// https://syzkaller.appspot.com/bug?id=1bff248f149c8187226a53931a7fd8559658bc03
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.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/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

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

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

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

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

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

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

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

static void setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data))
      printf("write to %s failed: %s\n", files[i].name, strerror(errno));
  }
}

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 (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  NONFAILING(memcpy((void*)0x20000780, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x20000240, "./file0\000", 8));
  NONFAILING(*(uint8_t*)0x200001c0 = 0);
  NONFAILING(memcpy(
      (void*)0x20000fc0,
      "\x78\x9c\xec\xdd\xdf\x6b\x5b\x55\x1c\x00\xf0\xef\x4d\xdb\x75\xed\xa6\xad"
      "\x20\xe8\x7c\x2a\x08\x5a\x18\x4b\xed\xac\x9b\x82\x0f\x13\x1f\x44\x70\x30"
      "\xd0\x67\xb7\x90\x66\x65\x36\x6d\x46\x93\x8e\xb5\x14\xdc\x10\xc1\x17\x41"
      "\xc5\x07\x41\x5f\xf6\xec\x8f\xf9\xe6\xab\x3f\x5e\xf5\xbf\xf0\x41\x36\xa6"
      "\x76\xc3\x89\x0f\x52\xb9\x69\xd2\x65\x6b\xd2\xa5\x5b\x93\x08\xf9\x7c\xe0"
      "\x34\xe7\xdc\x7b\xd3\x73\xbe\x39\xf7\x9e\x7b\x92\x7b\x49\x02\xe8\x5b\x13"
      "\xe9\x9f\x4c\xc4\xa1\x88\xf8\x28\x89\x18\xab\x2d\x4f\x22\x62\xa8\x9a\x1b"
      "\x8c\x38\xb1\xb9\xdd\xed\xf5\xb5\x7c\x9a\x92\xd8\xd8\x78\xf3\x8f\xa4\xba"
      "\xcd\xad\xf5\xb5\x7c\x34\x3c\x27\x75\xa0\x56\x78\x32\x22\x7e\x7c\x3f\xe2"
      "\x70\x66\x7b\xbd\xe5\x95\xd5\xf9\x5c\xb1\x58\x58\xaa\x95\xa7\x2a\x0b\xe7"
      "\xa7\xca\x2b\xab\x47\xce\x2d\xe4\xe6\x0a\x73\x85\xc5\x63\xd3\x33\x33\x47"
      "\x8f\xbf\x70\xfc\xd8\xde\xc5\xfa\xd7\x2f\xab\x07\xaf\x7f\xfc\xda\xb3\xdf"
      "\x9c\xf8\xe7\xbd\x27\xae\x7e\xf8\x53\x12\x27\xe2\x60\x6d\x5d\x63\x1c\x7b"
      "\x65\x22\x26\x6a\xaf\xc9\x50\xfa\x12\xde\xe5\xd5\xbd\xae\xac\xc7\x92\x5e"
      "\x37\x80\x07\x92\x1e\x9a\x03\x9b\x47\x79\x1c\x8a\xb1\x18\xa8\xe6\x5a\x18"
      "\xe9\x66\xcb\x00\x80\x4e\x79\x37\x22\x36\x00\x80\x3e\x93\x38\xff\x03\x40"
      "\x9f\xa9\x7f\x0e\x70\x6b\x7d\x2d\x5f\x4f\xbd\xfd\x44\xa2\xbb\x6e\xbc\x12"
      "\x11\xfb\x37\xe3\xaf\x5f\xdf\xdc\x5c\x33\x58\xbb\x66\xb7\xbf\x7a\x1d\x74"
      "\xf4\x56\x72\xd7\x95\x91\x24\x22\xc6\xf7\xa0\xfe\x89\x88\xf8\xe2\xbb\xb7"
      "\xbf\x4a\x53\x74\xe8\x3a\x24\x40\x33\x97\x2e\x47\xc4\x99\xf1\x89\xed\xe3"
      "\x7f\xb2\xed\x9e\x85\xdd\x7a\xae\x8d\x6d\x26\xee\x29\x1b\xff\xa0\x7b\xbe"
      "\x4f\xe7\x3f\x2f\x36\x9b\xff\x65\xb6\xe6\x3f\xd1\x64\xfe\x33\xdc\xe4\xd8"
      "\x7d\x10\xf7\x3f\xfe\x33\xd7\xf6\xa0\x9a\x96\xd2\xf9\xdf\xcb\x0d\xf7\xb6"
      "\xdd\x6e\x88\xbf\x66\x7c\xa0\x56\x7a\xa4\x3a\xe7\x1b\x4a\xce\x9e\x2b\x16"
      "\xd2\xb1\xed\xd1\x88\x98\x8c\xa1\xe1\xb4\x3c\xbd\x43\x1d\x93\x37\xff\xbd"
      "\xd9\x6a\x5d\xe3\xfc\xef\xcf\x4f\xde\xf9\x32\xad\x3f\x7d\xbc\xb3\x45\xe6"
      "\xda\xe0\xf0\xdd\xcf\x99\xcd\x55\x72\x0f\x13\x73\xa3\x1b\x97\x23\x9e\x1a"
      "\x6c\x16\x7f\xb2\xd5\xff\x49\x8b\xf9\xef\xa9\x36\xeb\x78\xfd\xa5\x0f\x3e"
      "\x6f\xb5\x2e\x8d\x3f\x8d\xb7\x9e\xb6\xc7\xdf\x59\x1b\x57\x22\x9e\x69\xda"
      "\xff\x77\xee\x68\x4b\x76\xbc\x3f\x71\xaa\xba\x3b\x4c\xd5\x77\x8a\x26\xbe"
      "\xfd\xf5\xb3\xd1\x56\xf5\x37\xf6\x7f\x9a\xd2\xfa\xeb\xef\x05\xba\x21\xed"
      "\xff\xd1\x9d\xe3\x1f\x4f\x1a\xef\xd7\x2c\xef\xbe\x8e\x9f\xaf\x8c\xfd\xd0"
      "\x6a\xdd\xfd\xe3\x6f\xbe\xff\xef\x4b\xde\xaa\xe6\xf7\xd5\x96\x5d\xcc\x55"
      "\x2a\x4b\xd3\x11\xfb\x92\x37\xb6\x2f\x3f\x7a\xe7\xb9\xf5\x72\x7d\xfb\x34"
      "\xfe\xc9\xa7\x9b\x1f\xff\x3b\xed\xff\xe9\x7b\xc2\x33\x6d\xc6\x3f\x78\xfd"
      "\xf7\xaf\x1f\x3c\xfe\xce\x4a\xe3\x9f\xdd\x55\xff\xef\x3e\x73\xf5\xf6\xfc"
      "\x40\xab\xfa\xdb\xeb\xff\x99\x6a\x6e\xb2\xb6\xa4\x9d\xf1\xaf\xdd\x06\x3e"
      "\xcc\x6b\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\xed\xca\x44\xc4\xc1\x48\x32\xd9\xad\x7c\x26\x93\xcd\x6e"
      "\xfe\x86\xf7\xe3\x31\x9a\x29\x96\xca\x95\xc3\x67\x4b\xcb\x8b\xb3\x51\xfd"
      "\xad\xec\xf1\x18\xca\xd4\xbf\xea\x72\xac\xe1\xfb\x50\xa7\x6b\xdf\x87\x5f"
      "\x2f\x1f\xbd\xa7\xfc\x7c\x44\x3c\x16\x11\x9f\x0e\x8f\x54\xcb\xd9\x7c\xa9"
      "\x38\xdb\xeb\xe0\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa0"
      "\xe6\x40\x8b\xdf\xff\x4f\xfd\x36\xdc\xeb\xd6\x01\x00\x1d\xb3\xbf\xd7\x0d"
      "\x00\x00\xba\xce\xf9\x1f\x00\xfa\xcf\xee\xce\xff\x23\x1d\x6b\x07\x00\xd0"
      "\x3d\xde\xff\x03\x40\xff\x71\xfe\x07\x80\xfe\xe3\xfc\x0f\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x87\x9d\x3a\x79\x32\x4d\x1b"
      "\x7f\xaf\xaf\xe5\xd3\xf2\xec\x85\x95\xe5\xf9\xd2\x85\x23\xb3\x85\xf2\x7c"
      "\x76\x61\x39\x9f\xcd\x97\x96\xce\x67\xe7\x4a\xa5\xb9\x62\x21\x9b\x2f\x2d"
      "\xb4\xfc\x47\x97\x36\x1f\x8a\xa5\xd2\xf9\x99\x58\x5c\xbe\x38\x55\x29\x94"
      "\x2b\x53\xe5\x95\xd5\xd3\x0b\xa5\xe5\xc5\xca\xe9\x73\x0b\xb9\xb9\xc2\xe9"
      "\xc2\x50\xd7\x22\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80"
      "\xf6\x95\x57\x56\xe7\x73\xc5\x62\x61\x49\x46\x46\x46\x66\x2b\xd3\x38\x4a"
      "\x8c\xf4\x6e\x80\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf8\x9f\xfb\x2f"
      "\x00\x00\xff\xff\xd1\x32\x2a\xca",
      1898));
  NONFAILING(syz_mount_image(
      /*fs=*/0x20000780, /*dir=*/0x20000240,
      /*flags=MS_LAZYTIME|MS_NOATIME|MS_DIRSYNC*/ 0x2000480,
      /*opts=*/0x200001c0, /*chdir=*/1, /*size=*/0x76a, /*img=*/0x20000fc0));
  NONFAILING(memcpy((void*)0x20000000, "./file0\000", 8));
  syscall(__NR_chdir, /*dir=*/0x20000000ul);
  NONFAILING(memcpy((void*)0x20000040, "./bus\000", 6));
  syscall(__NR_creat, /*file=*/0x20000040ul, /*mode=*/0ul);
  NONFAILING(memcpy((void*)0x20000040, "memory.swap.events\000", 19));
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul,
          /*flags=*/0x275aul, /*mode=*/0ul);
  NONFAILING(memcpy((void*)0x20000380, "/dev/loop", 9));
  NONFAILING(*(uint8_t*)0x20000389 = 0x30 + procid * 1);
  NONFAILING(*(uint8_t*)0x2000038a = 0);
  NONFAILING(memcpy((void*)0x20000140, "./bus\000", 6));
  syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x20000140ul, /*type=*/0ul,
          /*flags=MS_BIND*/ 0x1000ul, /*data=*/0ul);
  NONFAILING(memcpy((void*)0x20000080, "./bus\000", 6));
  res = syscall(__NR_open, /*file=*/0x20000080ul,
                /*flags=O_SYNC|O_NOCTTY|O_DIRECT|O_CLOEXEC|O_RDWR*/ 0x185102ul,
                /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0xb36000ul,
          /*prot=PROT_WRITE*/ 2ul,
          /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
          /*fd=*/r[0], /*offset=*/0ul);
  NONFAILING(*(uint32_t*)0x20001dc0 = 7);
  NONFAILING(memcpy(
      (void*)0x20001dc4,
      "\xa2\xe3\xad\x21\xed\x0d\x52\xf9\x1b\x38\x09\x09\x87\xf7\x0e\x06\xd0\x38"
      "\xe7\xff\x7f\xc6\xe5\x53\x9b\x32\x44\x07\x8b\x08\x9b\x32\x07\x37\x6d\x09"
      "\x08\x90\xe0\x87\x8f\x0e\x1a\xc6\xe7\x04\x9b\x33\x6d\x95\x9b\x65\x9a\x24"
      "\x0d\x5b\x67\xf3\x98\x8f\x7e\xf3\x19\x52\x01\x00\xff\xe8\xd1\x78\x70\x8c"
      "\x52\x3c\x92\x1b\x1b\x5b\x31\x07\x0d\x07\x4a\x09\x36\xcd\x3b\x78\x13\x0d"
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      "\x4b\xa3\x06\x42\x79\xb1\x0e\xa0\xc5\x83\x3f\x41\xf1\x57\xea\x23\x02\x99"
      "\x3d\xbe\x43\x3b\x1a\xa3\xa3\x76\x6d\x54\x39\x02\x04\x84\xf4\x11\x3c\x4c"
      "\x85\x94\x65\xc3\xb4\x15\xc3\x43\x2f\x81\xdb\x87\x19\x53\x9d\x5b\xf3\x72"
      "\xaa\x8e\xa1\xcc\x43\xa6\xc5\xcb\xe5\x97\x58\xbf\xee\x29\x16\x58\x0d\xac"
      "\x4b\x00\x8e\x59\x5f\x43\x74\x91\xd8\x7a\xbe\xd0\x2c\xef\xcd\x9d\xb5\x3d"
      "\x94\xd0\x2d\xae\x17\xb1\x18\xe5\xd6\x78\x74\x63\x18\x3b\x4b\x87\xc1\x05"
      "\x00\x00\x00\x2f\x78\x09\x95\x9b\xc0\x48\x85\x06\x13\xd1\x7c\xa5\x10\x55"
      "\xf2\xf4\x16\xa4\x4f\xe1\x80\xd2\xd5\x0c\x31\x2c\xca\x7c\xb1\x4a\x2b\xdc"
      "\x33\x1f\x57\xa9\x81\x71\x39\xa2\x06\xfc\x76\x95\x72\x27\xff\xff\x2d\xe2"
      "\x0a\x4b\x8e\x37\x37\xfb\xb4\x29\x13\x77\x7c\x06\x37\x6f\x79\x9e\xba\x36"
      "\x7e\x21\xf9\x4c\xa5\x98\x70\x5f\x5d\xcb\x76\x7d\x6f\x09\x00\xd6\xb0\xf6"
      "\x09\x5e\x53\xc4\xc4\x23\x4d\x0c\x1f\xbe\x43\x4f\x6a\xb8\xf4\x3c\x00\x13"
      "\xee\x93\xb8\x39\x46\xee\x77\x59\xe8\x9d\x7b\xdd\x1a\x32\xd7\xb3\x11\x71"
      "\x1b\x75\x7f\xe4\x3c\x06\xd2\x1a\x35\x81\x0d\x8f\xe9\x8b\x27\xfa\xea\x8a"
      "\xa1\x2b\xc8\x71\x6e\xef\xc5\xc9\x7c\x45\xac\x33\xee\xec\x96\x4c\x52\x14"
      "\xbc\x3a\x93\x59\xbd\xea\x1c\xcc\xab\x94\xf1\x5e\x36\x31\x9c\xb3\x4e\x00"
      "\xac\xed\xb8\x2c\x2e\xd3\xde\x5a\x8a\x8f\x00\x11\xe8\xf7\x4e\x82\xd7\xf9"
      "\x60\x93\x53\x0e\x76\x69\x28\x39\xd7\x96\x19\x39\xad\xfd\xee\xea\xff\x19"
      "\xd1\x1e\xfc\xaf\xb6\xd5\x46\xfe\xf2\x71\xe8\x9d\x6c\xc2\x38\x9e\x81\xff"
      "\x58\xce\xfc\xce\x3f\xbf\x46\x25\xa7\xe7\xde\x40\xe4\x2e\x07\xb3\x44\x49"
      "\xe1\x5e\x06\x5c\xc7\x34\x00\x02\x00\x00\x00\x00\x00\x00\xf2\x88\xa4\x51"
      "\x0d\xe0\x3d\xab\x19\xd2\x62\x85\xed\xa8\x91\x56\xd5\x0d\xd3\x85\xa6\x03"
      "\x33\xba\x5b\xbf\x5d\x77\xcd\x70\x07\xad\x15\x19\xad\x54\x70\xde\x3d\xd6"
      "\xd6\x08\x0c\xaf\xcc\xf8\xa9\x74\x06\xbb\x6b\x68\xa1\xf0\xc4\x54\x98\x20"
      "\xa7\x3c\x88\x0f\x47\x5f\x73\x2a\xe0\x03\x98\xe8\xbd\x1f\x49\x08\xb7\x80"
      "\x7f\xb3\x3b\x72\x68\x5e\xc3\x7a\x2d\x3f\x0f\x23\x0d\xe1\x13\xbc\x56\x86"
      "\x46\xe5\xa1\xd9\x98\xa2\x01\x7a\xef\x09\x48\xa6\x8c\xf2\x55\x31\x5a\xb8"
      "\x0d\xd3\x49\xe8\x91\xae\xf5\x95\xdc\x4d\x47\x0e\x8a\xc3\x2a\x30\x8e\x15"
      "\xfc\x37\xd0\x6a\xea\xc2\x89\xc0\x52\x3f\x48\x3e\x1f\xf7\x40\x8c\x60\x87"
      "\xf1\xab\x65\x2f\x2e\xf9\x1d\x4f\x2b\x01\x98\x7b\x0f\x46\xda\x03\x4e\x5c"
      "\x3f\x74\x5a\x7e\xe8\x10\x1a\x39\x34\xc5\x4e\x24\xb4\x8e\xc0\x27\x5e\x2d"
      "\x06\x87\xdc\x74\x6b\x08\x27\xcb\xf6\x52\xf4\x06\xc6\xb9\x5f\x27\x22\xe5"
      "\x8c\x05\xf7\x52\xce\x21\x26\x59\x6e\x1c\xd7\x65\x5b\x90\x48\x01\x78\x4c"
      "\x41\x6b\x22\xf7\x3d\x32\x46\x78\xe2\x72\x4f\x43\xf1\xfe\x68\x7c\x7e\x8a"
      "\x60\xc2\x8b\x82\xb6\x52\x83\x41\xb6\x48\xcd\xd5\x6f\xed\x7c\xdc\xbb\x15"
      "\x75\x91\x2d\x5e\xcd\x36\xde\xa3\xbc\xa0\xb7\x42\x7d\x83\x92\xc6\x28\x94"
      "\x55\xe8\xf8\xd2\xab\x22\x42\x72\x92\x51\xae\x03\x3a\x9e\x02\x21\x0e\x62"
      "\xdf\x05\x46\xa7\x4b\x33\x3a\x1c\x48\xf9\x5f\xd5\x4a\xcb\x57\x41\x25\x9e"
      "\x8c\x54\x88\xef\xee\xe3\x27\x41\x5c\xc1\x94\x51\x43\x2c\x6f\x14\xc2\x76"
      "\x93\x10\x2a\x3c\xd8\x48\x57\xcd\x65\x86\xfc\x5c\xa9\xa9\x3e\xb0\x14\x5f"
      "\xac\x06\x62\xff\x86\x10\x7f\x99\x8a\x8e\xf7\xdf\x8a\xa1\x40\x46\xc5\x5b"
      "\x03\xd3\xd4\x7f\x88\xa8\xd6\x0f\x77\x74\xa2\xee\x08\x75\x88\x97\xfb\x41"
      "\x1a\x94\xb3\xc2\xfc\x5d\x5f\x0d\xb4\x2c\x04\x56\xec\x01\x5f\x08\xe5\x24"
      "\x7d\x33\xae\x2d\x35\x60\x3f\xf8\x45\x4c\x16\xf8\x34\x28\x56\x93\x51\x25"
      "\x10\x2b\xb7\x84\xed\x71\x48\xb6\xce\x43\x3b\x63\xee\x35\x6b\x0c\x78\x5f"
      "\x2f\x47\xb9\x0e\x29\x38\x9f\x22\xfc\x5b\x59\xa7\x0e\xfa\xea\x2b\xd4\x24"
      "\x95\xaf\x44\x86\x22\x0d\x70\x2e\x30\xbf\xc4\x3c\x10\xec\x23\xea\x62\x83"
      "\x99\x4a\x7d\xde\x4d\xcb\x61\xfe\xa6\xb6\x51\xfb\x1d\x62\x45\x8d\x07\x41"
      "\xa1\x28\x30\x05\x2f\xcc\x46\x0d\xb0\x43\xaf\xe5\x25\x62\x9b\x40\xd7\xce"
      "\xe4\x58\xe4\xcb\x5e\x93\x0e\xd6\x24\x80\x6c\x43\xa0\x06\xe3\x93\x36\xd0"
      "\x7c\x2b\x80\x81\xc1\x28\xad\x27\x06\xf4\x82\x61\xf7\x89\x74\x84\xc2\x97"
      "\xa1\xa6\x61\x3b\xc1\x8f\x5a\x38\xd4\x42\x76\x8a\xf3\x80\x41\xef\xe0\x3d"
      "\x15\x2e\xf9\x5f\xf5\x69\xe7\x6d\xb2\x39\x1f\x45\x09\xd7\xf3\x39\xd9\x2f"
      "\xdb\x4a\x89\x36\x49\x49\xda\x39\x80\x00\x00\x00\x00\x00\x00\x00\xd8\x0a"
      "\x4f\xe6\x54\x57\x83\x76\xe5\x99\xaf\xf3\x76\x5b\x1d\x53\x1f\x30\x91\x2b"
      "\x99\x45\x03\x0b\x81\xea\x99\x35\xfd\x46\xed\xb4\x4a\x78\xf6\x15\x25\x54"
      "\x90\xa4\xb6\x21\x50\x1f\x2a\x7d\x4d\x24\x62\x4c\x4d\xac\x92\x74\x11\x8c"
      "\x67\x58\x4f\x5d\x37\x47\x55\x53\x4d\x7f\x68\xf6\x79\xc4\xff\x51\x6a\x9c"
      "\x86\x1a\x0e\x7e\x65\x86\x8f\xcb\x2b\xf1\xcb\x9a\xea\x4e\x05\xdf\x72\x27"
      "\x9f\xdb\x0d\x2b\x9e\x93\x5c\x5a\xf3\xcf\x47\x4b\xed\x79\xdf\xc2\x48\xc1"
      "\xf5\xae\xa4\xb8\xb3\x2c\x5d\x29\x5e\x57\x07\x9d\x0f\xe6\x62\xa4\x6b\x7f"
      "\x71\xcd\x47\x74\x4d\xb8\x6c\x50\xb7\x04\xc9\x71\xd9\x02\x95\xc7\xb2\xc7"
      "\x43\x9a\x2d\x78\xcc\xfa\x79\xb5\xfc\x2b\xff\x6b\xbf\x84\x02\x62\xbf\x89"
      "\x39\x4b\x3e\x06\x91\x95\x32\x64\xd2\x70\x0c\x83\x8f\xa2\xc7\xb3\x3c\x52"
      "\x60\xf5\x95\x54\xe5\x02\xdc\xea\x39\xcb\x31\x3b\x00\x00\x00\x00\x00\x00"
      "\x4c\xa7\xc1\x2f\x45\x85\x8d\x62\x84\xca\x62\x70\xd6\xb2\xf0\xe5\x8f\xde"
      "\xd8\xa7\xb4\xa3\x02\xa9\x7b\xc6\x41\xdf\x07\x72\x0b\xa2\xb2\x6b\xbf\xcc"
      "\x80\x7c\xa0\xab\xb1\xb4\x43\x22\x26\x9c\x21\xc5\xec\x68\xcb\x06\x8e\xa8"
      "\x80\x67\xd9\x05\xea\x91\x7b\xb0\x3e\xef\xda\xeb\xde\xab\xf2\xd0\xdc\xe8"
      "\x09\x97\xc9\x15\xc8\x94\x9d\xe9\x92\x58\x7c\x2c\xb5\xfe\x36\xd7\xd3\xe5"
      "\xdb\x21\xb0\x94\xb8\xb7\x79\x40\xb5\xf0\x77\x22\xe4\x7a\x08\xd3\x67\xe5"
      "\xf8\x4c\x96\xec\x66\x4b\x72\x93\x4b\x99\xb3\x10\x9a\xf6\x5d\x77\xe8\x6a"
      "\xbd\x68\x59\xcd\xdf\x4b\xba\xe1\xf0\x93\x04\x62\xdf\x15\xfd\xdb\xc4\x85"
      "\x62\xea\x35\x11\xa8\x06\x5e\xf0\x28\xcf\x12\xf1\x4d\xcf\x6e\xbe\xcd\x8d"
      "\x88\x48\x36\x17\x4f\xaf\x1a\xa6\x09\xe5\xf1\xee\x11\x62\xdf\xa1\x3b\xdc"
      "\x1f\xa7\xcf\xaa\xdb\xa8\x5c\x72\xe9\x75\x8f\x03\xa7\x55\xd0\xbe\x53\xf8"
      "\xd2\xa1\xdf\xb1\xc6\x8c\xc1\x64\xb0\xa0\x78\x0d\x97\x1a\x96\xea\x2c\x4d"
      "\x4c\xa0\x39\x8c\x22\x35\x98\x0a\x93\x07\xb3\xd5\xbd\x3b\x01\xfa\xff\xd0"
      "\xa5\xdb\xed\x28\x81\xa9\x70\x0a\xf5\x61\xac\x8c\x7e\x36\xbb\x2f\xc4\xc4"
      "\x0e\x9c\xf9\x6f\x06\x81\x7f\xb9\x03\x72\x9a\x7d\xb6\xff\x95\x76\x97\xc9"
      "\xed\xe7\x88\x5d\x94\xff\xb0\x96\x9b\xe0\xda\xf6\x0a\xf9\x31\x09\xeb\x1d"
      "\xee\x72\xe4\x36\x3f\x51\xaf\x62\xaf\x6f\xb2\xa6\xdf\x3b\xec\x89\x82\x2a"
      "\x7a\x0b\x67\x80\x58\xfa\x3f\xef\x86\xfa\xec\x21\x6e\xb6\x99\x21\x62\xf8"
      "\xdc\xbf\x71\x9c\x14\x8c\xd2\xf9\xc5\x5f\x49\x01\x20\x3a\x9a\x8a\x2c\x3e"
      "\x90\xf3\x94\x3d\xbc\x10\x36\x0a\x1a\x49\x70\x0d\x1d\xfb\xf6\x6d\x69\xf6"
      "\xfb\xaf\x50\x6c\x8b\xcc\xe8\xbb\x0d\x87\x2a\x02\x23\x89\x26\x40\x7a\x4e"
      "\xdd\xd5\xd0\xfc\x5a\x75\x2f\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
      4096));
  NONFAILING(*(uint16_t*)0x20002dc4 = 0x1000);
  syscall(__NR_write, /*fd=*/-1, /*data=*/0x20001dc0ul, /*len=*/0x1006ul);
  NONFAILING(memcpy((void*)0x20000280, "cgroup.controllers\000", 19));
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000280ul,
          /*flags=*/0x275aul, /*mode=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  setup_sysctl();
  install_segv_handler();
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}