// https://syzkaller.appspot.com/bug?id=2bc87de0b49d648048d822d0d2c0d6a98bc64f73
// 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");
  }
  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;
    }
  }
}

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x200000000040, "ext4\000", 5);
  memcpy((void*)0x2000000001c0, "./file2\000", 8);
  memcpy((void*)0x200000000380, "init_itable", 11);
  *(uint8_t*)0x20000000038b = 0x3d;
  sprintf((char*)0x20000000038c, "0x%016llx", (long long)0);
  *(uint8_t*)0x20000000039e = 0x2c;
  memcpy((void*)0x20000000039f, "test_dummy_encryption=v1", 24);
  *(uint8_t*)0x2000000003b7 = 0x2c;
  memcpy((void*)0x2000000003b8, "debug_want_extra_isize", 22);
  *(uint8_t*)0x2000000003ce = 0x3d;
  sprintf((char*)0x2000000003cf, "0x%016llx", (long long)0x6a);
  *(uint8_t*)0x2000000003e1 = 0x2c;
  memcpy((void*)0x2000000003e2, "user_xattr", 10);
  *(uint8_t*)0x2000000003ec = 0x2c;
  memcpy((void*)0x2000000003ed, "noload", 6);
  *(uint8_t*)0x2000000003f3 = 0x2c;
  memcpy((void*)0x2000000003f4, "quota", 5);
  *(uint8_t*)0x2000000003f9 = 0x2c;
  *(uint8_t*)0x2000000003fa = 0;
  memcpy(
      (void*)0x200000000d80,
      "\x78\x9c\xec\xdb\xcb\x6f\x1b\xc5\x1f\x00\xf0\xef\xae\x93\xf6\xd7\xd7\x2f"
      "\xa6\x2a\x8f\x3e\x80\x40\x41\x54\x3c\x92\x26\x2d\xa5\x07\x2e\x20\x90\x38"
      "\x80\x84\x04\x87\x72\x0c\x49\x5a\x85\xba\x0d\x6a\x82\x44\xab\x08\x02\x42"
      "\xe5\x88\x2a\x71\x47\x1c\x91\xf8\x0b\x38\xc1\x05\x01\x27\x24\xae\x70\x47"
      "\x95\x2a\x94\x4b\x0b\x27\xa3\xb5\xbd\x89\xed\xd8\x49\x1c\xec\xb8\xe0\xcf"
      "\x47\xda\x64\x66\x77\xac\x99\xaf\x77\xc7\x3b\xb3\x63\x07\x30\xb0\x46\xb3"
      "\x3f\x49\xc4\xfe\x88\xf8\x35\x22\x46\xaa\xd9\xc6\x02\xa3\xd5\x7f\x77\x56"
      "\x96\xa6\xff\x5c\x59\x9a\x4e\xa2\x5c\x7e\xe3\x8f\xa4\x52\xee\xf6\xca\xd2"
      "\x74\x5e\x34\x7f\xdd\xbe\x3c\x33\x14\x91\x7e\x92\xc4\xd1\x16\xf5\x2e\x5c"
      "\xbd\x76\x71\xaa\x54\x9a\xbd\x52\xcb\x8f\x2f\x5e\x7a\x77\x7c\xe1\xea\xb5"
      "\x67\xe6\x2e\x4d\x5d\x98\xbd\x30\x7b\x79\xf2\xec\xd9\xd3\xa7\x26\x9e\x3b"
      "\x33\xf9\x6c\x57\xe2\xcc\xe2\xba\x7d\xe4\x83\xf9\x63\x87\x5f\x79\xeb\xc6"
      "\x6b\xd3\xe7\x6e\xbc\xfd\xe3\xd7\x49\x1e\x7f\x53\x1c\x5d\x32\xba\xd1\xc1"
      "\xc7\xcb\xe5\x2e\x57\xd7\x5f\x07\xea\xd2\xc9\x50\x1f\x1b\x42\x47\x0a\xd5"
      "\x6e\x1a\xc3\x95\xfe\x3f\x12\x85\x58\x3b\x79\x23\xf1\xf2\xc7\x7d\x6d\x1c"
      "\xd0\x53\xe5\x72\xb9\x7c\x5f\xfb\xc3\xcb\x65\xe0\x3f\x2c\x89\x7e\xb7\x00"
      "\xe8\x8f\xfc\x46\x9f\xcd\x7f\xf3\x6d\x87\x86\x1e\x77\x85\x5b\x2f\x54\x27"
      "\x40\x59\xdc\x77\x6a\x5b\xf5\xc8\x50\xa4\xb5\x32\xc3\x4d\xf3\xdb\x6e\x1a"
      "\x8d\x88\x73\xcb\x7f\x7d\x91\x6d\xd1\xf0\x1c\xc2\x24\x1a\x00\xe8\x8d\x6f"
      "\xb3\xf1\xcf\xd3\xad\xc6\x7f\x69\xd4\x3f\x17\xfa\x7f\x6d\x0d\xa5\x18\x11"
      "\xf7\x44\xc4\xc1\x88\x38\x13\x11\x87\x22\xe2\xde\x88\x4a\xd9\xfb\x23\xe2"
      "\x81\x0e\xeb\x6f\x5e\x24\x59\x3f\xfe\x4c\x6f\x6e\x2b\xb0\x2d\xca\xc6\x7f"
      "\xcf\xd7\xd6\xb6\x1a\xc7\x7f\xf9\xe8\x2f\x8a\x85\x5a\xee\x40\x25\xfe\xe1"
      "\xe4\xfc\x5c\x69\xf6\x64\xed\x3d\x39\x11\xc3\xbb\xb3\xfc\xc4\x06\x75\x7c"
      "\xf7\xd2\x2f\x9f\xb5\x3b\x56\x3f\xfe\xcb\xb6\xac\xfe\x7c\x2c\x18\x95\xe7"
      "\xf3\xe9\xcd\xa1\xdd\x8d\xaf\x99\x99\x5a\x9c\xfa\x67\x51\xaf\xb9\xf5\x51"
      "\xc4\x91\xa1\x56\xf1\x27\xab\x23\xd0\x24\x22\x0e\x47\xc4\x91\x6d\xd6\x31"
      "\xf7\xe4\x57\xc7\xda\x1d\xdb\x2c\xfe\x0d\x75\x61\x88\x5c\xfe\x32\xe2\x89"
      "\xea\xf9\x5f\x8e\xa6\xf8\x73\xc9\xc6\xeb\x93\xe3\xff\x8b\xd2\xec\xc9\xf1"
      "\xfc\xaa\x58\xef\xa7\x9f\xaf\xbf\xde\xae\xfe\x8e\xe2\xef\xc1\x94\x20\x3b"
      "\xff\x7b\x5b\x5e\xff\xab\xf1\x17\x93\xfa\xf5\xda\x85\xce\xeb\xb8\xfe\xdb"
      "\xa7\x6d\xe7\x94\x9b\xc7\xdf\xfa\xfa\xdf\x95\xbc\xd9\xb0\xef\xfd\xa9\xc5"
      "\xc5\x2b\x13\x11\xbb\x92\x57\xab\x8d\xae\xdf\x3f\xd9\x54\x6e\x72\xad\x7c"
      "\x16\xff\x89\xe3\xad\xfb\xff\xc1\x58\x7b\x27\x8e\x46\x44\x76\x11\x3f\x18"
      "\x11\x0f\x45\xc4\xc3\xb5\xb6\x3f\x12\x11\x8f\x46\xc4\xf1\x0d\xe2\xff\xe1"
      "\xc5\xc7\xde\x69\xd8\x51\xe8\x24\xfe\xde\xca\xe2\x9f\xe9\xe8\xfc\xaf\x25"
      "\x76\x45\xf3\x9e\xd6\x89\xc2\xc5\xef\xbf\x69\xa8\xb4\xd8\x49\xfc\xd9\xf9"
      "\x3f\x5d\x49\x9d\xa8\xed\xd9\xca\xe7\xdf\x56\xda\xb5\xbd\xab\x19\x00\x00"
      "\x00\xfe\x7d\xd2\x88\xd8\x1f\x49\x3a\xb6\x9a\x4e\xd3\xb1\xb1\xea\x77\xf8"
      "\x0f\xc5\xde\xb4\x34\xbf\xb0\xf8\xd4\xf9\xf9\xf7\x2e\xcf\x54\x7f\x23\x50"
      "\x8c\xe1\x34\x7f\xd2\x35\x52\xf7\x3c\x74\xa2\x36\xad\xcf\xf3\x93\x4d\xf9"
      "\x53\xb5\xe7\xc6\x9f\x17\xf6\x54\xf2\x63\xd3\xf3\xa5\x99\x7e\x07\x0f\x03"
      "\x6e\x5f\x9b\xfe\x9f\xf9\xbd\xd0\xef\xd6\x01\x3d\xe7\xab\x66\x30\xb8\xf4"
      "\x7f\x18\x5c\xdb\xeb\xff\xc5\xae\xb7\x03\xd8\x79\xee\xff\x30\xb8\x5a\xf4"
      "\xff\x3d\xfd\x68\x07\xb0\xf3\x5a\xdd\xff\x3f\xec\x43\x3b\x80\x9d\xd7\xd4"
      "\xff\x2d\xfb\xc1\x00\x31\xff\x87\xc1\xa5\xff\xc3\xe0\xd2\xff\x61\x20\x2d"
      "\xec\x89\xcd\x7f\x24\x2f\x21\xb1\x2e\x11\xe9\x5d\xd1\x0c\x89\x1e\x25\xfa"
      "\xfd\xc9\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd0\x1d\x7f\x07"
      "\x00\x00\xff\xff\x6c\xdb\xe6\xf3",
      1088);
  syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x2000000001c0,
                  /*flags=MS_NODEV|MS_NOATIME*/ 0x404, /*opts=*/0x200000000380,
                  /*chdir=*/0x83, /*size=*/0x440, /*img=*/0x200000000d80);
  memcpy((void*)0x200000000100, "./file1\000", 8);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000100ul,
          /*flags=O_CREAT|O_RDWR*/ 0x42,
          /*mode=S_IXOTH|S_IROTH|S_IRGRP|S_IXUSR|S_IWUSR|S_IRUSR*/ 0x1e5);
  memcpy((void*)0x200000000180, "./bus\000", 6);
  syscall(__NR_open, /*file=*/0x200000000180ul,
          /*flags=O_TRUNC|O_SYNC|O_NOCTTY|O_NOATIME|O_LARGEFILE|O_CREAT|0x3e*/
          0x14937eul, /*mode=S_IXOTH|S_IWGRP|S_IRUSR*/ 0x111ul);
  memcpy((void*)0x200000000280, "/dev/loop", 9);
  *(uint8_t*)0x200000000289 = 0x30;
  *(uint8_t*)0x20000000028a = 0;
  memcpy((void*)0x200000000140, "./bus\000", 6);
  syscall(__NR_mount, /*src=*/0x200000000280ul, /*dst=*/0x200000000140ul,
          /*type=*/0ul, /*flags=MS_REC|MS_BIND*/ 0x5000ul, /*data=*/0ul);
  memcpy((void*)0x200000000000, "./bus\000", 6);
  res = syscall(__NR_open, /*file=*/0x200000000000ul, /*flags=*/0ul,
                /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x200000000540 = 0;
  *(uint64_t*)0x200000000548 = 0;
  *(uint64_t*)0x200000000550 = 0;
  *(uint64_t*)0x200000000558 = 1;
  *(uint64_t*)0x200000000560 = 0x8005;
  *(uint32_t*)0x200000000568 = 0;
  *(uint32_t*)0x20000000056c = 0;
  *(uint32_t*)0x200000000570 = 0x19;
  *(uint32_t*)0x200000000574 = 0x1c;
  memcpy((void*)0x200000000578,
         "\xef\x35\x9f\x41\x3b\xb9\x38\x52\xf7\xd6\xa4\xae\x6d\xdd\xfb\xd1\xce"
         "\x5d\x29\xc2\xee\x5e\x5c\xa9\x00\x0f\xf8\xee\x09\xe7\x37\xff\x0e\xdf"
         "\x11\x0f\xf4\x11\x76\x39\xc2\xeb\x4b\x78\xc6\x60\xe6\x77\xdf\x70\x19"
         "\x05\xb9\xaa\xfa\xb4\xaf\xaa\xf7\x55\xa3\xf6\xa0\x04",
         64);
  memcpy((void*)0x2000000005b8,
         "\x03\x6c\x47\xc6\x78\x08\x20\xd1\xcb\xf7\x96\x6d\x61\xfd\xcf\x33\x52"
         "\x63\xbd\x9b\xff\xbc\xc2\x54\x2d\xed\x71\x03\x82\x59\xca\x17\x1c\xe1"
         "\xa3\x11\xef\x54\xec\x32\xd7\x1e\x14\xef\x3d\xc1\x77\xe9\xb4\x8b\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         64);
  memcpy((void*)0x2000000005f8,
         "\xf2\x83\x59\x73\x8e\x22\x9a\x4c\x66\x81\x00\x00\x00\x00\x00\xd3\x00"
         "\xe6\xd6\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01",
         32);
  *(uint64_t*)0x200000000618 = 0x204;
  *(uint64_t*)0x200000000620 = 0;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4c04, /*arg=*/0x200000000540ul);
  memcpy((void*)0x200000000040, "./file1\000", 8);
  res = syscall(__NR_open, /*file=*/0x200000000040ul,
                /*flags=O_TRUNC|O_CREAT|O_CLOEXEC|O_RDWR*/ 0x80242ul,
                /*mode=*/0ul);
  if (res != -1)
    r[1] = res;
  syscall(__NR_write, /*fd=*/r[1], /*data=*/0ul, /*len=*/0x4aul);
}
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;
}