// https://syzkaller.appspot.com/bug?id=f86606dfb403cc9435c0ed5f17e1d80c110cddef
// 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_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 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$hfsplus arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 70 6c 75 73 00} (length 0x8)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x3004c00 (8 bytes)
  //    opts: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYRES64: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRES64: ANYRES64 (resource)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {82 a5 ff 4d c2 99 0d} (length 0x7)
  //        }
  //        union ANYUNION {
  //          ANYBLOB: buffer: {b4 0f 16 6b 49 48 d1 7c 20 34 50 ad 72 25 a6 75
  //          05 bd 37 0b f2 32 1f 32} (length 0x18)
  //        }
  //        union ANYUNION {
  //          ANYRES16: ANYRES16 (resource)
  //        }
  //        union ANYUNION {
  //          ANYRESDEC: ANYRES64 (resource)
  //        }
  //      }
  //    }
  //    chdir: int8 = 0xff (1 bytes)
  //    size: len = 0x670 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x670)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000080, "hfsplus\000", 8);
  memcpy((void*)0x200000000100, "./file1\000", 8);
  *(uint64_t*)0x200000002200 = 0;
  *(uint64_t*)0x200000002208 = -1;
  memcpy((void*)0x200000002210, "\x82\xa5\xff\x4d\xc2\x99\x0d", 7);
  memcpy((void*)0x200000002217,
         "\xb4\x0f\x16\x6b\x49\x48\xd1\x7c\x20\x34\x50\xad\x72\x25\xa6\x75\x05"
         "\xbd\x37\x0b\xf2\x32\x1f\x32",
         24);
  *(uint16_t*)0x20000000222f = -1;
  sprintf((char*)0x200000002231, "%020llu", (long long)-1);
  memcpy(
      (void*)0x2000000024c0,
      "\x78\x9c\xec\xdd\xbb\x6f\x1c\xd7\xd9\x07\xe0\xdf\x2c\x97\x94\x56\x9f\x3f"
      "\x99\x96\x25\x5b\x0e\x0c\x48\xb0\x80\x24\x88\x10\x89\x14\x21\x27\x4c\x13"
      "\x25\x08\x02\x15\x46\x60\x38\x45\x6a\x42\xa2\x2c\x42\x2b\xd9\xa1\xe8\x80"
      "\x36\x82\x98\xce\xb5\x75\xa1\x3f\xc0\x29\xd8\xa5\x0a\x90\x5e\x80\xd3\xa4"
      "\x71\x3a\xb7\x2c\x0d\x04\x49\xe3\x26\x4c\xb5\xc1\xcc\xce\x2e\x97\x97\x15"
      "\x2f\xa2\x78\x71\x9e\x47\x98\x3d\x67\xe6\xcc\x9c\xf3\x9e\x77\x67\x76\x76"
      "\x97\x10\x36\xc0\xff\xac\x9b\x97\xd3\x7c\x9c\x22\x37\x2f\xbf\xb1\x58\xae"
      "\xaf\x2c\x4f\xb5\x57\x96\xa7\xee\xf7\xea\x49\x4e\x24\x69\x24\xcd\x6e\x91"
      "\xe2\xdf\x9d\x4e\xe7\xd3\xe4\x46\xba\x4b\x5e\x29\x37\xd6\xdd\x15\xc3\xc6"
      "\x79\x34\x37\xfd\xd6\xe7\x5f\xae\x7c\xd1\x5d\x6b\xd6\x4b\x8a\x4e\x67\x3f"
      "\x66\xb1\x54\x2f\xb9\x98\x64\xa4\x2e\xf7\xab\xbf\x5b\xdb\xf5\x77\x72\xbb"
      "\xee\x8a\x7e\x66\xca\x84\x5d\xea\x25\x0e\x0e\xdb\x68\x92\x4e\xe5\x9f\x8f"
      "\xba\x5b\x7e\xfe\xb7\xe7\xfa\x2d\x03\x5a\x5b\x1d\xbd\xed\x99\x0f\x1c\x03"
      "\x45\xf7\xbe\xb9\xc9\x78\x72\xaa\xbe\xd0\xcb\xf7\x01\xdd\xbb\x62\xf7\x8d"
      "\xc0\xb1\xb6\x74\xd8\x01\x00\x00\x00\xc0\x01\x78\x7e\x35\xab\x59\xcc\xe9"
      "\xc3\x8e\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x8e\x93\x22\x19\x69\xf6"
      "\xab\xd5\xef\xfb\x97\x65\x71\x31\x45\xef\xf7\xff\xc7\xea\x6d\xa9\xeb\x47"
      "\xcb\x85\xdd\xed\xfe\xf8\x59\xc5\x01\x00\x00\x00\x00\x00\x00\x00\x07\xe8"
      "\xc2\x6a\x56\xb3\x98\xd3\xbd\xf5\x4e\x51\xfd\xcd\xff\xb5\x6a\xe5\x6c\xf5"
      "\xf8\x7f\x79\x2f\x0f\x33\x9b\xf9\x5c\xc9\x62\x66\xb2\x90\x85\xcc\x67\x32"
      "\xc9\xf8\x40\x47\x63\x8b\x33\x0b\x0b\xf3\x93\x3b\x38\xf2\xda\x96\x47\x5e"
      "\xdb\x26\xd0\x13\x75\xd9\xda\x9f\x79\x03\x00\x00\x00\x00\x00\x00\xc0\x57"
      "\xcc\xaf\x73\x73\xed\xef\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x70\x14\x14\xc9\x48\xb7\xa8\x96\xb3\xbd\xfa\x78\x1a\xcd\x24\x27\x93\x8c"
      "\x95\xfb\x2d\x25\x7f\xef\xd5\x8f\xb3\xc7\x87\x1d\x00\x00\x00\x00\x1c\x80"
      "\xe7\x57\xb3\x9a\xc5\x9c\xee\xad\x77\x8a\xea\x33\xff\x4b\xd5\xe7\xfe\x93"
      "\x79\x2f\x0f\xb2\x90\xb9\x2c\xa4\x9d\xd9\xdc\xae\xbe\x0b\xe8\x7e\xea\x6f"
      "\xac\x2c\x4f\xb5\x57\x96\xa7\xee\x97\xcb\xe6\x7e\x7f\xf0\xaf\x5d\x85\x51"
      "\xf5\x98\xee\x77\x0f\x5b\x8f\x7c\xbe\xda\xa3\x95\x3b\x99\xab\xb6\x5c\xc9"
      "\xad\xbc\x93\x76\x6e\xa7\x51\x1d\x59\x3a\xdf\x8b\x67\xeb\xb8\x3e\x2a\x63"
      "\x2a\xbe\x5f\xdb\x61\x64\xb7\xeb\xb2\x9c\xf9\xc7\x75\xb9\xc9\x87\xbb\x9a"
      "\xec\x30\xbb\xfc\x32\x65\xbc\xca\xc8\x68\x3f\x23\x13\x75\x6c\x65\x36\x5e"
      "\x78\x72\x26\x76\xf9\xec\x6c\x1c\x69\x32\x8d\x7e\xb0\x67\x37\x8c\xb4\x61"
      "\x12\x7b\xca\xf9\xa9\xba\x2c\xe7\xf3\xfb\x61\x39\x1f\xd8\xe7\xe0\x6c\xcc"
      "\xc4\xb5\x81\xb3\xef\xa5\x27\xe7\x3c\xf9\xc6\x5f\xfe\xf4\xb3\xbb\xed\x07"
      "\xf7\xee\xde\x79\x78\xf9\x60\xc3\xde\xbb\xa5\xba\x1c\xa9\xcb\x4e\xf5\xd8"
      "\xda\x9c\x89\xa9\x81\x4c\xbc\xfc\x55\xcc\xc4\x50\x13\x55\x26\xce\xf5\xd7"
      "\x6f\xe6\xc7\xf9\x69\x2e\xe7\x62\xde\xcc\x7c\xe6\xf2\x8b\xcc\x64\x21\xb3"
      "\xb9\x98\x1f\x55\xb5\x99\xfa\x9c\x2d\x06\x2e\xf9\x21\x99\xba\xb1\x6e\xed"
      "\xcd\xed\x22\x19\xab\xcf\xd0\xee\x93\xb5\xbb\x98\x5e\xab\x8e\x3d\x9d\xb9"
      "\xfc\x24\xef\xe4\x76\x66\xf3\x7a\xf5\xef\x5a\x26\xf3\x9d\x5c\xcf\xf5\x4c"
      "\x0f\x3c\xc3\xe7\x76\xf0\x4a\xdb\x18\x72\xd5\x77\xfe\x7f\xcb\xe0\x2f\x7d"
      "\xb3\xae\xb4\x92\xfc\xa1\x2e\x77\x64\x64\xa7\x3b\xee\x55\x99\xd7\x17\x06"
      "\xf2\x3a\xf8\x9a\x3b\x5e\xb5\x0d\x6e\x59\xcb\xd2\x99\xfd\xbf\x1f\x35\xbf"
      "\x56\x57\xca\x31\x7e\x53\x97\x47\xc3\xc6\x4c\x4c\x0e\x64\xe2\xc5\x27\x67"
      "\xe2\x8f\xd5\xcb\xca\xc3\xf6\x83\x7b\xf3\x77\x67\xde\xdd\xd9\x70\x67\x3e"
      "\xae\x2b\xe5\x75\xf4\xbb\x6e\x79\x7a\x3f\xe7\xb3\x77\xe5\xf9\x72\xa6\x7c"
      "\xb2\xaa\xb5\xf5\x67\x47\xd9\xf6\xe2\x96\x6d\x93\x55\xdb\xd9\x7e\x5b\x63"
      "\x53\xdb\xb9\x7e\x5b\xf7\x4a\x5d\x1a\x7a\xa5\x8e\xd5\xef\xe1\x36\xf7\x74"
      "\xad\x6a\x7b\x79\xcb\xb6\xa9\xaa\xed\xfc\x40\xdb\x56\xef\xb7\x00\x38\xf2"
      "\x4e\x7d\xeb\xd4\x58\xeb\x1f\xad\xcf\x5a\x9f\xb4\x7e\xdb\xba\xdb\x7a\xe3"
      "\xe4\x0f\x4f\x7c\xf7\xc4\xab\x63\x19\xfd\xeb\xe8\xf7\x9a\x13\x23\x5f\x6f"
      "\xbc\x5a\xfc\x39\x9f\xe4\x57\x47\xe5\xc6\x09\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc7\xdb"
      "\xc3\xf7\x3f\xb8\x37\xd3\x6e\xcf\xce\x6f\xa8\x74\x3a\x9d\x0f\x87\x34\x1d"
      "\xe7\x4a\xef\x27\xa3\x0e\x70\xd0\x57\x9e\x4b\x9e\xa6\x9f\xd1\xec\x7d\xf4"
      "\xb1\x24\x47\x23\xf3\xff\xe9\x74\x3a\xf5\x96\xe2\x28\xc4\xf3\xe4\x4a\xa7"
      "\x74\x22\x9d\x67\x3e\x56\x33\xc9\x56\x4d\x17\x06\xb7\x7c\xf4\x54\xe7\xcf"
      "\x5e\x2b\x87\xfc\xc2\x04\x3c\x73\x57\x17\xee\xbf\x7b\xf5\xe1\xfb\x1f\x7c"
      "\x7b\xee\xfe\xcc\xdb\xb3\x6f\xcf\x3e\x98\xbe\x7e\x7d\x7a\x62\xfa\xfa\xeb"
      "\x53\x57\xef\xcc\xb5\x67\x27\xba\x8f\x87\x1d\x25\xf0\x2c\xac\xdd\xf4\x0f"
      "\x3b\x12\x00\x00\x00\x00\x00\x00\x00\x00\x00\x60\xa7\xf6\xe7\xff\x0c\xb4"
      "\x92\x0c\xdf\x67\xf8\xe8\x27\x0f\x72\xaa\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\x31\x75\xf3\x72"
      "\x9a\x8f\x53\x64\x72\xe2\xca\x44\xb9\xbe\xb2\x3c\xd5\x2e\x97\x5e\x7d\x6d"
      "\xcf\x66\x92\x46\x92\xe2\x97\x49\xf1\x69\x72\x23\xdd\x25\xe3\x03\xdd\x15"
      "\xfd\xda\x67\xeb\xc7\x79\x34\x37\xfd\xd6\xe7\x5f\xae\x7c\xb1\xd6\x57\xb3"
      "\xb7\x7f\x63\xdd\x71\xeb\x8c\xee\x70\x16\x4b\xf5\x92\x8b\x49\x46\xea\xf2"
      "\x29\xac\xeb\xef\xd6\x53\xf7\x57\xf4\x67\x58\x26\xec\x52\x2f\x71\x70\xd8"
      "\xfe\x1b\x00\x00\xff\xff\xa6\xd0\x06\xfa",
      1648);
  syz_mount_image(
      /*fs=*/0x200000000080, /*dir=*/0x200000000100,
      /*flags=MS_LAZYTIME|MS_REC|MS_STRICTATIME|MS_NODIRATIME|MS_NOATIME*/
      0x3004c00, /*opts=*/0x200000002200, /*chdir=*/-1, /*size=*/0x670,
      /*img=*/0x2000000024c0);
  //  chdir arguments: [
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //  ]
  memcpy((void*)0x200000000240, "./file0\000", 8);
  syscall(__NR_chdir, /*dir=*/0x200000000240ul);
  //  renameat2 arguments: [
  //    oldfd: fd_dir (resource)
  //    old: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    newfd: fd_dir (resource)
  //    new: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
  //    }
  //    flags: renameat2_flags = 0x0 (8 bytes)
  //  ]
  memcpy((void*)0x200000000000, "./file1\000", 8);
  memcpy((void*)0x2000000004c0, "./file0\000", 8);
  syscall(__NR_renameat2, /*oldfd=*/0xffffff9c, /*old=*/0x200000000000ul,
          /*newfd=*/0xffffff9c, /*new=*/0x2000000004c0ul, /*flags=*/0ul);
}
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;
}