// https://syzkaller.appspot.com/bug?id=0a52da0bbfd5ff2cd097edb1607fd2bda63a1c4d
// 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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

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

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

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

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

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

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

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

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, max_destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x2000000000c0, "ext4\000", 5);
  memcpy((void*)0x200000000640, "./file1\000", 8);
  *(uint8_t*)0x200000000000 = 0;
  memcpy(
      (void*)0x200000000100,
      "\x78\x9c\xec\xdd\xcf\x6f\x23\x57\x1d\x00\xf0\xef\x4c\xe2\xdd\xec\x6e\x8a"
      "\x53\x40\xa8\x54\xa2\x54\xb4\x68\xb7\x82\xb5\x37\x0d\x6d\x23\x84\xa0\x5c"
      "\xe0\x54\x09\x28\xf7\x25\x24\x4e\x14\xc5\x8e\xa3\xd8\x29\x9b\xa8\xa2\xa9"
      "\xf8\x0f\x10\x12\x48\x9c\x38\x71\x41\xe2\x0f\x40\x42\x3d\xf0\x07\xa0\x4a"
      "\x95\xe0\x82\x38\x20\x40\x20\x04\x5b\x38\x20\x01\x1d\x34\xe3\xb1\x9a\x75"
      "\xec\x24\xd0\xac\x9d\xc6\x9f\x8f\xf4\xe2\xf7\xe6\xd7\xf7\xbd\xb1\xfc\x3c"
      "\x33\x7e\x99\x09\x60\x6a\x3d\x19\x11\x2f\x46\xc4\x4c\x44\x3c\x13\x11\xd5"
      "\x72\x7a\x5a\xa6\xbb\x79\xe1\xb0\xb7\xdc\xdb\xf7\x5f\x5d\xcd\x53\x12\x59"
      "\xf6\xf2\x5f\x93\x48\xca\x69\xfd\x6d\xe5\xe5\xd9\x88\xb8\xd1\x5b\x25\xe6"
      "\x22\xe2\x6b\x5f\x8e\xf8\x66\x72\x3c\x6e\x67\xff\x60\x6b\xa5\xd9\x6c\xec"
      "\x96\xe5\x7a\xb7\xb5\x53\xef\xec\x1f\xdc\xde\x6c\xad\x6c\x34\x36\x1a\xdb"
      "\x4b\x4b\x8b\xcf\x2f\xbf\xb0\xfc\xdc\xf2\x9d\xac\xf4\x9e\xda\xb9\xd0\xcf"
      "\xfc\xf8\x4b\x9f\xff\xf9\xa7\xbf\xf5\xbb\xbb\x7f\xbe\xf5\xed\xbc\x5a\x9f"
      "\xfb\x48\x54\x62\xa0\x1d\xe7\xa9\xd7\xf4\x4a\xb1\x2f\xfa\xf2\x7d\xb4\xfb"
      "\x30\x82\x4d\xc0\x4c\xd9\x9e\xca\xa4\x2b\x02\x00\xc0\x99\xe4\xc7\xf8\x1f"
      "\x8c\x88\x4f\x14\xc7\xff\xd5\x98\x29\x8e\xe6\x06\xcc\x4c\xa2\x66\x00\x00"
      "\x00\xc0\x79\xc9\xbe\x30\x1f\xff\x4e\x22\x32\x00\x00\x00\xe0\xd2\x4a\x23"
      "\x62\x3e\x92\xb4\x56\x8e\x05\x98\x8f\x34\xbd\x52\x5e\x1b\xf8\x70\x5c\x4f"
      "\x9b\xed\x4e\xf7\x53\xeb\xed\xbd\xed\xb5\x7c\x5e\xc4\x42\x54\xd2\xf5\xcd"
      "\x66\xe3\x4e\x39\x56\x78\x21\x2a\x49\x5e\x5e\x2c\xc7\xd8\xf6\xcb\xcf\x0e"
      "\x94\x97\x22\xe2\xd1\x88\xf8\x5e\xf5\x5a\x51\xae\xad\xb6\x9b\x6b\x13\xbe"
      "\xf6\x01\x00\x00\x00\xd3\xe2\xc6\xc0\xf9\xff\x3f\xaa\x69\x91\x3f\xdd\x90"
      "\xff\x13\x00\x00\x00\x00\x2e\xae\x85\x91\x05\x00\x00\x00\xe0\xb2\x70\xca"
      "\x0f\x00\x00\x00\x97\xdf\xe0\xf9\xbf\xfb\xfd\x03\x00\x00\xc0\xa5\xf2\x95"
      "\x97\x5e\xca\x53\xd6\x7f\xfe\xf5\xda\x2b\xfb\x7b\x5b\xed\x57\x6e\xaf\x35"
      "\x3a\x5b\xb5\xd6\xde\x6a\x6d\xb5\xbd\xbb\x53\xdb\x68\xb7\x37\x8a\x7b\xf6"
      "\xb5\x4e\xdb\x5e\xb3\xdd\xde\xf9\x4c\x6c\xef\xdd\xab\x77\x1b\x9d\x6e\xbd"
      "\xb3\x7f\x70\xb7\xd5\xde\xdb\xee\xde\xdd\x7c\xe0\x11\xd8\x00\x00\x00\xc0"
      "\x18\x3d\xfa\xf1\x37\x7e\x9d\x44\xc4\xe1\x67\xaf\x15\x29\xca\xfb\x00\x02"
      "\x3c\xe0\x0f\x93\xae\x00\x70\x9e\x0c\xf5\x83\xe9\xe5\x2e\xde\x30\xbd\x2a"
      "\x93\xae\x00\x30\x71\xc9\x29\xf3\x0d\xde\x01\x00\x80\xf7\xbf\x9b\x1f\x3d"
      "\xfe\xfb\x7f\xff\xf9\xff\xae\x0d\xc0\xe5\x66\xac\x0f\x00\x4c\x1f\xbf\xff"
      "\xc3\xf4\xaa\x18\x01\x08\x53\x6b\xb6\xbc\x06\xf0\x81\x5e\xf1\xea\xa8\xe5"
      "\x46\xfe\xfe\xff\xcb\xb3\x46\xca\xb2\x88\x37\xab\x47\xa7\xb8\xbe\x08\x00"
      "\x00\xe3\x35\x5f\xa4\x24\xad\x95\xe7\x01\xf3\x91\xa6\xb5\x5a\xc4\x23\x11"
      "\xe9\x42\x54\x92\xf5\xcd\x66\xe3\x4e\x79\x7e\xf0\xab\x6a\xe5\x6a\x5e\x5e"
      "\x2c\xd6\x4c\x4e\x1d\x33\x0c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\xf4\x64\x59\x12\x19\x00\x00\x00\x70\xa9"
      "\x45\xa4\x7f\x4a\x8a\xbb\xf9\x47\xdc\xac\x3e\x3d\x3f\x78\x7d\xe0\x4a\xf2"
      "\xcf\x6a\xfc\xb1\x2c\xfc\xf0\xe5\xef\xdf\x5b\xe9\x76\x77\x17\xf3\xe9\x7f"
      "\x2b\x9e\xe5\x75\x25\x22\xba\x3f\x28\xa7\x3f\x3b\xf2\xf1\x61\x00\x00\x00"
      "\xc0\x79\x4b\x0e\x47\xce\xea\x9d\xa7\x97\xaf\x8b\x63\xad\x15\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x53\xe0"
      "\xed\xfb\xaf\xae\xf6\xd3\x38\xe3\xfe\xe5\x8b\x11\xb1\x30\x2c\xfe\x6c\xcc"
      "\x15\xaf\x73\x51\x89\x88\xeb\x7f\x4f\x62\xf6\xc8\x7a\x49\x44\xcc\x9c\x43"
      "\xfc\xc3\xd7\x23\xe2\xb1\x61\xf1\x93\x78\x27\xcb\x5e\x8b\xb2\x16\xc3\xe2"
      "\x5f\x7b\xc8\xf1\x17\x8a\x5d\x33\x3c\x7e\x1a\x11\x37\xce\x21\x3e\x4c\xb3"
      "\x37\xf2\xfe\xe7\xc5\x61\x9f\xbf\x34\x9e\x2c\x5e\x87\x7f\xfe\x66\xcb\xf4"
      "\x5e\x8d\xee\xff\xd2\x32\xf2\x63\x45\x3f\x37\xac\xff\x79\xe4\xd8\xd6\x5a"
      "\x43\x63\x3c\xfe\xd6\x4f\xeb\xbd\x5c\xe5\x78\xfc\xd7\x23\x1e\x9f\x1d\xde"
      "\xff\xf4\xfb\xdf\x64\x44\xfc\xa7\x8e\x6d\xed\x5f\x59\x96\x1d\x8f\xff\x8d"
      "\xaf\x1f\x1c\x8c\x6a\x7f\xf6\xa3\x88\x9b\x43\xbf\x7f\x92\x07\x62\xd5\xbb"
      "\xad\x9d\x7a\x67\xff\xe0\xf6\x66\x6b\x65\xa3\xb1\xd1\xd8\x5e\x5a\x5a\x7c"
      "\x7e\xf9\x85\xe5\xe7\x96\xef\xd4\xd7\x37\x9b\x8d\xf2\xef\xd0\x18\xdf\xfd"
      "\xd8\xcf\xde\x19\x15\x3f\x6f\xff\xf5\x21\xf1\x7f\xfb\x9b\x5e\xff\x7b\x52"
      "\xfb\x9f\x1e\xb5\xd1\x01\xff\x79\xeb\xde\xfd\x0f\xf5\xb2\xc7\xde\x80\x3c"
      "\xfe\xad\xa7\x86\x7e\xff\xce\xc5\x88\xf8\x69\xf9\xdd\xf7\xc9\x32\x9f\xcf"
      "\xbf\xd9\xcf\x1f\xf6\xf2\x47\x3d\xf1\x93\x37\x9f\x38\xa9\xfd\x6b\x23\xf6"
      "\xff\x69\xef\xff\xad\x33\xb6\xff\x99\xaf\x7e\xe7\xf7\x67\x5c\x14\x00\x18"
      "\x83\xce\xfe\xc1\xd6\x4a\xb3\xd9\xd8\x3d\x21\x33\x77\x86\x65\xde\x8f\x99"
      "\x5f\xcc\x5d\x88\x6a\xfc\x8f\x99\xec\xb5\xde\x3b\x77\x51\xea\xf3\xff\x66"
      "\xf2\xa3\xd5\x77\xa7\xf4\x5b\x75\x01\x2a\x76\x24\x93\x8d\x25\xd6\xd5\xe2"
      "\x78\xfe\xac\x6b\x5d\x19\x53\xdb\x27\xda\x2d\x01\x00\x00\x0f\xc1\xbb\x07"
      "\xfd\x93\xae\x09\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x4c\xaf\x71\xdc\x4a\x6d\x30\xe6\xe1\x64\x9a\x0a\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x70"
      "\xa2\xff\x06\x00\x00\xff\xff\x74\x13\xdc\x6c",
      1307);
  syz_mount_image(/*fs=*/0x2000000000c0, /*dir=*/0x200000000640,
                  /*flags=MS_LAZYTIME|MS_SYNCHRONOUS|MS_STRICTATIME*/ 0x3000010,
                  /*opts=*/0x200000000000, /*chdir=*/0x3e, /*size=*/0x51b,
                  /*img=*/0x200000000100);
  memcpy((void*)0x200000000000, "ext4\000", 5);
  memcpy((void*)0x2000000001c0, "./bus\000", 6);
  memcpy((void*)0x2000000008c0, "bsdgroups", 9);
  *(uint8_t*)0x2000000008c9 = 0x2c;
  memcpy((void*)0x2000000008ca, "nodiscard", 9);
  *(uint8_t*)0x2000000008d3 = 0x2c;
  memcpy((void*)0x2000000008d4, "noblock_validity", 16);
  *(uint8_t*)0x2000000008e4 = 0x2c;
  memcpy((void*)0x2000000008e5, "grpjquota=", 10);
  *(uint8_t*)0x2000000008ef = 0x2c;
  memcpy((void*)0x2000000008f0, "grpjquota=", 10);
  *(uint8_t*)0x2000000008fa = 0x2c;
  memcpy((void*)0x2000000008fb, "orlov", 5);
  *(uint8_t*)0x200000000900 = 0x2c;
  memcpy((void*)0x200000000901, "abort", 5);
  *(uint8_t*)0x200000000906 = 0x2c;
  memcpy((void*)0x200000000907, "nombcache", 9);
  *(uint8_t*)0x200000000910 = 0x2c;
  memcpy((void*)0x200000000911, "stripe", 6);
  *(uint8_t*)0x200000000917 = 0x3d;
  sprintf((char*)0x200000000918, "0x%016llx", (long long)0x10);
  *(uint8_t*)0x20000000092a = 0x2c;
  *(uint8_t*)0x20000000092b = 0;
  memcpy(
      (void*)0x200000000200,
      "\x78\x9c\xec\xdd\x51\x6b\x1c\x5b\x1d\x00\xf0\xff\x6c\x76\x6b\xd3\xa6\x37"
      "\xb9\xea\x83\x5e\xf0\x7a\xb5\x95\xb4\x68\x77\x93\xc6\xb6\xc1\x87\x5a\x41"
      "\xf4\xa9\xa0\xd6\xf7\x1a\x93\x4d\x08\xd9\x64\x43\x76\xd3\x36\xa1\x68\x8a"
      "\x1f\x40\x10\x51\xc1\x27\x7d\xf1\x45\xf0\x03\x08\x52\xf0\xc5\x47\x11\x0a"
      "\xfa\xac\xa8\x28\xa2\xad\x3e\xf8\xa0\x9d\xcb\xee\x4e\xd2\x34\xdd\x4d\xb6"
      "\xed\x36\x9b\x66\x7f\x3f\x98\xcc\x39\x67\x66\xf6\x7f\xce\x86\x99\x9d\x33"
      "\x73\x98\x09\x60\x60\xbd\x17\x11\xd7\x23\xe2\x49\x9a\xa6\x17\x22\x62\x34"
      "\x2b\xcf\x65\x53\x6c\xb5\xa6\xc6\x7a\x8f\x1f\xdd\x9b\x6d\x4c\x49\xa4\xe9"
      "\xcd\x7f\x26\x91\x64\x65\xdb\x9f\x95\x64\xf3\xd3\xd9\x66\x27\x23\xe2\x6b"
      "\x5f\x8e\xf8\x66\xf2\x7c\xdc\xda\xc6\xe6\xd2\x4c\xa5\x52\x5e\xcb\xf2\xa5"
      "\xfa\xf2\x6a\xa9\xb6\xb1\x79\x71\x71\x79\x66\xa1\xbc\x50\x5e\x99\x9a\x9a"
      "\xbc\x32\x7d\x75\xfa\xf2\xf4\x44\x4f\xda\x79\x26\x22\xae\x7d\xf1\xaf\x3f"
      "\xf8\xee\xcf\xbe\x74\xed\x57\x9f\xb9\xf3\xa7\x5b\x7f\x3f\xff\xad\x46\xb5"
      "\x46\xb2\xe5\xbb\xdb\xf1\x82\xf2\xfb\x2d\x6c\x35\xbd\xd0\xfc\x2e\x76\x6f"
      "\xb0\xf6\x92\xc1\x8e\xa2\x7c\xb3\x85\x99\xe1\x76\x6b\x0c\x3d\x57\x72\xff"
      "\x35\xd7\x09\x00\x80\xf6\x1a\xe7\xf8\x1f\x8c\x88\x4f\x46\xc4\x85\x18\x8d"
      "\xa1\xfd\x4f\x67\x01\x00\x00\x80\x37\x50\xfa\xf9\x91\xf8\x5f\x12\x91\xb6"
      "\x77\xa2\x43\x39\x00\x00\x00\xf0\x06\xc9\x35\xc7\xc0\x26\xb9\x62\x36\x16"
      "\x60\x24\x72\xb9\x62\xb1\x35\x86\xf7\xc3\x71\x2a\x57\xa9\xd6\xea\x9f\x9e"
      "\xaf\xae\xaf\xcc\xb5\xc6\xca\x8e\x45\x21\x37\xbf\x58\x29\x4f\x64\x63\x85"
      "\xc7\xa2\x90\x34\xf2\x93\xcd\xf4\xd3\xfc\xa5\x3d\xf9\xa9\x88\x78\x3b\x22"
      "\xbe\x3f\x3a\xdc\xcc\x17\x67\xab\x95\xb9\x7e\x5f\xfc\x00\x00\x00\x80\x01"
      "\x71\x7a\x4f\xff\xff\x3f\xa3\xad\xfe\x3f\x00\x00\x00\x70\xcc\x8c\xf5\xbb"
      "\x02\x00\x00\x00\xc0\x6b\xa7\xff\x0f\x00\x00\x00\xc7\x9f\xfe\x3f\x00\x00"
      "\x00\x1c\x6b\x5f\xb9\x71\xa3\x31\xa5\xdb\xef\xbf\x9e\xbb\xbd\xb1\xbe\x54"
      "\xbd\x7d\x71\xae\x5c\x5b\x2a\x2e\xaf\xcf\x16\x67\xab\x6b\xab\xc5\x85\x6a"
      "\x75\xa1\xf9\xcc\xbe\xe5\x83\x3e\xaf\x52\xad\xae\x7e\x36\x56\xd6\xef\x96"
      "\xea\xe5\x5a\xbd\x54\xdb\xd8\xbc\xb5\x5c\x5d\x5f\xa9\xdf\x5a\x7c\xe6\x15"
      "\xd8\x00\x00\x00\xc0\x21\x7a\xfb\xe3\x0f\xfe\x90\x44\xc4\xd6\xe7\x86\x9b"
      "\x53\xc3\x89\xee\x36\xed\x72\x35\xe0\xa8\xca\xef\xa4\x92\x6c\xde\x66\xb7"
      "\xfe\xe3\x5b\xad\xf9\x5f\x0e\xa9\x52\xc0\xa1\x18\xea\x77\x05\x80\xbe\xc9"
      "\xf7\xbb\x02\x40\xdf\x14\xfa\x5d\x01\xa0\xef\x92\x03\x96\x77\x1c\xbc\xf3"
      "\xdb\x6c\xfe\x89\xde\xd6\x07\x00\x00\xe8\xbd\xf1\x8f\x76\xbe\xff\x9f\xdb"
      "\x77\xcb\xad\xfd\x17\x03\x47\x9e\x9d\x18\x06\x97\xfb\xff\x30\xb8\x9a\xf7"
      "\xff\xbb\x1d\xc9\xeb\x64\x01\x8e\x95\x82\x33\x00\x18\x78\xaf\x7c\xff\xff"
      "\x40\x69\xfa\x42\x15\x02\x00\x00\x7a\x6e\xa4\x39\x25\xb9\x62\x76\x79\x6f"
      "\x24\x72\xb9\x62\x31\xe2\x4c\xf3\xb5\x00\x85\x64\x7e\xb1\x52\x9e\x88\x88"
      "\xb7\x22\xe2\xf7\xa3\x85\x0f\x34\xf2\x93\xcd\x2d\x93\x03\xfb\x0c\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40"
      "\x4b\x9a\x26\x91\x02\x00\x00\x00\xc7\x5a\x44\xee\x6f\xc9\xaf\x5b\xcf\xf2"
      "\x1f\x1f\x3d\x37\xb2\xf7\xfa\xc0\x89\xe4\xbf\xa3\x91\xbd\x22\xf4\xce\x8f"
      "\x6f\xfe\xf0\xee\x4c\xbd\xbe\x36\xd9\x28\xff\xd7\x4e\x79\xfd\x47\x59\xf9"
      "\xa5\x7e\x5c\xc1\x00\x00\x00\x80\x81\xf0\x42\x2f\xf0\xdf\xee\xa7\x6f\xf7"
      "\xe3\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\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\x97\x1e\x3f\xba\x37\xbb\x3d\x1d\x66\xdc\x7f\x7c\x21\x22\xc6"
      "\xda\xc5\xcf\xc7\xc9\xe6\xfc\x64\x14\x22\xe2\xd4\xbf\x93\xc8\xef\xda\x2e"
      "\x89\x88\xa1\x1e\xc4\x1f\x6e\xfc\xf9\x48\xbb\xf8\x49\xa3\x5a\x3b\x21\xdb"
      "\xc5\x1f\xee\x41\xfc\xad\xfb\xfb\xc6\x8f\xb1\xec\x5b\x68\x17\xff\x74\x0f"
      "\xe2\xc3\x20\x7b\xd0\x38\xfe\x5c\x6f\xb7\xff\xe5\xe2\xbd\xe6\xbc\xfd\xfe"
      "\x97\x8f\x78\x26\xff\xb2\x3a\x1f\xff\x62\xe7\xf8\x37\xd4\x61\xff\x3f\xd3"
      "\x65\x8c\x77\x1e\xfe\xa2\xd4\x31\xfe\xfd\x88\x77\xf2\xed\x8f\x3f\xdb\xf1"
      "\x93\x0e\xf1\xcf\x76\x19\xff\x1b\x5f\xdf\xdc\xec\xb4\x2c\xfd\x49\xc4\x78"
      "\xdb\xdf\x9f\xe4\x99\x58\xa5\xfa\xf2\x6a\xa9\xb6\xb1\x79\x71\x71\x79\x66"
      "\xa1\xbc\x50\x5e\x99\x9a\x9a\xbc\x32\x7d\x75\xfa\xf2\xf4\x44\x69\x7e\xb1"
      "\x52\xce\xfe\xb6\x8d\xf1\xbd\x8f\xfd\xf2\xc9\x7e\xed\x3f\xd5\x21\xfe\xd8"
      "\x01\xed\x3f\xd7\x65\xfb\xff\xff\xf0\xee\xa3\x0f\xb5\x92\x85\x76\xf1\xcf"
      "\x9f\x6d\x13\xff\x37\x3f\xcd\xd6\x78\x3e\x7e\x2e\xfb\xed\xfb\x54\x96\x6e"
      "\x2c\x1f\xdf\x4e\x6f\xb5\xd2\xbb\xbd\xfb\xf3\xdf\xbd\xbb\x5f\xfb\xe7\x3a"
      "\xb4\xff\xa0\xff\xff\xf9\x2e\xdb\x7f\xe1\xab\xdf\xf9\x73\x97\xab\x02\x00"
      "\x87\xa0\xb6\xb1\xb9\x34\x53\xa9\x94\xd7\x8e\x6d\xa2\xd1\x4b\x3f\x02\xd5"
      "\x90\x38\x82\x89\x6f\xf7\xf4\x03\xd3\x34\x4d\x1b\xfb\xd4\x2b\x7c\x4e\x12"
      "\x47\xe1\x6b\x69\x26\xfa\x7d\x64\x02\x00\x00\x7a\xed\xe9\x49\x7f\xbf\x6b"
      "\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x83\xeb"
      "\x30\x1e\x27\xb6\x37\xe6\xd6\x4e\x2a\xe9\xc5\x23\xb4\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x7a\xe2\xfd\x00\x00\x00\xff\xff\x86\x01\xd9\x55",
      1290);
  syz_mount_image(/*fs=*/0x200000000000, /*dir=*/0x2000000001c0,
                  /*flags=MS_RDONLY|MS_MANDLOCK*/ 0x41, /*opts=*/0x2000000008c0,
                  /*chdir=*/0x64, /*size=*/0x50a, /*img=*/0x200000000200);
}
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;
  use_temporary_dir();
  loop();
  return 0;
}