// https://syzkaller.appspot.com/bug?id=2accf4f32675c9153f4864c62039fd0651ca78e4
// 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 <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/futex.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 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;
}

#define MAX_FDS 30

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

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

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

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

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

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

#define ZLIB_HEADER_WIDTH 2

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

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

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

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

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

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

static void setup_common()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  setup_binderfs();
  loop();
  exit(1);
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 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, MNT_DETACH | UMOUNT_NOFOLLOW) == 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, MNT_DETACH | UMOUNT_NOFOLLOW))
        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, MNT_DETACH | UMOUNT_NOFOLLOW))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

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

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

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

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

static void setup_usb()
{
  if (chmod("/dev/raw-gadget", 0666))
    exit(1);
}

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));
  }
}

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)
{
  int i, call, thread;
  for (call = 0; call < 9; 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 == 2 || call == 4 || call == 5 || call == 7)
        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);
  close_fds();
}

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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    NONFAILING(memcpy((void*)0x20001140, "ext4\000", 5));
    NONFAILING(memcpy((void*)0x200007c0, "./file0\000", 8));
    NONFAILING(*(uint64_t*)0x20004080 = 0);
    NONFAILING(memcpy(
        (void*)0x20004088,
        "\xfc\x50\x11\x6d\x75\xf0\x2d\x84\x1f\x9c\x73\x26\x29\x13\xf9\xde\x63"
        "\xbf\xad\xe2\x81\xef\x4d\x84\x23\x63\x3d\x65\x81\xf5\xf1\x55\x8a\xc7"
        "\x00\xd7\x9e\xa6\x30\x11\xea\x49\xdb\x12\xc8\x41\x13\x47\xd5\xe2\x81"
        "\xb7\x14\x66\xcb\x87\x32\xd5\xc1\x15\xde\x5b\xf3\x9d\x84\xe7\x9c\xfa"
        "\xe2\xde\x22\x13\x63\x66\x9b\x11\xf6\x6c\xa4\x13\x60\xd4\xf0\x25\xca"
        "\x39\xec\x4e\x00\x7b\x8e\x84\x65\xed\x92\x00\x50\xd1\x46\x2e\xac\xe3"
        "\x9d\xef\xc8\x8a\xd6\x28\x82\xf2\xb7\x43\xd9\xe8\x04\x00\x4c\x45\xa1"
        "\xcf\xd5\x2f\xa5\xf8\xe3\x50\x06\x10\xf4\x1c\xe8\xfe\x4c\x19\x88\x79"
        "\x3a\x8a\x58\x46\x97\xeb\x41\x66\xc8\x5d\xdc\x05\xea\x9e\x5b\x6a\xa0"
        "\xe2\x2b\xe3\x77\x79\x1e\x45\x65\x80\xf7\xcf\x91\x09\xcf\xa8\xe9\xb8"
        "\xd6\xce\x37\xfd\xdf\x8e\xfc\x68\x20\x80\x32\x95\x8d\x89\x35\x78\x3d"
        "\x42\xdc\x3b\x6c\x3f\xac\x78\x33\x92\xec\xa5\xf7\x88\xc0\xd8\x5b\x0b"
        "\xc4\x4d\x44\x53\x37\x5b\x18\xf8\x98\x4e\x85\xbb\x55\xd3\x3e\xaf\xa8"
        "\x6e\x27\x12\x63\x61\xa6\x00\x57\xf0\x73\xce\x49\xda\x07\x6b\x57\xa6"
        "\xce\xb0\x03\x9f\x1f\xa5\x7b\x07\xb2\x87\xe0\xc5\x70\xb5\xd0\x02\xa1"
        "\x49\x6d\xbd\x19\x33\x1f\xf5\xcc\x69\xe4\x5a\x2e\x93\x22\x01\x4d\xc6"
        "\x3f\x14\x56\x5a\x67\xea\x9e\xf0\x45\xb6\x4c\xd9\x1a\x8b\x06\xa4\xf0"
        "\x3a\xe5\xb2\xeb\x16\x88\x7e\x77\x84\x33\xa1\x18\xb6\x7c\x55\xe9\x82"
        "\x2a\x36\xc1\xba\x25\x92\x24\xd6\x16\x23\xb9\x17\x15\x38\x37\x5a\x28"
        "\x1f\x1c\xa5\x51\xc5\xac\x47\x2c\xc6\xf6\x13\xaf\x6c\x9f\x40\x6a\xf1"
        "\x74\x91\x71\x69\xc6\x86\xfa\xe8\x11\x2f\x95\xcb\x66\xd5\x37\x07\x00"
        "\x00\x00\x88\x70\xf6\x54\x85\xe4\xd9\xb4\x3c\x2a\xbf\x75\x16\x0f\x81"
        "\xea\xe6\xcb\xf6\xd1\x48\x29\x00\x1e\x07\x13\x34\xe6\x01\xb1\x95\xe3"
        "\x68\x8b\xc4\x2f\xf7\x11\xeb\xf1\x33\xfc\x6d\xc6\x93\x97\xfc\x7c\xd7"
        "\x46\xf5\xbc\x4f\x1e\x1e\x49\x5d\x7a\x89\xb4\x20\x6a\x02\x1b\x97\xc6"
        "\x68\x65\x8d\x35\xa5\xcd\xc0\x79\xae\xb8\x33\xc8\x62\xad\xae\x92\xee"
        "\xfb\x2a\xfa\x69\x4a\x4b\xf1\xcd\x55\x0e\x27\x08\x01\x82\xde\x50\x02"
        "\x7a\xcc\x51\xa4\x90\xac\xb2\x94\x41\x48\x80\xda\x61\x82\x34\xd9\x4c"
        "\xdd\x31\x29\x37\x7a\x81\x74\x93\x30\x3b\xb8\x18\xc8\xfd\x55\x2b\x0b"
        "\x32\x40\xb9\xa3\xf9\x17\x32\xf0\xd0\xfa\x62\x2b\xee\xae\x9d\xbf\xef"
        "\xdb\x4e\x3e\xf6\x8b\xc0\xed\xa9\x41\x01\xea\xb1\x2d\x1e\xb3\x8f\xd8"
        "\xd0\x82\x07\x73\x4d\x30\x24\x1f\x53\x3e\x13\x9d\xd4\x71\x2b\x18\x35"
        "\x52\x0c\xa6\x79\xec\x3a\x31\xfc\xc1\x1d\x92\x9b\x7b\xf1\x5f\x6a\x88"
        "\xcc\xfa\x24\x4d\x04\xb0\xf8\x32\x1f\x28\xed\xd9\xdb\x9b\xed\x20\x1f"
        "\x25\xc4\x28\xee\xf8\xc7\xf1\xb6\x56\x0f\xf1\x2d\x39\xd7\x04\xb4\x68"
        "\x19\xab\x7a\xd1\x97\x99\xff\x8e\xd4\x5f\x55\x33\xac\xbc\xb0\xad\xdf"
        "\xe1\xa2\x16\x90\x05\x39\xac\x23\xfc\x0b\x0d\xf8\x8a\x13\xb8\xb8\x15"
        "\x31\x1a\x2a\xeb\xad\x5b\xd5\x7a\xd6\x2f\x3f\x04\x2b\x96\x14\xbc\x40"
        "\x92\xd5\x30\xa6\x09\x99\x89\x3d\x48\xf3\xe9\x94\xec\xfa\x67\x7c\x1d"
        "\x16\x3e\x4d\xda\x0e\x53\x04\x6c\x76\x1b\x98\x67\xa8\x72\xb9\x10\xdf"
        "\x3e\xe1\x07\xb2\xbc\xc3\x32\xaa\x32\x6b\xae\x7f\x59\x56\x51\x1c\x12"
        "\x54\xec\xcb\x7a\xc8\xa5\x1d\x92\xc0\xdd\x65\x17\x65\x52\x76\x38\x68"
        "\x16\x7e\x1c\xb1\xad\x24\x33\x02\xbd\xa2\x53\xc8\xd7\xd7\xb1\x84\x49"
        "\xe5\xcb\xd2\x62\x99\xac\x94\xb0\xe1\x5a\xd0\x00\x15\xeb\xda\x7b\x71"
        "\x38\x1e\x98\xf1\x95\x57\x87\x5e\x32\x8b\xa5\x59\xfa\xf3\xe0\xcc\xa4"
        "\x29\x78\xa5\x3a\x9b\xc8\xa8\x3c\xc0\x78\xe4\x1b\x02\xbd\xe6\x9a\x9e"
        "\x7d\xd7\xb6\x5f\x76\xbd\x55\x7a\x32\x77\x7a\x27\xf3\x0a\x59\x20\xcf"
        "\x84\x49\xb5\x99\x5f\xf2\x27\xac\xe0\x2b\x9a\x1e\x61\x21\xb5\x7f\x50"
        "\x91\x6b\x05\x3f\xc7\x71\xf5\x87\xd0\x00\xcc\x3a\x09\xa2\x04\xc2\xcb"
        "\x2e\xcd\x51\x14\xc1\xd2\xfa\xd2\x39\x8a\x7f\x93\xa7\x8c\x9f\x8c\x3f"
        "\xc5\xa1\xcc\xda\x75\xd9\x8d\x62\x6c\x27\x11\x93\x76\xa6\x94\x1e\xe7"
        "\x88\x0e\x78\xe4\xb6\xf2\xc8\x92\xb0\xd6\xac\x1c\x72\xc0\x12\x0a\x15"
        "\xca\x80\x92\x5b\x47\x52\x13\xc7\xaf\x02\xaf\xfe\x33\x70\xc5\xa3\xcf"
        "\x9e\xb0\x92\xae\x1e\x4f\x74\x8b\xf7\x2b\x18\xc2\x2e\x61\x58\xcf\xe2"
        "\xd2\xb7\xac\x47\xca\xc3\xb1\x9e\x75\x80\x4e\x11\xb4\x08\xa0\xb9\x41"
        "\xc9\x5d\x6a\x14\xd0\x22\x02\x71\x28\xb6\x85\x8a\xdc\x39\xe3\x23\xd7"
        "\x65\x39\xca\x18\xe2\x51\x8f\x98\x7f\x69\x91\x93\x16\x60\xde\xc1\x12"
        "\x66\xda\xd0\xa5\x2f\x05\xd0\xdd\x07\xd6\xed\xe6\x01\x4c\x1d\x6c\x0a"
        "\xb0\x40\x7e\x3a\xb8\xc0\x58\x19\x03\x6e\x38\x36\x31\x63\x9b\xe1\x7b"
        "\x5a\xd0\xbc\x05\x5f\x06\x73\x28\x48\xde\xd6\xa8\x40\x0a\xa8\x2a\x9a"
        "\x8f\x69\x7b\x13\x7b\x4a\x77\xf2\x61\x4e\x22\x6c\xc1\x60\x81\x16\x72"
        "\x71\xe9\xf2\x54\xf2\xcf\x91\x0b\xea\x6e\x0a\xd2\x16\x2c\xb7\x4f\xe4"
        "\xe9\x6f\xa5\x0c\x6d\x9e\xc5\x56\xfd\x10\xc7\x7c\xa2\xbf\x5b\xfe\xb0"
        "\x7b\x36\xde\xf6\x8e\x3b\xd3\x77\xc4\x2e\xcb\x56\xfb\x93\x4a\xec\xfa"
        "\xd2\x05\xff\x35\x7b\x80\x89\xbe\x84\x25\x2b\xd0\x2e\x4a\x5c\xa8\xbc"
        "\xe3\x61\xbd\x22\x0e\x24\xfe\xe9\x81\xd6\x49\x6f\x6f\xf6\xcb\x95\x17"
        "\xff\xb2\x4a\x0e\xdc\x5f\x8a\xba\x80\x20\xb7\xea\x63\xf8\xae\x08\x6c"
        "\x18\xad\x2e\xcb\x22\xc9\x8f\x9c\x04\xdc\xee\xe1\x6e\x7f\x67\x8b\xf6"
        "\x4f\xfb\x7c\x54\x78\xd9\xed\x8e\xb9\x0f\x6d\x38\xca\x2e\x94\x13\xa8"
        "\x80\x96\xe2\xb1\xd6\x0c\x28\x50\x26\xe4\x4b\x38\xe8\xf3\x8a\x46\xc7"
        "\xaa\xc4\x6e\x03\x56\xbb\xf0\xea\x76\x7a\x34\xb7\x2b\x60\x82\x72\x51"
        "\xdb\xc8\xec\x3f\x73\x26\x55\xae\x2d\xd9\x64\x65\x6b\x7e\x50\x74\x28"
        "\x10\x12\x5d\xc7\x23\xf0\x4a\x1a\xac\x38\x22\xa7\xc5\x30\x8b\xca\x6f"
        "\x6e\x3c\x54\xa7\xd4\x6f\x09\xfc\x73\x1c\x92\x2d\x79\xd7\x7d\xc4\x76"
        "\xa3\x3a\x7d\xc7\x2e\xa1\x55\x45\x13\x6b\xeb\x55\x4d\x6f\xb1\x75\xef"
        "\xce\x5f\x59\x33\x21\xf8\x6e\x1b\x9a\x02\xef\xb5\xe7\x22\x12\x5a\xe6"
        "\x5d\x09\x00\x00\x00\x2a\xc9\xd1\x48\xb2\x6a\x35\xc1\xae\x2b\xfc\xde"
        "\x17\x8f\x7b\xb2\x31\x57\xe6\xf6\x5d\x60\xa7\x73\xe9\x95\x48\x68\xfc"
        "\x09\x1c\x71\x62\xaf\xc1\x67\x9d\x2d\xae\x94\x11\x61\x6d\x92\xbe\x97"
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        "\xb4\x6f\x44\xb5\x20\x3b\xae\x3c\xcc\xfc\xd9\x7b\x08\xb3\x51\xcb\xbe"
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        "\x4b\xe0\xec\x34\xc8\xcf\x17\x7b\xe9\xe9\xda\x34\xf0\xe1\x28\x07\x1e"
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        "\xef\x74\x36\x9c\xfc\xbe\x3d\x3b\x02\x8f\xc4\xaf\x39\xdd\x2f\x15\xec"
        "\x76\x38\x4f\x2d\x58\x4c\x54\xea\x41\x5c\x37\xd8\x15\xe6\xef\x1f\x01"
        "\xdb\x5b\xb4\xc7\xbf\x24\xfd\x9e\x12\xa1\x10\x59\x95\x92\x8c\x6d\xa5"
        "\x5d\x1f\x49\x2d\xd6\x39\x60\xda\x6b\x3a\x2e\x8e\x7c\xc3\xe1\xe3\x3e"
        "\x46\x5f\xea\xfa\x34\x85\x04\xd0\x8c\x43\x21\x2e\xd5\xf9\x75\xb2\x9a"
        "\x55\xa1\xe0\x52\x9e\x2d\x6b\x5a\x5a\x30\x17\xc2\x51\xb4\x08\x90\xf6"
        "\xaa\xc3\x72\x5c\xfa\x56\xe6\x67\xbb\x24\x34\xc1\x24\x3d\x79\x2f\xfb"
        "\x5f\x0a\xae\x6d\x25\xd0\x8e\x5d\x06\xdd\xd2\xb9\x3e\xc5\x4d\x18\x86"
        "\x80\xb6\x7b\x6a\x7c\x51\xf0\x26\x2c\xb5\x11\xd3\x07\x75\x7a\x69\xe6"
        "\x88\x98\xc9\x7c\x22\x0e\xeb\xd9\x77\x35\xe4\xee\x3d\x05\x00\xb3\xa2"
        "\xee\x27\xa3\xac\x44\xca\x03\x1c\xaf\xba\xe8\x7c\x90\x4b\xc5\x0c\xf5"
        "\xc7\x29\x79\x9a\x3f\x6d\xfc\x6e\xdb\x63\x61\x93\x35\x28\xf4\x06\xd5"
        "\xc2\x80\x56\xde\x1c\x61\x63\x0d\x7f\xa7\xba\x56\x4a\x01\x56\x84\xc0"
        "\x68\x48\xd2\x43\x55\x40\xad\x1d\x6e\xb4\xbd\x61\x55\x20\x06\x14\x79"
        "\x8e\x40\xdc\xb3\xe4\x94\xca\x57\x84\x51\xbd\xaa\xb3\x71\x69\x97\xa9"
        "\xf0\x43\xa9\x0a\x1f\xaf\x3f\xef\xba\x6b\xf4\x3d\x6e\x6d\x55\xbc\xeb"
        "\x47\xbe\xff\x2e\xaf\x5f\xcf\xbf\x66\xce\x99\xc9\xfe\x04\x56\xc5\xbb"
        "\x5f\x3b\xd4\x35\x8d\x02\xc4\xc4\xcb\x3e\x51\x4b\x7d\xb8\x92\x55\xdf"
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        "\xa4\x35\xc8\x1b\xdc\x00\xf4\x11\x40\xe7\x02\x30\x59\x2b\xe0\x90\xf0"
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        "\x76\x6d\x14\x8c\x21\x9f\x9c\xa6\x9d\x7c\x41\x72\xf6\x5b\x01\x65\xe4"
        "\xa0\x43\xdc\xc7\x95\x61\xd7\x58\x9f\xf0\x4f\x22\x4b\x56\x19\xf6\x65"
        "\x90\xf6\x77\x3c\x39\x97\x9e\xfb\x81\x25\x50\xdc\x19\x32\xb0\x15\x81"
        "\xe2\xe4\x1a\x1b\x61\x2b\x5f\x9c\xd0\xdc\x7b\x1b\x1b\xd2\x84\xb7\xad"
        "\xa3\xf4\x36\xc6\x3e\x89\x57\xe6\xa6\xca\x11\xc3\xf5\x3f\x23\xdd\xb2"
        "\xa9\x62\x41\x24\xec\xcd\xf9\xa1\x8a\xf2\x24\x33\x1a\x88\xd7\x91\x26"
        "\x68\xe4\x6f\x49\x4e\xee\x8f\x1f\xa0\xa5\xf2\x65\x62\xce\xb7\x6e\x54"
        "\x35\x3c\xdd\xd6\x16\xdb\x11\xa6\xee\x70\xb5\x23\x7e\x8a\xb8\x11\x15"
        "\x4e\x69\xcd\x5f\x72\x31\x32\xc7\x23\xf3\x7c\xd9\x8d\xb8\x73\x58\x35"
        "\x48\xb0\x85\x3a\x1c\x46\x52\xb7\x0c\xda\xd9\xa6\x9e\xd7\x6a\x28\xc7"
        "\xc7\x4f\x67\xa7\xbe\x39\x7c\xe1\xa8\xea\x57\x62\x89\x43\xd3\x47\xf9"
        "\x86\x14\x52\x5a\xb8\xf1\xd9\x1f\x07\xe6\x5b\xcb\x8e\xbe\x15\x28\x19"
        "\xcb\xd7\xd6\xb2\x36\x58\x5c\x31\xd3\x27\x08\x24\x09\xd6\x88\xed\xbc"
        "\xd0\x75\x7b\x75\x1d\xd2\x25\xc2\xb8\x31\x77\xe4\x56\xa9\x64\xff\xfc"
        "\xea\x05\xa3\x4c\x26\xc4\x48\x39\xc0\x73\x58\x00\x00\x00\x00",
        4588));
    NONFAILING(memcpy(
        (void*)0x20000840,
        "\x78\x9c\xec\xdd\xcd\x6b\x1c\xe5\x1f\x00\xf0\xef\x6c\x92\xa6\xbf\xb4"
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        "\x22\x58\x28\xe8\xd9\x76\xd9\x6c\x43\xcd\x6e\xb6\x64\x37\xa5\x09\x01"
        "\x2d\x22\x78\x11\x54\x3c\x08\x7a\xe9\xd9\x97\x7a\xf3\xea\xcb\x55\xff"
        "\x0b\x0f\xd2\x52\x35\x2d\x56\x3c\x48\x64\x36\xb3\xe9\xb6\xd9\x4d\x37"
        "\x6d\x92\x45\xf7\xf3\x81\xa7\x7d\x9e\x99\xd9\x3c\xf3\x9d\x67\x66\x9e"
        "\x67\x77\x86\x99\x00\xfa\xd6\x78\xfa\x4f\x2e\xe2\x50\x44\x7c\x90\x44"
        "\x8c\x66\xd3\x93\x88\x18\x6a\xe4\x06\x23\x4e\xac\x2f\x77\x6b\x75\xa5"
        "\x98\xa6\x24\xd6\xd6\x5e\xfb\x2d\x69\x2c\x73\x73\x75\xa5\x18\x2d\x9f"
        "\x49\x1d\xc8\x0a\x8f\x45\xc4\xf7\xef\x46\x1c\xce\x6d\xae\xb7\xb6\xb4"
        "\x3c\x57\x28\x97\x4b\x0b\x59\x79\xb2\x5e\x39\x3f\x59\x5b\x5a\x3e\x72"
        "\xae\x52\x98\x2d\xcd\x96\xe6\x8f\x4d\x4d\x4f\x1f\x3d\xfe\xec\xf1\x63"
        "\x3b\x17\xeb\x1f\x3f\x2d\x1f\xbc\xf6\xe1\xcb\x4f\x7d\x75\xe2\xaf\x77"
        "\x1e\xbd\xf2\xfe\x0f\x49\x9c\x88\x83\xd9\xbc\xd6\x38\x76\xca\x78\x8c"
        "\x67\xdb\x64\x28\xdd\x84\x77\x78\x69\xa7\x2b\xeb\xb1\xa4\xd7\x2b\xc0"
        "\x7d\x49\x0f\xcd\x81\xf5\xa3\x3c\x0e\xc5\x68\x0c\x34\x72\x00\xc0\x7f"
        "\xd9\x5b\x11\xb1\x06\x00\xf4\x99\x44\xff\x0f\x00\x7d\xa6\xf9\x3b\xc0"
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        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\xff\x0e\xff\x04\x00\x00\xff\xff\x3e\x07\x2a\x2f",
        1883));
    NONFAILING(syz_mount_image(
        /*fs=*/0x20001140, /*dir=*/0x200007c0, /*flags=*/0x2000480,
        /*opts=*/0x20004080, /*chdir=*/1, /*size=*/0x75b, /*img=*/0x20000840));
    break;
  case 1:
    NONFAILING(memcpy((void*)0x20000180, "./bus\000", 6));
    res = syscall(__NR_open, /*file=*/0x20000180ul, /*flags=*/0x143042ul,
                  /*mode=*/0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    syscall(__NR_ftruncate, /*fd=*/r[0], /*len=*/0x2007ffbul);
    break;
  case 3:
    NONFAILING(memcpy((void*)0x20000100, "./bus\000", 6));
    res = syscall(__NR_open, /*file=*/0x20000100ul, /*flags=*/0x1eb142ul,
                  /*mode=*/0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 4:
    syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20000300ul, /*len=*/0xcul);
    break;
  case 5:
    syscall(__NR_mmap, /*addr=*/0x20001000ul, /*len=*/0xa000ul,
            /*prot=*/0x800006ul, /*flags=*/0x11ul, /*fd=*/r[1], /*offset=*/0ul);
    break;
  case 6:
    NONFAILING(memcpy((void*)0x200001c0, "./bus\000", 6));
    res =
        syscall(__NR_open, /*file=*/0x200001c0ul, /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[2] = res;
    break;
  case 7:
    NONFAILING(*(uint64_t*)0x20000040 = 0);
    NONFAILING(*(uint64_t*)0x20000048 = 0);
    NONFAILING(*(uint64_t*)0x20000050 = 0x77359400);
    NONFAILING(*(uint64_t*)0x20000058 = 0);
    syscall(__NR_utimes, /*filename=*/0ul, /*times=*/0x20000040ul);
    break;
  case 8:
    syscall(__NR_read, /*fd=*/r[2], /*buf=*/0x20005280ul, /*len=*/0xeffdul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  setup_sysctl();
  setup_usb();
  install_segv_handler();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}