// https://syzkaller.appspot.com/bug?id=b80a90fa6b9997f3355ff9a6143e891ae9e82399
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

//% 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;
}

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  install_segv_handler();
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  NONFAILING(memcpy((void*)0x200008c0, "ext4\000", 5));
  NONFAILING(
      memcpy((void*)0x20000300,
             "./"
             "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
             255));
  NONFAILING(memcpy((void*)0x20000280, "test_dummy_encryption", 21));
  NONFAILING(*(uint8_t*)0x20000295 = 0x2c);
  NONFAILING(memcpy((void*)0x20000296, "journal_ioprio", 14));
  NONFAILING(*(uint8_t*)0x200002a4 = 0x3d);
  NONFAILING(sprintf((char*)0x200002a5, "0x%016llx", (long long)1));
  NONFAILING(*(uint8_t*)0x200002b7 = 0x2c);
  NONFAILING(memcpy((void*)0x200002b8, "stripe", 6));
  NONFAILING(*(uint8_t*)0x200002be = 0x3d);
  NONFAILING(sprintf((char*)0x200002bf, "0x%016llx", (long long)0));
  NONFAILING(*(uint8_t*)0x200002d1 = 0x2c);
  NONFAILING(*(uint8_t*)0x200002d2 = 0);
  NONFAILING(memcpy(
      (void*)0x20000f00,
      "\x78\x9c\xec\xdb\xcd\x6f\x14\xe5\x1f\x00\xf0\xef\x4c\x5f\x80\x1f\xf0\xeb"
      "\x8a\xf8\xc2\x8b\x5a\x45\x63\xe3\x4b\x4b\x01\x95\x83\x07\x35\x9a\x78\xc0"
      "\xc4\x44\x0f\x7a\x6c\xda\x42\x90\x85\x1a\x5a\x13\x20\x44\xc1\x18\x3c\x19"
      "\x63\xe2\xdd\x78\xf4\x5f\xf0\xa4\x17\x63\x3c\x99\x78\xd5\xbb\x21\x21\x86"
      "\x0b\xe0\x69\xcd\xec\xcc\xd0\xdd\x65\x77\x69\xcb\x2e\x8b\xee\xe7\x93\x4c"
      "\xfb\x3c\x33\xcf\xcc\xf3\x7c\x77\xe6\xd9\x7d\x66\x9e\xdd\x00\x86\xd6\x64"
      "\xf6\x27\x89\xd8\x16\x11\xbf\x47\xc4\x44\x9e\x6d\x2e\x30\x99\xff\xbb\x7e"
      "\xf5\xfc\xfc\x8d\xab\xe7\xe7\x93\xa8\xd5\xde\xf9\x2b\xa9\x97\xbb\x76\xf5"
      "\xfc\x7c\x59\xb4\xdc\x6f\x6b\x91\x99\x4a\x23\xd2\xcf\x92\xd8\xd3\xa6\xde"
      "\xe5\xb3\xe7\x4e\xcc\x55\xab\x8b\xa7\x8b\xfc\xcc\xca\xc9\x0f\x67\x96\xcf"
      "\x9e\x7b\xfe\xf8\xc9\xb9\x63\x8b\xc7\x16\x4f\x1d\x38\x7c\xf8\xd0\xc1\xd9"
      "\x97\x5e\x3c\xf0\x42\x4f\xe2\xcc\xda\x74\x6d\xf7\xc7\x4b\x7b\x77\xbd\xf9"
      "\xfe\x57\x6f\x1d\xf9\x22\x5b\x37\x5e\xc6\xdf\x12\x47\x8f\x4c\x76\xdb\xf8"
      "\x54\xad\xd6\xe3\xea\x06\x6b\x7b\x43\x3a\x19\x1d\x60\x43\x58\x97\x91\x88"
      "\xc8\x4e\xd7\x58\xbd\xff\x4f\xc4\x48\xac\x9e\xbc\x89\x78\xe3\xd3\x81\x36"
      "\x0e\xe8\xab\x5a\xad\x56\xdb\xda\x79\xf3\x85\x1a\xf0\x1f\x96\x44\x73\x5e"
      "\x97\x87\x61\x51\x7e\xd0\x67\xf7\xbf\xe5\xd2\x3a\x08\x78\xa5\x7f\xc3\x8f"
      "\x81\xbb\xf2\x6a\x7e\x03\x94\xc5\x7d\xbd\x58\xf2\x2d\xa3\x91\x16\x65\xc6"
      "\x5a\xee\x6f\x7b\x69\x32\x22\xde\xbb\xf0\xf7\x37\xd9\x12\xfd\x79\x0e\x01"
      "\x00\xd0\xe4\x87\x6c\xfc\xf3\x5c\xbb\xf1\x5f\x1a\x0f\x36\x94\xfb\x7f\x31"
      "\x37\x54\x89\x88\xfb\x22\x62\x47\x44\xdc\x1f\x11\x3b\x23\xe2\x81\x88\x7a"
      "\xd9\x87\x22\xe2\xe1\x75\xd6\xdf\x3a\x49\x72\xeb\xf8\x27\xbd\xbc\xa1\xc0"
      "\xd6\x28\x1b\xff\xbd\x5c\xcc\x6d\x35\x8f\xff\xca\xd1\x5f\x54\x46\x8a\xdc"
      "\xf6\x7a\xfc\x63\xc9\xd1\xe3\xd5\xc5\xfd\xc5\x6b\x32\x15\x63\x9b\xb2\xfc"
      "\x6c\x97\x3a\x7e\x7c\xfd\xb7\x2f\x3b\x6d\x6b\x1c\xff\x65\x4b\x56\x7f\x39"
      "\x16\x2c\xda\x71\x79\x74\x53\xf3\x3e\x0b\x73\x2b\x73\x77\x12\x73\xa3\x2b"
      "\x17\x23\x76\x8f\xb6\x8b\x3f\xb9\x39\x13\x90\x44\xc4\xae\x88\xd8\xbd\xc1"
      "\x3a\x8e\x3f\xf3\xdd\xde\x4e\xdb\x6e\x1f\x7f\x17\x3d\x98\x67\xaa\x7d\x1b"
      "\xf1\x74\x7e\xfe\x2f\x44\x4b\xfc\xa5\xa4\xfb\xfc\xe4\xcc\xe6\xa8\x2e\xee"
      "\x9f\x29\xaf\x8a\x5b\xfd\xf2\xeb\xa5\xb7\x3b\xd5\x7f\x47\xf1\xf7\x40\x76"
      "\xfe\xff\xd7\xf6\xfa\xbf\x19\x7f\x25\x69\x9c\xaf\x5d\x5e\x7f\x1d\x97\xfe"
      "\xf8\xbc\xe3\x3d\xcd\x1a\xaf\xff\x4a\xe3\x3e\xd9\xf5\x3f\x9e\xbc\x5b\x4f"
      "\x8f\x17\xeb\xce\xcc\xad\xac\x9c\x9e\x8d\x18\x4f\x8e\xe4\x8d\x6e\x5c\x7f"
      "\x60\x75\xdf\x32\x5f\x96\xcf\xe2\x9f\xda\xd7\xbe\xff\xef\x88\xd5\x57\x62"
      "\x4f\x44\x64\x17\xf1\x23\x11\xf1\x68\x44\x3c\x56\xb4\xfd\xf1\x88\x78\x22"
      "\x22\xf6\x75\x89\xff\xe7\xd7\x9e\xfc\x60\xe3\xf1\xf7\x57\x16\xff\xc2\xba"
      "\xce\xff\x6a\x62\x3c\x5a\xd7\xb4\x4f\x8c\x9c\xf8\xe9\xfb\xa6\x4a\x2b\xb7"
      "\xc4\x7f\xa3\xfb\xf9\x3f\x54\x4f\x4d\x15\x6b\xd6\xf2\xfe\xb7\x96\x76\x6d"
      "\xec\x6a\x06\x00\x00\x80\x7f\x9f\x34\x22\xb6\x45\x92\x4e\xdf\x4c\xa7\xe9"
      "\xf4\x74\xfe\x7d\xf9\x9d\x11\x69\x75\x69\x79\xe5\xd9\xa3\x4b\x1f\x9d\x5a"
      "\xc8\x7f\x23\x50\x89\xb1\xb4\x7c\xd2\x35\xd1\xf0\x3c\x74\xb6\xb8\xad\xcf"
      "\xf3\x17\x23\x22\xff\x6a\x41\xb9\xfd\x60\xf1\xdc\xf8\xeb\x91\x2d\xf5\xfc"
      "\xf4\xfc\x52\x75\x61\xd0\xc1\xc3\x90\xdb\xda\xa1\xff\x67\xfe\x1c\x19\x74"
      "\xeb\x80\xbe\xf3\x7b\x2d\x18\x5e\xfa\x3f\x0c\x2f\xfd\x1f\x86\x97\xfe\x0f"
      "\xc3\xab\x4d\xff\xdf\x32\x88\x76\x00\x77\x5f\xbb\xcf\xff\x4f\x06\xd0\x0e"
      "\xe0\xee\x6b\xe9\xff\xa6\xfd\x60\x88\xb8\xff\x87\xe1\xa5\xff\xc3\xf0\xd2"
      "\xff\x61\x28\x2d\x6f\x89\xdb\xff\x48\xbe\x6b\xa2\x3c\xd2\x06\x77\xef\x96"
      "\x18\x3d\x93\x1f\xba\xf7\x47\xbe\x0b\x89\x18\xbb\x27\x9a\x91\x27\x36\xf7"
      "\xfe\xc8\x91\xde\x03\x71\x49\xf4\x2d\x31\xc0\x37\x25\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\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\x1e\xfa\x27\x00\x00\xff\xff\x84\x2e\xdd"
      "\x7d",
      1116));
  NONFAILING(syz_mount_image(/*fs=*/0x200008c0, /*dir=*/0x20000300,
                             /*flags=MS_I_VERSION|MS_DIRSYNC*/ 0x800080,
                             /*opts=*/0x20000280, /*chdir=*/3, /*size=*/0x45c,
                             /*img=*/0x20000f00));
  NONFAILING(
      memcpy((void*)0x20000480,
             "./"
             "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
             251));
  NONFAILING(
      syz_mount_image(/*fs=*/0, /*dir=*/0x20000480,
                      /*flags=MS_REC|MS_STRICTATIME|MS_NODIRATIME*/ 0x1004800,
                      /*opts=*/0, /*chdir=*/0, /*size=*/0, /*img=*/0x20000000));
  NONFAILING(
      memcpy((void*)0x20000040,
             "./"
             "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
             251));
  res = syscall(__NR_open, /*file=*/0x20000040ul, /*flags=*/0ul,
                /*mode=S_IWOTH*/ 2ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_getdents64, /*fd=*/r[0], /*ent=*/0ul, /*count=*/0ul);
  return 0;
}