// https://syzkaller.appspot.com/bug?id=ba84cc80a9491d65416bc7877e1650c87530fe8a
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static 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*)0x20000040, "ext4\000", 5);
  memcpy((void*)0x200007c0, "./file0\000", 8);
  memcpy(
      (void*)0x20000540,
      "\x73\x74\x72\x69\x70\x65\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x36\x2c\x67\x72\x70\x71\x75\x6f\x74\x61\x2c\x69"
      "\x5f\x76\x65\x72\x73\x69\x6f\x6e\x2c\x64\x69\x6f\x72\x65\x61\x64\x5f\x6c"
      "\x6f\x63\x6b\x2c\x6d\x61\x78\x5f\x64\x69\x72\x5f\x73\x69\x7a\x65\x5f\x6b"
      "\x62\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x34"
      "\x30\x31\x2c\x6a\x71\x66\x6d\x74\x3d\x76\x66\x73\x76\x31\x2c\x00\xce\xe8"
      "\x5b\x29\x74\xb2\x1f\xce\xfd\xea\x40\x6a\xd8\xb0\xba\xad\x66\x01\xd8\x09"
      "\xa7\x26\x6a\xaa\xb8\x6d\xf2\xd9\x70\x0e\x3d\xbc\x45\xdd\xec\x4b\xdc\x9a"
      "\xe7\xf4\x11\x4b\xda\x84\x04\x72\xed\x2f\x08\xeb\x82\x59\xde\xbf\xa3\xef"
      "\x69\x84\xed\x28\xab\x66\x76\x72\x8b\x70\x21\x62\x77\xee\x7d\x39\x59\xdf"
      "\xa2\x12\x51\xab\xe5\x73\x84\xf9\x98\xf2\x8a\x99\x20\xf3\xb8\xf6\xd0\xcf"
      "\xfb\x19\x63\x95\x5d\x7f\x3e\xf8\x89\x86\x76\x0f\xe5\xce\x7f\x1f\xad\xf8"
      "\xd8\x42\xa5\xc0\x20\xfe\x2d\x12\x8b\x0f\x36\x57\xb3\x19\xe0\xd3\x2e\x45"
      "\x97\x16\x54\xc6\x12\xeb\xad\x43\x2f\x00\xef\x5e\x56\x8a\x8a\xd1\x38\xa1"
      "\xeb\x2f\x97\x70\xe3\xbe\xf4\x40\xd5\xd5\x6e\x4b\x72\xd9\x61\xe9\x8b\xde"
      "\x83\xd0\x7e\x27\x15\xe5\x6e\x64\x1f\x72\xd5\x5d\x46\x4d\xb5\xa9\xdf\x2b"
      "\x84\x8b\x74\x38\x0d\x36\xd7\x97\xdc\xc4\xe3\x4c\x21\xc2\x66\xc3\xbe\x26"
      "\xca\x1f\x7a\x3d\x1a\x79\xde\x54\xdc\x0c\x95\xbf\xbe\x66\xba\x91\x61\x09"
      "\x8a\x7e\x86\x48\x2a\x58\x93\x53\x3a\xee\x4f\xcf\x9f\xc9\x11\xbd\xa1\x51"
      "\x57\x54\x46\xce\xb5\x5d\x0a\x58\x4e\x14\x32\x60\x43\x17\xa5\xd8\x6b\xd5"
      "\x70\x42\x62\x39\xe1\x6a\xff\xfe\x95\x6c\x62\xca\x7b\x5f\xe1\xdd\xd3\x7c"
      "\xa1\x7a\x59\x9b\x13\x81\x04\xa8\x3f\x62\x1d\x2f\x2a\x8a\x22\xa5\xfa\x5a"
      "\x16\x83\x50\x43\x65\x53\x89\x2e\xdb\x36\x09\x10\x06\xd7\xeb\x48\x98\xc9"
      "\x3d\x74\x0d\x34\xb0\x1c\x2b\xc3\x92\x02\x87\xb1\x67\x1d\x1c\x68\xe8\xde"
      "\x5e\xfd\xe1\xee\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
      448);
  memcpy(
      (void*)0x20000800,
      "\x78\x9c\xec\xdd\xcf\x6b\x1c\x55\x1c\x00\xf0\xef\x6c\x92\x26\xa6\xd5\x44"
      "\x10\xb4\x9e\x02\x82\x06\x4a\x37\xa6\xc6\x56\xc1\x43\xc5\x83\x08\x16\x0a"
      "\x7a\xb6\x5d\x36\xdb\x50\xb3\xc9\x96\xec\xa6\x34\x21\xa0\x45\x04\x2f\x82"
      "\x8a\x07\x41\x2f\x3d\xfb\xa3\xde\xbc\xfa\xe3\xaa\xff\x85\x07\x69\xa9\x9a"
      "\x16\x2b\x1e\x24\x32\x9b\xd9\x76\xdb\xec\xa6\x9b\x36\xc9\xda\xee\xe7\x03"
      "\xaf\x7d\x6f\x66\x36\x6f\xbe\xf3\x66\xe6\xbd\xdd\x19\x66\x02\xe8\x59\x63"
      "\xe9\x3f\xb9\x88\xfd\x11\xf1\x51\x12\x31\x92\x4d\x4f\x22\x62\xa0\x9e\xeb"
      "\x8f\x38\xba\xbe\xdc\xf5\xd5\x95\x62\x9a\x92\x58\x5b\x7b\xe3\x8f\xa4\xbe"
      "\xcc\xb5\xd5\x95\x62\x34\x7d\x26\xb5\x37\x2b\x3c\x11\x11\x3f\xbe\x1f\x71"
      "\x20\xb7\xb1\xde\xea\xd2\xf2\x6c\xa1\x5c\x2e\x2d\x64\xe5\x89\xda\xdc\x99"
      "\x89\xea\xd2\xf2\xc1\xd3\x73\x85\x99\xd2\x4c\x69\xfe\xf0\xe4\xd4\xd4\xa1"
      "\x23\xcf\x1f\x39\xbc\x7d\xb1\xfe\xf5\xcb\xf2\xbe\xcb\x1f\xbf\xfa\xcc\x37"
      "\x47\xff\x79\xef\xf1\x8b\x1f\xfe\x94\xc4\xd1\xd8\x97\xcd\x6b\x8e\x63\xbb"
      "\x8c\xc5\x58\xb6\x4d\x06\xd2\x4d\x78\x8b\x57\xb6\xbb\xb2\x2e\x4b\xba\xbd"
      "\x02\xdc\x95\xf4\xd0\xec\x5b\x3f\xca\x63\x7f\x8c\x44\x5f\x3d\x07\x00\x3c"
      "\xc8\xde\x89\x88\x35\x00\xa0\xc7\x24\xfa\x7f\x00\xe8\x31\x8d\xdf\x01\xae"
      "\xad\xae\x14\x1b\xa9\xbb\xbf\x48\xec\xae\x2b\x2f\x47\xc4\xd0\x7a\xfc\x8d"
      "\xeb\x9b\xeb\x73\xfa\xb3\x6b\x76\x43\xf5\xeb\xa0\xc3\xd7\x92\x5b\xae\x8c"
      "\x24\x11\x31\xba\x0d\xf5\x8f\x45\xc4\x17\xdf\xbd\xf5\x55\x9a\x62\x87\xae"
      "\x43\x02\xb4\xf2\xee\xf9\x88\x38\x39\x3a\xb6\xf1\xfc\x9f\x6c\xb8\x67\x61"
      "\xab\x9e\xed\x60\x99\xb1\xdb\xca\xce\x7f\xb0\x7b\xbe\x4f\xc7\x3f\x2f\xb4"
      "\x1a\xff\xe5\x6e\x8c\x7f\xa2\xc5\xf8\x67\xb0\xc5\xb1\x7b\x37\xee\x7c\xfc"
      "\xe7\x2e\x6d\x43\x35\x6d\xa5\xe3\xbf\x97\x9a\xee\x6d\xbb\xde\x14\x7f\x66"
      "\xb4\x2f\x2b\x3d\x5c\x1f\xf3\x0d\x24\xa7\x4e\x97\x4b\xe9\xb9\xed\x91\x88"
      "\x18\x8f\x81\xc1\xb4\x3c\xb9\x49\x1d\xe3\x57\xff\xbd\xda\x6e\x5e\xf3\xf8"
      "\xef\xcf\x4f\xde\xfe\x32\xad\x3f\xfd\xff\xe6\x12\xb9\x4b\xfd\x83\xb7\x7e"
      "\x66\xba\x50\x2b\xdc\x4b\xcc\xcd\xae\x9c\x8f\x78\xb2\xbf\x55\xfc\xc9\x8d"
      "\xf6\x4f\xda\x8c\x7f\x8f\x77\x58\xc7\x6b\x2f\x7e\xf0\x79\xbb\x79\x69\xfc"
      "\x69\xbc\x8d\xb4\x31\xfe\x9d\xb5\x76\x21\xe2\xe9\x96\xed\x7f\xf3\x8e\xb6"
      "\x64\xd3\xfb\x13\x27\xea\xbb\xc3\x44\x63\xa7\x68\xe1\xdb\x5f\x3f\x1b\x6e"
      "\x57\x7f\x73\xfb\xa7\x29\xad\xbf\xf1\x5d\x60\x37\xa4\xed\x3f\xbc\x79\xfc"
      "\xa3\x49\xf3\xfd\x9a\xd5\xad\xd7\xf1\xf3\x85\x91\x1f\xda\xcd\xbb\x73\xfc"
      "\xad\xf7\xff\x3d\xc9\x9b\xf5\xfc\x9e\x6c\xda\xb9\x42\xad\xb6\x30\x19\xb1"
      "\x27\x79\x7d\xe3\xf4\x43\x37\x3f\xdb\x28\x37\x96\x4f\xe3\x1f\x7f\xaa\xf5"
      "\xf1\xbf\xd9\xfe\x9f\x7e\x27\x3c\xd9\x61\xfc\xfd\x97\x7f\xff\xfa\xee\xe3"
      "\xdf\x59\x69\xfc\xd3\x5b\x6a\xff\x8e\x32\x49\x7f\xd3\x94\x8b\xd7\x67\xfb"
      "\xda\xd5\xdf\x59\xfb\x4f\xd5\x73\xe3\xd9\x94\x4e\xce\x7f\x9d\xae\xe9\xbd"
      "\x6c\x3b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\xe8\x54\x2e\x22\xf6\x45\x92\xcb\xdf\xc8\xe7\x72\xf9\xfc\xfa"
      "\x3b\xbc\x1f\x8b\xe1\x5c\xb9\x52\xad\x1d\x38\x55\x59\x9c\x9f\x8e\xfa\xbb"
      "\xb2\x47\x63\x20\xd7\x78\xd4\xe5\x48\xd3\xf3\x50\x27\xb3\xe7\xe1\x37\xca"
      "\x87\x6e\x2b\x3f\x17\x11\x8f\x46\xc4\xa7\x83\x0f\xd5\xcb\xf9\x62\xa5\x3c"
      "\xdd\xed\xe0\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\xb3"
      "\xb7\xcd\xfb\xff\x53\xbf\x0d\x76\x7b\xed\x00\x80\x1d\x33\xd4\xed\x15\x00"
      "\x00\x76\x9d\xfe\x1f\x00\x7a\x8f\xfe\x1f\x00\x7a\x8f\xfe\x1f\x00\x7a\x8f"
      "\xfe\x1f\x00\x7a\x8f\xfe\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"
      "\x00\x00\x00\x80\x1d\x76\xfc\xd8\xb1\x34\xad\xfd\xbd\xba\x52\x4c\xcb\xd3"
      "\x67\x97\x16\x67\x2b\x67\x0f\x4e\x97\xaa\xb3\xf9\xb9\xc5\x62\xbe\x58\x59"
      "\x38\x93\x9f\xa9\x54\x66\xca\xa5\x7c\xb1\x32\x77\xa7\xbf\x57\xae\x54\xce"
      "\x4c\xc5\xfc\xe2\xb9\x89\x5a\xa9\x5a\x9b\xa8\x2e\x2d\x9f\x98\xab\x2c\xce"
      "\xd7\x4e\x9c\x9e\x2b\xcc\x94\x4e\x94\x06\x76\x25\x2a\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\xd8\x9a\xea\xd2\xf2\x6c\xa1\x5c\x2e\x2d"
      "\xdc\xcf\x99\xa1\xff\xc7\x6a\xc8\xc8\x3c\x38\x99\x6e\x9f\x99\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\xee\x0f\xff\x05\x00\x00\xff\xff\xb8\xae\x28"
      "\xe5",
      1891);
  syz_mount_image(0x20000040, 0x200007c0, 0x10, 0x20000540, 1, 0x763,
                  0x20000800);
  memcpy((void*)0x200000c0, "blkio.bfq.io_service_bytes\000", 27);
  res = syscall(__NR_openat, 0xffffff9c, 0x200000c0ul, 0x275aul, 0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_write, r[0], 0x20000040ul, 0x4cul);
  *(uint16_t*)0x20000080 = 4;
  *(uint16_t*)0x20000082 = 0;
  *(uint64_t*)0x20000088 = 0;
  *(uint64_t*)0x20000090 = 2;
  *(uint32_t*)0x20000098 = 0;
  *(uint32_t*)0x2000009c = 0;
  memset((void*)0x200000a0, 0, 16);
  syscall(__NR_ioctl, r[0], 0x40305828, 0x20000080ul);
}
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);
  loop();
  return 0;
}