// https://syzkaller.appspot.com/bug?id=cb26fbde77843e8c965259ccc1dc538e734569d3
// 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, 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");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  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 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 (;;) {
      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;
    }
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$ext4 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 74 34 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x800718 (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              delalloc: buffer: {64 65 6c 61 6c 6c 6f 63} (length 0x8)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              journal_dev: fs_opt["journal_dev", fmt[hex, int32]] {
  //                name: buffer: {6a 6f 75 72 6e 61 6c 5f 64 65 76} (length
  //                0xb) eq: const = 0x3d (1 bytes) val: int32 = 0x40000ff (18
  //                bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              debug_want_extra_isize: fs_opt["debug_want_extra_isize",
  //              fmt[hex, int32]] {
  //                name: buffer: {64 65 62 75 67 5f 77 61 6e 74 5f 65 78 74 72
  //                61 5f 69 73 69 7a 65} (length 0x16) eq: const = 0x3d (1
  //                bytes) val: int32 = 0x60 (18 bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              nobh: buffer: {6e 6f 62 68} (length 0x4)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              resgid: fs_opt["resgid", fmt[hex, gid]] {
  //                name: buffer: {72 65 73 67 69 64} (length 0x6)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              resuid: fs_opt["resuid", fmt[hex, uid]] {
  //                name: buffer: {72 65 73 75 69 64} (length 0x6)
  //                eq: const = 0x3d (1 bytes)
  //                val: uid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              nombcache: buffer: {6e 6f 6d 62 63 61 63 68 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              noblock_validity: buffer: {6e 6f 62 6c 6f 63 6b 5f 76 61 6c 69
  //              64 69 74 79} (length 0x10)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              resgid: fs_opt["resgid", fmt[hex, gid]] {
  //                name: buffer: {72 65 73 67 69 64} (length 0x6)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              journal_ioprio: fs_opt["journal_ioprio", fmt[hex, int32[0:7]]]
  //              {
  //                name: buffer: {6a 6f 75 72 6e 61 6c 5f 69 6f 70 72 69 6f}
  //                (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0x4 (18
  //                bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x2 (1 bytes)
  //    size: len = 0x4a3 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x4a3)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000180, "ext4\000", 5);
  memcpy((void*)0x200000000140, "./file0\000", 8);
  memcpy((void*)0x200000000280, "delalloc", 8);
  *(uint8_t*)0x200000000288 = 0x2c;
  memcpy((void*)0x200000000289, "journal_dev", 11);
  *(uint8_t*)0x200000000294 = 0x3d;
  sprintf((char*)0x200000000295, "0x%016llx", (long long)0x40000ff);
  *(uint8_t*)0x2000000002a7 = 0x2c;
  memcpy((void*)0x2000000002a8, "debug_want_extra_isize", 22);
  *(uint8_t*)0x2000000002be = 0x3d;
  sprintf((char*)0x2000000002bf, "0x%016llx", (long long)0x60);
  *(uint8_t*)0x2000000002d1 = 0x2c;
  memcpy((void*)0x2000000002d2, "nobh", 4);
  *(uint8_t*)0x2000000002d6 = 0x2c;
  memcpy((void*)0x2000000002d7, "resgid", 6);
  *(uint8_t*)0x2000000002dd = 0x3d;
  sprintf((char*)0x2000000002de, "0x%016llx", (long long)0);
  *(uint8_t*)0x2000000002f0 = 0x2c;
  memcpy((void*)0x2000000002f1, "resuid", 6);
  *(uint8_t*)0x2000000002f7 = 0x3d;
  sprintf((char*)0x2000000002f8, "0x%016llx", (long long)0);
  *(uint8_t*)0x20000000030a = 0x2c;
  memcpy((void*)0x20000000030b, "nombcache", 9);
  *(uint8_t*)0x200000000314 = 0x2c;
  memcpy((void*)0x200000000315, "noblock_validity", 16);
  *(uint8_t*)0x200000000325 = 0x2c;
  memcpy((void*)0x200000000326, "resgid", 6);
  *(uint8_t*)0x20000000032c = 0x3d;
  sprintf((char*)0x20000000032d, "0x%016llx", (long long)0);
  *(uint8_t*)0x20000000033f = 0x2c;
  memcpy((void*)0x200000000340, "journal_ioprio", 14);
  *(uint8_t*)0x20000000034e = 0x3d;
  sprintf((char*)0x20000000034f, "0x%016llx", (long long)4);
  *(uint8_t*)0x200000000361 = 0x2c;
  *(uint8_t*)0x200000000362 = 0;
  memcpy(
      (void*)0x2000000004c0,
      "\x78\x9c\xec\xdb\xcd\x6b\x5c\x55\x1b\x00\xf0\xe7\xde\x7c\xf6\x33\x79\xfb"
      "\xf6\xfd\x68\xad\x1a\x2d\x42\x50\x4c\x9a\xb4\x6a\x17\x6e\x14\x05\x91\x8a"
      "\x82\x2e\xea\x32\x4e\xa6\x25\x74\xda\x48\x13\xc1\x7e\x60\xa3\x88\x2b\x41"
      "\x0a\xba\x16\x97\xa2\x7f\x81\xb8\x11\x41\xd4\x95\xe0\x4a\x70\xe5\x4a\x0a"
      "\x45\xb3\x69\xeb\x2a\x72\x67\xee\x4d\x32\x93\x4c\xda\x24\x93\x4c\xed\xfc"
      "\x7e\x30\x99\x73\xe6\x9e\x99\x7b\x9e\x39\xf7\xdc\x7b\xee\x39\x93\x00\x3a"
      "\xd6\x50\xf6\x27\x89\xd8\x1d\x11\xbf\x46\xc4\x40\x2d\x5b\x5f\x60\xa8\xf6"
      "\x74\x73\xfe\x72\xe9\xd6\xfc\xe5\x52\x12\x0b\x0b\xaf\xfe\x91\x54\xcb\xdd"
      "\x98\xbf\x5c\x2a\x8a\x16\xef\xdb\x95\x67\x86\xd3\x88\xf4\xfd\x24\xdf\x49"
      "\xbd\x99\x0b\x17\xcf\x4c\x54\x2a\xe5\xf3\x79\x7e\x74\xf6\x6c\x5f\x9e\x9c"
      "\x38\x5d\x3e\x5d\x3e\x37\x7e\xfc\xf8\xb1\xa3\x63\x4f\x3d\x39\xfe\x44\x4b"
      "\xe2\xcc\xe2\xba\x71\xf0\x9d\xe9\x43\x07\x5e\x78\xfd\xea\x4b\xa5\x93\x57"
      "\xdf\xf8\xe1\xcb\xac\xbe\xbb\xf3\xed\xcb\xe3\x58\xa7\x5f\x46\x9b\x6c\x18"
      "\xca\x02\xff\x73\xa1\xaa\x71\xdb\x23\x1b\xdc\xd9\xdd\x6a\xcf\xb2\x74\xd2"
      "\xdd\xc6\x8a\xb0\x2e\x5d\x11\x91\x35\x57\x4f\xb5\xff\x0f\x44\x57\x2c\x35"
      "\xde\x40\x3c\xff\x5e\x5b\x2b\x07\x6c\xa9\xec\xda\xd4\xd7\x7c\xf3\xdc\x02"
      "\x70\x0f\x4b\xa2\xdd\x35\x00\xda\xa3\xb8\xd0\xef\x9c\xef\x2a\x65\xf7\xc0"
      "\x2b\xef\x83\x07\xb6\x72\xf8\xd1\x76\xd7\x9f\xa9\xdd\x00\x65\x71\xdf\xcc"
      "\x1f\xb5\x2d\xdd\x91\xe6\x65\x7a\x1a\xee\x6f\x5b\x69\x28\x22\x4e\xce\xfd"
      "\xf5\x69\xf6\x88\xcd\xcd\x43\x00\x00\xdc\x91\x0f\x4b\x9f\x9c\xe8\x8d\x88"
      "\x4b\xb7\xbe\x78\x31\x1b\x7b\x2c\x8d\xf6\xd2\xee\xff\x56\x9f\x7f\xab\xfe"
      "\xdd\x9b\x8f\x04\x07\x23\xe2\x5f\x11\xb1\x2f\x22\xfe\x1d\x11\xfb\x23\xe2"
      "\x3f\x11\x91\x95\xfd\x5f\x44\xfc\x7f\x93\xf5\x59\x39\xfe\x49\xaf\x6d\xf2"
      "\x23\xd7\x94\x8d\xff\x9e\xce\xd7\xb6\xea\xc7\x7f\xc5\xe8\x2f\x06\xbb\xf2"
      "\xdc\x9e\x6a\xfc\x3d\xc9\xa9\xa9\x4a\xf9\x48\xfe\x9d\x0c\x47\x4f\x5f\x96"
      "\x1f\x5b\x63\x1f\xdf\x3c\xf7\xf3\x47\xcd\xb6\x2d\x1f\xff\x65\x8f\x6c\xff"
      "\xc5\x58\x30\xaf\xc7\xb5\xee\x86\x09\xba\xc9\x89\xd9\x89\xea\xa0\xb4\x05"
      "\xae\xbf\x1b\x71\xb0\x3b\x49\x56\xc6\x9f\x2c\xae\x04\x24\x11\x71\x20\x22"
      "\x0e\xae\xef\xa3\xf7\x16\x89\xa9\x47\x3f\x3f\xd4\xac\xd0\xed\xe3\x5f\x43"
      "\x0b\xd6\x99\x16\x3e\xcb\xc2\x9b\xcb\xda\x7f\x2e\x1a\xe2\x2f\x24\xb5\xf5"
      "\xc9\x37\x47\x67\x2e\x5c\x7c\x7c\xea\x6c\xe3\xfa\xe4\x68\x7f\x54\xca\x47"
      "\x46\x8b\xa3\x62\xa5\x1f\x7f\xfa\xe0\x95\x66\xfb\xaf\xc5\xdf\x9f\xe7\x56"
      "\x8f\x7f\xc7\xe6\xc3\x6c\xea\x7a\xb9\xf6\xbc\xac\xfd\x97\x6d\x5d\xec\x03"
      "\x4b\xeb\xb5\x33\xad\xdd\xff\x06\x8f\xff\xb4\x37\x79\xad\xba\xce\xdc\x9b"
      "\xbf\xf6\xf6\xc4\xec\xec\xf9\xb1\x88\xde\xe4\x44\x35\x5f\xf7\xfa\xf8\xd2"
      "\x7b\x8b\x7c\x51\x3e\x3b\xfe\x87\x0f\xaf\xde\xff\xf7\xe5\xef\xc9\xda\xff"
      "\xbe\x88\xc8\x0e\xe2\xfb\x23\xe2\x81\x88\x78\x30\xaf\xfb\x43\x11\xf1\x70"
      "\x44\x1c\x5e\x23\xc6\xef\x9f\xbd\x7d\xfc\x91\x6e\xe0\xf8\x6f\x81\x2c\xfe"
      "\xc9\x55\xcf\x7f\x8b\xc7\xff\x60\x52\xd7\xfe\xeb\x4f\x74\x9d\xf9\xee\xab"
      "\x66\xfb\xbf\xb3\xf6\x3f\x56\x4d\x0d\xe7\xaf\x54\xcf\x7f\x0d\x92\x86\xfc"
      "\x6a\xd5\xe9\x8e\xe8\x6b\xac\xe0\x66\xbf\x3f\x00\x00\x00\xf8\x27\x48\xab"
      "\xbf\x81\x4f\xd2\x91\xc5\x74\x9a\x8e\x8c\xd4\x7e\xc3\xbf\x3f\x76\xa6\x95"
      "\xe9\x99\xd9\xc7\x4e\x4d\xbf\x75\x6e\xb2\xf6\x5b\xf9\xc1\xe8\x49\x8b\x99"
      "\xae\x81\x7c\x3e\xb4\x32\x55\x29\x8f\x25\x73\xf9\x27\xd6\xe6\x47\xc7\xf3"
      "\xb9\xe2\x62\xbe\xf4\x68\x3e\x6f\xfc\x71\xd7\x8e\x6a\x7e\xa4\x34\x5d\x99"
      "\x6c\x73\xec\xd0\xe9\x76\x35\xe9\xff\x99\xdf\xbb\xda\x5d\x3b\x60\x8b\xd5"
      "\x2f\x2f\x15\x0b\xc0\xe3\xbd\x6d\xa9\x0c\xb0\xcd\x1a\xd7\xd1\xd3\xfa\xec"
      "\x95\x97\xc3\xc9\x00\xee\x55\xfe\x5f\x1b\x3a\xd7\x6d\xfa\x7f\xba\x5d\xf5"
      "\x00\xb6\x9f\xeb\x3f\x74\xae\xd5\xfa\xff\x95\x86\xbc\xb5\x00\xb8\x37\xb9"
      "\xfe\x43\xe7\xd2\xff\xa1\x43\xa5\xdf\xae\xfa\xf2\xd7\xdb\x5e\x11\xa0\x1d"
      "\x5c\xff\xa1\x23\x6d\xe6\xff\xfa\xb7\x30\xd1\x7f\x77\x54\xa3\x3d\x89\xed"
      "\x6e\x94\x58\x57\xe1\x28\x12\x69\xdb\xbf\xa8\x56\x25\xfa\xe3\xae\xa8\xc6"
      "\xc6\x13\x97\xf2\xde\xdc\xca\x4f\x6e\xf3\x89\x09\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\xa0\x45\xfe\x0e\x00\x00\xff\xff\xe3\x6b\xda\xec",
      1187);
  syz_mount_image(
      /*fs=*/0x200000000180, /*dir=*/0x200000000140,
      /*flags=MS_I_VERSION|MS_SYNCHRONOUS|MS_NOEXEC|MS_NOATIME|0x300*/ 0x800718,
      /*opts=*/0x200000000280, /*chdir=*/2, /*size=*/0x4a3,
      /*img=*/0x2000000004c0);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}