// https://syzkaller.appspot.com/bug?id=a3ce4daaa6f6acbe41eb7ca4cb8e0c4e51f823d1
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif
#ifndef __NR_quotactl_fd
#define __NR_quotactl_fd 443
#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 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 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_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x200004c0, "ext4\000", 5);
  memcpy((void*)0x20000500, "./file0\000", 8);
  memcpy(
      (void*)0x20000540,
      "\x78\x9c\xec\xdd\xc1\x6f\x1b\x59\x19\x00\xf0\x6f\x26\x49\x93\xcd\x66\x37"
      "\x59\xd8\x03\x20\x60\xcb\xb2\x50\x50\x55\x3b\x71\xb7\x51\xd5\x0b\xe5\x02"
      "\x42\x55\x25\x44\xc5\x89\x43\x1b\x12\x37\x8a\x62\xc7\x51\xec\x94\x26\xf4"
      "\x90\xfe\x0f\x48\x54\xe2\x04\x7f\x02\x07\x24\x0e\x48\x3d\x71\xe7\x06\x37"
      "\x38\x94\x03\x52\x81\x0a\xd4\x20\x71\x30\x9a\xf1\x24\x4d\x13\x3b\x0d\x6d"
      "\x6a\x4b\xf1\xef\x27\x3d\xcd\xbc\x79\xae\xbf\xf7\x3a\x9a\xf7\xdc\xaf\x89"
      "\x5f\x00\x43\xeb\x7c\x44\xec\x44\xc4\xb9\x88\xb8\x13\x11\xd3\xc5\xf5\xa4"
      "\x28\x71\xbd\x53\xb2\xd7\x3d\x7f\xf6\x60\x71\xf7\xd9\x83\xc5\x24\xda\xed"
      "\x5b\xff\x48\xf2\xf6\xec\x5a\x1c\xf8\x33\x99\x77\x8b\xf7\x9c\x88\x88\x1f"
      "\x7c\x37\xe2\xc7\xc9\xd1\xb8\xcd\xad\xed\xd5\x85\x5a\xad\xba\x51\xd4\xcb"
      "\xad\xfa\x7a\xb9\xb9\xb5\x7d\x69\xa5\xbe\xb0\x5c\x5d\xae\xae\x55\x2a\xf3"
      "\x73\xf3\xb3\x57\x2f\x5f\xa9\x9c\xda\x58\x3f\xaa\xff\xfa\xe9\x77\x56\x6e"
      "\xfc\xf0\x77\xbf\xfd\xd2\x93\x3f\xec\x7c\xf3\xa7\x59\xb7\xa6\x8a\xb6\x83"
      "\xe3\x38\x4d\x9d\xa1\x8f\xed\xc7\xc9\x8c\x46\xc4\x8d\xb7\x11\x6c\x00\x46"
      "\x8a\xf1\x9c\x1b\x74\x47\x78\x2d\x69\x44\x7c\x26\x22\x3e\x2e\x9e\xff\x91"
      "\xfc\x6e\x02\x00\x67\x59\xbb\x3d\x1d\xed\xe9\x83\x75\x00\xe0\xac\x4b\xf3"
      "\x1c\x58\x92\x96\x8a\x5c\xc0\x54\xa4\x69\xa9\xd4\xc9\xe1\x7d\x18\x93\x69"
      "\xad\xd1\x6c\x5d\xbc\xdb\xd8\x5c\x5b\xea\xe4\xca\x66\x62\x2c\xbd\xbb\x52"
      "\xab\xce\x16\xb9\xc2\x99\x18\x4b\xb2\xfa\x5c\x7e\xfe\xa2\x5e\x39\x54\xbf"
      "\x1c\x11\x1f\x44\xc4\xcf\xc6\xdf\xc9\xeb\xa5\xc5\x46\x6d\x69\x90\x1f\x7c"
      "\x00\x60\x88\xbd\x7b\x68\xfd\xff\xf7\x78\x67\xfd\x07\x00\xce\xb8\x89\x41"
      "\x77\x00\x00\xe8\x3b\xeb\x3f\x00\x0c\x1f\xeb\x3f\x00\x0c\x1f\xeb\x3f\x00"
      "\x0c\x1f\xeb\x3f\x00\x0c\x1f\xeb\x3f\x00\x0c\x1f\xeb\x3f\x00\x0c\x95\xef"
      "\xdf\xbc\x99\x95\xf6\x6e\xf1\xfd\xd7\x4b\xf7\xb6\x36\x57\x1b\xf7\x2e\x2d"
      "\x55\x9b\xab\xa5\xfa\xe6\x62\x69\xb1\xb1\xb1\x5e\x5a\x6e\x34\x96\xf3\xef"
      "\xec\xa9\xbf\xea\xfd\x6a\x8d\xc6\xfa\xdc\xa7\xb1\x79\xbf\xdc\xaa\x36\x5b"
      "\xe5\xe6\xd6\xf6\xed\x7a\x63\x73\xad\x75\x3b\xff\x5e\xef\xdb\xd5\xb1\xbe"
      "\x8c\x0a\x00\x38\xce\x07\x1f\x3d\xfe\x53\x12\x11\x3b\xd7\xde\xc9\x4b\x1c"
      "\xd8\xcb\xc1\x5a\x0d\x67\x5b\x3a\xe8\x0e\x00\x03\x33\x32\xe8\x0e\x00\x03"
      "\x63\xb7\x2f\x18\x5e\xfe\x8d\x0f\x74\xd9\xa2\xf7\x25\x3d\x7f\x44\xe8\xd1"
      "\xe9\xf7\x05\xe8\x8f\x0b\x9f\x97\xff\x87\x61\x75\x7c\xfe\xff\x2f\x7d\xeb"
      "\x07\xd0\x7f\xaf\x97\xff\xff\xd6\xa9\xf7\x03\xe8\x3f\xf9\x7f\x18\x5e\xed"
      "\x76\x62\xcf\x7f\x00\x18\x32\x72\xfc\x80\xff\xff\x07\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x80\xff\xdf\x54\x5e\x92\xb4\x54\xec\x05\x3e\x15\x69\x5a\x2a\x45\xbc\x17"
      "\x11\x33\x31\x96\xdc\x5d\xa9\x55\x67\x23\xe2\xfd\x88\xf8\xe3\xf8\xd8\x78"
      "\x56\x9f\x1b\x74\xa7\x01\x80\x37\x94\xfe\x2d\x29\xf6\xff\xba\x30\xfd\xc9"
      "\xd4\xe1\xd6\x73\xc9\x7f\xc6\xf3\x63\x44\xfc\xe4\x17\xb7\x7e\x7e\x7f\xa1"
      "\xd5\xda\x98\xcb\xae\xff\x73\xff\x7a\xeb\x51\x71\xbd\x32\x88\xfe\x03\x00"
      "\xaf\xb2\xb7\x4e\xef\xad\xe3\x7b\x9e\x3f\x7b\xb0\xb8\x57\xfa\xd9\x9f\xa7"
      "\xdf\xee\x6c\x2e\x9a\xc5\xdd\x2d\x4a\xa7\x65\x34\x46\xf3\xe3\x44\x8c\x45"
      "\xc4\xe4\xbf\x92\xa2\xde\x91\x7d\x5e\x19\x39\x85\xf8\x3b\x0f\x23\xe2\x73"
      "\xdd\xc6\x9f\xe4\xb9\x91\x99\x62\xe7\xd3\xc3\xf1\xb3\xd8\xef\xf5\x35\x7e"
      "\xfa\x52\xfc\x34\x6f\xeb\x1c\xb3\xbf\x8b\xcf\x9e\x42\x5f\x60\xd8\x3c\xce"
      "\xe6\x9f\xeb\xdd\x9e\xbf\x34\xce\xe7\xc7\xee\xcf\xff\x44\x3e\x43\xbd\xb9"
      "\xbd\xf9\x6f\xf7\xc8\xfc\x97\xee\xcf\x7f\x23\x3d\xe6\xbf\xf3\x27\x8d\xf1"
      "\xe9\xef\xbf\x77\xe4\x62\x7b\xba\xd3\xf6\x30\xe2\x0b\xa3\xdd\xe2\x27\xfb"
      "\xf1\x93\x1e\xf1\x3f\x39\x61\xfc\x3f\x7f\xf1\xcb\x1f\xf7\x6a\x6b\xff\x32"
      "\xe2\x42\x74\x8d\x9f\x1c\x8c\x55\x6e\xd5\xd7\xcb\xcd\xad\xed\x4b\x2b\xf5"
      "\x85\xe5\xea\x72\x75\xad\x52\x99\x9f\x9b\x9f\xbd\x7a\xf9\x4a\xa5\x9c\xe7"
      "\xa8\xcb\x7b\x99\xea\xa3\xfe\x7e\xed\xe2\xfb\xbd\xe2\x67\xe3\x9f\xec\x1e"
      "\xbf\xb8\xf3\xbd\xc7\xff\xb5\x13\x8e\xff\x57\xff\xbd\xf3\xa3\xaf\x1c\x13"
      "\xff\x1b\x5f\xed\x7e\xff\x3f\x3c\x26\x7e\xb6\x26\x7e\xfd\x84\xf1\x17\x26"
      "\x7f\xd3\x73\xfb\xee\x2c\xfe\x52\x8f\xf1\xef\xdd\xff\xe8\x31\xfe\x8b\x27"
      "\x8c\xff\xe4\xaf\xdb\x4b\x27\x7c\x29\x00\xd0\x07\xcd\xad\xed\xd5\x85\x5a"
      "\xad\xba\xe1\xc4\x89\x13\x27\xfb\x27\x83\x9e\x99\x80\xb7\xed\xc5\x43\x3f"
      "\xe8\x9e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbd\xf4\xe3\xd7"
      "\x89\x06\x3d\x46\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xce\xae\xff\x05\x00\x00\xff\xff"
      "\x3b\xf3\xdb\x60",
      1210);
  syz_mount_image(0x200004c0, 0x20000500, 0x4004, 0x20000080, -1, 0x4ba,
                  0x20000540);
  memcpy((void*)0x200000c0, "msdos\000", 6);
  memcpy((void*)0x20000000, ".\000", 2);
  memcpy(
      (void*)0x20000300,
      "\x00\x23\x78\x97\x28\x31\x6a\xe2\xc3\x56\x75\xdf\x5d\x74\xab\x63\xca\x2d"
      "\xf6\xe4\x90\xfe\xdb\x63\x6a\xf3\xbc\x86\xff\x7e\x0b\xb5\x9e\xbb\x41\xc3"
      "\x2a\xe9\xfc\x3d\x13\xfd\x30\x64\xea\x09\xd0\x1f\x0c\x8d\x3e\x2c\x55\x1f"
      "\xb8\xea\x44\x7d\x7b\xc4\x8a\x16\xe2\xe8\x47\x25\xa8\xbb\x51\x74\x34\xf6"
      "\x1a\xa0\xee\x29\x3a\x5a\x3f\x94\x43\x90\x80\x34\xa6\xa0\xda\x6a\x16\x52"
      "\x27\x01\xeb\xba\x58\x8e\x24\x5e\xae\x85\x35\xbf\xea\x86\x24\xad\xf6\xc9"
      "\x16\x4a\xe6\xca\x8a\x3a\x2a\x2a\x08\x52\xaa\xa2\xb8\x2e\x55\xba\xdb\x8a"
      "\x97\x4d\x5e\x2a\xf8\xad\x7f\x50\xa6\xad\x78\x8e\x33\xa7\x0b\x48\xb9\xeb"
      "\xe0\x71\xc6\x10\x46\x63\x6e\xb3\x69\x9e\xe7\x56\xd8\x4f\x77\x1d\x45\x85"
      "\x47\xe0\x89\x68\x04\x16\x90\xb2\x90\x22\x0b\x58\x91\x0b\xf8\xb2\x3b\xe9"
      "\x17\x7d\x5e\x0e\x7e\xb0\x07\x85\x93",
      189);
  syz_mount_image(0x200000c0, 0x20000000, 0x18085a1, 0x20000300, 1, 0,
                  0x20000000);
  memcpy((void*)0x200000c0, "msdos\000", 6);
  memcpy((void*)0x20000000, ".\000", 2);
  memcpy(
      (void*)0x200001c0,
      "\x00\x80\xee\x76\x51\x7b\xa0\x16\x1f\xb0\xfe\x36\x56\x9b\x03\x8b\xc1\x06"
      "\xee\x85\xc4\x30\xa4\x4c\x94\xbd\x9b\xa8\x4f\xa8\x10\x4e\x71\xde\x5c\xd3"
      "\x49\x87\x34\x03\xd2\x00\x2f\x2d\xbb\x4c\x88\x49\x92\x36\x94\xc3\x5a\x25"
      "\x2a\xfa\xc4\x97\x8a\x1f\x26\x8c\xe7\x50\x0f\xdd\x54\x6b\x02\x64\xb4\x16"
      "\x8b\xb6\xbe\xab\xa8\x1d\xc1\x7f\x86\xe5\xc2\x60\xfc\x19\x0c\xb3\xfc\xd6"
      "\x33\x8a\x8a\xb6\x14\x79\x28\xe7\xb6\xba\x3f\x0b\xce\xca\x45\x6e\x1f\xfb"
      "\x65\xad\x84\x40\xe1\x8f\x63\x4d\xa9\x66\x97\xb0\x76\xa4\x7b\xb6\xa5\x9c"
      "\x82\x58\xf8\xfe\x61\x53\x8e\x86\x8e\x23\x4f\x48\x85\x9a\xf6\xa5\x62\x96"
      "\xec\x2f\xa0\x38\x43\x52\xb2\x09\xbc\x94\x97\xa0\xae\xac\xb4\x85\x6a\x22"
      "\x4a\x5d\x4e\x2f\x5b\x69\x73\x0a\x26\xd3\x04\xcb\x62\x72\xa1\x2f\x8a\x57"
      "\x40\x21\x52\xd6\x5e\x90\xe2\x25\xf2\x3c\x68\x2e\x1c\x57\x2f\xa7\x70\x1c"
      "\x58\xed\x94\x07\xf2\xb0\x23\x13\x38\xfb\xb4\x1f\x1a\xdd\xd9\x4d\xfa\xae"
      "\xa8\xf7\x44\xe6\x83\x6e\x51\xf4\xa5\x85\xbc\xb5\xa3\xb9\xbd\x4a\x7c\xde"
      "\x4a\x24\x38\xff\x4f\x27\x9e\xa9\x00\x74\x9d\x92\xbd\x22\x0a\x46\xe3\x6a"
      "\x11\x83\x12\xfa\x42\xee\xaf\x4a\xd2\x92\x55\x0f\xb9\xbd\x7f\xcc\xf5\x7f"
      "\xdf\x3e\x9f\xe0\x00\x48\x66",
      277);
  syz_mount_image(0x200000c0, 0x20000000, 0x1b88060, 0x200001c0, 1, 0,
                  0x20000000);
  memcpy((void*)0x200001c0, "cgroup.controllers\000", 19);
  res = syscall(__NR_openat, 0xffffff9c, 0x200001c0ul, 0x275aul, 0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_quotactl_fd, r[0], 0xffffffff80000602ul, 0, 0ul);
}
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);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}