// 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");
  } 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;
}

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;
  install_segv_handler();
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$udf arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {75 64 66 00} (length 0x4)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61
  //      61 61 00} (length 0xfd)
  //    }
  //    flags: mount_flags = 0x10 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //      }
  //    }
  //    chdir: int8 = 0x11 (1 bytes)
  //    size: len = 0x489 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x489)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000180, "udf\000", 4));
  NONFAILING(
      memcpy((void*)0x2000000005c0,
             "./"
             "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
             "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
             253));
  NONFAILING(memcpy(
      (void*)0x200000000a40,
      "\x78\x9c\xec\xdb\xdb\x6b\x1c\xe5\x1f\xc7\xf1\xcf\x77\xb2\xbb\xd9\x6c\xfb"
      "\xfb\x75\xdb\xa6\x69\x95\x82\xab\x82\x4a\xc5\x9a\x43\x8f\xc6\x8b\x1e\x62"
      "\xa8\xd0\xa4\x39\x34\x22\x45\x85\x98\x6c\xe2\xd2\x9c\xc8\xa6\x92\x14\xd1"
      "\xe2\x8d\xb7\xde\x78\x23\x22\x0a\x0a\x52\x45\x0b\x22\xde\x78\xa5\xbd\xf3"
      "\x0f\x50\x10\x04\xbd\xf0\x42\x04\xf7\xc2\x03\x08\x82\xcc\xec\xcc\xce\x64"
      "\xb3\x69\xd2\xee\x21\xdd\xf6\xfd\x82\x76\x27\xcf\x7c\x67\xe6\x39\xec\x33"
      "\xcf\xb3\x3b\xcf\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\x48\xa7"
      "\x9e\x3a\xd9\xd9\x65\x5b\x9d\x0b\x00\x00\xd0\x48\x83\xa3\x23\x9d\xdd\x8c"
      "\xff\x00\x00\xdc\x55\xce\xf3\xf9\x1f\x00\x00\xe0\x6e\x62\x72\xf4\xbd\x4c"
      "\x7d\x23\x05\x1b\xf0\xfe\x2e\x4a\x9e\xcd\xcd\x5d\x5a\x1e\xeb\xeb\xaf\x7c"
      "\x58\x9b\x79\x47\xb6\x78\xf1\xee\xbf\x64\x57\x77\xcf\xa1\xc3\x47\x8e\x1e"
      "\x0b\x5e\x6f\x7c\x7c\xad\xdd\xa3\x73\xa3\xe7\x4f\x66\x4e\xcf\xcf\x2e\x2c"
      "\x66\xf3\xf9\xec\x64\x66\x6c\x2e\x37\x31\x3f\x99\xdd\xf4\x19\xaa\x3d\xbe"
      "\xdc\x01\xaf\x02\x32\xb3\x17\x2f\x4d\x4e\x4d\xe5\x33\xdd\x07\x7b\x56\xed"
      "\x5e\x4e\xff\xd2\xba\xad\x23\xdd\x7b\xb4\xe3\x84\x13\xc4\x8e\xf5\xf5\xf7"
      "\x8f\x46\x62\x62\xf1\x5b\xbe\xfa\x1a\xeb\xcd\xf0\x13\x72\xb4\x4f\xa6\xdf"
      "\x1e\xfa\xd4\x06\x25\x39\xaa\xbe\x2e\x36\x78\xef\xd4\x5b\x9b\x57\x88\x03"
      "\x5e\x21\xc6\xfa\xfa\xbd\x82\xcc\xe4\xc6\xe7\x96\xdc\x9d\x43\x41\x45\x38"
      "\x7e\x59\x7d\x89\xa0\x8e\x1a\xd0\x16\x55\x69\x97\xdc\x7c\x59\xa2\x36\x9f"
      "\xd9\xe2\x72\x74\x42\xa6\x8e\x9f\x0b\x76\x4e\x52\x4b\x50\x0f\x8f\x7a\x5f"
      "\x0c\xaf\x7f\x60\xac\x26\x97\xbf\x65\x6e\x3e\x9f\x97\xf4\x80\x9a\xa0\xcd"
      "\x6e\x63\xad\x72\xf4\xa3\x4c\xb3\x3b\x92\x1a\xda\xfa\x66\x45\x83\xc5\xe4"
      "\x68\x59\xa6\x3f\x7a\x0b\x36\xec\xdd\x0f\xdc\xfe\xe4\xde\x36\xcf\x3e\x93"
      "\x79\x7a\x6e\x6a\x3e\x12\x3b\x64\x7e\x8f\x6a\xf6\xf1\xa1\x91\x6e\xf3\x7b"
      "\x53\x52\x8e\x06\xbd\x3b\x7e\xc1\x46\xb6\x3a\x33\x68\x38\x77\xb2\xf4\x96"
      "\x4c\x7b\x3e\x7e\xd9\x9b\x57\xc8\x9b\x97\xee\xe8\x3d\xfa\xc4\x70\x4f\x74"
      "\x86\xb1\x77\x83\xf3\xb8\xb1\x07\xfd\xf9\xe3\x66\xc6\xe4\xb8\x1f\x3b\x64"
      "\x43\x66\x4e\xed\xcb\x05\x00\x00\x00\x00\x00\x00\x40\x6a\x35\x47\xdf\xc9"
      "\x54\xf8\x2a\x13\x26\xa6\x4d\x4e\xe4\x91\x71\x52\xc5\x07\x43\x99\xad\xc9"
      "\x22\x80\x7a\x31\x47\x6f\xcb\x34\x3c\x52\xf0\xbe\x86\x8f\xae\x4b\x69\x89"
      "\xac\xef\x29\x69\xf6\x67\x7f\xf5\xcd\x7f\x5b\xf2\xf4\xfc\xc2\xca\x62\x6e"
      "\xfa\xa5\xa5\x8a\xfb\x53\xc9\x93\x2f\xe6\x97\x16\xc7\x27\x2a\xef\x56\x9b"
      "\x7b\x9f\x6d\x89\xa6\x6c\xb4\x8e\xa5\x4a\x71\x73\x94\x90\xe9\xb9\x3f\x3f"
      "\xb2\xd2\x75\x8b\xf7\x7f\x7f\x29\x40\x98\x9b\x0f\x9f\x0c\xd7\xcc\x24\xcb"
      "\xaf\xef\xbd\x6f\xfe\x5f\x5c\xcf\x14\x3c\x43\x3a\x7e\x61\x6f\x74\xbb\x62"
      "\x96\x6f\xe2\xf9\xa8\x7b\x4d\x33\x47\x4b\x32\x9d\xda\xb5\xcf\x5f\xab\x92"
      "\xd2\x9a\x3a\x53\x31\xee\x73\x99\x7e\x7f\x6f\xbf\x1f\xe7\x24\xdc\xcc\x07"
      "\xa7\x4d\x17\xcf\x38\x95\x9b\xc9\x76\xba\xb1\x5f\xcb\xf4\xfe\xbf\x41\xac"
      "\xb7\x2c\x4a\xdb\xfc\xd8\xdd\x61\x6c\x97\x1b\x6b\x32\xbd\x39\xb0\x3a\x76"
      "\xbb\x1f\xdb\x1e\xc6\x76\xbb\xb1\xfd\x32\x5d\x7f\xa1\x72\xec\x9e\x30\xb6"
      "\xc7\x8d\x7d\x5d\xa6\x85\x5f\x33\x41\x6c\xca\x8d\xbd\xcf\x8f\xed\x08\x63"
      "\x0f\x4e\xcc\xcf\x4c\x56\xaa\x4a\xe0\x66\xb9\xfd\xff\x27\x99\xde\x6d\xcf"
      "\x58\xd0\x37\x62\xc5\xf7\xdf\xda\xfe\xff\x4a\x38\x16\x5c\x29\x3f\xd1\x3a"
      "\x7d\xbe\xda\xfe\x9f\x8e\xa4\x5d\xf1\xfb\xf5\x05\xb7\xff\xff\xb5\xcf\xeb"
      "\xcb\x5e\xff\x77\x2a\xf7\xff\x37\x64\xfa\xe4\x8b\xfd\x7e\x5c\xb1\xef\x25"
      "\xfc\xfd\x3b\xbd\xff\xc3\xfe\xff\xac\x4c\xd3\xdf\xae\x8e\x4d\xf9\xb1\xbb"
      "\xc2\xd8\xae\x4d\x57\x6c\x93\x70\xdb\x7f\xbf\x4c\x67\xf6\x5c\x2b\xd5\x8d"
      "\xdf\xfe\x7e\x0b\x84\xad\x16\x6d\xff\x7b\xcb\xdf\x1d\x75\x6a\xff\x9d\x91"
      "\xb4\xb4\x7f\xdd\xd6\xda\x14\x1d\x92\xf2\x2b\x97\x2f\x8e\xcf\xcc\x64\x17"
      "\xd9\x60\x83\x0d\x36\x4a\x1b\x5b\x7d\x67\x42\x23\xb8\xe3\xff\x67\xee\x2c"
      "\xea\xcb\x1f\x4a\xf3\x1d\x7f\xfc\xf7\x3f\xa6\x84\x33\xab\xbf\x5f\x0d\xc7"
      "\xff\xde\xf2\x13\xd5\x69\xfc\xdf\x15\x49\xeb\xf5\x67\x23\xf1\x98\x94\x5c"
      "\x9a\x5d\x88\xef\x95\x92\xf9\x95\xcb\x8f\xe5\x66\xc7\xa7\xb3\xd3\xd9\xb9"
      "\x43\x9d\x47\x3a\x0f\x1f\x3a\xde\x75\xfc\x58\x3c\x11\x4c\xee\xc2\xad\xaa"
      "\xeb\xea\x4e\xe4\xb6\xff\x37\x32\xfd\xb3\xed\x6a\xe9\xf3\xee\xea\xf9\x5f"
      "\xe5\xf9\x7f\xaa\xfc\x44\x75\x6a\xff\xdd\x91\xb4\xd4\xaa\xf9\x4a\xd5\x45"
      "\x87\xdf\xfe\x57\x65\xba\xff\xfa\xb5\xd2\xf7\x12\x37\x9a\xff\x07\xdf\xff"
      "\x3c\xf2\x60\xf1\xb5\xd4\x3f\xeb\xd4\xfe\xed\x91\xb4\xb4\x7f\xdd\xff\xd5"
      "\xa6\xe8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd0\xd4\xe2"
      "\xe6\xe8\x03\x99\xce\x3c\x1e\xb3\xe0\xb7\x66\x9b\x59\xff\xb7\xe6\x07\x68"
      "\x75\x5a\xff\xd5\x11\x49\x9b\x6c\xd0\xef\x15\xaa\xae\x54\x00\x68\x02\x8e"
      "\x1c\xbd\x23\xd3\xc3\x2a\xd8\x6b\x6e\xc2\x76\x69\x20\xfa\x8a\x3b\xda\x7f"
      "\x01\x00\x00\xff\xff\x47\x01\x23\x8e",
      1161));
  NONFAILING(syz_mount_image(/*fs=*/0x200000000180, /*dir=*/0x2000000005c0,
                             /*flags=MS_SYNCHRONOUS*/ 0x10,
                             /*opts=*/0x2000000001c0, /*chdir=*/0x11,
                             /*size=*/0x489, /*img=*/0x200000000a40));
  //  syz_mount_image$fuse arguments: [
  //    fs: nil
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x3000009 (8 bytes)
  //    opts: nil
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: const = 0x0 (8 bytes)
  //    img: nil
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x2000000000c0, "./bus\000", 6));
  NONFAILING(syz_mount_image(
      /*fs=*/0, /*dir=*/0x2000000000c0,
      /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_RDONLY|MS_NOEXEC*/ 0x3000009,
      /*opts=*/0, /*chdir=*/1, /*size=*/0, /*img=*/0));
  //  mount$overlay arguments: [
  //    src: const = 0x0 (8 bytes)
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {6f 76 65 72 6c 61 79 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    opts: ptr[in, fs_options[overlay_options]] {
  //      fs_options[overlay_options] {
  //        elems: array[fs_opt_elem[overlay_options]] {
  //          fs_opt_elem[overlay_options] {
  //            elem: union overlay_options {
  //              workdir: fs_opt["workdir", stringnoz[filename]] {
  //                name: buffer: {77 6f 72 6b 64 69 72} (length 0x7)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {2e 2f 62 75 73} (length 0x5)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[overlay_options] {
  //            elem: union overlay_options {
  //              lowerdir: fs_opt["lowerdir", stringnoz[filename]] {
  //                name: buffer: {6c 6f 77 65 72 64 69 72} (length 0x8)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {2e} (length 0x1)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[overlay_options] {
  //            elem: union overlay_options {
  //              upperdir: fs_opt["upperdir", stringnoz[filename]] {
  //                name: buffer: {75 70 70 65 72 64 69 72} (length 0x8)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {2e 2f 66 69 6c 65 30} (length 0x7)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //  ]
  NONFAILING(memcpy((void*)0x200000000100, "./file0\000", 8));
  NONFAILING(memcpy((void*)0x200000000b80, "overlay\000", 8));
  NONFAILING(memcpy((void*)0x200000000000, "workdir", 7));
  NONFAILING(*(uint8_t*)0x200000000007 = 0x3d);
  NONFAILING(memcpy((void*)0x200000000008, "./bus", 5));
  NONFAILING(*(uint8_t*)0x20000000000d = 0x2c);
  NONFAILING(memcpy((void*)0x20000000000e, "lowerdir", 8));
  NONFAILING(*(uint8_t*)0x200000000016 = 0x3d);
  NONFAILING(memset((void*)0x200000000017, 46, 1));
  NONFAILING(*(uint8_t*)0x200000000018 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000019, "upperdir", 8));
  NONFAILING(*(uint8_t*)0x200000000021 = 0x3d);
  NONFAILING(memcpy((void*)0x200000000022, "./file0", 7));
  NONFAILING(*(uint8_t*)0x200000000029 = 0x2c);
  NONFAILING(*(uint8_t*)0x20000000002a = 0);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000100ul,
          /*type=*/0x200000000b80ul, /*flags=*/0ul, /*opts=*/0x200000000000ul);
  return 0;
}