// https://syzkaller.appspot.com/bug?id=fcf0b68b63113416159649a5145d26759b9865ba
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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

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

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

static 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_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_binderfs();
  setup_fusectl();
}

static void setup_fusectl()
{
  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);
  if (getppid() == 1)
    exit(1);
  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);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

#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")) {
  }
}

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

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();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x20000040, "exfat\000", 6);
  memcpy((void*)0x20000180, "\351\037q\211Y\036\2223aK\000", 11);
  memcpy(
      (void*)0x20001b00,
      "\x78\x9c\xec\xdc\x0b\xb8\x4e\xd5\xf6\x30\xf0\x31\xe6\x9c\x8b\x4d\xd2\x9b"
      "\xe4\x3e\xc7\x1c\x8b\x37\x6d\x4c\x97\x24\xb9\x24\xc9\x25\x49\x92\x23\x49"
      "\x6e\x09\x21\x49\x92\x90\xdc\x6f\x49\x48\x42\xee\x49\xee\x21\xb9\x85\xe4"
      "\x7e\xbf\xe5\x9e\x24\x49\x92\x24\x24\x24\x99\xdf\xe3\x9c\xce\xd7\x39\xa7"
      "\xf3\xff\xf7\xf5\xff\xf7\x7d\x9e\xef\xbf\xc7\xef\x79\xd6\xf3\xce\xf1\xae"
      "\x77\xcc\x35\xe6\x1e\x7b\xef\x77\xad\xb5\x9f\x77\x7f\xd3\x61\x48\xe5\xba"
      "\x55\x2a\xd4\x66\x66\xf8\x6f\xc1\xbf\x3d\x74\x07\x80\x14\x00\xe8\x0f\x00"
      "\xd7\x01\x40\x04\x00\x25\xb2\x94\xc8\x72\x65\x7f\x06\x8d\xdd\xff\x7b\x07"
      "\x11\x7f\xae\x87\xa6\x5f\xed\x0a\xc4\xd5\x24\xfd\x4f\xdb\xa4\xff\x69\x9b"
      "\xf4\x3f\x6d\x93\xfe\xa7\x6d\xd2\xff\xb4\x4d\xfa\x9f\xb6\x49\xff\xd3\x36"
      "\xe9\xbf\x10\x69\xd9\xf6\x19\x39\xaf\x97\x2d\xed\x6e\x72\xff\x3f\x2d\x93"
      "\xf7\xff\xff\x41\x8e\x16\x1e\xfb\xc5\xc6\xc2\x37\x76\xfc\x03\x29\xd2\xff"
      "\xb4\x4d\xfa\x9f\xb6\x49\xff\xd3\x36\xe9\x7f\xda\x26\xfd\x4f\xdb\xa4\xff"
      "\x69\x9b\xf4\x3f\x6d\x93\xfe\x0b\x91\x96\xfd\xd7\xef\x1d\xcb\xdf\x0e\xfe"
      "\x27\x6c\x57\xfb\xfb\x4f\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21"
      "\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42"
      "\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84"
      "\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08"
      "\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10"
      "\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21"
      "\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42"
      "\x08\x21\x84\x10\x42\x08\x21\x44\xda\x70\x21\xfc\xca\x00\xc0\xdf\xc7\x57"
      "\xbb\x2e\x21\x84\x10\x42\x08\x21\x84\x10\x42\xfc\x79\x42\xfa\xab\x5d\x81"
      "\x10\x42\x08\x21\x84\x10\x42\x08\x21\xfe\xef\x43\x50\xa0\xc1\x40\x04\xe9"
      "\x20\x3d\xa4\x40\x06\xc8\x08\xd7\x40\x26\xb8\x16\x32\xc3\x75\x90\x80\xeb"
      "\x21\x0b\xdc\x00\x59\xe1\x46\xc8\x06\xd9\x21\x07\xe4\x84\x5c\x90\x1b\xf2"
      "\x80\x05\x02\x07\x0c\x31\xe4\x85\x7c\x90\x84\x9b\x20\x3f\xdc\x0c\xa9\x50"
      "\x00\x0a\x42\x21\xf0\x50\x18\x8a\x40\x51\x28\x06\xb7\x40\x71\xb8\x15\x4a"
      "\xc0\x6d\x50\x12\x6e\x87\x52\x50\x1a\xca\x40\x59\xb8\x03\xca\xc1\x9d\x50"
      "\x1e\xee\x82\x0a\x70\x37\x54\x84\x4a\x50\x19\xaa\xc0\x3d\x50\x15\xee\x85"
      "\x6a\x70\x1f\x54\x87\xfb\xa1\x06\x3c\x00\x35\xe1\x41\xa8\x05\x7f\x81\xda"
      "\xf0\x10\xd4\x81\x87\xa1\x2e\x3c\x02\xf5\xe0\x51\xa8\x0f\x0d\xa0\x21\x34"
      "\x82\xc6\xff\xa5\xfc\x17\xa0\x0b\xbc\x08\x5d\xa1\x1b\x74\x87\x1e\xd0\x13"
      "\x7a\x41\x6f\xe8\x03\x7d\xa1\x1f\xf4\x87\x97\x60\x00\xbc\x0c\x03\xe1\x15"
      "\x18\x04\x83\x61\x08\xbc\x0a\x43\xe1\x35\x18\x06\xaf\xc3\x70\x18\x01\x23"
      "\xe1\x0d\x18\x05\xa3\x61\x0c\x8c\x85\x71\x30\x1e\x26\xc0\x9b\x30\x11\xde"
      "\x82\x49\xf0\x36\x4c\x86\x29\x30\x15\xa6\xc1\x74\x98\x01\x33\xe1\x1d\x98"
      "\x05\xb3\x61\x0e\xbc\x0b\x73\xe1\x3d\x98\x07\xf3\x61\x01\x2c\x84\x45\xf0"
      "\x3e\x2c\x86\x25\xb0\x14\x3e\x80\x65\xf0\x21\x2c\x87\x15\xb0\x12\x56\xc1"
      "\x6a\x58\x03\x6b\x61\x1d\xac\x87\x0d\xb0\x11\x36\xc1\x66\xd8\x02\x5b\x61"
      "\x1b\x6c\x87\x8f\x60\x07\xec\x84\x5d\xb0\x1b\xf6\xc0\x5e\xd8\x07\x1f\xc3"
      "\x7e\xf8\x04\x0e\xc0\xa7\x70\x10\x3e\xfb\x83\xf9\xe7\xff\x25\xbf\x23\x02"
      "\x02\x2a\x54\x68\xd0\x60\x3a\x4c\x87\x29\x98\x82\x19\x31\x23\x66\xc2\x4c"
      "\x98\x19\x33\x63\x02\x13\x98\x05\xb3\x60\x56\xcc\x8a\xd9\x30\x1b\xe6\xc0"
      "\x1c\x98\x0b\x73\x61\x1e\xcc\x83\x84\x84\x8c\x8c\x79\x31\x2f\x26\x31\x89"
      "\xf9\x31\x3f\xa6\x62\x2a\x16\xc4\x82\xe8\xd1\x63\x11\x2c\x82\xc5\xf0\x16"
      "\x2c\x8e\xc5\xb1\x04\x96\xc0\x92\x58\x12\x4b\x61\x69\x2c\x8d\x65\xb1\x2c"
      "\x96\xc3\x72\x58\x1e\xcb\x63\x05\xac\x80\x15\xb1\x22\x56\xc6\xca\x78\x0f"
      "\xde\x83\xf7\x62\x35\xac\x86\xd5\xb1\x3a\xd6\xc0\x1a\x58\x13\x6b\x62\x2d"
      "\xac\x85\xb5\xb1\x36\xd6\xc1\x3a\x58\x17\xeb\x62\x3d\xac\x87\xf5\xb1\x3e"
      "\x36\xc4\x86\xd8\x18\x1b\x63\x13\x6c\x82\x4d\xb1\x29\x36\xc7\xe6\xd8\x02"
      "\x5b\x60\x2b\x6c\x85\xad\xb1\x35\xb6\xc1\x36\xd8\x16\xdb\x62\x3b\x6c\x87"
      "\xed\xb1\x3d\x76\xc0\x0e\xd8\x11\x3b\x61\x27\x7c\x01\x5f\xc0\x17\xf1\x45"
      "\xec\x86\x15\x55\x0f\xec\x89\x3d\xb1\x37\xf6\xc6\xbe\xd8\x0f\xfb\xe1\x4b"
      "\x38\x00\x5f\xc6\x97\xf1\x15\x1c\x84\x83\x71\x08\xbe\x8a\xaf\xe2\x6b\x38"
      "\x0c\xcf\xe1\x70\x1c\x81\x23\x71\x24\x96\x53\xa3\x71\x0c\x8e\x45\x56\xe3"
      "\x71\x02\x4e\xc0\x89\x38\x11\x27\xe1\x24\x9c\x8c\x53\x70\x0a\x4e\xc3\xe9"
      "\x38\x03\x67\xe2\x4c\x9c\x85\xb3\x71\x36\xbe\x8b\x73\xf1\x3d\x7c\x0f\xe7"
      "\xe3\x7c\x5c\x88\x8b\x70\x11\x2e\xc6\x25\xb8\x14\x97\xe2\x32\x3c\x8f\xcb"
      "\x71\x05\xae\xc4\x55\xb8\x1a\xd7\xe0\x6a\x5c\x87\xeb\x71\x1d\x6e\xc4\x4d"
      "\xb8\x11\xb7\xe0\x16\xdc\x86\xdb\xf0\x23\xfc\x08\x77\xe2\x4e\xdc\x8d\xbb"
      "\x71\x2f\x1a\x00\xfc\x18\x3f\xc1\x4f\x70\x10\x1e\xc4\x83\x78\x08\x0f\xe1"
      "\x61\x3c\x8c\x47\xf0\x08\x1e\xc5\xa3\x78\x0c\x8f\xe1\x71\x3c\x8e\x27\xf0"
      "\x04\x9e\xc4\x93\x78\x0a\x4f\xe3\x19\x3c\x8d\x67\xf1\x2c\x9e\xc3\xf3\x78"
      "\x01\x2f\xe0\x45\xbc\x88\x97\xf0\xb9\x5c\x5f\xd5\xd9\x5b\x60\xc3\x20\x50"
      "\x57\x18\x65\x54\x3a\x95\x4e\xa5\xa8\x14\x95\x51\x65\x54\x99\x54\x26\x95"
      "\x59\x65\x56\x09\x95\x50\x59\x54\x16\x95\x55\x65\x55\xd9\x54\x36\x95\x43"
      "\xe5\x50\xb9\x54\x2e\x95\x47\xe5\x51\xa4\x48\xb1\x8a\x55\x5e\x95\x57\x25"
      "\x55\x52\xe5\x57\xf9\x55\xaa\x4a\x55\x05\x55\x41\xe5\x95\x57\x45\x54\x11"
      "\x55\x4c\x15\x53\xc5\x55\x71\x55\x42\xdd\xa6\x4a\xaa\xdb\x55\x29\x55\x5a"
      "\x35\xf3\x65\x55\x59\x55\x4e\x35\xf7\xe5\xd5\x5d\xaa\x82\xaa\xa0\x2a\xaa"
      "\x4a\xaa\xb2\xaa\xa2\xaa\xa8\xaa\xaa\xaa\xaa\xa6\xaa\xa9\xea\xaa\xba\xaa"
      "\xa1\x6a\xa8\x9a\xea\x41\x55\x4b\xf5\xc0\xbe\xf8\x90\xba\xd2\x99\xba\x6a"
      "\x30\xd6\x53\x43\xb0\xbe\x6a\xa0\x1a\xaa\x46\xea\x35\x7c\x4c\x35\x51\xc3"
      "\xb0\xa9\x6a\xa6\x9a\xab\x27\xd4\x08\x1c\x8e\xad\x54\x13\xdf\x5a\x3d\xa5"
      "\xda\xa8\x31\xd8\x56\x3d\xa3\xc6\xe2\xb3\xaa\xbd\x1a\x8f\x1d\xd4\xf3\xaa"
      "\xa3\xea\xa4\x3a\xab\x17\x54\x17\xd5\xd4\x77\x55\xdd\xd4\x64\xec\xa1\x7a"
      "\xaa\x69\xd8\x5b\xf5\x51\x7d\x55\x3f\x35\x0b\x2b\xa9\x2b\x1d\xab\xac\x5e"
      "\x51\x83\xd4\x60\x35\x44\xbd\xaa\x16\xe2\x6b\x6a\x98\x7a\x5d\x0d\x57\x23"
      "\xd4\x48\xf5\x86\x1a\xa5\x46\xab\x31\x6a\xac\x1a\xa7\xc6\xab\x09\xea\x4d"
      "\x35\x51\xbd\xa5\x26\xa9\xb7\xd5\x64\x35\x45\x4d\x55\xd3\xd4\x74\x35\x43"
      "\xcd\x54\xef\xa8\x59\x6a\xb6\x9a\xa3\xde\x55\x73\xd5\x7b\x6a\x9e\x9a\xaf"
      "\x16\xa8\x85\x6a\x91\x7a\x5f\x2d\x56\x4b\xd4\x52\xf5\x81\x5a\xa6\x3e\x54"
      "\xcb\xd5\x0a\xb5\x52\xad\x52\xab\xd5\x1a\xb5\x56\xad\x53\xeb\xd5\x06\xb5"
      "\x51\x6d\x52\x9b\xd5\x16\xb5\x55\x6d\x53\xdb\xd5\x47\x6a\x87\xda\xa9\x76"
      "\xa9\xdd\x6a\x8f\xda\xab\xf6\xa9\x8f\xd5\x7e\xf5\x89\x3a\xa0\x3e\x55\x07"
      "\xd5\x67\xea\x90\xfa\x5c\x1d\x56\x5f\xa8\x23\xea\x4b\x75\x54\x7d\xa5\x8e"
      "\xa9\xaf\xd5\x71\xf5\x8d\x3a\xa1\xbe\x55\x27\xd5\x77\xea\x94\x3a\xad\xce"
      "\xa8\xef\xd5\x59\xf5\x83\x3a\xa7\xce\xab\x0b\xea\x47\x75\x51\xfd\xa4\x2e"
      "\xa9\x9f\xd5\x65\x15\x14\x68\xd4\x4a\x6b\x6d\x74\xa4\xd3\xe9\xf4\x3a\x45"
      "\x67\xd0\x19\xf5\x35\x3a\x93\xbe\x56\x67\xd6\xd7\xe9\x84\xbe\x5e\x67\xd1"
      "\x37\xe8\xac\xfa\x46\x9d\x4d\x67\xd7\x39\x74\x4e\x9d\x4b\xe7\xd6\x79\xb4"
      "\xd5\xa4\x9d\x66\x1d\xeb\xbc\x3a\x9f\x4e\xea\x9b\x74\x7e\x7d\xb3\x4e\xd5"
      "\x05\x74\x41\x5d\x48\x7b\x5d\x58\x17\xd1\x45\x75\x31\x7d\x8b\x2e\xae\x6f"
      "\xd5\x25\xf4\x6d\xba\xa4\xbe\x5d\x97\xd2\xa5\x75\x19\x5d\x56\xdf\xa1\xcb"
      "\xe9\x3b\x75\x79\x7d\x97\xae\xa0\xef\xd6\x15\x75\x25\x5d\x59\x57\xd1\xf7"
      "\xe8\xaa\xfa\x5e\x5d\x4d\xdf\xa7\xab\xeb\xfb\x75\x0d\xfd\x80\xae\xa9\x1f"
      "\xd4\xb5\xf4\x5f\x74\x6d\xfd\x90\xae\xa3\x1f\xd6\x75\xf5\x23\xba\x9e\x7e"
      "\x54\xd7\xd7\x0d\x74\x43\xdd\x48\x37\xd6\x8f\xe9\x26\xfa\x71\xdd\x54\x37"
      "\xd3\xcd\xf5\x13\xba\x85\x6e\xa9\x5b\xe9\x27\x75\x6b\xfd\x94\x6e\xa3\x9f"
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      "\x5e\xc1\x2b\x79\x15\xaf\xe6\x35\xbc\x96\xd7\xf1\x7a\xde\xc0\x1b\x79\x13"
      "\x6f\xe6\x2d\xbc\x95\xb7\xf1\x76\xfe\x88\x77\xf0\x4e\xde\xc5\xbb\x79\x0f"
      "\xef\xe5\x7d\xfc\x31\xef\xe7\x0c\xbf\xfc\xc0\x7d\xc6\x87\xf8\x73\x3e\xcc"
      "\x5f\xf0\x11\xfe\x92\x8f\xf2\x57\x7c\x8c\xbf\xe6\xe3\xfc\x0d\x9f\xe0\x6f"
      "\xf9\x24\x7f\xc7\xa7\xf8\x34\x9f\xe1\xef\xf9\x2c\xff\xc0\xe7\xf8\x3c\x5f"
      "\xe0\x1f\xf9\x22\xff\xc4\x97\xf8\x67\xbe\xcc\x81\x21\xc6\x58\xc5\x3a\x36"
      "\x71\x14\xa7\x8b\xd3\xc7\x29\x71\x86\x38\x63\x7c\x4d\x9c\x29\xbe\x36\xce"
      "\x1c\x5f\x17\x27\xe2\xeb\xe3\x2c\xf1\x0d\x71\xd6\xf8\xc6\x38\x5b\x9c\x3d"
      "\xce\x11\xe7\x8c\x73\xc5\xb9\xe3\x3c\xb1\x8d\x29\x76\x31\xc7\x71\x9c\x37"
      "\xce\x17\x27\xe3\x9b\xe2\xfc\xf1\xcd\x71\x6a\x5c\x20\x2e\x18\x17\x8a\x7d"
      "\x5c\x38\x2e\x12\x17\x8d\x8b\xc5\xb7\xc4\xc5\xe3\x5b\xe3\x12\xf1\x6d\x71"
      "\xc9\xf8\xf6\xb8\x54\x5c\x3a\x7e\xe4\xfe\xb2\xf1\x1d\x71\xb9\xf8\xce\xb8"
      "\x7c\x7c\x57\x5c\x21\xbe\x3b\xae\x18\x57\x8a\x2b\xc7\x55\xe2\x7b\xe2\xaa"
      "\xf1\xbd\x71\xb5\xf8\xbe\xb8\x7a\x7c\x7f\x5c\x3c\x7e\x20\xae\x19\x3f\x18"
      "\xc3\x2f\x9f\x57\xa9\x13\x3f\x1c\xd7\x8d\x1f\x89\xeb\xc5\x8f\xc6\xf5\xe3"
      "\x06\x71\xc3\xb8\x51\xdc\x38\x7e\x2c\x6e\x12\x3f\x1e\x37\x8d\x9b\xc5\xcd"
      "\xe3\x27\xe2\x16\x71\xcb\xb8\x55\xfc\x64\xdc\x3a\x7e\x2a\x6e\x13\x3f\xfd"
      "\xbb\xfb\xbb\xc7\x3d\xe2\x9e\x71\xaf\xb8\x57\x1c\xc2\x7d\x7a\x41\x72\x61"
      "\x72\x51\xf2\xfd\xe4\xe2\xe4\x92\xe4\xd2\xe4\x07\xc9\x65\xc9\x0f\x93\xcb"
      "\x93\x2b\x92\x2b\x93\xab\x92\xab\x93\x6b\x92\x6b\x93\xeb\x92\xeb\x93\x1b"
      "\x92\x1b\x93\x9b\x92\x9b\x93\x5b\x92\x5b\x93\xdb\x92\x21\x54\x49\x0f\x1e"
      "\xbd\xf2\xda\x1b\x1f\xf9\x74\x3e\xbd\x4f\xf1\x19\x7c\x46\x7f\x8d\xcf\xe4"
      "\xaf\xf5\x99\xfd\x75\x3e\xe1\xaf\xf7\x59\xfc\x0d\x3e\xab\xbf\xd1\x67\xf3"
      "\xd9\x7d\x0e\x9f\xd3\xe7\xf2\xb9\x7d\x1e\x6f\x3d\x79\xe7\xd9\xc7\x3e\xaf"
      "\xcf\xe7\x93\xfe\x26\x9f\xdf\xdf\xec\x53\x7d\x01\x5f\xd0\x17\xf2\xde\x17"
      "\xf6\x45\x7c\x23\xdf\xd8\x37\xf6\x4d\xfc\xe3\xbe\xa9\x6f\xe6\x9b\xfb\x27"
      "\xfc\x13\xbe\xa5\x6f\xe9\x9f\xf4\x4f\xfa\xa7\x7c\x1b\xff\xb4\x6f\xeb\x9f"
      "\xf1\xed\xfc\xb3\xbe\xbd\x7f\xce\x3f\xe7\x9f\xf7\x1d\x7d\x27\xdf\xd9\xbf"
      "\xe0\xbb\xf8\x17\x7d\x57\xdf\xcd\x77\xf7\xdd\x7d\x4f\xdf\xd3\xf7\xf6\xbd"
      "\x7d\x5f\xdf\xd7\xf7\xf7\xfd\xfd\x00\x3f\xc0\x0f\xf4\x03\xfd\x20\x3f\xc8"
      "\x0f\xf1\x43\xfc\x50\x3f\xd4\x0f\xf3\xc3\xfc\x70\x3f\xdc\x8f\xf4\x23\xfd"
      "\x28\x3f\xca\x8f\xf1\x63\xfc\x38\x3f\xce\x4f\xf0\x13\xfc\x44\x3f\xd1\x4f"
      "\xf2\x93\x7c\x04\x00\x53\xfd\x54\x3f\xdd\x4f\xf7\x33\xfd\x4c\x3f\xcb\xcf"
      "\xf2\x73\xfc\x1c\x3f\x37\x75\xae\x9f\xe7\xe7\xf9\x05\x7e\x81\x5f\xe4\x17"
      "\xf9\xc5\x7e\xb1\x5f\xea\x97\xfa\x65\x7e\x99\x5f\xee\x97\xfb\x95\x7e\xa5"
      "\x5f\xed\x57\xfb\xb5\x7e\xad\x5f\xef\xd7\xfb\x8d\x7e\xa3\xdf\xec\x37\xfb"
      "\xad\x7e\xab\xdf\xee\xb7\xfb\x1d\x7e\x87\xdf\xe5\x77\xf9\x3d\x7e\x8f\xdf"
      "\xe7\xf7\xf9\xfd\x7e\xbf\x3f\xe0\x0f\xf8\x83\xfe\xa0\x3f\xe4\x0f\xf9\xc3"
      "\xfe\xb0\x3f\xe2\xbf\xf4\x47\xfd\x57\xfe\x98\xff\xda\x1f\xf7\xdf\xf8\x13"
      "\xfe\x5b\x7f\xd2\x7f\xe7\x4f\xf9\xd3\xfe\x8c\xff\xde\x9f\xf5\x3f\xf8\x73"
      "\xfe\xbc\xbf\xe0\x7f\xf4\x17\xfd\x4f\xfe\x92\xff\xd9\x5f\xf6\xc1\x4f\x48"
      "\xbc\x99\x98\x98\x78\x2b\x31\x29\xf1\x76\x62\x72\x62\x4a\x62\x6a\x62\x5a"
      "\x62\x7a\x62\x46\x62\x66\xe2\x9d\xc4\xac\xc4\xec\xc4\x9c\xc4\xbb\x89\xb9"
      "\x89\xf7\x12\xf3\x12\xf3\x13\x0b\x12\x0b\x13\x8b\x12\xef\x27\x16\x27\x96"
      "\x24\x96\x26\x3e\x48\x2c\x4b\x7c\x98\x58\x9e\x58\x91\x58\x99\x58\x95\x58"
      "\x9d\x58\x63\x20\xe4\xde\x11\x87\xbc\x21\x5f\x48\x86\x9b\x42\xfe\x70\x73"
      "\x48\x0d\x05\x42\xc1\x50\x28\xf8\x50\x38\x14\x09\x45\x43\xb1\x70\x4b\x28"
      "\x1e\x6e\x0d\x25\xc2\x6d\xa1\x64\xb8\x3d\x94\x0a\xa5\x43\x99\xf0\x68\xa8"
      "\x1f\x1a\x84\x86\xa1\x51\x68\x1c\x1e\x0b\x4d\xc2\xe3\xa1\x69\x68\x16\x9a"
      "\x87\x27\x42\x8b\xd0\x32\xb4\x0a\x4f\x86\xd6\xe1\xa9\xd0\x26\x3c\x1d\xda"
      "\x86\x67\x42\xbb\xf0\x6c\x68\x1f\x9e\x0b\x1d\xc2\xf3\xa1\x63\xe8\x14\x3a"
      "\x87\x17\x42\x97\xf0\x62\xe8\x1a\xba\x85\xee\xa1\x47\xe8\x19\x7a\x85\xde"
      "\xa1\x4f\xe8\x1b\xfa\x85\xfe\xe1\xa5\x30\x20\xbc\x1c\x06\x86\x57\xc2\xa0"
      "\x30\x38\x0c\x09\xaf\x86\xa1\xe1\xb5\x30\x2c\xbc\x1e\x86\x87\x11\x61\x64"
      "\x78\x23\x8c\x0a\xa3\xc3\x98\x30\x36\x8c\x0b\xe3\xc3\x84\xf0\x66\x98\x18"
      "\xde\x0a\x93\xc2\xdb\x61\x72\x98\x12\xa6\x86\x69\x61\x7a\x98\x11\x66\x86"
      "\x77\xc2\xac\x30\x3b\xcc\x09\xef\x86\xb9\xe1\xbd\x30\x2f\xcc\x0f\x0b\xc2"
      "\xc2\xb0\x28\xbc\x1f\x16\x87\x25\x61\x69\xf8\x20\x2c\x0b\x1f\x86\xe5\x61"
      "\x45\x58\x19\x56\x85\xd5\x61\x4d\x58\x1b\xd6\x85\xf5\x61\x43\xd8\x18\x36"
      "\x85\xcd\x61\x4b\xd8\x1a\xb6\x85\xed\xe1\xa3\xb0\x23\xec\x0c\xbb\xc2\xee"
      "\xb0\x27\xec\x0d\xfb\xc2\xc7\x61\x7f\xf8\x24\x1c\x08\x9f\x86\x83\xe1\xb3"
      "\x70\x28\x7c\x1e\x0e\x87\x2f\xc2\x91\xf0\x65\x38\x1a\xbe\x0a\xc7\xc2\xd7"
      "\xe1\x78\xf8\x26\x9c\x08\xdf\x86\x93\xe1\xbb\x70\x2a\x9c\x0e\x67\xc2\xf7"
      "\xe1\x6c\xf8\x21\x9c\x0b\xe7\xc3\x85\xf0\x63\xb8\x18\x7e\x0a\x97\xc2\xcf"
      "\xe1\xf2\x1f\xfc\xcc\x5a\xa5\x3f\xf3\x16\xba\x10\x42\x08\x21\xc4\xff\x47"
      "\x7a\xfd\xce\xfe\x1e\xff\xe6\x39\x03\x00\xea\x97\xf1\x4f\x21\x84\x6b\x77"
      "\xe6\x3c\xfa\x8f\xfb\x35\x00\x6c\xce\xf6\xb7\x71\x1f\x95\xab\x45\x02\x00"
      "\x9e\xea\xd6\xe1\xa1\xbf\x6f\x15\x2b\x76\xef\xde\xfd\x97\xd7\x2e\xd7\x10"
      "\xe5\x9b\x0f\x00\x89\x7f\x39\xc0\x2f\xf1\x0a\x68\x0e\x2d\xa1\x35\x34\x83"
      "\x62\xff\xb6\xbe\x3e\xaa\xd3\x45\xfe\x9d\xf9\x93\xb7\x01\x64\xfc\x87\x9c"
      "\x14\xf8\x35\xfe\x75\xfe\xcf\xff\x83\xf9\x1f\x7b\x62\xe4\xe2\x92\xf1\x85"
      "\x2c\xff\xc9\xfc\xf3\x01\x52\xf3\xfd\x9a\x73\xe5\x2a\xfc\xef\xf1\x0a\x68"
      "\x7e\x65\x35\xd0\x0c\x8a\xff\x07\xf3\x67\x6f\xf2\x3b\xf5\x67\xf8\x62\x02"
      "\x40\xd3\x7f\xc8\xc9\x04\x00\x4d\x33\xfc\x6b\xfd\x45\xe0\x71\x78\x1a\x5a"
      "\xff\xd3\x2b\x85\x10\x42\x08\x21\x84\x10\x42\x88\xbf\xe9\xa3\xca\xb4\xfb"
      "\xbd\xeb\xe7\x2b\xd7\xe7\xb9\xcc\xaf\x39\xe9\xe1\xd7\xf8\xf7\xae\xcf\x85"
      "\x10\x42\x08\x21\x84\x10\x42\x08\x71\xf5\x3d\xdb\xa9\xf3\x93\x8f\xb5\x6e"
      "\xdd\xac\x9d\x0c\x64\x20\x83\x34\x36\x68\xf9\x9f\xbc\xe6\x6a\xff\x66\x12"
      "\x42\x08\x21\x84\x10\x42\xfc\xd9\x7e\x3d\xe9\xff\xf5\xb9\x0c\x57\xb3\x20"
      "\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10"
      "\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21"
      "\x84\x10\x22\x0d\xfa\x7f\xf1\x9f\xc6\xae\xf6\x1a\x85\x10\x42\x08\x21\x84"
      "\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08"
      "\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10\x42\x08\x21\x84\x10"
      "\x42\x08\x21\x84\x10\x42\x88\xab\xed\x7f\x05\x00\x00\xff\xff\x0f\x98\x37"
      "\x7d",
      5383);
  syz_mount_image(
      /*fs=*/0x20000040, /*dir=*/0x20000180,
      /*flags=MS_I_VERSION|MS_POSIXACL|MS_RELATIME|MS_NOSUID|MS_NOEXEC*/
      0xa1000a, /*opts=*/0x200003c0, /*chdir=*/0x21, /*size=*/0x1507,
      /*img=*/0x20001b00);
  memcpy((void*)0x20000180, "./bus\000", 6);
  syscall(__NR_open, /*file=*/0x20000180ul,
          /*flags=O_TRUNC|O_SYNC|O_NOATIME|O_LARGEFILE|O_CREAT|O_RDWR|0x3c*/
          0x14927eul, /*mode=S_IROTH*/ 4ul);
  memcpy((void*)0x20000380, "/dev/loop", 9);
  *(uint8_t*)0x20000389 = 0x30;
  *(uint8_t*)0x2000038a = 0;
  memcpy((void*)0x20000140, "./bus\000", 6);
  syscall(__NR_mount, /*src=*/0x20000380ul, /*dst=*/0x20000140ul, /*type=*/0ul,
          /*flags=MS_BIND*/ 0x1000ul, /*data=*/0ul);
  memcpy((void*)0x20000040, "./bus\000", 6);
  res = syscall(__NR_open, /*file=*/0x20000040ul,
                /*flags=O_NOFOLLOW|O_LARGEFILE|FASYNC*/ 0x2a000ul,
                /*mode=S_IWGRP|S_IRGRP*/ 0x30ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x200007c0 = 0;
  *(uint64_t*)0x200007c8 = 0;
  *(uint64_t*)0x200007d0 = 0;
  *(uint64_t*)0x200007d8 = 2;
  *(uint64_t*)0x200007e0 = 0;
  *(uint32_t*)0x200007e8 = 0;
  *(uint32_t*)0x200007ec = 0;
  *(uint32_t*)0x200007f0 = 0;
  *(uint32_t*)0x200007f4 = 0;
  memcpy((void*)0x200007f8,
         "\xef\x35\x9f\x41\x3b\xb9\x38\x52\xf7\xd6\xa4\xae\x6d\xdd\xfb\xd1\xce"
         "\x5d\x29\xc2\xee\x5e\x5c\x9d\x00\x0f\xf8\xee\x09\xe7\x37\xff\x0e\xdf"
         "\x11\x0f\xf4\x11\x76\x39\xc2\xeb\x4b\x78\xc6\x6e\xe6\x77\xdf\x70\x19"
         "\x05\xb9\xaa\xfa\xb4\xaf\xaa\xf7\x55\xa3\xf6\xa0\x04",
         64);
  memcpy((void*)0x20000838,
         "\xcb\xa3\xd6\x27\x78\x08\x20\xd1\xcb\xf7\xdb\x71\x03\x82\xac\xeb\x38"
         "\xa0\xef\x8d\xa6\x56\x97\xe4\x29\x8d\x1e\x02\xdc\xb8\xeb\x8c\x6b\x10"
         "\x5d\x96\x00\xfd\xff\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x43\x8e\xa3\x59\x86\x6c\xfe\x1a\x00",
         64);
  memcpy((void*)0x20000878,
         "\xbe\x1d\x00\x00\xae\x9e\xf3\x0b\xea\x2a\x00\x40\x00\x01\x00\x00\x00"
         "\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         32);
  *(uint64_t*)0x20000898 = 0x4000000;
  *(uint64_t*)0x200008a0 = 0;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4c04, /*arg=*/0x200007c0ul);
  memcpy((void*)0x20000840, "memory.events.local\000", 20);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000840ul,
          /*flags=*/0x275a, /*mode=*/0);
}
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);
  const char* reason;
  (void)reason;
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}