// https://syzkaller.appspot.com/bug?id=18ea53e309d786fa8aa06b5f5a7f6fbdc7ddf23f
// 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");
  } 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;
}

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;
    }
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$hfs arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 00} (length 0x4)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {13 13 77 c5 fc 35 d4 14 54 d5 d4 1d 29 ad 1a 60 29 59 81 46
  //      e6 be 16 6e 41 ad 0d bd 40 54 03 3c 9f 33 bb da 82 24 a2 f3 d7 72 e7
  //      63 6e 48 b3 3c bf 70 83 72 e8 f1 b9 93 3e c5 12 77 43 be 22 06 20 9e
  //      f0 2d f9 cb f2 f6 e8 80 d3 38 2f 00} (length 0x4e)
  //    }
  //    flags: mount_flags = 0x30008c0 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {71 75 69 65 74 2c 63 6f 64 65 70 61 67 65 3d 63
  //          70 38 36 35 2c 63 72 65 61 74 6f 72 3d f0 e0 07 ba 2c 64 69 72 5f
  //          75 6d 61 73 6b 3d 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
  //          30 30 30 30 30 30 35 2c 64 69 72 5f 75 6d 61 73 6b 3d 30 30 30 30
  //          30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 34 2c 70 61
  //          72 74 3d 30 78 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 36 2c
  //          00 72 5b 84 1f f1 8a 05 89 15 ec 69 99 a1 ce c1 e3 00 e2 6b 71 98
  //          52 09 f2 f9 73 5b 46 24 aa bf 64 6f 45 3a b2 7e cc fe 4a c6 4a ca
  //          a8 65 ce d0 46 36 1e ce 34 bb 1d c3 79 79 ab 84 47 db a3 bf 25 d7
  //          0f 92 6a 21 8a 4f ef 96 34 77 81 35 b1 72 3f b2 0c f8 79 3a 83 30
  //          b8 43 bc b5 b1 f1 4f 1c 7c 8e 21 cd 47 f1 5c 34 c1 a0 46 02 62 ed
  //          74 8b 8a 84 0f bf 57 40 f9 65 40 01 1f} (length 0xf9)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x11 (1 bytes)
  //    size: len = 0x2b6 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x2b6)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000001740, "hfs\000", 4);
  memcpy((void*)0x200000000100,
         "\023\023w\305\3745\324\024T\325\324\035)\255\032`)"
         "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$"
         "\242\363\327r\347cnH\263<\277p\203r\350\361\271\223>"
         "\305\022wC\276\"\006 \236\360-\371\313\362\366\350\200\3238/\000",
         78);
  memcpy(
      (void*)0x2000000004c0,
      "\x71\x75\x69\x65\x74\x2c\x63\x6f\x64\x65\x70\x61\x67\x65\x3d\x63\x70\x38"
      "\x36\x35\x2c\x63\x72\x65\x61\x74\x6f\x72\x3d\xf0\xe0\x07\xba\x2c\x64\x69"
      "\x72\x5f\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x35\x2c\x64\x69\x72\x5f"
      "\x75\x6d\x61\x73\x6b\x3d\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30"
      "\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x34\x2c\x70\x61\x72\x74\x3d\x30"
      "\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x36\x2c"
      "\x00\x72\x5b\x84\x1f\xf1\x8a\x05\x89\x15\xec\x69\x99\xa1\xce\xc1\xe3\x00"
      "\xe2\x6b\x71\x98\x52\x09\xf2\xf9\x73\x5b\x46\x24\xaa\xbf\x64\x6f\x45\x3a"
      "\xb2\x7e\xcc\xfe\x4a\xc6\x4a\xca\xa8\x65\xce\xd0\x46\x36\x1e\xce\x34\xbb"
      "\x1d\xc3\x79\x79\xab\x84\x47\xdb\xa3\xbf\x25\xd7\x0f\x92\x6a\x21\x8a\x4f"
      "\xef\x96\x34\x77\x81\x35\xb1\x72\x3f\xb2\x0c\xf8\x79\x3a\x83\x30\xb8\x43"
      "\xbc\xb5\xb1\xf1\x4f\x1c\x7c\x8e\x21\xcd\x47\xf1\x5c\x34\xc1\xa0\x46\x02"
      "\x62\xed\x74\x8b\x8a\x84\x0f\xbf\x57\x40\xf9\x65\x40\x01\x1f",
      249);
  memcpy(
      (void*)0x200000000200,
      "\x78\x9c\xec\xdd\x4f\x6b\x13\x41\x18\xc7\xf1\xdf\x6c\xd2\x36\xda\x52\xb7"
      "\xb6\x22\x78\xac\x16\xf4\x22\x5a\x2f\xe2\x25\x22\x79\x11\x9e\x44\x6d\x22"
      "\x14\x43\x45\xad\xf8\xe7\x54\xc5\x93\x88\xde\xbd\xfb\x16\x7c\x11\x5e\x14"
      "\xdf\x80\x9e\x3c\xf9\x02\xea\x69\x65\x66\x27\xd9\x24\xbb\xd9\x4d\x43\x93"
      "\x6d\xea\xf7\x03\x0d\x9b\xec\x3e\x3b\xcf\x64\xff\xcc\x3c\x81\xb2\x02\xf0"
      "\xdf\xba\xd5\xf8\xf9\xf9\xda\x6f\xfb\x67\xa4\x8a\x2a\xd2\xbb\x1b\x52\x20"
      "\xa9\x26\x55\x25\x9d\xd1\xd9\xda\xb3\x9d\xdd\xed\xdd\x76\xab\x99\xb7\xa3"
      "\x8a\x8b\xb0\x7f\x46\x71\xa4\x49\x6d\xb3\xb5\xd3\xca\x0a\xb5\x71\x2e\xc2"
      "\x0b\xed\xbb\xaa\x96\x7a\x3f\xc3\x64\x44\x51\x74\xf3\x57\xd9\x49\xa0\x74"
      "\xee\xea\xcf\x10\x48\x0b\xfe\xea\x74\xeb\x6b\x53\xcf\x2c\xdf\xeb\x31\xe3"
      "\xf6\x0e\x39\x8f\x59\x63\xf6\xb5\xaf\x17\x5a\x2e\x3b\x0f\x00\x40\xb9\xfc"
      "\xf8\x1f\xf8\x71\x7e\xc9\xcf\xdf\x83\x40\xda\xf0\xc3\xfe\x91\x1c\xff\xc7"
      "\xb5\x5f\x76\x02\x13\x17\xe5\xae\xed\x19\xff\x5d\x95\x15\x19\x7b\x7c\x4f"
      "\xb9\x55\x49\xbd\xe7\x4a\x38\xbb\x3e\xe8\x54\x89\xa3\xb4\x3c\x37\xf0\x7e"
      "\x5e\xf1\x99\xd5\x37\xc1\x34\x45\x55\xa5\xcb\x25\x38\xf1\x60\xbb\xdd\xba"
      "\xbc\xf5\xa8\xdd\x0c\xf4\x46\x75\xaf\x67\xb3\x35\xf7\xda\x8c\x4f\xdd\x8e"
      "\x82\x6c\xd7\x33\x6a\xd3\x1c\x23\xf4\xdd\x64\xcf\x28\x17\x5d\x1f\xe6\x6c"
      "\x1f\x36\xe3\xfc\x9f\x4b\xea\xcb\x7f\x75\xcc\x16\xc7\x66\xbe\x9a\xef\xe6"
      "\x8e\x09\xf5\x49\xcd\xee\xfc\xaf\x1a\x19\x7b\x98\xdc\x91\x0a\x07\x8e\x54"
      "\x9c\xff\x95\xe1\x7b\x74\xbd\x0c\xed\x56\xf2\xb7\x8d\x7a\xbd\x1e\xf4\x6d"
      "\xb2\xe2\x1a\x39\xe7\x5b\xf0\x0a\x7a\x59\xcb\xae\x48\xd4\x39\xa3\x56\xd4"
      "\xff\x03\x41\x58\x94\xa7\x8b\x3a\x3d\x10\x15\xf7\xee\x6a\x41\xd4\x6a\x66"
      "\xd4\x66\xe7\xdd\x90\xa8\xb5\xbe\x28\xdb\x9b\xee\xd9\x3c\xbc\xbd\x49\x33"
      "\x1f\xcc\x6d\xb3\xae\x3f\xfa\xa2\x46\xcf\xfc\x3f\xb0\xf9\x6d\x28\xf7\xca"
      "\x4c\xae\x1a\xb3\x11\x0f\x05\xee\x1b\x8f\xfb\x33\x9f\xdd\x5c\xd5\xed\x33"
      "\x4c\x8d\x1c\xe9\xcb\xa5\xfb\x2d\x2e\x0c\x4b\xfd\x6f\xfe\x3d\x0d\x07\xf0"
      "\x5e\xf7\x75\x5d\xcb\x4f\x5f\xbe\x7a\x58\x69\xb7\x5b\x4f\xec\xc2\xbd\x8c"
      "\x85\xc7\x4b\xdd\x4f\xe6\xde\x4a\x99\xdb\x94\xbc\xa0\xbd\xe4\x93\x05\x45"
      "\x4e\x6a\xe3\xce\xa0\x34\xcd\xc4\x2e\x1d\xea\x0e\xed\xfd\xa3\x70\x63\x7b"
      "\x95\x1d\x89\x83\x72\xac\x17\x1a\xdf\xa6\x7b\x22\x95\xb1\x50\xf2\xfd\x09"
      "\x53\x91\x1c\xf4\xb2\x33\x41\x49\xec\xbc\xcb\xc4\xf5\x5f\x52\xaf\x54\xe3"
      "\xc9\x9e\x7d\x09\x33\xe7\xe9\x23\xfe\x10\xe0\xf7\x18\xd9\x39\x76\xb7\x82"
      "\x4b\x62\xa3\x78\x46\x2e\xe9\xe4\x81\x2a\xb8\xc5\xe1\x15\x5c\xba\xe6\x4a"
      "\xd5\x8c\xae\xe6\x3a\x7f\x51\xba\x30\x7a\x8b\xa1\xcf\xf3\x98\x30\x0d\xfd"
      "\xd0\x5d\x7e\xff\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x98\x35\xd3\xf8\x77\x82\xb2\xfb\x08\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xac\xeb\x3e\xff\x57\x9d\xe7\xff\x6a"
      "\xb4\xe7\xff\x0e\x3e\x8a\xe5\x30\x9f\xff\xfb\x71\x47\x3c\xff\x17\x98\xbc"
      "\x7f\x01\x00\x00\xff\xff\x15\x97\x7c\xbe",
      694);
  syz_mount_image(
      /*fs=*/0x200000001740, /*dir=*/0x200000000100,
      /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_NODIRATIME|MS_MANDLOCK|MS_DIRSYNC*/
      0x30008c0, /*opts=*/0x2000000004c0, /*chdir=*/0x11, /*size=*/0x2b6,
      /*img=*/0x200000000200);
  //  open arguments: [
  //    file: nil
  //    flags: open_flags = 0x511082 (8 bytes)
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  //  returns fd
  syscall(__NR_open, /*file=*/0ul,
          /*flags=__O_TMPFILE|O_SYNC|O_EXCL|O_DIRECTORY|O_RDWR*/ 0x511082ul,
          /*mode=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x183341 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000080, "./file1\000", 8);
  syscall(
      __NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
      /*flags=O_TRUNC|O_SYNC|O_NOCTTY|O_CREAT|O_CLOEXEC|FASYNC|0x1*/ 0x183341,
      /*mode=*/0);
  //  truncate arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    len: intptr = 0x1001bfc (8 bytes)
  //  ]
  memcpy((void*)0x200000000040, "./file1\000", 8);
  syscall(__NR_truncate, /*file=*/0x200000000040ul, /*len=*/0x1001bfcul);
}
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;
}