// https://syzkaller.appspot.com/bug?id=bf3ad150355f4910301875ebf126f262aef834fb
// 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: {6d 6e 74 00} (length 0x4)
  //    }
  //    flags: mount_flags = 0x0 (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 69
  //          73 6f 38 38 35 39 2d 31 35 2c 70 61 72 74 3d 30 78 30 30 30 30 30
  //          30 30 00 00 00 00 00 00 00 00 66 2c 00 a2 00 00 00 07 00 00 00 00
  //          ed e9 de bf 53 0c 3c c4 d0 4b 54 89 19 ac a0 c2 93 7d 4d a1 fc 31
  //          dc 42 fc 2e 3e} (length 0x57)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {23 34 11 29 bf b4 fc c3 88 a8 0c 49 b4 f4 d9 62
  //          54 cb 93 56 75 97 76 b0 3b 58 10 50 24 0d 2d 9a 5c f3 44 0e 76 c8
  //          86 f1 e5 c8 60 65 6a 36 48 10 12 23 fc 28 8f c5 27 4f 0e 60 9c fe
  //          d0 fc 73 8d 84 eb 54 47 91 dd 1c b9 59 42 1d b9 fb cb 63 4d f8 76
  //          aa 21 33 fd 62 e2 45 fb 6b 1e ad 07 ca 04 77 2d 78 56 4a f8 f4 20
  //          15 e5 be 55 7a b3 bd 60 82 47 68 69 10 05 cb d3 d2 95 40 26 93 d9
  //          34 22 65 95 de eb a1 ff 74 8b 7d de 9c 61 77 49 aa 38 09 6e f6 67
  //          70 0a 6b 36 68 cb 72 96 b0 24 fb cf 9f 74 e5 0b f0 f8 34 15 9f 51
  //          73 7b aa c1 84 f9 4d d1 3a 97 93 b7 69 46 20 8f 29 06 37 d8 de f9
  //          4e 5f 56 f1 18 1d a3 ee d5 00 44 0f} (length 0xcc)
  //        }
  //        union ANYUNION {
  //          ANYRES32: ANYRES32 (resource)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {45 00 a9 c2 fb b2 3c 14 93 5e 1d cc 6d 11 c2 4c
  //          a3 ff 81 cc c7 d4 56 f8 65 b1 5c 0d b9 a1 85 67 9f 26 6e 7b 27 61
  //          a1 e9 ff 25 cf d2 f5 bd 23 52 8b 43 27 ab 23 fd 41 e3 c1 e4 96 e2
  //          cf 4c b0 d2 36 34 cb 20 4c 27 f5 bb b3 75 10 31 04 b0 1d ca 3f 21
  //          2f a6 ac 51 c2 88 7d a2 47 61 46 9a c2 a3 3f be e7 2d 22 37 65 74
  //          b7 81 53 7d 01 05 8b e2 1d 7c 92 c4 94 84 ac 09 fd a3 57 17 1e fa
  //          3a 61 c7 f9 fa 31 1e ac 1e 39 3b 07 a4 d9 22 04 54 ee ba c1 4a e3
  //          a3 19 d0 06 75 51 33 5d b1 44 33 26 26 03 2a 9d 9f 11 d4 55 bc 5f
  //          40 8b 6f a6 4f 16 f9 24 42 74 ab fb 3c 4e 4b 0f 9d d1 f0 39 ab 08
  //          56 84 a7 11 65 91 7b 54 be 56 f9 73 48 df f0 62 20 d2 e6 2c 4d 91
  //          58 41 c0 cc da 63 c1 04 8e 10 fb 6c 6c bd f9 96 72 bb 90 bf 3d 1c
  //          5e 33 3e 43 bb da} (length 0xf2)
  //        }
  //        union ANYUNION {
  //          ANYRES16: ANYRES16 (resource)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0x11 (1 bytes)
  //    size: len = 0x2dd (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x2dd)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000180, "hfs\000", 4);
  memcpy((void*)0x200000000100, "mnt\000", 4);
  memcpy(
      (void*)0x200000001e40,
      "\x71\x75\x69\x65\x74\x2c\x63\x6f\x64\x65\x70\x61\x67\x65\x3d\x69\x73\x6f"
      "\x38\x38\x35\x39\x2d\x31\x35\x2c\x70\x61\x72\x74\x3d\x30\x78\x30\x30\x30"
      "\x30\x30\x30\x30\x00\x00\x00\x00\x00\x00\x00\x00\x66\x2c\x00\xa2\x00\x00"
      "\x00\x07\x00\x00\x00\x00\xed\xe9\xde\xbf\x53\x0c\x3c\xc4\xd0\x4b\x54\x89"
      "\x19\xac\xa0\xc2\x93\x7d\x4d\xa1\xfc\x31\xdc\x42\xfc\x2e\x3e",
      87);
  memcpy((void*)0x200000001e97,
         "\x23\x34\x11\x29\xbf\xb4\xfc\xc3\x88\xa8\x0c\x49\xb4\xf4\xd9\x62\x54"
         "\xcb\x93\x56\x75\x97\x76\xb0\x3b\x58\x10\x50\x24\x0d\x2d\x9a\x5c\xf3"
         "\x44\x0e\x76\xc8\x86\xf1\xe5\xc8\x60\x65\x6a\x36\x48\x10\x12\x23\xfc"
         "\x28\x8f\xc5\x27\x4f\x0e\x60\x9c\xfe\xd0\xfc\x73\x8d\x84\xeb\x54\x47"
         "\x91\xdd\x1c\xb9\x59\x42\x1d\xb9\xfb\xcb\x63\x4d\xf8\x76\xaa\x21\x33"
         "\xfd\x62\xe2\x45\xfb\x6b\x1e\xad\x07\xca\x04\x77\x2d\x78\x56\x4a\xf8"
         "\xf4\x20\x15\xe5\xbe\x55\x7a\xb3\xbd\x60\x82\x47\x68\x69\x10\x05\xcb"
         "\xd3\xd2\x95\x40\x26\x93\xd9\x34\x22\x65\x95\xde\xeb\xa1\xff\x74\x8b"
         "\x7d\xde\x9c\x61\x77\x49\xaa\x38\x09\x6e\xf6\x67\x70\x0a\x6b\x36\x68"
         "\xcb\x72\x96\xb0\x24\xfb\xcf\x9f\x74\xe5\x0b\xf0\xf8\x34\x15\x9f\x51"
         "\x73\x7b\xaa\xc1\x84\xf9\x4d\xd1\x3a\x97\x93\xb7\x69\x46\x20\x8f\x29"
         "\x06\x37\xd8\xde\xf9\x4e\x5f\x56\xf1\x18\x1d\xa3\xee\xd5\x00\x44\x0f",
         204);
  *(uint32_t*)0x200000001f63 = 0;
  memcpy(
      (void*)0x200000001f67,
      "\x45\x00\xa9\xc2\xfb\xb2\x3c\x14\x93\x5e\x1d\xcc\x6d\x11\xc2\x4c\xa3\xff"
      "\x81\xcc\xc7\xd4\x56\xf8\x65\xb1\x5c\x0d\xb9\xa1\x85\x67\x9f\x26\x6e\x7b"
      "\x27\x61\xa1\xe9\xff\x25\xcf\xd2\xf5\xbd\x23\x52\x8b\x43\x27\xab\x23\xfd"
      "\x41\xe3\xc1\xe4\x96\xe2\xcf\x4c\xb0\xd2\x36\x34\xcb\x20\x4c\x27\xf5\xbb"
      "\xb3\x75\x10\x31\x04\xb0\x1d\xca\x3f\x21\x2f\xa6\xac\x51\xc2\x88\x7d\xa2"
      "\x47\x61\x46\x9a\xc2\xa3\x3f\xbe\xe7\x2d\x22\x37\x65\x74\xb7\x81\x53\x7d"
      "\x01\x05\x8b\xe2\x1d\x7c\x92\xc4\x94\x84\xac\x09\xfd\xa3\x57\x17\x1e\xfa"
      "\x3a\x61\xc7\xf9\xfa\x31\x1e\xac\x1e\x39\x3b\x07\xa4\xd9\x22\x04\x54\xee"
      "\xba\xc1\x4a\xe3\xa3\x19\xd0\x06\x75\x51\x33\x5d\xb1\x44\x33\x26\x26\x03"
      "\x2a\x9d\x9f\x11\xd4\x55\xbc\x5f\x40\x8b\x6f\xa6\x4f\x16\xf9\x24\x42\x74"
      "\xab\xfb\x3c\x4e\x4b\x0f\x9d\xd1\xf0\x39\xab\x08\x56\x84\xa7\x11\x65\x91"
      "\x7b\x54\xbe\x56\xf9\x73\x48\xdf\xf0\x62\x20\xd2\xe6\x2c\x4d\x91\x58\x41"
      "\xc0\xcc\xda\x63\xc1\x04\x8e\x10\xfb\x6c\x6c\xbd\xf9\x96\x72\xbb\x90\xbf"
      "\x3d\x1c\x5e\x33\x3e\x43\xbb\xda",
      242);
  *(uint16_t*)0x200000002059 = -1;
  memcpy(
      (void*)0x200000001b40,
      "\x78\x9c\xec\xdd\xcb\x6a\x14\x4b\x1c\xc7\xf1\x5f\xf5\x4c\x92\xc9\xc9\x90"
      "\xd3\xb9\x1c\x0e\x9c\x65\x8e\x01\xdd\x48\x8c\x1b\x71\x33\x41\xe6\x21\xc4"
      "\x85\xa8\x99\x11\x82\x43\x44\x13\x41\xdd\x18\xc5\x85\x88\xe8\xde\xbd\xaf"
      "\xe0\x2b\x08\x6e\x14\x5f\x40\x57\xae\x7c\x80\x11\x84\x96\xaa\xae\xb9\xa6"
      "\xa7\x3b\x19\x32\xdd\x19\xfc\x7e\xc0\xd0\xd3\x5d\xd5\xf5\xaf\xf4\xa5\xea"
      "\x3f\x60\x4a\x00\xfe\x58\x57\xea\x5f\xdf\x5d\xfc\x6e\xff\x19\xa9\xa4\x92"
      "\xf4\xf2\xb2\x14\x48\x7a\x21\x95\x25\xfd\xa3\x7f\x2b\x0f\x76\xf7\x77\xf6"
      "\x5b\xcd\x46\xca\x79\xda\x91\xa3\x8a\x64\x14\xd7\x34\x87\x0a\x6d\xef\x36"
      "\x93\xea\x56\xe4\x6b\x78\xa1\xfd\x54\x56\xb5\x7f\x1f\x26\x23\x8a\xa2\xad"
      "\x6f\x92\xf6\x8a\x0e\x04\x85\x72\x4f\x7f\x82\x40\x9a\xf3\x4f\xa7\x3b\x5e"
      "\xc9\x3d\xb2\x74\x4f\xc7\xac\x77\x70\xc2\x71\x4c\x1b\xd3\x56\x5b\x0f\xb5"
      "\x58\x74\x1c\x00\x80\x62\xf9\xf1\x3f\xf0\xe3\x7c\xd5\xcf\xdf\x83\x40\x5a"
      "\xf7\xc3\xfe\xa9\x1c\xff\xc7\xd5\x2e\x3a\x80\x89\x8b\x52\x8f\xf6\x8d\xff"
      "\x2e\xcb\x8a\x8c\xbd\xbe\x7f\xbb\x43\xbd\x7c\xcf\xa5\x70\xf6\x78\xd0\xc9"
      "\x12\x8f\xd2\xf2\xcc\xd0\xe7\x59\xc5\x77\xd6\xc0\x04\xd3\x64\x65\x95\x2e"
      "\x96\x60\xfe\xf6\x4e\xab\x79\x7e\xfb\x6e\xab\x11\xe8\x99\x6a\x5e\x5f\xb1"
      "\x55\xf7\xb3\x11\xdf\xba\x1d\x19\xd1\xae\x25\xe4\xa6\x29\x8e\xd0\x77\x93"
      "\x3c\xa3\x5c\x70\x7d\x98\xb1\x7d\xd8\x1c\x11\xff\xca\x98\x2d\x8e\xcd\x7c"
      "\x34\x9f\xcd\x75\x13\xea\xad\x1a\xdd\xf9\x5f\x39\x32\xf6\x32\xb9\x2b\x15"
      "\x0e\x5d\xa9\x38\xfe\x8d\xd1\x67\x74\xbd\x0c\x6d\x29\xf9\xd7\x46\xad\x56"
      "\x0b\x06\x8a\x2c\xb9\x46\xfe\xf3\x2d\x78\x19\xbd\xac\x24\x67\x24\xea\xdc"
      "\x51\x4b\x1a\xfc\x82\x20\xcc\x8a\xd3\xd5\x5a\x1e\xaa\x15\xf7\xee\x42\x46"
      "\xad\x95\xb8\xd6\xd6\xfc\x40\xad\xcd\xce\xa7\x11\xb5\x56\x07\xda\xb2\xbd"
      "\xe9\xde\xcd\xa3\xdb\x9b\x34\xf3\xda\x5c\x35\x6b\xfa\xa1\xf7\xaa\xf7\xcd"
      "\xff\x03\x1b\xdf\xba\x52\x9f\xcc\xde\x53\x63\xd6\xe3\xa1\xc0\xfd\xc6\xe3"
      "\xfe\xcc\x26\x37\x57\x76\xe7\x0c\x0f\x8d\x1c\x07\xba\x56\x1d\xdc\xd3\xfd"
      "\x2d\xce\x8d\x0a\xfd\x67\xfa\x3b\x0d\x43\x9e\xa4\x1c\x7b\xa5\x5b\xba\xa4"
      "\xc5\xbd\x47\x8f\xef\x94\x5a\xad\xe6\x7d\xbb\x71\x33\x61\xe3\x5e\xb5\xbb"
      "\x67\xe6\xb9\x94\x58\xa6\x80\x8d\x40\xbd\x3d\x3a\xe8\x1d\x9a\x53\xfc\x45"
      "\xe4\xa1\x5a\x9d\x41\x29\xcf\x50\xcf\x9d\xe8\x09\xed\xfb\x23\xb3\xb0\x7d"
      "\xca\x72\xe9\xe0\xa9\xb9\x13\x8a\xd8\xa8\x7f\x3a\xee\x8d\x34\x7b\xac\x26"
      "\xec\x1b\xb0\xe8\x9e\xe6\xf4\x8e\x42\xa1\x7a\x17\x3d\xb3\xe8\x87\x5c\x02"
      "\x42\xde\xdc\xbc\x2b\xce\xff\xfa\xf2\x95\x0d\x37\xd9\xb3\x3f\xc2\x94\x79"
      "\x7a\xe6\x84\xcc\x9f\x31\xb2\x73\xec\x6e\x06\x54\x19\xa8\xbf\xec\xb6\xfe"
      "\x3a\x56\x06\xb7\x30\x3a\x83\x3b\x6a\xce\xf5\xff\x59\xe9\x4c\x77\xd7\xaf"
      "\x28\xa3\xc5\xd0\xc7\x39\x1d\xa2\xb4\xa9\x9f\x65\xea\xfa\xa2\x1b\x7c\xff"
      "\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x30\x6d\xf2"
      "\xf8\xef\x04\x45\xf7\x11\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x80\x69\xd7\x5d\xff\x57\x9d\xf5\x7f\xe5\xd7\xff\xad\xa4"
      "\xaf\xff\x3b\xfc\x97\xbf\x4b\xf1\x0a\x2f\x27\xb2\xfe\xef\x9b\x5d\xb1\xfe"
      "\x2f\x30\x79\xbf\x03\x00\x00\xff\xff\x0c\xf0\x88\x97",
      733);
  syz_mount_image(/*fs=*/0x200000000180, /*dir=*/0x200000000100, /*flags=*/0,
                  /*opts=*/0x200000001e40, /*chdir=*/0x11, /*size=*/0x2dd,
                  /*img=*/0x200000001b40);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x101042 (4 bytes)
  //    mode: open_mode = 0x155 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000280, "./file1\000", 8);
  syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000280ul,
          /*flags=O_SYNC|O_CREAT|O_RDWR*/ 0x101042,
          /*mode=S_IXOTH|S_IROTH|S_IWGRP|S_IXUSR|S_IRUSR*/ 0x155);
  //  truncate arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    len: intptr = 0x2fffffd (8 bytes)
  //  ]
  memcpy((void*)0x200000000940, "./file1\000", 8);
  syscall(__NR_truncate, /*file=*/0x200000000940ul, /*len=*/0x2fffffdul);
}
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;
}