// https://syzkaller.appspot.com/bug?id=2e0cc788d5e546622cf655f7f55c952e4d0b61b0
// 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_bpf
#define __NR_bpf 321
#endif
#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);
      if (call == 1 || call == 6)
        break;
      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);
  }
}

void execute_call(int call)
{
  switch (call) {
  case 0:
    //  syz_mount_image$hfsplus arguments: [
    //    fs: ptr[in, buffer] {
    //      buffer: {68 66 73 70 6c 75 73 00} (length 0x8)
    //    }
    //    dir: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      00} (length 0xfa)
    //    }
    //    flags: mount_flags = 0x2000010 (8 bytes)
    //    opts: ptr[inout, array[ANYUNION]] {
    //      array[ANYUNION] {
    //      }
    //    }
    //    chdir: int8 = 0xff (1 bytes)
    //    size: len = 0x6e5 (8 bytes)
    //    img: ptr[in, buffer] {
    //      buffer: (compressed buffer with length 0x6e5)
    //    }
    //  ]
    //  returns fd_dir
    memcpy((void*)0x200000000100, "hfsplus\000", 8);
    memcpy((void*)0x200000002900,
           "./"
           "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
           250);
    memcpy(
        (void*)0x200000000f00,
        "\x78\x9c\xec\xdd\xcf\x6f\x1c\x67\x19\x07\xf0\xef\xac\xd7\x8e\x37\x54"
        "\xc1\x69\x93\x36\x42\x45\x58\x89\x54\x90\x22\x12\x27\x56\x0a\xe1\x82"
        "\x41\x08\xe5\x50\xa1\xaa\x1c\x7a\xb6\x12\xa7\xb1\xba\x49\xaa\xc4\x45"
        "\x69\x85\x20\x05\x04\x27\x24\x0e\xfd\x03\x0a\x92\x6f\x1c\x10\x12\xf7"
        "\xa0\x70\xe1\x52\x6e\xbd\xfa\x58\x09\x89\x4b\xc4\x21\xaa\x90\x16\xcd"
        "\xec\xec\x7a\xd7\x5e\xc7\x76\x62\xaf\x1d\xf8\x7c\xa2\xf1\xbc\xef\xbc"
        "\xef\xbc\xf3\xcc\x33\xbf\xbc\xeb\xac\x36\xc0\xff\xad\x2b\x67\xd3\x7c"
        "\x90\x22\x57\xce\xbe\x71\xaf\xac\xaf\xad\xce\xb7\xd7\x56\xe7\x8f\xd4"
        "\xcd\xed\x24\x65\xb9\x91\x34\xbb\xb3\x14\xb7\x92\xe2\x61\xb2\x50\xb6"
        "\x17\x03\x53\x06\xe6\x9b\x7c\xbc\x7c\xf9\xad\xcf\x1e\xad\x7d\xde\xad"
        "\x35\xeb\xa9\xea\x3f\xd1\x5f\x6f\x7a\x47\x21\x8f\xd8\xc6\xfd\x7a\xca"
        "\x6c\x3d\xde\xec\xc8\x35\x27\x77\x34\x7e\x77\xac\x2a\xbc\xbc\x90\xe4"
        "\x6a\x3d\x1f\x36\xb5\xd3\xb1\x86\x3a\x96\x49\x3b\x53\xcf\xe1\xc0\x75"
        "\x36\xb9\xbf\x9b\xd5\xb7\xbc\xde\x81\xc3\xaf\xf7\x74\x2a\xba\xcf\xcd"
        "\x4d\x66\x92\xa3\xf5\x93\xb9\xfa\x9d\xa0\xbe\x3b\x34\xc6\x17\xe1\xfe"
        "\xd8\xd5\x5d\x0e\x00\x00\x00\x9e\x53\x9f\xde\x3e\xe8\x08\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\xe0\xf9\x53\x7f\xff\x7f\x51\x4f\x8d\x7a"
        "\x9e\xd9\x14\xbd\xef\xff\x9f\xea\x2d\xab\xcb\x87\xd0\xc2\x8e\x7b\x3e"
        "\xd8\xd7\x38\x00\x00\x00\x00\x00\x00\x00\x60\x3c\xbe\xf6\x38\x8f\x73"
        "\x2f\xc7\x7a\xf5\x4e\x51\xfd\xcd\xff\x74\x55\x39\x91\x2f\x3a\xc9\x97"
        "\xf2\x7e\xee\x66\x29\x77\x72\x2e\xf7\xb2\x98\x95\xac\xe4\x4e\x2e\x24"
        "\x99\x19\x18\x68\xea\xde\xe2\xca\xca\x9d\x0b\xfd\x35\x4b\xa3\xd7\xbc"
        "\x38\x72\xcd\x8b\xe3\xda\x63\x00\x00\x00\x00\x00\x00\x00\xf8\x9f\xf4"
        "\x8b\xb4\xd6\xff\xfe\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\x87\x41\x91\x4c\x74\x67\xd5\x74\xa2\x9e\x67\x26\x8d\x66\xd6"
        "\xdb\x72\x3f\xf9\x47\x92\xa9\x83\x8e\x77\x17\x8a\x51\x0b\x1f\x8c\x3f"
        "\x0e\x00\x00\x00\x78\x26\xd3\x4f\xb1\xce\x97\x1f\xe7\x71\xee\xe5\x58"
        "\xaf\xde\x29\xaa\xd7\xfc\x2f\x57\xaf\x97\xa7\xf3\x7e\x6e\x65\x25\xcb"
        "\x59\x49\x3b\x4b\xb9\x56\xbf\x86\x2e\x5f\xf5\x37\xd6\x56\xe7\xdb\x6b"
        "\xab\xf3\x37\xcb\xa9\xac\x0f\x8f\xfb\xbd\x7f\xed\x2a\x8c\xa9\x7a\x84"
        "\x89\xaa\x36\x6a\xcb\xa7\xaa\x1e\xad\x5c\xcf\x72\xb5\xe4\x5c\xae\x16"
        "\xc9\x7f\x3a\x9d\x4e\xa3\xbb\xed\x33\xc9\xa9\x5e\x3c\x03\x71\x0d\xf8"
        "\xa8\x8c\xa9\xf8\x6e\x6d\x87\x91\x35\xeb\xb4\x96\x7b\xfe\xbb\xad\xde"
        "\x45\xd8\x13\xc3\x6f\x45\x34\x9e\xd0\xb3\xb5\x1e\x5c\xd2\xcf\xc8\x5c"
        "\x1d\x5b\xb9\xe6\xf1\x6e\x06\x8a\xea\x8d\x9a\x64\x63\x26\xb6\x3d\x3a"
        "\xcd\xa1\xda\x4c\x35\xea\x64\x7f\x4b\x17\xd2\xe8\xbf\xf3\x73\x62\x1f"
        "\x72\x7e\xb4\x9e\x97\xfb\xf3\xeb\x7d\xcd\xf9\x6e\xf5\x33\xd1\x48\x95"
        "\x89\x8b\x69\xf4\x8f\xd4\xcb\x4f\xce\x44\xf2\xf5\xbf\xfc\xf1\xed\x1b"
        "\xed\x5b\xef\xde\xb8\x7e\xf7\xec\xe1\xd9\xa5\x6d\x4c\x6c\xb1\x7c\xe3"
        "\x39\x31\x3f\x90\x89\x57\x9e\xeb\x4c\x34\x77\xd9\x7f\xae\xca\xc4\xc9"
        "\x7e\xfd\x4a\x7e\x98\x1f\xe7\x6c\x66\xf3\x66\xee\x64\x39\x3f\xc9\x62"
        "\x56\xb2\x94\x4e\xdd\xbe\x58\x9f\xcf\xe5\xcf\x99\x27\x67\x6a\x61\xa8"
        "\xf6\xe6\x76\x91\x4c\xd5\xc7\xa5\x7b\xcc\x76\x12\xd3\x6c\x7e\x50\x95"
        "\x16\x73\xba\x5a\xf7\x58\x96\x53\xe4\x76\xae\x65\x29\xaf\x57\xff\x2e"
        "\xe6\x42\xbe\x95\x4b\xb9\x94\xcb\x03\x47\xf8\xe4\x96\x71\x57\xfb\x56"
        "\x5d\xf5\x8d\x8d\x57\x7d\xef\x48\xff\x75\x64\xf0\x67\xbe\x51\x17\xca"
        "\xbb\xdb\x6f\xd6\xef\x72\x0b\x4f\xda\xe3\xad\xce\xce\xbd\xd2\xbd\xf7"
        "\x97\x79\x3d\x3e\x90\xd7\xee\x59\xff\xa8\xdf\xeb\xf8\xc0\x75\x30\x37"
        "\x90\xa5\x17\x7b\xd9\x99\x1c\x39\xf8\xd3\xdc\x1b\x9b\x5f\xa9\x0b\xe5"
        "\x36\x7e\xb9\xcd\x73\x62\xbc\x66\xea\x4c\x94\x17\x50\xef\x29\xd1\x8b"
        "\xee\xa5\x6e\x26\x9a\xd5\xb3\x68\xf3\x79\xfe\xfb\x4e\xb9\x5e\xda\xb7"
        "\x3a\x9d\x1b\x8b\xef\x6d\x31\xfe\xfd\x0d\xf5\xd7\xea\x79\x79\x5a\xad"
        "\x7e\x75\xbb\xde\x3d\xa3\x0f\xc5\xde\x2a\xcf\x97\x17\x33\x5d\xdf\x49"
        "\x86\xcf\x8e\xb2\xed\xa5\xfe\x5d\x66\xa0\xad\xb3\x7e\x2e\x77\xdb\x86"
        "\x9f\xb8\xe5\x7a\x27\xab\xb6\xa2\xe8\x5d\xa9\x3f\xca\xed\xea\x04\xd8"
        "\x7c\xa5\x4e\xd5\xbf\xc3\x75\x47\x9a\x18\x18\xe9\x62\xd5\xf6\xca\xc8"
        "\xad\xcc\x57\x6d\xa7\x06\xda\x86\x7e\xdf\xca\xed\xb4\x73\x6d\x0c\xf9"
        "\x03\xe0\x69\xfc\xfd\xed\x7e\x71\x26\x47\xa7\x5a\xff\x6c\x7d\xda\xfa"
        "\xa4\xf5\xab\xd6\x8d\xd6\x1b\xd3\xdf\x3f\xf2\xed\x23\xaf\x4e\x65\xf2"
        "\x6f\x93\xdf\x69\xce\x4d\xbc\xd6\x78\xb5\xf8\x73\x3e\xc9\xcf\xd6\x5f"
        "\xff\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x4f\xef\xee\x07\x1f\xbe\xbb\xd8\x6e"
        "\x2f\xdd\x19\x5d\x68\x6c\xdd\xb4\xb8\xd0\xfb\xe2\x9a\x76\x7b\xa9\x95"
        "\x8d\x7d\x36\x8e\x5c\x34\x53\xf5\x39\x32\x7a\xc0\xa2\xfe\x42\x9f\x6d"
        "\xe2\x39\x94\x85\x34\x37\x37\x4d\x97\x79\x19\x5c\x32\xd9\x4d\xd4\x98"
        "\x23\x6c\x6d\x0c\x63\x53\xa1\xf3\xf3\x64\xec\x19\xeb\x7d\x89\xe0\xe8"
        "\x3e\xbf\x2d\x0b\xcd\x4d\x67\xd4\xa8\xc2\xc2\xd0\x92\x3f\x6d\x1e\xf0"
        "\xa3\x5d\x46\x58\xec\xec\xba\xd8\xc7\x42\x23\xe3\xdd\x68\x79\x15\x8f"
        "\x6a\x3a\xa0\x1b\x12\x30\x36\xe7\x57\x6e\xbe\x77\xfe\xee\x07\x1f\x7e"
        "\x73\xf9\xe6\xe2\x3b\x4b\xef\x2c\xdd\x9a\xbc\x74\xe9\xf2\xdc\xe5\x4b"
        "\xaf\xcf\x9f\xbf\xbe\xdc\x5e\x9a\xeb\xfe\x3c\xe8\x28\x81\xfd\xb0\xfe"
        "\xd0\x3f\xe8\x48\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x9d\x1a\xf5"
        "\xc1\x80\xd3\x2f\x6c\xf7\xa1\x91\x1d\x7d\xc6\xc3\xff\x2c\x04\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\xf6\xc4\x95\xb3\x69\x3e\x48\x91\x0b\x73\xe7\xe6\xca"
        "\xfa\xda\xea\x7c\xbb\x9c\x7a\xe5\xf5\x9e\xcd\x24\x8d\x46\x52\xfc\x34"
        "\x29\x1e\x26\x0b\xe9\x4e\x99\x19\x18\xae\xc8\x1f\x1e\xa6\x33\x62\x3b"
        "\x1f\x2f\x5f\x7e\xeb\xb3\x47\x6b\x9f\xaf\x8f\xd5\xec\xf6\x4f\x1a\xf5"
        "\x7c\x6b\x4f\x6e\x4d\x72\xbf\x9e\x32\x9b\x64\xa2\x9e\x3f\x83\xa1\xf1"
        "\xae\x3e\xf3\x78\xc5\xbf\x7b\xfb\x50\x26\xec\x8b\x4e\xa7\xb3\xf0\x6c"
        "\xf1\xc1\xde\xf8\x6f\x00\x00\x00\xff\xff\xb8\xd8\xf2\x13",
        1765);
    syz_mount_image(/*fs=*/0x200000000100, /*dir=*/0x200000002900,
                    /*flags=MS_LAZYTIME|MS_SYNCHRONOUS*/ 0x2000010,
                    /*opts=*/0x2000000022c0, /*chdir=*/-1, /*size=*/0x6e5,
                    /*img=*/0x200000000f00);
    break;
  case 1:
    //  mknod$loop arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    mode: mknod_mode = 0x0 (8 bytes)
    //    dev: proc = 0x1 (4 bytes)
    //  ]
    memcpy((void*)0x200000000000, "./file0\000", 8);
    syscall(__NR_mknod, /*file=*/0x200000000000ul, /*mode=*/0ul, /*dev=*/0x701);
    break;
  case 2:
    //  mknod$loop arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      00} (length 0xfa)
    //    }
    //    mode: mknod_mode = 0x0 (8 bytes)
    //    dev: proc = 0x1 (4 bytes)
    //  ]
    memcpy((void*)0x200000000000,
           "./"
           "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
           250);
    syscall(__NR_mknod, /*file=*/0x200000000000ul, /*mode=*/0ul, /*dev=*/0x701);
    break;
  case 3:
    //  creat arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      00} (length 0xfb)
    //    }
    //    mode: open_mode = 0x64 (8 bytes)
    //  ]
    //  returns fd
    memcpy((void*)0x200000000e00,
           "./"
           "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
           251);
    syscall(__NR_creat, /*file=*/0x200000000e00ul,
            /*mode=S_IROTH|S_IRGRP|S_IXUSR*/ 0x64ul);
    break;
  case 4:
    //  bpf$PROG_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
    //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
    //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
    //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
    //        type: bpf_prog_type = 0x11 (4 bytes)
    //        ninsn: bytesize8 = 0xc (4 bytes)
    //        insns: nil
    //        license: nil
    //        loglev: int32 = 0x0 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x0 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: union bpf_prog_attach_types {
    //          fallback: bpf_attach_types = 0x8 (4 bytes)
    //        }
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x0 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x0 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: bpf_btf_id (resource)
    //        attach_prog_fd: fd_bpf_prog (resource)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x0 (4 bytes)
    //        log_true_size: int32 = 0x1000 (4 bytes)
    //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
    //        bpf_prog_attach_types, bpf_btf_id[opt],
    //        fd_bpf_prog[opt]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog
    *(uint32_t*)0x2000000000c0 = 0x11;
    *(uint32_t*)0x2000000000c4 = 0xc;
    *(uint64_t*)0x2000000000c8 = 0;
    *(uint64_t*)0x2000000000d0 = 0;
    *(uint32_t*)0x2000000000d8 = 0;
    *(uint32_t*)0x2000000000dc = 0;
    *(uint64_t*)0x2000000000e0 = 0;
    *(uint32_t*)0x2000000000e8 = 0;
    *(uint32_t*)0x2000000000ec = 0;
    memset((void*)0x2000000000f0, 0, 16);
    *(uint32_t*)0x200000000100 = 0;
    *(uint32_t*)0x200000000104 = 8;
    *(uint32_t*)0x200000000108 = -1;
    *(uint32_t*)0x20000000010c = 0;
    *(uint64_t*)0x200000000110 = 0;
    *(uint32_t*)0x200000000118 = 0;
    *(uint32_t*)0x20000000011c = 0;
    *(uint64_t*)0x200000000120 = 0;
    *(uint32_t*)0x200000000128 = 0;
    *(uint32_t*)0x20000000012c = 0;
    *(uint32_t*)0x200000000130 = 0;
    *(uint32_t*)0x200000000134 = 0;
    *(uint64_t*)0x200000000138 = 0;
    *(uint64_t*)0x200000000140 = 0;
    *(uint32_t*)0x200000000148 = 0;
    *(uint32_t*)0x20000000014c = 0x1000;
    *(uint32_t*)0x200000000150 = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul);
    break;
  case 5:
    //  openat$cgroup_ro arguments: [
    //    fd: fd_cgroup (resource)
    //    file: ptr[in, buffer] {
    //      buffer: {63 70 75 73 65 74 2e 65 66 66 65 63 74 69 76 65 5f 63 70 75
    //      73 00} (length 0x16)
    //    }
    //    flags: const = 0x275a (4 bytes)
    //    mode: const = 0x0 (2 bytes)
    //  ]
    //  returns fd
    memcpy((void*)0x200000000080, "cpuset.effective_cpus\000", 22);
    syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
            /*flags=*/0x275a, /*mode=*/0);
    break;
  case 6:
    //  rename arguments: [
    //    old: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    new: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //  ]
    memcpy((void*)0x200000000a40, "./file0\000", 8);
    memcpy((void*)0x200000000b40, "./file0\000", 8);
    syscall(__NR_rename, /*old=*/0x200000000a40ul, /*new=*/0x200000000b40ul);
    break;
  case 7:
    //  rename arguments: [
    //    old: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      00} (length 0xfa)
    //    }
    //    new: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
    //      00} (length 0xfb)
    //    }
    //  ]
    memcpy((void*)0x200000000a40,
           "./"
           "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
           250);
    memcpy((void*)0x200000000b40,
           "./"
           "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
           251);
    syscall(__NR_rename, /*old=*/0x200000000a40ul, /*new=*/0x200000000b40ul);
    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;
}