// https://syzkaller.appspot.com/bug?id=ff9fe3de46d66c92f26a627abe9e85d0518c9890
// 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
#ifndef __NR_openat2
#define __NR_openat2 437
#endif
#ifndef __NR_renameat2
#define __NR_renameat2 316
#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 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, loopfd = -1, 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) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    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) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  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 (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000000, "hfsplus\000", 8);
  memcpy((void*)0x20000200, "./file0\000", 8);
  memcpy(
      (void*)0x20000cc0,
      "\x78\x9c\xec\xdd\xcd\x6f\x1c\x67\x1d\x07\xf0\xef\xac\x1d\x27\x1b\x20\x75"
      "\xdb\xa4\x0d\x52\xa5\x5a\x8d\x54\x10\x16\x89\x5f\xe4\x82\xb9\x10\x10\x42"
      "\x3e\x54\xa8\x2a\x07\xce\x56\xe2\x34\x56\x36\x69\xb1\x5d\xe4\x54\x88\x86"
      "\xf7\x2b\x87\xfe\x01\xe5\xe0\x1b\x27\xa4\xde\x23\x95\x0b\x17\xb8\xf5\xea"
      "\x63\x25\x24\x2e\xbd\x90\x9c\x16\xed\xec\xec\x7a\xbd\x5e\x87\xdd\xc4\xb1"
      "\x37\xf4\xf3\x89\x66\x9f\xe7\x99\xe7\x99\x67\x7e\xf3\xdb\x99\xd9\x97\xc8"
      "\xda\x00\x5f\x5a\x2b\xb3\x99\xbc\x9f\x22\x2b\xb3\x6f\x6e\xb7\xda\xbb\x3b"
      "\x8b\x8d\xdd\x9d\xc5\xdb\x9d\x7a\x92\xd3\x49\x6a\xc9\x64\xbb\x48\xf1\x9f"
      "\x66\xb3\xf9\x69\x72\x35\xed\x25\x5f\x6f\xad\xac\xa6\x2b\x0e\xdb\xcf\x47"
      "\xeb\xcb\x6f\x7f\xf6\xc5\xee\xe7\xed\xd6\x64\xb5\x94\xe3\x6b\x9d\xc6\xe3"
      "\xbb\x57\x2d\x99\x49\x32\x51\x95\x47\x35\xdf\xb5\x27\x9e\xaf\xe8\x66\xa6"
      "\x95\xb0\x4b\x65\x79\xf7\xc9\x22\x84\xa3\x70\x2a\x49\x73\x9f\x9f\xff\xfd"
      "\xab\xdd\x9e\x1e\xf5\x41\x5b\x9f\x39\x96\x18\x81\xa7\xab\x68\xbf\x6e\xd6"
      "\xfa\xd7\x4f\x27\x67\xab\x0b\xbd\xf5\x3e\xa0\xfd\xaa\x38\x60\xdc\xf8\x7a"
      "\x58\xdd\xd7\xf6\xaf\xbd\x77\x52\xe1\x00\x00\x00\xc0\x31\x7a\xae\x5e\x7e"
      "\xde\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x46\x50\xfd\xfe\x7f\x51\x35"
      "\x6b\x49\x9a\x1f\x26\xc5\x4c\x8a\xce\xef\xff\x4f\xf5\xf4\x4f\x9d\x60\xa8"
      "\x83\xbd\x3a\xda\xf0\xfb\x4f\x2b\x0e\x00\x00\x00\x00\x00\x00\x00\x38\x46"
      "\xaf\x3e\xc8\x83\x6c\xe7\x5c\xa7\xdd\x2c\xca\xff\xf3\x7f\xad\x6c\x9c\x2f"
      "\x1f\xbf\x92\xf7\xb3\x99\xb5\x6c\xe4\x72\xb6\xb3\x9a\xad\x6c\x65\x23\xf3"
      "\x49\xa6\x7b\x26\x9a\xda\x5e\xdd\xda\xda\x98\x1f\x62\xcb\x85\x81\x5b\x2e"
      "\x94\xf5\x89\x43\x03\x3d\x5d\x95\xf5\xa3\x3b\x76\x00\x00\x00\x00\x00\x00"
      "\x00\xf8\x3f\xf2\x9b\xac\xec\xfd\xff\x3f\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x8c\x83\x22\x99\x68\x17\xe5\x72\xbe\x53\x9f\x4e\x6d\x32\xc9"
      "\x99\x24\x53\xad\x71\xf7\x92\x7f\x76\xea\xcf\xb2\xfb\x27\x1d\x00\x00\x00"
      "\x00\x1c\x83\xe7\x1e\xe4\x41\xb6\x73\xae\xd3\x6e\x16\xe5\x67\xfe\x97\xca"
      "\xcf\xfd\x67\xf2\x7e\xee\x64\x2b\xeb\xd9\x4a\x23\x6b\xb9\x5e\x7e\x17\xd0"
      "\xfe\xd4\x5f\xdb\xdd\x59\x6c\xec\xee\x2c\xde\x6e\x2d\x07\xe7\xfd\xc1\xbf"
      "\x47\x0a\xa3\x9c\x31\xed\xef\x1e\x06\xef\xf9\x62\x39\xa2\x9e\x1b\x59\x2f"
      "\xd7\x5c\xce\xb5\xbc\x9b\x46\xae\xa7\x56\x6e\xd9\x72\xb1\x13\xcf\xe0\xb8"
      "\x7e\xdd\x8a\xa9\xf8\x7e\x65\x98\xb0\x8a\xfd\xd5\x3f\xed\x5f\x75\xd4\x46"
      "\xfc\x32\x65\xba\xcc\xc8\xa9\x6e\x46\xe6\xaa\xd8\x5a\xd9\x78\xfe\xd1\x99"
      "\x18\xf1\xd9\xe9\xdf\xd3\x7c\x6a\xdd\x60\xcf\xf7\xed\xa9\xef\x20\x46\xcf"
      "\x79\x92\xb3\x55\xd9\x3a\x9e\x3f\x3c\xdd\x9c\x8f\xa8\x3f\x13\x0b\x3d\x67"
      "\xdf\x4b\x8f\xce\x79\xf2\x8d\x4f\xfe\xf2\xb3\x9b\x8d\x3b\xb7\x6e\xde\xd8"
      "\x9c\x1d\x9f\x43\x1a\xce\x44\x55\x36\x3b\x2b\xfa\x33\xb1\xd8\x93\x89\x97"
      "\x9f\xd5\x4c\x4c\x0c\x33\xa8\xff\x32\x9d\x2b\x33\x71\xa1\xdb\x5e\xc9\x8f"
      "\xf3\xd3\xcc\x66\x26\x6f\x65\x23\xeb\xf9\x45\x56\xb3\x95\xb5\xcc\xe4\x47"
      "\x65\x6d\xb5\x3a\x9f\x8b\x9e\xb9\x0e\xc9\xd4\xd5\x7d\xad\xb7\x86\x89\xac"
      "\xf5\xbc\x4c\x7c\x92\x91\x63\x7a\xad\xdc\xf6\x5c\xd6\xf3\x93\xbc\x9b\xeb"
      "\x59\xcb\x1b\xe5\xbf\x85\xcc\xe7\x3b\x59\xca\x52\x96\x7b\x9e\xe1\x0b\x43"
      "\xdc\x69\x6b\x87\x5c\xf5\xcd\xaf\x0d\x0c\xfe\xd2\x37\xab\x4a\x3d\xc9\x1f"
      "\xab\x72\x3c\xb4\xf2\xfa\x7c\xf7\xf4\xd8\x7f\xcf\x9d\x2e\xfb\x7a\xd7\xec"
      "\x65\xe9\x85\xbe\x2c\xf5\x9d\xea\xa3\xdf\x1b\x7b\xce\xcf\xd6\x3e\x7e\x5b"
      "\x95\xe3\xa1\x3f\x13\xf3\x3d\x99\x78\xf1\xd1\xe7\xcb\x9f\xcb\xdb\xca\x66"
      "\xe3\xce\xad\x8d\x9b\xab\xef\x0d\xb9\xbf\xd7\xcb\xc7\x66\x79\x1d\xfd\x7e"
      "\xac\x5e\x25\x5a\xe7\xcb\x0b\x49\x26\xcb\xd6\xfe\xb3\xa3\xd5\xf7\xe2\xc0"
      "\xbe\xf9\xb2\xef\x7c\xb7\xaf\x76\xa0\xef\x42\xb7\xaf\xbc\x52\xbb\x17\xc8"
      "\xc1\x2b\x75\xaa\x7a\x0f\x77\x70\xa6\x85\xb2\xef\xe5\x81\x7d\x8b\x65\xdf"
      "\xc5\x9e\xbe\x41\xef\xb7\x00\x18\x7b\x67\xbf\x75\x76\xaa\xfe\xaf\xfa\x3f"
      "\xea\x1f\xd7\x7f\x57\xbf\x59\x7f\xf3\xcc\x0f\x4f\x7f\xf7\xf4\x2b\x53\x39"
      "\xf5\xb7\x53\xdf\x9b\x9c\x9b\x78\xbd\xf6\x4a\xf1\xd7\x7c\x9c\x5f\xed\x7d"
      "\xfe\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x1e\xdf\xe6\xdd\x0f\x6e\xad\x36\x1a\x6b\x1b"
      "\x7d\x95\x66\xb3\xf9\xe1\x21\x5d\xcf\x72\xa5\xf3\x43\x4a\xe3\x12\xcf\x90"
      "\x95\x87\xe3\x11\xc6\x81\x4a\xd1\xfe\xbd\xa0\xfc\xef\xc1\x0f\x9b\xcd\x66"
      "\xb5\xa6\x78\xdc\x9d\x16\x39\xae\xe3\x6a\x56\xc6\x25\xcf\x27\x51\x39\xc9"
      "\xbb\x12\x70\x1c\xae\x6c\xdd\x7e\xef\xca\xe6\xdd\x0f\xbe\xbd\x7e\x7b\xf5"
      "\x9d\xb5\x77\xd6\xee\x2c\x2f\x2d\x2d\xcf\x2d\x2f\xbd\xb1\x78\xe5\xc6\x7a"
      "\x63\x6d\xae\xfd\x78\xd2\x51\x02\x4f\xc3\xde\x8b\xfe\x49\x47\x02\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x0c\x6b\x84\x3f\x0c\x68\x0d\x7f\xac\x3f\x27"
      "\x38\xe9\x63\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\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x9e\x6d\x2b\xb3\x99\xbc\x9f\x22\xf3\x73\x97"
      "\xe7\x5a\xed\xdd\x9d\xc5\x46\x6b\xe9\xd4\xf7\x46\x4e\x26\xa9\x25\x29\x7e"
      "\x99\x14\x9f\x26\x57\xd3\x5e\x32\xdd\x33\x5d\x71\xd8\x7e\x3e\x5a\x5f\x7e"
      "\xfb\xb3\x2f\x76\x3f\xdf\x9b\x6b\xb2\x33\xbe\xf6\xa8\xed\x86\x73\xaf\x5a"
      "\x32\x93\x64\xa2\x2a\x8f\x6a\xbe\x6b\x4f\x3c\x5f\xd1\x3d\xc2\x56\xc2\x2e"
      "\x75\x12\x07\x27\xed\xbf\x01\x00\x00\xff\xff\x09\xad\x14\x09",
      1617);
  syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x20000200, /*flags=*/0x8004,
                  /*opts=*/0x200000c0, /*chdir=*/5, /*size=*/0x651,
                  /*img=*/0x20000cc0);
  memcpy((void*)0x20004280, "./file0\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20004280ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20004280, "./file0\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20004280ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[1] = res;
  memcpy((void*)0x20000080, "./file0\000", 8);
  memcpy((void*)0x200000c0, "./bus\000", 6);
  syscall(__NR_linkat, /*oldfd=*/r[0], /*old=*/0x20000080ul, /*newfd=*/r[1],
          /*new=*/0x200000c0ul, /*flags=*/0ul);
  memcpy((void*)0x20000140, "./file0\000", 8);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000140ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[2] = res;
  memcpy((void*)0x20000380,
         "./"
         "file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\000",
         257);
  syscall(__NR_mknodat, /*dirfd=*/r[2], /*file=*/0x20000380ul, /*mode=*/0ul,
          /*dev=*/0x700);
  memcpy((void*)0x20000040, ".\000", 2);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000040ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[3] = res;
  memcpy((void*)0x20000180, "./bus\000", 6);
  *(uint64_t*)0x20000300 = 0x82200;
  *(uint64_t*)0x20000308 = 0;
  *(uint64_t*)0x20000310 = 8;
  syscall(__NR_openat2, /*fd=*/r[0], /*file=*/0x20000180ul,
          /*how=*/0x20000300ul, /*size=*/0x18ul);
  memcpy((void*)0x200001c0, "./file0\000", 8);
  memcpy((void*)0x20000200, "./bus\000", 6);
  syscall(__NR_renameat2, /*oldfd=*/r[3], /*old=*/0x200001c0ul, /*newfd=*/r[3],
          /*new=*/0x20000200ul, /*flags=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  loop();
  return 0;
}