\x1c\x94\x86\x44\xb8\x11\xca\xc0\x4d\x50\x16"
      "\x6e\x86\x72\x70\x0b\x94\x87\x5b\xa1\x02\x54\x84\x4a\x50\x19\x6e\x83\x2a"
      "\x70\x3b\x54\x85\x3b\xa0\x1a\xdc\x09\xd5\xa1\x06\xd4\x84\x5a\x70\x17\xd4"
      "\xc6\xbb\xa1\x0e\xdc\x03\x75\xe1\x5e\xa8\x07\xf7\x41\x7d\xb8\x1f\x1a\xc0"
      "\x03\xd0\x10\x1e\x84\x46\xf0\x10\x34\x86\x87\xa1\x09\x34\x85\x66\xd0\x1c"
      "\x5a\x40\x4b\x68\xf5\xeb\x7c\xf8\x33\xf9\xcf\x43\x4f\x78\x01\x7a\x41\x6f"
      "\x48\x86\x3e\xd0\x17\x5e\x84\x7e\xd0\x1f\x06\xc0\x40\x18\x04\x2f\xc1\x60"
      "\x78\x19\x86\xc0\x2b\x90\x02\x43\x61\x18\xbc\x0a\xc3\xe1\x35\x18\x01\xaf"
      "\xc3\x48\x18\x05\xa3\xe1\x0d\x18\x03\x63\x61\x1c\x8c\x87\x09\x30\x11\x52"
      "\xe1\x4d\x98\x04\x93\x61\x0a\xbc\x05\x53\x61\x1a\x4c\x87\x19\x90\x06\x33"
      "\x61\x16\xbc\x0d\xb3\x61\x0e\xcc\x85\x77\x60\x1e\xbc\x0b\xf3\x61\x01\x2c"
      "\x84\x45\x90\x0e\xef\xc1\x62\x58\x02\x19\xf0\x3e\x2c\x85\x0f\x20\x13\x96"
      "\xc1\x72\x58\x01\x2b\x61\x15\xac\x86\x35\xb0\x16\xd6\xc1\x7a\xd8\x00\x1b"
      "\x61\x13\x6c\x86\x2d\xb0\x15\x3e\x84\x6d\xb0\x1d\x76\xc0\x4e\xd8\x05\xbb"
      "\x61\x0f\x7c\x04\x7b\xe1\x63\xd8\x07\x9f\xc0\x7e\xf8\xf4\x7f\x98\x7f\xf6"
      "\xe7\xfc\x9f\xae\xf9\x64\xe5\x77\x43\x40\x40\x81\x02\x15\x2a\xcc\x81\x39"
      "\x30\x06\x63\x30\x37\xe6\xc6\x58\x8c\xc5\x3c\x98\x07\x23\x18\xc1\x38\x8c"
      "\xc3\xbc\x98\x17\xf3\x61\x3e\x2c\x80\x05\x30\x1e\x00\x0b\x63\x61\x34\x68"
      "\x90\x90\xb0\x08\x16\xc1\x28\x46\xb1\x38\x16\xc7\x04\x4c\xc0\x92\x58\x12"
      "\x1d\x3a\x4c\xc4\x44\x2c\x83\x37\x61\x59\x2c\x8b\xe5\xb0\x1c\x96\xc7\xf2"
      "\x58\x01\x2b\x62\x45\xac\x8c\x95\xb1\x0a\x56\xc1\xaa\x58\x15\xab\xdd\xba"
      "\x00\x00\xab\x63\x4d\xac\x89\x77\xe1\x5d\x78\x37\xd6\xc1\x3a\x58\x17\xeb"
      "\x62\x3d\xac\x87\xf5\xb1\x3e\x36\xc0\x06\xd8\x10\x1b\x62\x23\x6c\x84\x8d"
      "\xb1\x31\x36\xc1\x26\xd8\x0c\x9b\x61\x0b\x6c\x81\xad\xb0\x15\xb6\xc6\xd6"
      "\xd8\x06\xdb\x60\x3b\x6c\x87\xed\xb1\x3d\x76\xc0\x0e\x98\x84\x49\xd8\x11"
      "\x3b\x62\x27\xec\x84\x9d\xb1\x33\x76\xc1\x2e\xd8\x15\xbb\x62\x37\xec\x8e"
      "\xdd\xf1\x79\x7c\x1e\x5f\xc0\x17\xb0\x37\x56\x17\x7d\xb0\x2f\xf6\xc5\x7e"
      "\xd8\x0f\x07\xe0\x40\x1c\x88\x2f\xe1\x60\x7c\x19\x5f\xc6\xc9\x98\x82\x43"
      "\x71\x18\xbe\x8a\xaf\xe2\x6b\x38\x02\xcf\xa0\xc0\x51\x38\x1a\x47\x63\x15"
      "\x31\x16\xc7\xe1\x78\x24\x31\x11\x53\x31\x15\x27\xe1\x24\x9c\x82\x53\x70"
      "\x2a\x4e\xc3\x69\x38\x03\xd3\x70\x26\xce\xc2\x59\x38\x1b\xe7\xe0\x1c\x7c"
      "\x07\xe7\xe1\xbb\xf8\x2e\x2e\xc0\x05\xb8\x08\xd3\x31\x1d\x17\xe3\x12\xcc"
      "\xc0\x0c\x5c\x8a\x67\x31\x13\x97\xe1\x72\x5c\x81\x2b\x01\x70\x25\xae\xc1"
      "\xb5\xb8\x06\xd7\xe3\x06\x5c\x8f\x9b\x70\x13\x6e\xc1\x2d\xf8\x21\x7e\x88"
      "\xdb\x71\x3b\xee\xc4\x9d\xb8\x1b\x77\xe3\x47\xf8\x11\x7e\x8c\x1f\x63\x0a"
      "\x36\x05\x80\x03\x78\x00\x0f\xe2\x41\x3c\x84\x87\xf0\x30\x1e\xc6\x23\x78"
      "\x04\x8f\xe2\x51\x3c\x86\xc7\xf0\x38\x1e\xc7\x13\x78\x12\x4f\xe1\x49\x3c"
      "\x8d\xa7\xf1\x0c\x9e\xc5\x73\x78\x0e\xcf\xe3\x79\xbc\x80\xcf\xc6\x7f\xd1"
      "\x68\x77\x89\x75\x29\x20\xb2\x28\xa1\x44\x0e\x91\x43\xc4\x88\x18\x91\x5b"
      "\xe4\x16\xb1\x22\x56\xe4\x11\x79\x44\x44\x44\x44\x9c\x88\x13\x79\x45\x5e"
      "\x91\x4f\xe4\x13\x05\x44\x01\x11\x2f\xe2\x45\x61\x51\x58\x18\x61\x04\x89"
      "\x50\x14\x11\x45\x44\x54\x44\x45\x71\x51\x5c\x24\x88\x04\x51\x52\x94\x14"
      "\x7d\x84\x13\x89\x22\x51\x94\x11\x65\x44\x59\x51\x56\x94\x13\xb7\x88\xf2"
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      "\x94\xfd\xd6\x9e\xb6\xdf\xd9\x33\xf6\xec\x4f\xfb\x9f\xb5\xef\xdf\xda\x1f"
      "\xed\x45\xeb\x2d\x10\x92\x20\x49\x8a\x02\xca\x41\x39\x29\x86\x72\x51\x6e"
      "\xba\x8a\x62\xe9\x6a\xca\x43\xd7\x50\x84\x24\xc4\xd1\x75\x94\x97\xae\xa7"
      "\x7c\x94\x9f\x0a\x50\x41\x8a\xa7\x42\x54\x98\x34\x19\xb2\x44\x14\x52\x11"
      "\x2a\x4a\x51\x2a\x46\xc5\xe9\x06\x4a\xa0\x12\x54\x92\x4a\x91\xa3\xd2\x94"
      "\x48\x37\x52\x19\xba\x89\xca\xd2\xcd\x54\x8e\x6e\xa1\xf2\x74\x2b\x55\xa0"
      "\x8a\x54\x89\x2a\xd3\x6d\x54\x85\x6e\xa7\xaa\x74\x07\x55\xa3\x3b\xa9\x3a"
      "\xd5\xa0\x9a\x54\x8b\xee\xa2\xda\x74\x37\xd5\xa1\x7b\xa8\x2e\xdd\x4b\xf5"
      "\xe8\x3e\xaa\x4f\xf7\x53\x03\x7a\x80\x1a\xd2\x83\xd4\x88\x1e\xa2\xc6\xf4"
      "\x30\x35\xa1\xa6\xd4\x8c\x9a\x53\x0b\x6a\x49\xad\xe8\x11\x6a\x4d\x8f\x52"
      "\x1b\x6a\x4b\xed\xe8\x31\x6a\x4f\x8f\x53\x07\x7a\x82\x92\xe8\x49\xea\x48"
      "\x4f\x51\x27\x7a\x9a\x3a\xd3\x33\xd4\x85\x9e\xa5\xae\xf4\x1c\x75\xa3\xee"
      "\xd4\x83\x9e\xa7\x9e\xf4\x02\xf5\xa2\xde\x94\x4c\x7d\xa8\x2f\xbd\x48\xfd"
      "\xa8\x3f\x0d\xa0\x81\x34\x88\x5e\xaa\x0e\x00\x34\x84\x5e\xa1\x14\x1a\x4a"
      "\xc3\xe8\x55\x1a\x4e\xaf\xd1\x08\x7a\x9d\x46\xd2\x28\x1a\x4d\x6f\xd0\x18"
      "\x1a\x4b\xe3\x68\x3c\x4d\xa0\x89\x94\x4a\x6f\xd2\x24\x9a\x4c\x53\xe8\x2d"
      "\x9a\x4a\xd3\x68\x3a\xcd\xa0\x34\x9a\x49\xb3\xe8\x6d\x9a\x4d\x73\x68\x2e"
      "\xbd\x43\xf3\xe8\x5d\x9a\x4f\x0b\x68\x21\x2d\xa2\x74\x7a\x8f\x16\xd3\x12"
      "\xca\xa0\xf7\x69\x29\x7d\x40\x99\xb4\x8c\x96\xd3\x0a\x5a\x49\xab\x68\x35"
      "\xad\xf1\x39\x01\x68\x3d\x6d\xa0\x8d\xb4\x89\x36\xd3\x16\xda\x4a\x1f\xd2"
      "\x36\xda\x4e\x48\x3b\x69\x17\xed\xa6\x3d\xf4\x11\xed\xa5\x8f\x69\x1f\x7d"
      "\x42\xfb\xe9\x53\x3a\x40\x88\x07\xe9\x33\x3a\x44\x9f\xd3\x61\xfa\x82\x8e"
      "\xd0\x97\x74\x94\xbe\xa2\x63\xf4\x35\x1d\xa7\x6f\xe8\x04\x9d\xa4\x53\xf4"
      "\x2d\x9d\x26\x05\x67\xe8\x2c\x9d\xa3\xef\xe9\x3c\xfd\x40\x17\xe8\x47\xba"
      "\x48\x9e\x20\xc4\x50\x84\x32\x54\x61\x10\xe6\x08\x73\x86\x31\x61\xae\x30"
      "\x77\x78\x55\x18\x1b\x5e\x1d\xe6\x09\xaf\x09\x23\xe1\xb5\x61\x5c\x78\x5d"
      "\x98\x37\xbc\x3e\xcc\x17\xe6\x0f\x0b\x84\x05\xc3\xf8\xb0\x50\x58\x38\xd4"
      "\xa1\x09\x6d\x48\x61\x18\x16\x09\x8b\x86\xd1\xb0\x58\x58\x3c\xbc\x21\x4c"
      "\x08\x4b\x84\x25\xc3\x52\xa1\x0b\x4b\x87\x89\xe1\x8d\x61\x99\xf0\xa6\xb0"
      "\x6c\x78\x73\x58\x2e\xbc\x25\x2c\x1f\xde\x1a\x56\x08\x2b\x86\x0f\xdf\x5b"
      "\x39\xbc\x2d\xac\x12\xde\x1e\x56\x0d\xef\x08\xab\x85\x77\x86\xd5\xc3\x1a"
      "\x61\xcd\xb0\x56\x78\x57\x58\x3b\xbc\x3b\xac\x13\xde\x13\xd6\x0d\xef\x0d"
      "\xcb\x86\xf7\x85\xf5\xc3\xfb\xc3\x06\xe1\x03\x61\xc3\xf0\xc1\xb0\x51\xf8"
      "\x50\xd8\x38\x7c\x38\x6c\x12\x36\x0d\x9b\x85\xcd\xc3\x16\x61\xcb\xb0\x55"
      "\xf8\x48\xd8\x3a\x7c\x34\x6c\x13\xb6\x0d\xdb\x85\x8f\x85\xed\xc3\xc7\xc3"
      "\x0e\xe1\x13\x61\x52\xf8\x64\xd8\x31\x7c\xea\x0f\xef\x4f\x0e\xfb\x84\x7d"
      "\xc3\x17\xc3\x17\x43\xef\xef\x91\x0b\xa3\x8b\xa2\xe9\xd1\xf7\xa2\x8b\xa3"
      "\x4b\xa2\x19\xd1\xf7\xa3\x4b\xa3\x1f\x44\x33\xa3\xcb\xa2\xcb\xa3\x2b\xa2"
      "\x2b\xa3\xab\xa2\xab\xa3\x6b\xa2\x6b\xa3\xeb\xa2\xeb\xa3\x1b\xa2\x1b\xa3"
      "\x9b\xa2\x9b\xa3\x5b\xa2\xde\xd7\xca\x09\x0e\x9d\x70\xd2\x29\x17\xb8\x1c"
      "\x2e\xa7\x8b\x71\xb9\x5c\x6e\x77\x95\x8b\x75\x57\xbb\x3c\xee\x1a\x17\x71"
      "\xd7\xba\x38\x77\x9d\xcb\xeb\xae\x77\xf9\x5c\x7e\x57\xc0\x15\x74\xf1\xae"
      "\x90\x2b\xec\xb4\x33\xce\x3a\x72\xa1\x2b\xe2\x8a\xba\xa8\x2b\xe6\x8a\xbb"
      "\x1b\x5c\x82\x2b\xe1\x4a\xba\x52\xce\xb9\xd2\x2e\xd1\xb5\x74\xad\x5c\x2b"
      "\xd7\xda\x3d\xea\xda\xb8\xb6\xae\x9d\x7b\xcc\x3d\xe6\x1e\x77\x8f\xbb\x27"
      "\xdc\x13\xee\x49\xd7\xd1\x3d\xe5\x3a\xb9\xa7\x5d\x67\xf7\x8c\xeb\xe2\x9e"
      "\x75\xcf\xba\xe7\x5c\x37\xd7\xdd\xf5\x70\xcf\xbb\x9e\xee\x05\xd7\xcb\xf5"
      "\x76\xc9\x2e\xd9\xf5\x75\x7d\x5d\x3f\xd7\xcf\x0d\x70\x03\xdc\x20\x37\xc8"
      "\x0d\x76\x83\xdd\x10\x37\xc4\xa5\xb8\x14\x37\xcc\x0d\x73\xc3\xdd\x70\x37"
      "\xc2\x8d\x70\x23\xdd\x48\x37\xda\x8d\x76\x63\xdc\x18\x37\xce\x8d\x73\x13"
      "\xfc\x04\x97\xea\x52\xdd\x24\x37\xc9\x4d\x71\x53\xdc\x54\x37\xd5\x4d\x77"
      "\xd3\x5d\x9a\x4b\x73\xb3\xdc\x2c\x37\xdb\xcd\x76\x73\xdd\x5c\x37\x2f\x61"
      "\x9e\x9b\xef\xe6\xbb\x85\x6e\xa1\x4b\x77\xe9\x6e\xb1\x5b\xec\x32\x5c\x86"
      "\x5b\xea\x96\xba\x4c\x97\xe9\x96\xbb\xe5\x6e\xa5\x5b\xe9\x56\xbb\xd5\x6e"
      "\xad\x5b\xeb\xd6\xbb\xf5\x6e\xa3\xdb\xe8\x36\xbb\xcd\x6e\xab\xdb\xea\xb6"
      "\xb9\x6d\x6e\x87\xdb\xe1\x76\xb9\x5d\x6e\x8f\xdb\xe3\xf6\xba\xbd\x6e\x9f"
      "\xdb\xe7\xf6\xbb\xfd\xee\x80\x3b\x70\xce\xbb\x83\xee\x90\xfb\xdc\x1d\x76"
      "\x5f\xb8\x23\xee\x4b\x77\xd4\x7d\xe5\x8e\xb9\xaf\xdd\x71\xf7\x8d\x3b\xe1"
      "\x4e\xba\x53\xee\x5b\x77\xda\x7d\xe7\xce\xb8\xb3\xee\x9c\xfb\xde\x9d\x77"
      "\x3f\xb8\x0b\xee\x47\x77\xd1\x79\x97\x1a\x79\x33\x32\x29\x32\x39\x32\x25"
      "\xf2\x56\x64\x6a\x64\x5a\x64\x7a\x64\x46\x24\x2d\x32\x33\x32\x2b\xf2\x76"
      "\x64\x76\x64\x4e\x64\x6e\x04\x61\x5e\xe4\xdd\xc8\xfc\xc8\x82\xc8\xc2\xc8"
      "\xa2\x48\x7a\xe4\xbd\xc8\xe2\xc8\x92\x48\x46\xe4\xfd\xc8\xd2\xc8\x07\x91"
      "\xcc\xc8\xb2\xc8\xf2\xc8\x8a\xc8\xca\xc8\xaa\x88\xf7\x85\xb6\x85\xbe\x88"
      "\x2f\xea\xa3\xbe\x98\x2f\xee\x6f\xf0\x09\xbe\x84\x2f\xe9\x4b\x79\xe7\x4b"
      "\xfb\x44\x7f\xa3\x2f\xe3\x6f\xf2\x65\xfd\xcd\xbe\x9c\xbf\xc5\x97\xf7\xb7"
      "\xfa\x0a\xbe\xa2\xaf\xe4\x9b\xfa\x66\xbe\xb9\x6f\xe1\x5b\xfa\x56\xfe\x11"
      "\xdf\xda\x3f\xea\xdb\xf8\xb6\xbe\x9d\x7f\xcc\xb7\xf7\x8f\xfb\x0e\xfe\x09"
      "\x9f\xe4\x9f\xf4\x1d\xfd\x53\xbe\x93\x7f\xda\x77\xf6\xcf\xf8\x2e\xfe\x59"
      "\xdf\xd5\x3f\xe7\xbb\xf9\xee\xbe\x87\x7f\xde\xf7\xf4\x2f\xf8\x5e\xbe\xb7"
      "\x4f\xf6\x7d\x7c\x5f\xff\xa2\xef\xe7\xfb\xfb\x01\x7e\xa0\x1f\xe4\x5f\xf2"
      "\x83\xfd\xcb\x7e\x88\x7f\xc5\xa7\xf8\xa1\x7e\x98\x7f\xd5\x0f\xf7\xaf\xf9"
      "\x11\xfe\x75\x3f\xd2\x8f\xf2\xa3\xfd\x1b\x7e\x8c\x1f\xeb\xc7\xf9\xf1\x7e"
      "\x82\x9f\xe8\x53\xfd\x9b\x7e\x92\x9f\xec\xa7\xf8\xb7\xfc\x54\x3f\xcd\x4f"
      "\xf7\x33\x7c\x9a\x9f\xe9\x67\xf9\xb7\xfd\x6c\x3f\xc7\xcf\xf5\xef\xf8\x79"
      "\xfe\x5d\x3f\xdf\x2f\xf0\x0b\xfd\x22\x9f\xee\xdf\xf3\x8b\xfd\x12\x9f\xe1"
      "\xdf\xf7\x4b\xfd\x07\x3e\xd3\x2f\xf3\xcb\xfd\x0a\x0f\x31\xab\xfc\x6a\xbf"
      "\xc6\xaf\xf5\xeb\xfc\x7a\xbf\xc1\x6f\xf4\x9b\xfc\x66\xbf\xc5\x6f\xf5\x1f"
      "\xfa\x6d\x7e\xbb\xdf\xe1\x77\xfa\x5d\x7e\xb7\xdf\xe3\x3f\xf2\x7b\xfd\xc7"
      "\x7e\x9f\xff\xc4\xef\xf7\x9f\xfa\x03\xfe\x6f\xfe\xa0\xff\xcc\x1f\xf2\x9f"
      "\xfb\xc3\xfe\x0b\x7f\xc4\x7f\xe9\x8f\xfa\xaf\xfc\x31\xff\xb5\x3f\xee\xbf"
      "\xf1\x27\xfc\x49\x7f\xca\x7f\xeb\x4f\xfb\xef\xfc\x19\x7f\xd6\x9f\xf3\xdf"
      "\xfb\xf3\xfe\x07\x7f\xc1\xff\xe8\x2f\x5e\xfe\x9b\xb5\x84\x2b\x74\x21\x9d"
      "\x31\xc6\x18\x63\xec\xff\x04\xf9\x07\xf7\xf7\xf9\x6f\x7e\x26\x2e\x6d\x59"
      "\xfa\x02\xc0\xd5\xdb\x0b\x1e\xfe\x75\xcd\x8d\xf9\x7e\x5e\xf7\x17\xf1\xed"
      "\x23\x00\xf0\x64\xef\xae\x0f\x5e\xfa\x76\x23\xb9\x7a\xf5\xe4\xe4\xe4\x4b"
      "\x8f\xcd\x94\x10\x14\x5d\x00\x00\x91\xcb\xf9\x39\xe0\x72\xbc\x0c\xda\xc1"
      "\xe3\x90\x04\x6d\xa1\xcc\x7f\xdb\x5f\x7f\xd1\xfd\x3c\x5d\xaa\xff\xcb\xf6"
      "\xeb\xfa\xd1\x5b\x00\x72\xff\x97\x9c\x18\xb8\x1c\x5f\xae\x7f\xd3\xef\xd4"
      "\x1f\x3b\xef\x0f\xeb\x2f\x00\x48\x28\x7a\x39\x27\x17\x5c\x8e\x2f\xd7\x2f"
      "\xfb\x3b\xf5\xf3\xb7\xfe\x83\xfa\xb9\x3e\x4b\x05\x68\xf3\x5f\x72\x62\xe1"
      "\x72\x7c\xb9\x7e\x22\x3c\x0a\x4f\x41\xd2\x1f\x0d\xf4\x67\x07\xfe\xd4\xa3"
      "\x18\x63\x8c\x31\xc6\x18\x63\x8c\xfd\xc7\xe8\x2f\x2a\x75\xfe\xa3\xf3\xdb"
      "\xac\xf3\xf3\x78\x75\x39\x27\x27\x5c\x8e\xff\xe8\xfc\xfc\x27\x7f\xee\x9c"
      "\x94\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\xff\x24\xcf\x74\xef\xf1\xc4\x23"
      "\x49\x49\x6d\x3b\x5f\xa9\x05\xc0\x95\x7c\x76\x5e\xfc\x99\x45\x8e\x7f\x8f"
      "\x36\xfe\xc3\x16\xf2\xdf\xa3\x8d\xdf\x5b\x5c\xe9\x77\x26\xc6\x18\x63\x8c"
      "\x31\xc6\xd8\x5f\xed\xf2\x41\xff\x95\xee\x84\x31\xc6\x18\x63\x8c\x31\xc6"
      "\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c"
      "\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\xcb\xbe\xfe\x15\xff"
      "\x4e\xec\x4a\xef\x23\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31"
      "\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63"
      "\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\xc6\x18\x63\x8c\x31\x76"
      "\xa5\xfd\xbf\x00\x00\x00\xff\xff\x44\xbb\x1e\x1a",
      5448);
  syz_mount_image(
      /*fs=*/0x2000000000c0, /*dir=*/0x2000000002c0,
      /*flags=MS_STRICTATIME|MS_RELATIME|MS_NOSUID|MS_DIRSYNC*/ 0x1200082,
      /*opts=*/0x200000000500, /*chdir=*/1, /*size=*/0x1548,
      /*img=*/0x200000000840);
  //  mount$incfs arguments: [
  //    src: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {69 6e 63 72 65 6d 65 6e 74 61 6c 2d 66 73 00} (length 0xf)
  //    }
  //    flags: mount_flags = 0xc002 (8 bytes)
  //    opts: nil
  //  ]
  memcpy((void*)0x2000000007c0, ".\000", 2);
  memcpy((void*)0x200000000800, "./bus\000", 6);
  memcpy((void*)0x200000000000, "incremental-fs\000", 15);
  syscall(__NR_mount, /*src=*/0x2000000007c0ul, /*dst=*/0x200000000800ul,
          /*type=*/0x200000000000ul,
          /*flags=MS_REC|MS_SILENT|MS_NOSUID*/ 0xc002ul, /*opts=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*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=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}