// https://syzkaller.appspot.com/bug?id=050d9b36a89f3bc42efe47dd9558faee19e8469d
// 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 < 8; 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 == 1 ? 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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    //  socketpair$unix arguments: [
    //    domain: const = 0x1 (8 bytes)
    //    type: unix_socket_type = 0x3 (8 bytes)
    //    proto: const = 0x0 (4 bytes)
    //    fds: ptr[out, unix_pair] {
    //      unix_pair {
    //        fd0: sock_unix (resource)
    //        fd1: sock_unix (resource)
    //      }
    //    }
    //  ]
    res = syscall(__NR_socketpair, /*domain=*/1ul,
                  /*type=SOCK_DGRAM|SOCK_STREAM*/ 3ul, /*proto=*/0,
                  /*fds=*/0x200000000080ul);
    if (res != -1) {
      r[0] = *(uint32_t*)0x200000000080;
      r[1] = *(uint32_t*)0x200000000084;
    }
    break;
  case 1:
    //  syz_mount_image$udf arguments: [
    //    fs: ptr[in, buffer] {
    //      buffer: {75 64 66 00} (length 0x4)
    //    }
    //    dir: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    flags: mount_flags = 0x14444 (8 bytes)
    //    opts: ptr[in, fs_options[udf_options]] {
    //      fs_options[udf_options] {
    //        elems: array[fs_opt_elem[udf_options]] {
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              iocharset: fs_opt["iocharset", stringnoz[codepages_names]] {
    //                name: buffer: {69 6f 63 68 61 72 73 65 74} (length 0x9)
    //                eq: const = 0x3d (1 bytes)
    //                val: buffer: {61 73 63 69 69} (length 0x5)
    //              }
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              noadinicb: buffer: {6e 6f 61 64 69 6e 69 63 62} (length 0x9)
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              adinicb: buffer: {61 64 69 6e 69 63 62} (length 0x7)
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              uid_forget: buffer: {75 69 64 3d 66 6f 72 67 65 74} (length
    //              0xa)
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              uid_forget: buffer: {75 69 64 3d 66 6f 72 67 65 74} (length
    //              0xa)
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              umask: fs_opt["umask", fmt[oct, int32]] {
    //                name: buffer: {75 6d 61 73 6b} (length 0x5)
    //                eq: const = 0x3d (1 bytes)
    //                val: int32 = 0x2 (23 bytes)
    //              }
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              longad: buffer: {6c 6f 6e 67 61 64} (length 0x6)
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              gid: fs_opt["gid", fmt[dec, gid]] {
    //                name: buffer: {67 69 64} (length 0x3)
    //                eq: const = 0x3d (1 bytes)
    //                val: gid (resource)
    //              }
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //          fs_opt_elem[udf_options] {
    //            elem: union udf_options {
    //              nostrict: buffer: {6e 6f 73 74 72 69 63 74} (length 0x8)
    //            }
    //            comma: const = 0x2c (1 bytes)
    //          }
    //        }
    //        common: array[fs_opt_elem[fs_options_common]] {
    //        }
    //        null: const = 0x0 (1 bytes)
    //      }
    //    }
    //    chdir: int8 = 0xfe (1 bytes)
    //    size: len = 0xc22 (8 bytes)
    //    img: ptr[in, buffer] {
    //      buffer: (compressed buffer with length 0xc22)
    //    }
    //  ]
    //  returns fd_dir
    memcpy((void*)0x200000000100, "udf\000", 4);
    memcpy((void*)0x200000000f00, "./file0\000", 8);
    memcpy((void*)0x200000000f40, "iocharset", 9);
    *(uint8_t*)0x200000000f49 = 0x3d;
    memcpy((void*)0x200000000f4a, "ascii", 5);
    *(uint8_t*)0x200000000f4f = 0x2c;
    memcpy((void*)0x200000000f50, "noadinicb", 9);
    *(uint8_t*)0x200000000f59 = 0x2c;
    memcpy((void*)0x200000000f5a, "adinicb", 7);
    *(uint8_t*)0x200000000f61 = 0x2c;
    memcpy((void*)0x200000000f62, "uid=forget", 10);
    *(uint8_t*)0x200000000f6c = 0x2c;
    memcpy((void*)0x200000000f6d, "uid=forget", 10);
    *(uint8_t*)0x200000000f77 = 0x2c;
    memcpy((void*)0x200000000f78, "umask", 5);
    *(uint8_t*)0x200000000f7d = 0x3d;
    sprintf((char*)0x200000000f7e, "%023llo", (long long)2);
    *(uint8_t*)0x200000000f95 = 0x2c;
    memcpy((void*)0x200000000f96, "longad", 6);
    *(uint8_t*)0x200000000f9c = 0x2c;
    memcpy((void*)0x200000000f9d, "gid", 3);
    *(uint8_t*)0x200000000fa0 = 0x3d;
    sprintf((char*)0x200000000fa1, "%020llu", (long long)0);
    *(uint8_t*)0x200000000fb5 = 0x2c;
    memcpy((void*)0x200000000fb6, "nostrict", 8);
    *(uint8_t*)0x200000000fbe = 0x2c;
    *(uint8_t*)0x200000000fbf = 0;
    memcpy(
        (void*)0x2000000002c0,
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        "\x2b\x26\x4e\x54\xbb\x8d\xdb\x4d\x5b\xa4\x32\x63\xb9\xb2\xa4\x98\x8a"
        "\x55\xb8\xab\x9a\x66\x1b\x40\x96\x89\x50\xcc\x2d\x00\x57\xe4\x4a\x5d"
        "\x98\x22\x09\x92\x6a\x64\x23\x6d\x98\x5e\x7a\xe8\x21\x40\x51\xf4\x90"
        "\x13\x81\xd6\x28\x90\xa2\x81\xd1\x14\x41\x8f\x6c\xeb\x02\xc9\xc5\x87"
        "\x22\xa7\x9e\x88\x16\x36\x82\xa2\x07\xb6\x08\x90\x53\xc0\x60\x66\xdf"
        "\x8a\x4b\x8a\xb2\x68\x53\xa4\x28\xfb\xfb\x6c\xea\x37\x3b\xf3\xde\xcc"
        "\x7b\x33\xeb\x19\x59\xd0\x9b\x17\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x40\xc4\xef\xbf\x7c\xe9\xcc\x73\xe9\x61\xb7\x02"
        "\x00\x38\x48\x57\xc6\xbf\x7c\xe6\xac\xe7\x3f\x00\x7c\xac\x5c\xf5\xff"
        "\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x70\xd8\xa5\x28\xe2"
        "\xf1\x48\x31\x7f\x65\x3d\x4d\x56\x9f\x3b\x06\x2e\xb7\x67\x6f\xdd\x9e"
        "\x18\x19\xdd\xb9\xda\xb1\x54\xd5\x3c\x52\x95\x2f\x7f\x06\x9e\x3b\x7b"
        "\xee\xfc\x17\x9e\x1f\xbe\xd0\xcd\xf7\xaf\xff\xa0\x3d\x19\xaf\x8e\x5f"
        "\xbd\x54\x7f\x69\xee\xe6\xfc\x42\x6b\x71\xb1\x35\x5d\x9f\x98\x6d\x4f"
        "\xcd\x4d\xb7\x76\xbd\x87\xbd\xd6\xdf\x6e\xa8\x3a\x01\xf5\x9b\xaf\xdd"
        "\x9a\xbe\x7e\x7d\xb1\x7e\xf6\xd9\x73\x5b\x36\xdf\x1e\x7c\xaf\xff\xb1"
        "\x93\x83\x17\x87\x9f\x3e\xfd\x54\xb7\xec\xc4\xc8\xe8\xe8\x78\x4f\x99"
        "\x5a\xdf\x87\x3e\xfa\x5d\xee\x35\xc2\xe3\x68\x14\x71\x3a\x52\x3c\xf3"
        "\xdd\x1f\xa7\x66\x44\x14\xb1\xf7\x73\x71\x9f\xef\xce\x7e\x3b\x56\x75"
        "\x62\xa8\xea\xc4\xc4\xc8\x68\xd5\x91\x99\x76\x73\x76\xa9\xdc\x38\xd6"
        "\x3d\x11\x45\x44\xbd\xa7\x52\xa3\x7b\x8e\x0e\xe0\x5a\xec\x49\x23\x62"
        "\xb9\x6c\x7e\xd9\xe0\xa1\xb2\x7b\xe3\xf3\xcd\x85\xe6\xb5\x99\x56\x7d"
        "\xac\xb9\xb0\xd4\x5e\x6a\xcf\xcd\x8e\xa5\x4e\x6b\xcb\xfe\xd4\xa3\x88"
        "\x0b\x29\x62\x25\x22\xd6\xfa\xef\xde\x5d\x5f\x14\x51\x8b\x14\xdf\x3e"
        "\xb1\x9e\xae\x45\xc4\x91\xee\x79\xf8\x7c\x35\x30\xf8\xde\xed\x28\xf6"
        "\xb1\x8f\xbb\x50\xb6\xb3\xde\x17\xb1\x52\x3c\x02\xd7\xec\x10\xeb\x8f"
        "\x22\x5e\x89\x14\x3f\x79\xbb\x88\xa9\xf2\x9c\xe5\x9f\xf8\x5c\xc4\x2b"
        "\x65\x7e\x3f\xe2\xcd\x32\x5f\x8c\x48\xe5\x17\xe3\x7c\xc4\xbb\x3b\x7c"
        "\x8f\x78\x34\xd5\xa2\x88\xbf\x28\xaf\xff\xc5\xf5\x34\x1d\x11\x1b\x27"
        "\x3a\xeb\x47\xeb\x97\xbf\x52\xff\xd2\xec\xf5\xb9\x9e\xb2\xdd\xfb\xca"
        "\x23\xff\x7c\x38\x48\x87\xfc\xde\x34\x10\x45\x34\xab\x3b\xfe\x7a\xfa"
        "\xf0\xbf\xd9\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0"
        "\x41\x3b\x16\x45\x3c\x19\x29\x5e\xfe\x8f\x3f\xae\xc6\x15\x47\x35\x2e"
        "\xfd\xc4\xc5\xe1\x3f\x18\xfc\xc5\xde\x31\xe3\x4f\xdc\x67\x3f\x65\xd9"
        "\x67\x23\x62\xb9\xd8\xdd\x98\xdc\xa3\x79\x08\xf1\x58\x1a\x4b\xe9\x21"
        "\x8f\x25\xfe\x38\x1b\x88\x22\xfe\x24\x8f\xff\xfb\xe6\xc3\x6e\x0c\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xc7\x5a\x11"
        "\x3f\x8a\x14\x2f\xbc\x73\x2a\xad\x44\xef\x9c\xe2\xed\xd9\x1b\xf5\xab"
        "\xcd\x6b\x33\x9d\x59\x61\xbb\x73\xff\x76\xe7\x4c\xdf\xd8\xd8\xd8\xa8"
        "\xa7\x4e\x36\x72\x4e\xe6\x5c\xce\xb9\x92\x73\x35\xe7\x5a\xce\x28\x72"
        "\xfd\x9c\x8d\x9c\x93\x39\x97\x73\xae\xe4\x5c\xcd\xb9\x96\x33\x8e\xe4"
        "\xfa\x39\x1b\x39\x27\x73\x2e\xe7\x5c\xc9\xb9\x9a\x73\x2d\x67\xd4\x72"
        "\xfd\x9c\x8d\x9c\x93\x39\x97\x73\xae\xe4\x5c\xcd\xb9\x96\x33\x0e\xc9"
        "\xdc\xbd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1f\x25"
        "\x45\x14\xf1\xb3\x48\xf1\xad\xaf\xad\xa7\x48\x11\xd1\x88\x98\x8c\x4e"
        "\xae\xf6\x77\xcb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
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        "\x8c\xc6\xa5\x9c\xcd\x2a\x6b\x8d\x6f\xde\xf7\x68\x69\x5f\xfa\xc0\x87"
        "\xd7\x97\x8a\xf8\x61\xa4\xe8\x1f\x78\xeb\xce\xd5\xc9\xd7\xbf\xaf\xf3"
        "\x69\xf3\x9a\xbd\xf9\xf5\xcd\x4f\xbf\x52\xeb\xe4\x91\xee\xc6\xc1\xf7"
        "\xfa\x1f\x3b\x79\xe2\xe2\xf0\xe8\xaf\x3d\x71\xaf\xe5\x1d\xaf\xfe\xd0"
        "\xe5\xf6\xec\xad\xdb\xf5\x89\x91\xd1\xd1\xf1\x9e\xd5\xb5\x7c\xf4\x4f"
        "\xf6\xac\x1b\xcc\xc7\x2d\x1e\x4c\xd7\x89\x88\xc5\xd7\xdf\x78\xad\x39"
        "\x33\xd3\x5a\xb0\xf0\xf1\x58\xa8\x75\x16\x6a\x71\x48\xda\x73\x50\x0b"
        "\xf9\x7e\x15\x87\xa5\x3d\xdb\x17\x1a\x87\xa3\x19\x9b\x0b\x0f\xf9\xc6"
        "\xc4\x81\x28\x9f\xff\xef\x46\x8a\xdf\x79\xe7\x3f\xbb\x0f\xfc\xee\xf3"
        "\xff\x17\x3a\x9f\xee\x3c\xe1\xe3\xa7\x7f\xba\xf9\xfc\x7f\x61\xfb\x8e"
        "\xf6\xe9\xf9\xff\x78\xcf\xba\x17\xf2\xef\x46\xfa\x6a\x11\x03\x4b\x37"
        "\xe7\xfb\x4e\x46\x0c\x2c\xbe\xfe\xc6\xe9\xf6\xcd\xe6\x8d\xd6\x8d\xd6"
        "\xec\xf9\x33\x67\xbe\x38\x3c\xfc\xc5\x73\x67\xfa\x8e\x46\x0c\x5c\x6f"
        "\xcf\xb4\x7a\x96\xf6\x7c\xaa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x0e\x56\x2a\xe2\xf7\x22\x45\xf3\x87\xeb\xa9\x1e\x11\xb7"
        "\xab\xf1\x5a\x83\x17\x87\x9f\x3e\xfd\xd4\x91\x38\x52\x8d\xb7\xda\x32"
        "\x6e\xeb\xd5\xf1\xab\x97\xea\x2f\xcd\xdd\x9c\x5f\x68\x2d\x2e\xb6\xa6"
        "\xeb\x13\xb3\xed\xa9\xb9\xe9\xd6\x6e\x0f\x37\x50\x0d\xf7\x9a\x18\x19"
        "\xdd\x97\xce\xdc\xd7\xb1\x7d\x6e\xff\xb1\x81\x97\xe6\xe6\x5f\x5f\x68"
        "\xdf\xf8\xa3\xa5\x1d\xb7\x1f\x1f\xb8\x74\x6d\x71\x69\xa1\x39\xb5\xf3"
        "\xe6\x38\x16\x45\x44\xa3\x77\xcd\x50\xd5\xe0\x89\x91\xd1\xaa\xd1\x33"
        "\xed\xe6\x6c\x55\x75\xec\x01\xbd\x4a\xa1\x2f\x15\xf1\x5f\x91\x62\xea"
        "\x7c\x3d\x7d\x36\xaf\xcb\xe3\xff\xb6\x8f\xf0\xdf\x32\xfe\x7f\x79\xfb"
        "\x8e\xf6\x69\xfc\xdf\x27\x7a\xd6\x95\xc7\x4c\xa9\x88\x9f\x46\x8a\xdf"
        "\xfe\xcb\x27\xe2\xb3\x55\x3b\x8f\xc7\x5d\xe7\x2c\x97\xfb\xdb\x48\x31"
        "\x74\xe1\x33\xb9\x5c\x1c\x2d\xcb\x75\xdb\xd0\x79\xaf\x40\x67\x64\x60"
        "\x59\xf6\xff\x22\xc5\x3f\xfe\x6c\x6b\xd9\xee\x78\xc8\xc7\x37\xcb\x3e"
        "\xb7\xeb\x13\xfb\x88\x28\xaf\xff\x89\x48\xf1\xbd\x3f\xff\x4e\xfc\x46"
        "\x5e\xb7\xf5\xfd\x0f\x3b\x5f\xff\xe3\xdb\x77\xb4\x4f\xd7\xff\x53\x3d"
        "\xeb\x8e\x6f\x79\x5f\xc1\x9e\xbb\x4e\xbe\xfe\xa7\x23\xc5\x8b\x8f\xbf"
        "\x15\xbf\x99\xd7\xbd\xdf\xfb\x3f\x8a\xd8\xd8\xd8\xf8\x46\xc4\xa9\x5c"
        "\xf8\xce\xfb\x39\xf6\xe9\xfa\x7f\xba\x67\xdd\x60\x74\x8e\xfb\x5b\x0f"
        "\xae\xfb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x8f\xac\xbe\x54\xc4\xdf"
        "\x45\x8a\xa7\x46\x6b\xe9\xf9\xbc\x6e\x37\x7f\xff\x6f\x7a\xfb\x8e\xf6"
        "\xe9\xef\x7f\xfd\x72\xcf\xba\xe9\x03\x9a\xaf\x68\xcf\x27\x15\x00\x00"
        "\x00\x00\x0e\x89\xbe\x54\xc4\x8f\x22\xc5\x8d\xa5\xb7\xee\x8c\xa1\xde"
        "\x3a\xfe\xbb\x67\xfc\xe7\xef\x6e\xce\xbd\x3e\x92\xb6\x6d\xad\xfe\x9c"
        "\xef\x97\xaa\xf7\x06\x3c\xc8\x3f\xff\xeb\x35\x98\x8f\x3b\xb9\xf7\x6e"
        "\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xa1"
        "\x92\x52\x11\xcf\xe7\xf9\xd4\x27\xef\x33\x9f\xfa\x6a\xa4\x78\xf9\x7f"
        "\x9e\xc9\xe5\xd2\xc9\xb2\x5c\x77\x1e\xf8\xc1\xea\xd7\x81\x2b\x73\xb3"
        "\xa7\x2f\xcd\xcc\xcc\x4d\x35\x97\x9a\xd7\x66\x5a\xf5\xf1\xf9\xe6\x54"
        "\xab\xac\xfb\xa9\x48\xb1\xfe\x37\x9f\xc9\x75\x8b\x6a\x7e\xf5\xee\x7c"
        "\xf3\x9d\x39\xde\x07\x36\xba\x73\xb1\x2f\x44\x8a\xd1\xbf\xef\x96\xed"
        "\xcc\xc5\xde\x9d\x9b\xbc\x33\x1f\x78\x67\x2e\xf6\xb2\xec\x27\x22\xc5"
        "\x7f\xff\xc3\xd6\xb2\xdd\x79\xac\x3f\xbd\x59\xf6\x6c\x59\xf6\xaf\x23"
        "\xc5\x57\xff\x79\xe7\xb2\x27\x37\xcb\x9e\x2b\xcb\x7e\x27\x52\xfc\xe0"
        "\xab\xf5\x6e\xd9\xe3\x65\xd9\xee\xfb\x51\x3b\xef\x24\x1d\xa8\xc5\x4c"
        "\xeb\xd9\xa9\xb9\x99\xbb\x5e\x85\x0a\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x1f\x54\x5f\x2a\xe2\xcf\x22\xc5\xff\xde"
        "\x5c\x89\xe5\x3c\xec\x3f\xcf\xff\xdf\x9d\x81\xbf\xd6\x2d\xfb\xe6\xd7"
        "\x7b\xe6\xfb\xdf\xe6\x76\x35\xcf\xff\x60\x35\xff\xff\xbd\x96\x3f\xcc"
        "\xfc\xff\x83\x0f\xac\xa7\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\xf0\xe8\x48\x51\xc4\x1b\x91\x62\xfe\xca\x7a\x5a\xed\x2f"
        "\x3f\x77\x0c\x5c\x6e\xcf\xde\xba\x3d\x31\x32\xba\x73\xb5\x63\xa9\xaa"
        "\x79\xa4\x2a\x5f\xfe\x0c\x3c\x77\xf6\xdc\xf9\x2f\x3c\x3f\x7c\xa1\x9b"
        "\xef\x5f\xff\x41\x7b\x32\x5e\x1d\xbf\x7a\xa9\xfe\xd2\xdc\xcd\xf9\x85"
        "\xd6\xe2\x62\x6b\xba\x3e\x31\xdb\x9e\x9a\x9b\x6e\xed\x7a\x0f\x7b\xad"
        "\xbf\x79\xea\x3a\x86\xaa\x13\x50\xbf\xf9\xda\xad\xe9\xeb\xd7\x17\xeb"
        "\x67\x9f\x3d\xb7\x65\xf3\xed\xc1\xf7\xfa\x1f\x3b\x39\x78\x71\xf8\xe9"
        "\xd3\x4f\x75\xcb\x4e\x8c\x8c\x8e\x8e\xf7\x94\xa9\xf5\x7d\x80\xa3\x7f"
        "\xa0\xc6\x6d\x3a\x1a\x45\xfc\x55\xa4\x78\xe6\xbb\x3f\x4e\xff\xd2\x1f"
        "\x51\xc4\xde\xcf\xc5\x7d\xbe\x3b\xfb\xed\x58\xd5\x89\xa1\xaa\x13\x13"
        "\x23\xa3\x55\x47\x66\xda\xcd\xd9\xa5\x72\xe3\x58\xf7\x44\x14\x11\xf5"
        "\x9e\x4a\x8d\xee\x39\x3a\x80\x6b\xb1\x27\x8d\x88\xe5\xb2\xf9\x65\x83"
        "\x87\xca\xee\x8d\xcf\x37\x17\x9a\xd7\x66\x5a\xf5\xb1\xe6\xc2\x52\x7b"
        "\xa9\x3d\x37\x3b\x96\x3a\xad\x2d\xfb\x53\x8f\x22\x2e\xa4\x88\x95\x88"
        "\x58\xeb\xbf\x7b\x77\x7d\x51\xc4\x6b\x91\xe2\xdb\x27\xd6\xd3\xbf\xf6"
        "\x47\x1c\xe9\x9e\x87\xcf\x5f\x19\xff\xf2\x99\xb3\xf7\x6e\x47\xb1\x8f"
        "\x7d\xdc\x85\xb2\x9d\xf5\xbe\x88\x95\xe2\x11\xb8\x66\x87\x58\x7f\x14"
        "\xf1\x4f\x91\xe2\x27\x6f\x9f\x8a\x7f\xeb\x8f\xa8\x45\xe7\x27\x3e\x17"
        "\xf1\x4a\x99\xdf\x8f\x78\xb3\xcc\x17\x23\x52\x8a\xd8\xf8\x46\xc4\xbb"
        "\x3b\x7c\x8f\x78\x34\xd5\xa2\x88\xff\x2f\xaf\xff\xc5\xf5\xf4\x76\x7f"
        "\x79\x3f\xe8\xde\x57\x2e\x7f\xa5\xfe\xa5\xd9\xeb\x73\x3d\x65\xbb\xf7"
        "\x95\x5d\x3d\x1f\x7e\xfd\xde\xc7\x7c\xe8\xcf\x87\x83\x74\xc8\xef\x4d"
        "\x03\x51\xc4\x0f\xaa\x3b\xfe\x7a\xfa\x77\xff\x5d\x03\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x1c\x22\x45\xfc\x6a\xa4\x78\xe1\x9d"
        "\x53\xa9\x1a\x1f\x7c\x67\x4c\x71\x7b\xf6\x46\xfd\x6a\xf3\xda\x4c\x67"
        "\x58\x5f\x77\xec\x5f\x77\xcc\xf4\xc6\xc6\xc6\x46\x3d\x75\xb2\x91\x73"
        "\x32\xe7\x72\xce\x95\x9c\xab\x39\xd7\x72\x46\x91\xeb\xe7\x6c\xe4\x9c"
        "\xcc\xb9\x9c\x73\x25\xe7\x6a\xce\xb5\x9c\x71\x24\xd7\xcf\xd9\xc8\x39"
        "\x99\x73\x39\xe7\x4a\xce\xd5\x9c\x6b\x39\xa3\x96\xeb\xe7\x6c\xe4\x9c"
        "\xcc\xb9\x9c\x73\x25\xe7\x6a\xce\xb5\x9c\x71\x48\xc6\xee\x01\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1f\x2d\x45\xf5\x4f"
        "\x8a\x6f\x7d\x6d\x3d\x6d\xf4\x77\xe6\x97\x9e\x8c\x4e\xae\x9a\x0f\xf4"
        "\x23\xef\xe7\x01\x00\x00\xff\xff\x37\x80\xfe\xbb",
        3106);
    syz_mount_image(
        /*fs=*/0x200000000100, /*dir=*/0x200000000f00,
        /*flags=MS_POSIXACL|MS_REC|MS_NODEV|MS_NOATIME|0x40*/ 0x14444,
        /*opts=*/0x200000000f40, /*chdir=*/0xfe, /*size=*/0xc22,
        /*img=*/0x2000000002c0);
    break;
  case 2:
    //  setrlimit arguments: [
    //    res: rlimit_type = 0x1 (8 bytes)
    //    rlim: ptr[in, rlimit] {
    //      rlimit {
    //        soft: intptr = 0xffffffffffffffff (8 bytes)
    //        hard: intptr = 0xffffffffffffffff (8 bytes)
    //      }
    //    }
    //  ]
    *(uint64_t*)0x200000000140 = -1;
    *(uint64_t*)0x200000000148 = -1;
    syscall(__NR_setrlimit, /*res=RLIMIT_FSIZE*/ 1ul,
            /*rlim=*/0x200000000140ul);
    break;
  case 3:
    //  truncate arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
    //    }
    //    len: intptr = 0x20fffffffc (8 bytes)
    //  ]
    memcpy((void*)0x200000000000, "./file1\000", 8);
    syscall(__NR_truncate, /*file=*/0x200000000000ul, /*len=*/0x20fffffffcul);
    break;
  case 4:
    //  openat arguments: [
    //    fd: fd_dir (resource)
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
    //    }
    //    flags: open_flags = 0x105042 (4 bytes)
    //    mode: open_mode = 0x189 (2 bytes)
    //  ]
    //  returns fd
    memcpy((void*)0x200000000180, "./file1\000", 8);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000180ul,
                  /*flags=O_SYNC|O_DIRECT|O_CREAT|O_RDWR*/ 0x105042,
                  /*mode=S_IXOTH|S_IXGRP|S_IWUSR|S_IRUSR*/ 0x189);
    if (res != -1)
      r[2] = res;
    break;
  case 5:
    //  mmap arguments: [
    //    addr: VMA[0x600000]
    //    len: len = 0x600000 (8 bytes)
    //    prot: mmap_prot = 0x27ffff7 (8 bytes)
    //    flags: mmap_flags = 0x4012011 (8 bytes)
    //    fd: fd (resource)
    //    offset: intptr = 0x0 (8 bytes)
    //  ]
    syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x600000ul,
            /*prot=PROT_GROWSUP|PROT_WRITE|PROT_READ|PROT_EXEC|0x7ffff0*/
            0x27ffff7ul,
            /*flags=MAP_UNINITIALIZED|MAP_NONBLOCK|MAP_LOCKED|MAP_FIXED|0x1*/
            0x4012011ul, /*fd=*/r[2], /*offset=*/0ul);
    break;
  case 6:
    //  sendmmsg$unix arguments: [
    //    fd: sock_unix (resource)
    //    mmsg: ptr[in, array[send_mmsghdr_un]] {
    //      array[send_mmsghdr_un] {
    //      }
    //    }
    //    vlen: len = 0x318 (8 bytes)
    //    f: send_flags = 0x0 (8 bytes)
    //  ]
    syscall(__NR_sendmmsg, /*fd=*/r[1], /*mmsg=*/0x2000000bd000ul,
            /*vlen=*/0x318ul, /*f=*/0ul);
    break;
  case 7:
    //  recvmmsg arguments: [
    //    fd: sock (resource)
    //    mmsg: ptr[in, array[recv_mmsghdr]] {
    //      array[recv_mmsghdr] {
    //        recv_mmsghdr {
    //          msg_hdr: recv_msghdr {
    //            msg_name: ptr[out, sockaddr_storage] {
    //              union sockaddr_storage {
    //                isdn: sockaddr_mISDN {
    //                  family: const = 0x22 (2 bytes)
    //                  dev: int8 = 0x0 (1 bytes)
    //                  channel: int8 = 0x0 (1 bytes)
    //                  sapi: int8 = 0x0 (1 bytes)
    //                  tei: int8 = 0x0 (1 bytes)
    //                }
    //              }
    //            }
    //            msg_namelen: len = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //            msg_iov: ptr[in, array[iovec[out, array[int8]]]] {
    //              array[iovec[out, array[int8]]] {
    //              }
    //            }
    //            msg_iovlen: len = 0x0 (8 bytes)
    //            msg_control: nil
    //            msg_controllen: bytesize = 0x0 (8 bytes)
    //            msg_flags: const = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //          }
    //          msg_len: int32 = 0x8d (4 bytes)
    //          pad = 0x0 (4 bytes)
    //        }
    //        recv_mmsghdr {
    //          msg_hdr: recv_msghdr {
    //            msg_name: ptr[out, sockaddr_storage] {
    //              union sockaddr_storage {
    //                hci: sockaddr_hci {
    //                  hci_family: const = 0x1f (2 bytes)
    //                  hci_dev: int16 = 0x0 (2 bytes)
    //                  hci_channel: bt_hci_chan = 0x0 (2 bytes)
    //                }
    //              }
    //            }
    //            msg_namelen: len = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //            msg_iov: ptr[in, array[iovec[out, array[int8]]]] {
    //              array[iovec[out, array[int8]]] {
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //              }
    //            }
    //            msg_iovlen: len = 0x0 (8 bytes)
    //            msg_control: nil
    //            msg_controllen: bytesize = 0x0 (8 bytes)
    //            msg_flags: const = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //          }
    //          msg_len: int32 = 0x86f7 (4 bytes)
    //          pad = 0x0 (4 bytes)
    //        }
    //        recv_mmsghdr {
    //          msg_hdr: recv_msghdr {
    //            msg_name: ptr[out, sockaddr_storage] {
    //              union sockaddr_storage {
    //                can: sockaddr_can {
    //                  can_family: const = 0x1d (2 bytes)
    //                  pad = 0x0 (2 bytes)
    //                  can_ifindex: ifindex_vcan (resource)
    //                  rx_id: const = 0x0 (4 bytes)
    //                  tx_id: const = 0x0 (4 bytes)
    //                }
    //              }
    //            }
    //            msg_namelen: len = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //            msg_iov: ptr[in, array[iovec[out, array[int8]]]] {
    //              array[iovec[out, array[int8]]] {
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //              }
    //            }
    //            msg_iovlen: len = 0x0 (8 bytes)
    //            msg_control: ptr[out, buffer] {
    //              buffer: (DirOut)
    //            }
    //            msg_controllen: bytesize = 0x0 (8 bytes)
    //            msg_flags: const = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //          }
    //          msg_len: int32 = 0xffff (4 bytes)
    //          pad = 0x0 (4 bytes)
    //        }
    //        recv_mmsghdr {
    //          msg_hdr: recv_msghdr {
    //            msg_name: ptr[out, sockaddr_storage] {
    //              union sockaddr_storage {
    //                generic: sockaddr_storage_generic {
    //                  sa_family: socket_domain = 0x0 (2 bytes)
    //                  sa_data: buffer: (DirOut)
    //                }
    //              }
    //            }
    //            msg_namelen: len = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //            msg_iov: ptr[in, array[iovec[out, array[int8]]]] {
    //              array[iovec[out, array[int8]]] {
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //              }
    //            }
    //            msg_iovlen: len = 0x0 (8 bytes)
    //            msg_control: ptr[out, buffer] {
    //              buffer: (DirOut)
    //            }
    //            msg_controllen: bytesize = 0x0 (8 bytes)
    //            msg_flags: const = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //          }
    //          msg_len: int32 = 0xa5 (4 bytes)
    //          pad = 0x0 (4 bytes)
    //        }
    //        recv_mmsghdr {
    //          msg_hdr: recv_msghdr {
    //            msg_name: ptr[out, sockaddr_storage] {
    //              union sockaddr_storage {
    //                l2tp6: sockaddr_l2tpip6 {
    //                  l2tp_family: const = 0xa (2 bytes)
    //                  l2tp_unused: const = 0x0 (2 bytes)
    //                  l2tp_flowinfo: int32be = 0x0 (4 bytes)
    //                  l2tp_addr: union ipv6_addr {
    //                    empty: ipv6_addr_empty {
    //                      a0: buffer: (DirOut)
    //                    }
    //                  }
    //                  l2tp_scope_id: int32 = 0x0 (4 bytes)
    //                  l2tp_conn_id: int32 = 0x0 (4 bytes)
    //                }
    //              }
    //            }
    //            msg_namelen: len = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //            msg_iov: ptr[in, array[iovec[out, array[int8]]]] {
    //              array[iovec[out, array[int8]]] {
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //                iovec[out, array[int8]] {
    //                  addr: ptr[out, buffer] {
    //                    buffer: (DirOut)
    //                  }
    //                  len: len = 0x0 (8 bytes)
    //                }
    //              }
    //            }
    //            msg_iovlen: len = 0x0 (8 bytes)
    //            msg_control: ptr[out, buffer] {
    //              buffer: (DirOut)
    //            }
    //            msg_controllen: bytesize = 0x0 (8 bytes)
    //            msg_flags: const = 0x0 (4 bytes)
    //            pad = 0x0 (4 bytes)
    //          }
    //          msg_len: int32 = 0x10 (4 bytes)
    //          pad = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    vlen: len = 0x10133 (8 bytes)
    //    f: recv_flags = 0x2 (8 bytes)
    //    timeout: nil
    //  ]
    *(uint64_t*)0x200000003200 = 0x2000000000c0;
    *(uint32_t*)0x200000003208 = 0;
    *(uint64_t*)0x200000003210 = 0x200000000000;
    *(uint64_t*)0x200000003218 = 0;
    *(uint64_t*)0x200000003220 = 0;
    *(uint64_t*)0x200000003228 = 0;
    *(uint32_t*)0x200000003230 = 0;
    *(uint32_t*)0x200000003238 = 0x8d;
    *(uint64_t*)0x200000003240 = 0x200000000280;
    *(uint32_t*)0x200000003248 = 0;
    *(uint64_t*)0x200000003250 = 0x200000000680;
    *(uint64_t*)0x200000000680 = 0x200000000500;
    *(uint64_t*)0x200000000688 = 0;
    *(uint64_t*)0x200000000690 = 0x200000000600;
    *(uint64_t*)0x200000000698 = 0;
    *(uint64_t*)0x2000000006a0 = 0x200000000140;
    *(uint64_t*)0x2000000006a8 = 0;
    *(uint64_t*)0x200000003258 = 0;
    *(uint64_t*)0x200000003260 = 0;
    *(uint64_t*)0x200000003268 = 0;
    *(uint32_t*)0x200000003270 = 0;
    *(uint32_t*)0x200000003278 = 0x86f7;
    *(uint64_t*)0x200000003280 = 0x2000000006c0;
    *(uint32_t*)0x200000003288 = 0;
    *(uint64_t*)0x200000003290 = 0x200000002b80;
    *(uint64_t*)0x200000002b80 = 0x200000000740;
    *(uint64_t*)0x200000002b88 = 0;
    *(uint64_t*)0x200000002b90 = 0x200000000780;
    *(uint64_t*)0x200000002b98 = 0;
    *(uint64_t*)0x200000002ba0 = 0x200000001780;
    *(uint64_t*)0x200000002ba8 = 0;
    *(uint64_t*)0x200000002bb0 = 0x200000001840;
    *(uint64_t*)0x200000002bb8 = 0;
    *(uint64_t*)0x200000002bc0 = 0x2000000018c0;
    *(uint64_t*)0x200000002bc8 = 0;
    *(uint64_t*)0x200000002bd0 = 0x2000000019c0;
    *(uint64_t*)0x200000002bd8 = 0;
    *(uint64_t*)0x200000002be0 = 0x200000001ac0;
    *(uint64_t*)0x200000002be8 = 0;
    *(uint64_t*)0x200000002bf0 = 0x200000002ac0;
    *(uint64_t*)0x200000002bf8 = 0;
    *(uint64_t*)0x200000003298 = 0;
    *(uint64_t*)0x2000000032a0 = 0x200000002c00;
    *(uint64_t*)0x2000000032a8 = 0;
    *(uint32_t*)0x2000000032b0 = 0;
    *(uint32_t*)0x2000000032b8 = 0xffff;
    *(uint64_t*)0x2000000032c0 = 0x200000002cc0;
    *(uint32_t*)0x2000000032c8 = 0;
    *(uint64_t*)0x2000000032d0 = 0x200000000000;
    *(uint64_t*)0x200000000000 = 0x200000000380;
    *(uint64_t*)0x200000000008 = 0;
    *(uint64_t*)0x2000000032d8 = 0;
    *(uint64_t*)0x2000000032e0 = 0x200000002e00;
    *(uint64_t*)0x2000000032e8 = 0;
    *(uint32_t*)0x2000000032f0 = 0;
    *(uint32_t*)0x2000000032f8 = 0xa5;
    *(uint64_t*)0x200000003300 = 0x200000002f00;
    *(uint32_t*)0x200000003308 = 0;
    *(uint64_t*)0x200000003310 = 0x200000003100;
    *(uint64_t*)0x200000003100 = 0x200000002f80;
    *(uint64_t*)0x200000003108 = 0;
    *(uint64_t*)0x200000003110 = 0x200000003040;
    *(uint64_t*)0x200000003118 = 0;
    *(uint64_t*)0x200000003318 = 0;
    *(uint64_t*)0x200000003320 = 0x200000003140;
    *(uint64_t*)0x200000003328 = 0;
    *(uint32_t*)0x200000003330 = 0;
    *(uint32_t*)0x200000003338 = 0x10;
    syscall(__NR_recvmmsg, /*fd=*/r[0], /*mmsg=*/0x200000003200ul,
            /*vlen=*/0x10133ul, /*f=MSG_PEEK*/ 2ul, /*timeout=*/0ul);
    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;
  use_temporary_dir();
  loop();
  return 0;
}