// https://syzkaller.appspot.com/bug?id=fba3951b5d7fbc3a12d2bd1143275cf47578a850
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/futex.h>
#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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

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

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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

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

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

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

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

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

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

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, 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 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, loopfd = -1, 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) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    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) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  errno = err;
  return res;
}

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");
}

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 < 4; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done, 50 + (call == 0 ? 4000 : 0));
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20000600, "hfsplus\000", 8);
    memcpy((void*)0x20000140, "./file0\000", 8);
    memcpy(
        (void*)0x20000d00,
        "\x66\x6f\x72\x63\x65\x00\x00\x69\x61\xe3\x8c\x80\x00\x00\x00\x00\x00"
        "\x16\x00\x30\x30\x30\x30\x30\x30\x07\x3f\x41\x10\x1b\xb0\x30\x31\x39"
        "\x2c\x63\x72\x65\x61\x36\xd9\xbb\x3d\x25\xf4\xea\x83\x66\xa8\x71\x6c"
        "\xc2\x4c\xf9\x13\x02\x00\x5e\x72\x71\x24\x02\xbd\xc8\x02\x3a\x1c\xeb"
        "\x6c\xff\x75\x72\x4a\xcd\xc6\xbf\x74\x17\x01\x00\x53\x45\xd3\x7e\xc3"
        "\x7f\xb7\x82\x97\x50\x34\x06\x44\x60\x8b\xa8\x72\x92\xd3\xe1\x82\x1a"
        "\x70\x36\x46\x58\x4f\xb9\x46\xcf\x3b\x27\x7b\x74\xf3\xd9\x4d\x7f\x3f"
        "\x3b\x27\xb1\xb9\x53\xc9\x28\xa6\x3d\x77\x86\xe2\x3b\x2d\xcf\x98\xf4"
        "\xbb\xb4\x90\x3a\x06\xab\x8c\x62\x7b\x7b\xf4\xb1\xca\x08\xac\x07\xbc"
        "\x4a\xb9\x32\x8b\x87\x3f\xd8\xae\xba\xbb\x35\x96\x5f\x99\x7a\x19\x39"
        "\xb2\x3c\x87\x01\x48\x66\x7f\x5d\x6b\xeb\x1a\xca\x91\xb0\xae\xb7\x9f"
        "\x37\xab\x02\x81\x05\xde\x52\xe8\x43\xd1\xe3\xa0\x66\xb8\xf2\x50\x09"
        "\xb6\x91\xec\xa2\x0d\xbc\xe0\x03\x90\x10\xc8\x37\x91\xd1\xd7\x84\x7f"
        "\x51\x16\xb5\x44\xb9\xf3\x72\x66\x39\x13\xff\xa7\x89\xb2\x10\x26\x0b"
        "\xe4\x78\x0c\xa1\x1f\xdf\xed\x19\x1d\xf0\x7d\x52\xd6\x8d\xb9\x29\x63"
        "\xef\x8f\xbe\x85\x11\xae\x0c\xe4\xab\xce\x6a\xc1\x75\xd4\xb6\x51\x63"
        "\x98\x73\x78\x78\x83\xad\x79\x74\x47\x00\xe9\xeb\xbe\x4a\x0f\x56\x46"
        "\x75\xca\x9e\x56\xf4\xcc\xcc\xb9\xc7\x8f\x7c\xa8\x03\xd7\xc0\xf2\x66"
        "\xc3\xb5\xcb\x9b\x12\x0d\xd6\xe9\x26\xc5\xb8\x88\x08\xcc\x43\x53\x31"
        "\xa9\xa7\x5b\xb9\xf9\xca\x0f\x4d\x00\x56\xa1\x14\xda\xeb\x4c\x5e\x31"
        "\x71\xde\x79\xf9\x04\xf8\x5d\x1f\x7d\x0e\x91\x07\x00\xfd\xd8\x30\x51"
        "\xdb\xb6\xfc\xb2\x5b\x8d\x09\x96\x72\x93\x85\x5e\x13\xc0\xd4\xbb\x8e"
        "\xec\x9b\xf8\x1b\x53\x75\xdb\xe9\xec\xed\x05\xb5\xb6\x0c\xb8\xc9\xf1"
        "\x58\xf1\x8d\xed\xe7\x22\x46\x55\xe9\x01\x0c\x60\x31\x5b\x96\x45\xa7"
        "\x87\x67\xa5\xca\x8e\xbf\xd7\xd2\xd4\xe6\xae\x97\x06\x0a\xe9\xd5\x97"
        "\xe9\x5a\x5e\x62\x89\x7e\x9a\x38\x9d\x91\x43\xe6\xeb\x06\x9e\x03\x7c"
        "\x29\xb9\x75\x68\xc5\x90\x65\xc2\x93\xa5\x13\xbc\xd7\xfe\x78\x80\xf6"
        "\x67\x54\x64\xcb\xaa\x3b\x7d\x66\x0c\xe2\xe9\x76\x85\xd4\x11\x12\x8b"
        "\x72\xb6\xfa\x75\x0f\x3c\xec\xbb\x71\xd8\x62\x15\xb2\x6e\x66\xf6\x15"
        "\x51\x06\x9b\x4b\x16\xdf\xdc\x1f\x6e\x72\x5b\xd7\x5a\xa1\x87\x2c\xf6"
        "\xde\x46\x8d\xf0\x0b\xbc\x8b\xa4\xcc\x76\xd9\x71\xc6\xf1\xec\x9a\x1f"
        "\xbb\xa7\xb1\x1c\xbe\x38\x58\x59\x97\x2f\x41\xba\x4c\x2d\xd6\x30\x3f"
        "\xdb\x36\xd9\x82\x9c\x00\x7c\xba\x31\xa1\x50\xc2\xf0\x5d\x0a\xa8\x3f"
        "\xaf\x53\x36\xe0\x0b\x76\x9a\x5e\x41\x59\xa2\x2e\x38\x5e\x5f\x99\x12"
        "\xfa\x11\x39\x4a\x7d\x34\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x51\x5a\x1d\xf4\xbd\xe3\x7c\x43\xc5\x2c\xc1\xc1\xfd\x9d\x56\xb4"
        "\x6c\x3a\xd2\x40\xa7\x1f\x84\xc6\x42\x59\xfb\x0a\xdf\xd1\x24\x8f\xb8"
        "\xb8\x0d\xdc\x8b\x64\x1b\xdb\x68\x44\xee\xbe\x0d\xe4\x0e\xe1\x42\x0a"
        "\xc4\x20\xe0\xb1\xbc\x14\x4a\x36\xa8\x30\xf4\xa9\x15\xda\x40\x5e\x82"
        "\x9e\x12\x5e\x37\x2a\x05\x4c\x04\xf9\x5a\x30\x8f\x6a\x3a\xc1\x17\xf9"
        "\xc0\x0c\x08\x60\xf2\xb5\x14\x39\x1f\x69\x0e\xcd\x13\x82\x5d\xf0\x82"
        "\xa2\xfe\x91\x1f\xb2\x13\xbf\x01\xd4\x8f\xf7\xde\x7c\x76\xe4\x8a\x57"
        "\x5e\xda\x7d\x9b\x45\x92\xbe\xa4\xdc\x35\x64\x37\xfd\x36\xac\x83\x10"
        "\xb2\x6f\x6a\xeb\xae\x7c\x49\x72\x10\xbe\x33\xa4\x8c\xad\x1d\x55\x04"
        "\x92\x1a\xa0\x27\x4e\x19\x0d\x7a\xce\x37\x24\x32\x06\x9e\xb8\x06\x2a"
        "\x8e\xd7\x16\x57\x36\xd6\xde\x67\xc4\x3f\xd9\xa4\x28\xf1\xc1\x78\xf2"
        "\x89\x94\x9d\x93\xb8\x02\xac\x18\x76\x7b\x0d\xd3\x7f\x6b\x34\x96\x8e"
        "\xd6\x13\x3b\x50\x23\xd5\x45\x32\x51\x7d\x3b\x33\x01\x6b\x5e\xf7\xe8"
        "\xa0\x2e\xd6\x10\xb0\x47\x0a\x1b\xc4\x1c\x6c\x0b\xec\x66\xfe\x0a\xed"
        "\x6f\xdb\x25\x6e\x30\xa0\x7d\xe6\x6a\x57\x3d\x8b\x6d\xb3\x6f\xa7\xd3"
        "\x33\xca\xb7\x47\x00\x00\x00\x00\x00\x00\x00\x00\x00",
        863);
    memcpy(
        (void*)0x20000640,
        "\x78\x9c\xec\xdd\xbf\x6f\x1b\xe7\x19\x07\xf0\xef\xd1\x94\x6c\xba\x80"
        "\xa3\x24\x76\x62\x14\x01\x2a\xc4\x40\x5a\x54\xa8\x2d\x89\x50\x5a\x75"
        "\xa9\x5b\x14\x85\x86\xa0\x08\xd2\xa1\xb3\x60\xd3\x31\x61\x5a\x09\x24"
        "\xa6\x50\x82\xa2\x70\x7f\xaf\x1d\xf2\x07\xa4\x83\xb6\x4e\x05\xba\x1b"
        "\x48\xe7\x76\xcb\xaa\x31\x40\x81\x2e\x99\xb4\xb9\xb8\xe3\x51\x62\x2c"
        "\x59\xa1\x1c\xdb\xa4\xea\xcf\xc7\x78\xf9\xbe\x2f\xdf\xbb\xf7\x9e\x7b"
        "\x78\x77\xe4\x51\x30\x18\xe0\xb9\xb5\xb6\x90\xe6\xfd\x14\x59\x5b\x78"
        "\x6b\xbb\xec\xef\xee\xb4\x7b\xbb\x3b\xed\xb3\xf5\x70\x2f\x49\xd9\x6e"
        "\x24\xcd\x41\x95\x62\x23\x29\x3e\x4d\xae\x67\x50\x32\x33\x32\x5d\xf1"
        "\xa8\xed\x7c\xdc\x5d\x7d\xe7\xb3\x2f\x76\x3f\x1f\xf4\x9a\x75\xa9\x96"
        "\x6f\x1c\xb7\xde\x78\xee\xd5\x25\xf3\x49\xce\xd4\xf5\x61\x33\x8f\x35"
        "\xdf\x8d\x47\xce\x37\xae\x62\x7f\x0f\xcb\x84\x5d\x19\x26\x0e\x26\xed"
        "\xc1\x21\xf7\x4e\xb2\xfa\xd7\x3c\x6f\x81\x69\x50\x0c\xde\x37\x0f\x99"
        "\x4b\xce\x27\x39\x57\x7f\x0e\x48\x7d\x75\x68\x3c\xdb\xe8\x9e\xbc\x13"
        "\x5d\xe5\x00\x00\x00\xe0\x94\x7a\x61\x2f\x7b\xd9\xce\x85\x49\xc7\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\xa7\x49\xfd\xfb\xff\x45\x5d"
        "\x1a\xc3\xf6\x7c\x8a\xe1\xef\xff\xcf\xd6\xcf\xa5\x6e\x9f\x6a\xf7\x27"
        "\x1d\x00\x00\x00\x00\x00\x00\x00\x00\x3c\x01\xdf\xda\xcb\x5e\xb6\x73"
        "\x61\xd8\x7f\x50\x54\x7f\xf3\x7f\xbd\xea\x5c\xac\x1e\xbf\x91\x0f\xb2"
        "\x95\x4e\x36\x73\x35\xdb\x59\x4f\x3f\xfd\x6c\x66\x29\xc9\xdc\xc8\x44"
        "\xb3\xdb\xeb\xfd\xfe\xe6\xd2\x18\x6b\x2e\x1f\xb9\xe6\xf2\xb3\xd9\x5f"
        "\x00\x00\x00\x00\x00\x00\x00\xf8\x3f\xf5\xbb\xac\x1d\xfc\xfd\x1f\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa6\x41\x91\x9c\x19"
        "\x54\x55\xb9\x38\x6c\xcf\xa5\xd1\x4c\x72\x2e\xc9\x6c\xb9\xdc\xbd\xe4"
        "\xdf\xc3\xf6\x69\x76\x7f\xd2\x01\x00\x00\x00\xc0\x33\xf0\xc2\x5e\xf6"
        "\xb2\x9d\x0b\xc3\xfe\x83\xa2\xba\xe7\x7f\xa5\xba\xef\x3f\x97\x0f\xb2"
        "\x91\x7e\xba\xe9\xa7\x97\x4e\x6e\x56\xdf\x05\x0c\xee\xfa\x1b\xbb\x3b"
        "\xed\xde\xee\x4e\xfb\x6e\x59\x0e\xcf\xfb\xe3\xff\x9e\x28\x8c\x6a\xc6"
        "\x0c\xbe\x7b\x38\x7a\xcb\x97\xab\x25\x5a\xb9\x95\x6e\xf5\xcc\xd5\xdc"
        "\xc8\x7b\xe9\xe5\x66\x1a\xd5\x9a\xa5\xcb\xc3\x78\x8e\x8e\xeb\xb7\x65"
        "\x4c\xc5\x8f\x6a\x63\x46\x76\xb3\xae\xcb\x3d\xff\x4b\x5d\x4f\x87\xb9"
        "\x2a\x23\x33\xfb\x19\x59\xac\x63\x2b\xb3\xf1\xe2\xf1\x99\x38\xe1\xab"
        "\xf3\xf0\x96\x96\xd2\xd8\xff\xe6\xe7\xe2\x53\xc8\xf9\xf9\xba\x2e\xf7"
        "\xe7\x4f\x53\x9d\xf3\xe5\x91\xa3\xef\x95\xe3\x33\x91\x7c\xfb\x1f\x7f"
        "\xfb\xe5\xed\xde\xc6\x9d\xdb\xb7\xb6\x16\xa6\x67\x97\x1e\xd3\xc3\x99"
        "\x68\x8f\x64\xe2\xd5\xe7\x2a\x13\x8b\x55\x26\x2e\xed\xf7\xd7\xf2\xb3"
        "\xfc\x22\x0b\x99\xcf\xdb\xd9\x4c\x37\xbf\xca\x7a\xfa\xe9\x64\x3e\x3f"
        "\xad\x5a\xeb\xf5\xf1\x5c\x3e\xce\x1d\x9f\xa9\xeb\x5f\xea\xbd\xfd\x55"
        "\x91\xcc\xd6\xaf\xcb\xe0\x2a\x7a\xb2\x98\x5e\xaf\xd6\xbd\x90\x6e\x7e"
        "\x9e\xf7\x72\x33\x9d\xbc\x59\xfd\x5b\xce\x52\xbe\x9f\x95\xac\x64\x75"
        "\xe4\x15\xbe\x34\xc6\x59\xdf\x38\xd9\x59\x7f\xe5\x3b\x75\xa3\x95\xe4"
        "\xcf\x75\x3d\x1d\xca\xbc\xbe\x38\x92\xd7\xd1\x6b\xee\x5c\x35\x36\xfa"
        "\xcc\x41\x96\x5e\x7a\x74\x96\x8a\xc7\xbc\x36\x36\xbf\x59\x37\xca\x6d"
        "\xfc\xbe\xae\xa7\xc3\xc3\x99\x58\x1a\xc9\xc4\xcb\xc7\x1f\x2f\x7f\x7d"
        "\x50\x3e\x6e\xf5\x36\xee\x6c\xde\x5e\x7f\x7f\xcc\xed\xbd\x51\xd7\x65"
        "\x2a\xff\x38\x55\xef\x12\xe5\xf1\xf2\x52\xf9\x62\x55\xbd\x2f\x1f\x1d"
        "\xe5\xd8\xcb\x47\x8e\x2d\x55\x63\x17\xf7\xc7\x1a\x87\xc6\x2e\xed\x8f"
        "\x7d\xd5\x99\x3a\x5b\x7f\x86\x3b\x3c\xd3\x72\x35\xf6\xea\x91\x63\xed"
        "\x6a\xec\xf2\xc8\xd8\x51\x9f\xb7\x00\x98\x7a\xe7\xbf\x7b\x7e\xb6\xf5"
        "\x9f\xd6\xbf\x5a\x9f\xb4\xfe\xd0\xba\xdd\x7a\xeb\xdc\x4f\xce\xfe\xe0"
        "\xec\x6b\xb3\x99\xf9\xe7\xcc\x0f\x9b\x8b\x67\xde\x68\xbc\x56\xfc\x3d"
        "\x9f\xe4\x37\x07\xf7\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xe3\xdb\xfa\xf0"
        "\xa3\x3b\xeb\xbd\x5e\x67\x73\xc2\x8d\xa2\xfe\x21\x9f\x69\x89\x47\x43"
        "\xe3\xf9\x6e\x4c\xfa\xca\x04\x3c\x6d\xd7\xfa\x77\xdf\xbf\xb6\xf5\xe1"
        "\x47\xdf\xeb\xde\x5d\x7f\xb7\xf3\x6e\x67\x63\x66\x65\x65\x75\x71\x75"
        "\xe5\xcd\xf6\xb5\x5b\xdd\x5e\x67\x71\xf0\x38\xe9\x28\x81\xa7\xe1\xe0"
        "\x4d\x7f\xd2\x91\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe3\x7a\x16"
        "\xff\x9d\x60\xd2\xfb\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9c\x6e\x6b\x0b\x69"
        "\xde\x4f\x91\xa5\xc5\xab\x8b\x65\x7f\x77\xa7\xdd\x2b\xcb\xb0\x7d\xb0"
        "\x64\x33\x49\x23\x49\xf1\xeb\xa4\xf8\x34\xb9\x9e\x41\xc9\xdc\xc8\x74"
        "\xc5\xa3\xb6\xf3\x71\x77\xf5\x9d\xcf\xbe\xd8\xfd\xfc\x60\xae\xe6\x70"
        "\xf9\xc6\x71\xeb\x8d\xe7\x5e\x5d\x32\x9f\xe4\x4c\x5d\x3f\xa9\xf9\x6e"
        "\x7c\xed\xf9\x8a\xfd\x3d\x2c\x13\x76\x65\x98\x38\x98\xb4\xff\x05\x00"
        "\x00\xff\xff\x13\xed\x09\xe0",
        1503);
    syz_mount_image(0x20000600, 0x20000140, 0x2a00010, 0x20000d00, 3, 0x5df,
                    0x20000640);
    break;
  case 1:
    memcpy((void*)0x200001c0, "cgroup.controllers\000", 19);
    res = syscall(__NR_openat, 0xffffff9c, 0x200001c0ul, 0x275aul, 0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    syscall(__NR_write, r[0], 0x20001980ul, 0x208e280ul);
    break;
  case 3:
    memcpy((void*)0x200001c0, "cgroup.controllers\000", 19);
    syscall(__NR_openat, 0xffffff9c, 0x200001c0ul, 0x275aul, 0ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  setup_sysctl();
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}