// https://syzkaller.appspot.com/bug?id=02d05d2e5d8d4c9fc6797292dd669220604e6406
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/futex.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 void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, max_destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

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

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

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

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

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

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 5; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0));
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

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

uint64_t r[1] = {0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    //  syz_mount_image$udf arguments: [
    //    fs: ptr[in, buffer] {
    //      buffer: {75 64 66 00} (length 0x4)
    //    }
    //    dir: ptr[in, buffer] {
    //      buffer: {2e 02 00} (length 0x3)
    //    }
    //    flags: mount_flags = 0x4010 (8 bytes)
    //    opts: ptr[inout, array[ANYUNION]] {
    //      array[ANYUNION] {
    //        union ANYUNION {
    //          ANYBLOB: buffer: {6e 6f 76 72 73 2c 00 51 6d c1 04 00 00 00 5f
    //          fd 5f a7 6c 9b e9 54 1b 6d 02 ff 20 df 2d a9 df b5 b7 41 d6 7f
    //          b9 48 d1 9d 9b 21 fe e5 06 16 e1 92 91 f8 48 cf 98 81 6c 47 74
    //          aa 31 96 86 c0 e4 5a 1e 65 de 31 6e 67 8c 7c 47 61 88 bb a0 d7
    //          25 d8 b3 57 18 da e5 4c 63 d7 95 a2 5b 62 13 5b ed e1 7e db 03
    //          3e 07 00 00 00 00 00 00 00 cb be 8f b1 00 3c c7 c2 c4 bd bc 7b
    //          b7 67 2d a6 1f 59 87 1b e8 b7 1e e3 91 b5 48 60 f0 c3 c3 21 f3
    //          5d 18 0a d0 bc 0b 30 de 00 20 ea 5f 69 c9 3d b4 c4 fd 44 69 6c
    //          00 5c f8 b7 80 f4 a4 fb d6 b3 31 74 69 f3 92 03 00 00 00 00 00
    //          09 90 56 db bf 9b 2f 52 19 98 86 80 31 79 f2 6f 7b 73 4a ee c1
    //          07 30 9d 88 a1 00 6b 0f 43 19 3d 41 62 84 f7 46 f7 d7 d3 cc f7
    //          08 3a 44 10 b8 48 14 1e 6e fc 4d 0b f8 70 19 7a 16 ab 2b 49 69
    //          43 e8 b0 b6 ff 09 f3 0f 35 7d 6b f5 2e 18 a1 51 37 eb 35 b8 33
    //          ff 2d e2 d5 f2 e4 62 45 9b 6e e5 c4 ef 34 26 ab 12 f9 21 af 6b
    //          17 7e c1 da 4f 6b 32 87 6f 51 59 ee 8a 30 8f e9 9b 08 00 00 00
    //          00 04 17 62 0f 92 50 58 13 65 01 00 00 a1 f2 83 4a d9 a0 fa 9b
    //          00 d5 aa fa 19 24 65 e5 7e e5 f7 ad 88 b6 d9 a4 fd 6d 98 98 fe
    //          ac de ad 80 1d 09 8e 29 a4 36 61 a2 c5 88 02 97 c0 01 37 84 71
    //          35 99 fe 28 fb 60 10 4b 95 6c 45 1d b8 8d a9 31 6c b8 f6 58 42
    //          9e 0f 46 da c8 9c fa 79 00 00 00 00 00 dc c3 a7 bf cc 17 ed 93
    //          a8 13 88 ca d5 89 12 ec 61 53 3a 71 43 8b 52 a5 fa ac f0 f9 ff
    //          ff ff ff ff ff ff f8 1b 49 00 20 cd 31 a9 71 98 f9 d1 1a 1e 06
    //          af b5 db ab 1a a6 c5 18 91 66 c4 48 91 8a 25 38 52 e7 f8 39 6e
    //          2f 52 b5 03 e7 2d 9a 5d fb 47 4e c5 bf a4 93 48 4e 0c c8 94 c1
    //          62 26 0d 21 b6 a0 72 a6 7b a6 b1 a8 25 13 8e 7a 7b 46 10 3b 68
    //          5d 90 36 f7 32 89 e7 d8 26 fe 3d ef 62 4a 73 a4 e0 7a 2b 42 08
    //          f7 6b d2 00 25 d4 60 91 08 cb ad 21 b9 ca a1 5b 14 db d3 6c 61
    //          57 36 cd eb b1 81 d9 ca dc 4c 2f 1e 13 1b 10 bb a5 35 86 d1 1d
    //          83 ca 51 a6 2f d5 30 47 75 31 bf 33 3b d2 4d eb 03 b7 28 01 53
    //          a8 9c bc 87 ed 3b 7c 65 8a 0a 05 00 00 00 00 00 00 00 1b 61 e9
    //          5b 17 75 b8 3e 81 6e 46 7e 35 e0 f1 69 cb c7 45 9c dc 6d f2 03
    //          f3 ff 00 42 df eb 55 a8 a6 0f 04 74 e6 cc fc 66 c1 04 18 f6 0b
    //          57 2e 5a 51 52 ba e6 ca 3e 9a ee ae 08 cb 9e 43 ef be d5 5d 9d
    //          b6 42 9e 55 c0 32 c0 57 95 88 15 9b c8 e0 76 0c 09 08 07 01 31
    //          9d e3 8c bb 41 ee 37 57 72 00 00 00 00 b5 89 31 df 98 c8 ab a3
    //          66 31 6c 0c b3 df 8e 04 00 00 00 00 00 00 00 80 e6 02 06 67 73
    //          06 17 a9 6a 78 53 b0 c2 d2 58 13 b8 66 8b 7a 16 db 5c 0a 13 f8
    //          91 89 de 35 fe dd 9d fe e0 d3 f2 35 b8 1d 4b 51 89 fb b4 99 4e
    //          6d 3c 78 e9 98 28 19 e0 84 f3 cd 47 83 d1 40 6f ad 42 fe 5b 25
    //          c9 a9 18 95 ee 6c 93 df 43 ed f2 95 52 a1 d5 3f c6 1d a3 62 44
    //          e9 72 3e fe e8 43 c9 ae 20 7c db 6e 1d 18 eb b1 6e 1a 3c 5a a5
    //          06 95 24 a5 80 89 de 2c df 5e 23 96 06 00 bd ed a6 1a 35 c5 24
    //          54 69 7a 5a b4 db d4 30 53 73 01 84 3a 17 5f 1a ae aa 7f 7a 6a
    //          62 a3 9a d4 11 05 a0 51 98 70 8f 8d bd e6 d7 91 81 72 7c 96 9a
    //          db 41 49 1d 9d c6 78 7b 53 f5 af 00 00 00 00 00 00 00 00 00 00
    //          00 00 00 00 00 00 a1 10 d3 76 30 07 3b 32 1f ce 61 4c e6 5c 1e
    //          58 0f 86 aa 38 e4 1e 5e eb c5 02 0e 55 49 00 21 5c a1 a8 00 00
    //          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //          74 a5 19 d4 f2 23 0e 71 7c 22 1e a0 5a 50 fa 69 73 e3 3b cc 4c
    //          3d 7f 2e 89 07 dd 14 44 b9 be b4 ab d9 f8 ae 57 74} (length
    //          0x410)
    //        }
    //      }
    //    }
    //    chdir: int8 = 0x1 (1 bytes)
    //    size: len = 0xc3b (8 bytes)
    //    img: ptr[in, buffer] {
    //      buffer: (compressed buffer with length 0xc3b)
    //    }
    //  ]
    //  returns fd_dir
    memcpy((void*)0x200000000100, "udf\000", 4);
    memcpy((void*)0x200000000140, ".\002\000", 3);
    memcpy(
        (void*)0x200000000640,
        "\x6e\x6f\x76\x72\x73\x2c\x00\x51\x6d\xc1\x04\x00\x00\x00\x5f\xfd\x5f"
        "\xa7\x6c\x9b\xe9\x54\x1b\x6d\x02\xff\x20\xdf\x2d\xa9\xdf\xb5\xb7\x41"
        "\xd6\x7f\xb9\x48\xd1\x9d\x9b\x21\xfe\xe5\x06\x16\xe1\x92\x91\xf8\x48"
        "\xcf\x98\x81\x6c\x47\x74\xaa\x31\x96\x86\xc0\xe4\x5a\x1e\x65\xde\x31"
        "\x6e\x67\x8c\x7c\x47\x61\x88\xbb\xa0\xd7\x25\xd8\xb3\x57\x18\xda\xe5"
        "\x4c\x63\xd7\x95\xa2\x5b\x62\x13\x5b\xed\xe1\x7e\xdb\x03\x3e\x07\x00"
        "\x00\x00\x00\x00\x00\x00\xcb\xbe\x8f\xb1\x00\x3c\xc7\xc2\xc4\xbd\xbc"
        "\x7b\xb7\x67\x2d\xa6\x1f\x59\x87\x1b\xe8\xb7\x1e\xe3\x91\xb5\x48\x60"
        "\xf0\xc3\xc3\x21\xf3\x5d\x18\x0a\xd0\xbc\x0b\x30\xde\x00\x20\xea\x5f"
        "\x69\xc9\x3d\xb4\xc4\xfd\x44\x69\x6c\x00\x5c\xf8\xb7\x80\xf4\xa4\xfb"
        "\xd6\xb3\x31\x74\x69\xf3\x92\x03\x00\x00\x00\x00\x00\x09\x90\x56\xdb"
        "\xbf\x9b\x2f\x52\x19\x98\x86\x80\x31\x79\xf2\x6f\x7b\x73\x4a\xee\xc1"
        "\x07\x30\x9d\x88\xa1\x00\x6b\x0f\x43\x19\x3d\x41\x62\x84\xf7\x46\xf7"
        "\xd7\xd3\xcc\xf7\x08\x3a\x44\x10\xb8\x48\x14\x1e\x6e\xfc\x4d\x0b\xf8"
        "\x70\x19\x7a\x16\xab\x2b\x49\x69\x43\xe8\xb0\xb6\xff\x09\xf3\x0f\x35"
        "\x7d\x6b\xf5\x2e\x18\xa1\x51\x37\xeb\x35\xb8\x33\xff\x2d\xe2\xd5\xf2"
        "\xe4\x62\x45\x9b\x6e\xe5\xc4\xef\x34\x26\xab\x12\xf9\x21\xaf\x6b\x17"
        "\x7e\xc1\xda\x4f\x6b\x32\x87\x6f\x51\x59\xee\x8a\x30\x8f\xe9\x9b\x08"
        "\x00\x00\x00\x00\x04\x17\x62\x0f\x92\x50\x58\x13\x65\x01\x00\x00\xa1"
        "\xf2\x83\x4a\xd9\xa0\xfa\x9b\x00\xd5\xaa\xfa\x19\x24\x65\xe5\x7e\xe5"
        "\xf7\xad\x88\xb6\xd9\xa4\xfd\x6d\x98\x98\xfe\xac\xde\xad\x80\x1d\x09"
        "\x8e\x29\xa4\x36\x61\xa2\xc5\x88\x02\x97\xc0\x01\x37\x84\x71\x35\x99"
        "\xfe\x28\xfb\x60\x10\x4b\x95\x6c\x45\x1d\xb8\x8d\xa9\x31\x6c\xb8\xf6"
        "\x58\x42\x9e\x0f\x46\xda\xc8\x9c\xfa\x79\x00\x00\x00\x00\x00\xdc\xc3"
        "\xa7\xbf\xcc\x17\xed\x93\xa8\x13\x88\xca\xd5\x89\x12\xec\x61\x53\x3a"
        "\x71\x43\x8b\x52\xa5\xfa\xac\xf0\xf9\xff\xff\xff\xff\xff\xff\xff\xf8"
        "\x1b\x49\x00\x20\xcd\x31\xa9\x71\x98\xf9\xd1\x1a\x1e\x06\xaf\xb5\xdb"
        "\xab\x1a\xa6\xc5\x18\x91\x66\xc4\x48\x91\x8a\x25\x38\x52\xe7\xf8\x39"
        "\x6e\x2f\x52\xb5\x03\xe7\x2d\x9a\x5d\xfb\x47\x4e\xc5\xbf\xa4\x93\x48"
        "\x4e\x0c\xc8\x94\xc1\x62\x26\x0d\x21\xb6\xa0\x72\xa6\x7b\xa6\xb1\xa8"
        "\x25\x13\x8e\x7a\x7b\x46\x10\x3b\x68\x5d\x90\x36\xf7\x32\x89\xe7\xd8"
        "\x26\xfe\x3d\xef\x62\x4a\x73\xa4\xe0\x7a\x2b\x42\x08\xf7\x6b\xd2\x00"
        "\x25\xd4\x60\x91\x08\xcb\xad\x21\xb9\xca\xa1\x5b\x14\xdb\xd3\x6c\x61"
        "\x57\x36\xcd\xeb\xb1\x81\xd9\xca\xdc\x4c\x2f\x1e\x13\x1b\x10\xbb\xa5"
        "\x35\x86\xd1\x1d\x83\xca\x51\xa6\x2f\xd5\x30\x47\x75\x31\xbf\x33\x3b"
        "\xd2\x4d\xeb\x03\xb7\x28\x01\x53\xa8\x9c\xbc\x87\xed\x3b\x7c\x65\x8a"
        "\x0a\x05\x00\x00\x00\x00\x00\x00\x00\x1b\x61\xe9\x5b\x17\x75\xb8\x3e"
        "\x81\x6e\x46\x7e\x35\xe0\xf1\x69\xcb\xc7\x45\x9c\xdc\x6d\xf2\x03\xf3"
        "\xff\x00\x42\xdf\xeb\x55\xa8\xa6\x0f\x04\x74\xe6\xcc\xfc\x66\xc1\x04"
        "\x18\xf6\x0b\x57\x2e\x5a\x51\x52\xba\xe6\xca\x3e\x9a\xee\xae\x08\xcb"
        "\x9e\x43\xef\xbe\xd5\x5d\x9d\xb6\x42\x9e\x55\xc0\x32\xc0\x57\x95\x88"
        "\x15\x9b\xc8\xe0\x76\x0c\x09\x08\x07\x01\x31\x9d\xe3\x8c\xbb\x41\xee"
        "\x37\x57\x72\x00\x00\x00\x00\xb5\x89\x31\xdf\x98\xc8\xab\xa3\x66\x31"
        "\x6c\x0c\xb3\xdf\x8e\x04\x00\x00\x00\x00\x00\x00\x00\x80\xe6\x02\x06"
        "\x67\x73\x06\x17\xa9\x6a\x78\x53\xb0\xc2\xd2\x58\x13\xb8\x66\x8b\x7a"
        "\x16\xdb\x5c\x0a\x13\xf8\x91\x89\xde\x35\xfe\xdd\x9d\xfe\xe0\xd3\xf2"
        "\x35\xb8\x1d\x4b\x51\x89\xfb\xb4\x99\x4e\x6d\x3c\x78\xe9\x98\x28\x19"
        "\xe0\x84\xf3\xcd\x47\x83\xd1\x40\x6f\xad\x42\xfe\x5b\x25\xc9\xa9\x18"
        "\x95\xee\x6c\x93\xdf\x43\xed\xf2\x95\x52\xa1\xd5\x3f\xc6\x1d\xa3\x62"
        "\x44\xe9\x72\x3e\xfe\xe8\x43\xc9\xae\x20\x7c\xdb\x6e\x1d\x18\xeb\xb1"
        "\x6e\x1a\x3c\x5a\xa5\x06\x95\x24\xa5\x80\x89\xde\x2c\xdf\x5e\x23\x96"
        "\x06\x00\xbd\xed\xa6\x1a\x35\xc5\x24\x54\x69\x7a\x5a\xb4\xdb\xd4\x30"
        "\x53\x73\x01\x84\x3a\x17\x5f\x1a\xae\xaa\x7f\x7a\x6a\x62\xa3\x9a\xd4"
        "\x11\x05\xa0\x51\x98\x70\x8f\x8d\xbd\xe6\xd7\x91\x81\x72\x7c\x96\x9a"
        "\xdb\x41\x49\x1d\x9d\xc6\x78\x7b\x53\xf5\xaf\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa1\x10\xd3\x76\x30\x07\x3b"
        "\x32\x1f\xce\x61\x4c\xe6\x5c\x1e\x58\x0f\x86\xaa\x38\xe4\x1e\x5e\xeb"
        "\xc5\x02\x0e\x55\x49\x00\x21\x5c\xa1\xa8\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x74"
        "\xa5\x19\xd4\xf2\x23\x0e\x71\x7c\x22\x1e\xa0\x5a\x50\xfa\x69\x73\xe3"
        "\x3b\xcc\x4c\x3d\x7f\x2e\x89\x07\xdd\x14\x44\xb9\xbe\xb4\xab\xd9\xf8"
        "\xae\x57\x74",
        1040);
    memcpy(
        (void*)0x200000002580,
        "\x78\x9c\xec\xdd\x5f\x68\x5c\xe9\x79\x3f\xf0\xe7\xd5\x91\xd6\x92\xf7"
        "\x97\x5f\x66\x37\x1b\xe7\x8f\x73\x31\xb0\x81\x6c\xbd\xd9\x45\xb2\xbc"
        "\x6b\x15\x6f\x40\x8e\x15\x91\x05\xe3\x35\x2b\x2b\x17\x0b\x05\x8d\x2d"
        "\xd9\x1d\x56\x9a\x91\x25\xb9\x78\x43\x09\x2e\x24\x94\x90\xb6\xb8\xe4"
        "\x22\x97\x35\x6c\x02\xbd\xab\xaf\x5a\x58\x1a\x70\xaf\xb6\x21\x04\x44"
        "\xaf\x4a\x2f\x8a\xdb\x6e\xcc\xf6\x6e\x12\x9a\xb6\xf4\x22\x2a\x67\xe6"
        "\x1d\x69\xa4\xb5\x2d\x75\x6d\x4b\xb2\xf7\xf3\x31\xf6\xf7\xcc\x99\xe7"
        "\xcc\xbc\x67\x56\xcf\xe8\xcc\xec\xbc\x73\x02\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x88\xf8\xfa\x37\x4e\x0e\x8f\xa4\xfb"
        "\x14\x0c\xec\xe2\x60\x00\x80\x5d\x71\x66\xea\xcd\xe1\xd1\xfb\xfd\xfe"
        "\x07\x00\x9e\x38\xe7\xb6\x7b\xfd\x0f\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x11\x29\x8a\xf8\x6e\xa4\x78\xf7\x07\xad\x34\xd3\xbe\xdc\x31\x78\xba"
        "\xde\xb8\x72\x75\x7a\x62\xf2\xee\x9b\x0d\xa5\x48\xd1\x17\x45\xbb\xbe"
        "\xfc\x3b\x38\x72\x74\xf4\xd8\x2b\xaf\x1e\x1f\xeb\xe6\xfd\xb7\x7f\xd8"
        "\xbe\x10\x6f\x4c\x9d\x3b\x59\x3d\xd5\x5c\x58\x5c\x9a\x5b\x5e\x9e\x9b"
        "\xad\x4e\x37\xea\x17\x9a\xb3\x73\x3b\xbe\x85\x07\xdd\x7e\xab\x23\xed"
        "\x07\xa0\xba\xf0\xf6\x95\xd9\x8b\x17\x97\xab\x47\x5f\x1e\xdd\x74\xf5"
        "\xd5\xca\x9d\x03\x4f\x1f\xaa\x9c\x18\x3b\x3c\xfa\x56\xb7\x76\x7a\x62"
        "\x72\x72\xaa\xa7\xa6\x7f\xe0\x63\xdf\xfb\x47\xa4\x87\x77\x53\x3c\x41"
        "\x9e\x8a\x22\xbe\x19\x29\xde\x7f\xe9\xc3\x54\x8b\x88\xbe\x78\xf0\x5e"
        "\xd8\xe6\xb9\xe3\x51\x1b\x8a\xfe\xb2\xff\xda\x3b\x31\x3d\x31\xd9\xde"
        "\x91\xf9\x7a\xad\xb1\x52\x5e\x99\xfa\x72\x55\x7f\x44\xa5\x67\xa3\xf1"
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        "\x53\x8b\xb5\xa5\xda\xf9\xf9\xb9\xea\xd9\xda\xd2\x4a\x7d\xa5\xde\x6c"
        "\xa4\xbe\xce\x68\xd3\xcf\xfe\x23\x2a\xd1\x17\x63\x29\x62\x31\x22\x5a"
        "\xc5\x5e\x0f\x9e\xfd\x66\x20\x8a\xf8\x9b\x48\x71\xe7\xd7\xad\xf4\xaf"
        "\x45\x44\xd1\xed\x83\x17\xcf\x4c\xbd\x39\x3c\xba\xfd\x0d\xf4\xef\xc2"
        "\x20\xef\x71\xb7\x95\x22\x62\x35\x1e\x83\x9e\x85\x7d\xea\x40\x14\xf1"
        "\x5c\xa4\xf8\xe1\xcc\x70\xfc\x5b\xd1\xe9\xab\x76\xdb\x7c\x10\xf1\x95"
        "\x32\x5f\x8b\xb8\x5c\xe6\xad\x14\xd7\xf3\xe5\x54\x3e\x41\x8c\x45\xfc"
        "\xca\xef\x13\x78\xac\xf5\x47\x11\x67\x23\x45\x33\xb5\xd2\x07\x45\xee"
        "\xfd\xf6\x71\xe5\xe9\x6f\x55\x5f\x6f\x5c\x6c\xf6\xd4\x76\x8f\x2b\x1f"
        "\xfb\xd7\x07\xbb\xc9\xb1\x09\xfb\xd8\x60\x14\xf1\xcb\xf6\x11\x7f\x2b"
        "\xfd\xd2\xef\x73\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd8\xe7\x8a"
        "\xf8\x5a\xa4\xb8\xb9\xf0\x42\x6a\xcf\x0f\x5d\x9f\x53\x5a\x6f\x5c\xaa"
        "\x9e\xab\x9d\x9f\xef\x7c\xac\xbf\xfb\xd9\xff\x6a\xde\x6a\x6d\x6d\x6d"
        "\xad\x92\x3a\x59\xcd\x39\x9c\x73\x3c\xe7\xd9\x9c\x33\x39\x17\x73\x5e"
        "\xcb\x79\x3d\xe7\x8d\x9c\x37\x73\xde\xca\xb9\x9a\xf3\x76\xce\x56\xce"
        "\xe8\xcb\xf7\x9f\xb3\x9a\x73\x38\xe7\x78\xce\xb3\x39\x67\x72\x2e\xe6"
        "\xbc\x96\xf3\x7a\xce\x1b\x39\x6f\xe6\xbc\x95\x73\x35\xe7\xed\x9c\xad"
        "\x9c\xe1\x73\xd2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x3c\x22\x7d\x51\xc4\xf7\x22\xc5\x8f\x7e\xd3\x4a\x6b\x45\xe7\xfc"
        "\xb2\x33\xd1\xc9\xdb\xe6\xb9\xc2\x13\xed\x7f\x03\x00\x00\xff\xff\xf3"
        "\x71\x47\x5a",
        3131);
    syz_mount_image(/*fs=*/0x200000000100, /*dir=*/0x200000000140,
                    /*flags=MS_REC|MS_SYNCHRONOUS*/ 0x4010,
                    /*opts=*/0x200000000640, /*chdir=*/1, /*size=*/0xc3b,
                    /*img=*/0x200000002580);
    break;
  case 1:
    //  openat$cgroup_ro arguments: [
    //    fd: fd_cgroup (resource)
    //    file: ptr[in, buffer] {
    //      buffer: {62 6c 6b 69 6f 2e 74 68 72 6f 74 74 6c 65 2e 69 6f 5f 73 65
    //      72 76 69 63 65 64 00} (length 0x1b)
    //    }
    //    flags: const = 0x275a (4 bytes)
    //    mode: const = 0x0 (2 bytes)
    //  ]
    //  returns fd
    memcpy((void*)0x200000000040, "blkio.throttle.io_serviced\000", 27);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000040ul,
                  /*flags=*/0x275a, /*mode=*/0);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    //  write$binfmt_script arguments: [
    //    fd: fd_binfmt (resource)
    //    data: ptr[in, binfmt_script] {
    //      binfmt_script {
    //        hdr: buffer: {23 21 20} (length 0x3)
    //        bin: buffer: {} (length 0x0)
    //        args: array[binfmt_script_arg] {
    //        }
    //        nl: const = 0xa (1 bytes)
    //        data: buffer: {} (length 0x0)
    //      }
    //    }
    //    len: bytesize = 0x208e24b (8 bytes)
    //  ]
    memcpy((void*)0x200000000240, "#! ", 3);
    *(uint8_t*)0x200000000243 = 0xa;
    syscall(__NR_write, /*fd=*/r[0], /*data=*/0x200000000240ul,
            /*len=*/0x208e24bul);
    break;
  case 3:
    //  mmap arguments: [
    //    addr: VMA[0xb36000]
    //    len: len = 0xb36000 (8 bytes)
    //    prot: mmap_prot = 0x0 (8 bytes)
    //    flags: mmap_flags = 0x28011 (8 bytes)
    //    fd: fd (resource)
    //    offset: intptr = 0x0 (8 bytes)
    //  ]
    syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0xb36000ul,
            /*prot=*/0ul,
            /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
            /*fd=*/r[0], /*offset=*/0ul);
    break;
  case 4:
    //  ftruncate arguments: [
    //    fd: fd (resource)
    //    len: intptr = 0x13 (8 bytes)
    //  ]
    syscall(__NR_ftruncate, /*fd=*/r[0], /*len=*/0x13ul);
    break;
  }
}
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;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}