// https://syzkaller.appspot.com/bug?id=f0d34594467ade2b45400cec1695433d001df373
// 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$hfsplus arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {68 66 73 70 6c 75 73 00} (length 0x8)
  //    }
  //    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 = 0x800002 (8 bytes)
  //    opts: ptr[in, fs_options[hfsplus_options]] {
  //      fs_options[hfsplus_options] {
  //        elems: array[fs_opt_elem[hfsplus_options]] {
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              force: buffer: {66 6f 72 63 65} (length 0x5)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nodecompose: buffer: {6e 6f 64 65 63 6f 6d 70 6f 73 65}
  //              (length 0xb)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              gid: fs_opt["gid", fmt[hex, gid]] {
  //                name: buffer: {67 69 64} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nobarrier: buffer: {6e 6f 62 61 72 72 69 65 72} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              decompose: buffer: {64 65 63 6f 6d 70 6f 73 65} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              gid: fs_opt["gid", fmt[hex, gid]] {
  //                name: buffer: {67 69 64} (length 0x3)
  //                eq: const = 0x3d (1 bytes)
  //                val: gid (resource)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[hfsplus_options] {
  //            elem: union hfsplus_options {
  //              nobarrier: buffer: {6e 6f 62 61 72 72 69 65 72} (length 0x9)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x3 (1 bytes)
  //    size: len = 0x6b3 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x6b3)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000000, "hfsplus\000", 8);
  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*)0x200000000f40, "force", 5);
  *(uint8_t*)0x200000000f45 = 0x2c;
  memcpy((void*)0x200000000f46, "nodecompose", 11);
  *(uint8_t*)0x200000000f51 = 0x2c;
  memcpy((void*)0x200000000f52, "decompose", 9);
  *(uint8_t*)0x200000000f5b = 0x2c;
  memcpy((void*)0x200000000f5c, "gid", 3);
  *(uint8_t*)0x200000000f5f = 0x3d;
  sprintf((char*)0x200000000f60, "0x%016llx", (long long)0xee01);
  *(uint8_t*)0x200000000f72 = 0x2c;
  memcpy((void*)0x200000000f73, "nobarrier", 9);
  *(uint8_t*)0x200000000f7c = 0x2c;
  memcpy((void*)0x200000000f7d, "decompose", 9);
  *(uint8_t*)0x200000000f86 = 0x2c;
  memcpy((void*)0x200000000f87, "gid", 3);
  *(uint8_t*)0x200000000f8a = 0x3d;
  sprintf((char*)0x200000000f8b, "0x%016llx", (long long)0);
  *(uint8_t*)0x200000000f9d = 0x2c;
  memcpy((void*)0x200000000f9e, "nobarrier", 9);
  *(uint8_t*)0x200000000fa7 = 0x2c;
  *(uint8_t*)0x200000000fa8 = 0;
  memcpy(
      (void*)0x200000000780,
      "\x78\x9c\xec\xdd\x4f\x6c\x1c\x57\x1d\x07\xf0\xef\x6c\x36\xeb\x6c\x90\x52"
      "\xb7\x4d\xd3\x80\x90\x62\x35\x52\x05\x8d\x48\xec\xac\x4a\x82\x84\xd4\x80"
      "\x10\xca\x21\x42\x11\x5c\x7a\xb5\x12\xa7\xb1\xe2\xa4\x95\xe3\xa2\xb4\x42"
      "\x64\x03\x14\x24\x4e\x9c\x50\x0f\x1c\x8a\x50\x38\xf4\x84\x10\x42\x2a\x27"
      "\x44\x39\x23\x21\x71\xe1\x94\x7b\x24\x6e\x1c\x72\x00\x8c\xe6\xcf\xda\x6b"
      "\x7b\xe3\xd8\x89\xe3\x75\xdb\xcf\x47\x9a\x9d\x37\xfb\xde\xbc\xf7\x9b\x5f"
      "\xe6\xcf\xee\x6c\xac\x09\xf0\x99\x75\xfe\xf5\xec\xef\xa7\xc8\xf9\x13\x17"
      "\x6e\x95\xcb\xf7\xee\xf6\x16\xee\xdd\xed\x5d\x1f\x94\x93\x4c\x24\x69\x25"
      "\xed\x7a\x96\xa2\x9b\x14\x1f\x27\xe7\x52\x4f\xf9\x7c\xf9\x66\xd3\x5d\xf1"
      "\xb0\x71\x5e\xbd\xff\x51\xd1\x7e\xff\xc3\x5e\xbd\xd4\x6e\xa6\xaa\x7d\x6b"
      "\xb3\xf5\x36\x18\xd9\xb2\x9f\x1c\x58\x59\xd8\x97\x64\xaa\x2e\xfe\x67\x0b"
      "\x1d\xb6\x46\xf7\x57\x4d\x55\x3f\x97\x56\xfb\x7b\x4c\xc5\x4a\xdc\x65\xc2"
      "\x8e\x0f\x12\x07\xe3\xb6\xbc\x41\x7f\xb5\x72\xd4\xa1\xb1\xd6\xd6\x8f\x5b"
      "\x60\xcf\xba\x5d\x5f\x37\x37\x98\x4c\x0e\xa6\xbe\xba\x96\x9f\x03\xd2\x9c"
      "\x1d\x1e\x7d\x66\x18\xbf\x4d\xcf\x4d\xfd\xdd\x8b\x03\x00\x00\x00\x9e\x96"
      "\x91\xdf\xe5\x87\x3d\xf3\x20\x0f\x72\x2b\x87\x76\x27\x1c\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\xf8\x74\x28\xea\x67\x06\x16\xcd\xd4\x1a\x94\xa7\x52"
      "\x0c\x9e\xff\xdf\x19\x7a\xa6\x7e\x67\xcc\xe1\x3e\xa1\xf7\xae\x54\xb3\xef"
      "\x3e\x33\xee\x40\x00\x00\x00\x00\x00\x00\x00\xe0\x89\x1c\x7b\x90\x07\xb9"
      "\x95\x43\x83\xe5\xe5\xa2\xfa\xcd\xff\xa5\x6a\xe1\x70\xf5\xfa\xb9\xbc\x9d"
      "\x9b\x99\xcb\x62\x4e\xe6\x56\x66\xb3\x94\xa5\x2c\x66\x26\xc9\xe4\x50\x47"
      "\x9d\x5b\xb3\x4b\x4b\x8b\x33\x1b\xd7\xfc\x65\xca\x35\x97\x97\x97\x6f\x37"
      "\x6b\x9e\x1e\xb9\xe6\xe9\xb5\x71\xf5\xd7\x07\x3a\xea\x7f\x1a\x6c\x68\x04"
      "\x00\x00\x00\x00\x00\x00\x00\x9f\x59\x3f\xca\xf9\xd5\xdf\xff\x01\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x60\x2f\x28\x92\x7d\xf5\xac\x9a\x0e\x0f"
      "\xca\x93\x69\xb5\x93\x1c\x48\xd2\x29\xa6\x56\x9a\x77\xc6\x1a\xec\x0e\xf8"
      "\xf3\xb8\x03\x00\x00\x00\x80\xa7\xaf\xdb\xcc\x0f\x15\xff\xab\x0b\xcb\x45"
      "\xf5\x9d\xff\x48\xf5\xbd\xff\x40\xde\xce\x8d\x2c\x65\x3e\x4b\x59\xc8\x5c"
      "\x2e\x57\xf7\x02\xea\x6f\xfd\xad\xbf\xf7\x7b\x0b\xf7\xee\xf6\xae\x97\xd3"
      "\xc6\x8e\xbf\xf1\xaf\x6d\xc5\x51\xf5\x98\xfa\xde\xc3\xe8\x91\xa7\xab\x16"
      "\x2f\xac\xac\x71\x3e\xdf\xce\xf7\x72\x22\x53\xb9\x98\xc5\xcc\xe7\xfb\x99"
      "\xcd\x52\xe6\x32\x95\x6f\x55\xa5\xd9\x14\x99\x6c\xee\x5e\x4c\xde\xbb\xdb"
      "\xcd\x20\xd6\x8d\xf1\x9e\x5b\xb3\x74\x71\x7d\x6c\xc7\x86\xca\x65\x7c\x47"
      "\xab\x48\xba\xb9\x92\xf9\x2a\xb6\x93\xb9\xd4\x19\x84\xde\x6a\xda\x1d\x1d"
      "\x1a\xed\x8f\x9d\x64\xdd\x88\x77\xca\xec\x14\xaf\x35\xb6\x98\xa3\xcb\xcd"
      "\xbc\xdc\xa2\x5f\x34\xf3\xbd\x61\xb2\xda\xf2\xfd\x2b\x19\x99\x6e\x72\x5f"
      "\x66\xe3\xd9\xe1\xbc\x6f\xcc\xfd\x36\xf7\x93\xf5\x23\xcd\xa4\xb5\x72\x0f"
      "\xea\xf0\xea\x28\xe5\xe2\xfa\x91\x1e\x2b\xe7\x07\x9b\x79\x99\xeb\x9f\x3e"
      "\xdd\x9c\x6f\xf3\x56\xda\xda\x4c\xf4\x7f\x5e\x2e\x0d\xf6\xbe\x23\x9b\xe7"
      "\x3c\xf9\xf2\x3f\xfe\x72\xf1\x6a\xeb\xc6\xb5\xab\x57\x6e\x9e\xd8\x3b\xbb"
      "\xd1\x63\x5a\xbf\x4f\xf4\x86\x32\xf1\xe2\x96\x32\xb1\x50\x66\xa2\xff\x04"
      "\x99\x38\xf0\x24\xf1\xef\x9c\x4e\x93\x8d\xfa\x2c\xba\xbd\xb3\xe5\x4b\xd5"
      "\xba\x87\x32\x9f\xef\xe4\xcd\x5c\xce\x5c\xce\x64\x3a\x33\x39\x9b\xe9\x7c"
      "\x2d\xa7\xd3\xcb\xe9\xa1\xbc\xbe\xb0\x79\x5e\xab\x63\xad\xb5\xbd\x63\xed"
      "\xf8\x97\x9a\x42\x79\x4d\xfa\xd9\xd0\xb5\x69\xd7\x4c\x3c\xac\xa2\xcc\xeb"
      "\xb3\x43\x79\x1d\x3e\xd3\x4d\x56\x75\xc3\xef\xac\x66\xe9\xb9\x2d\x64\xa9"
      "\xe8\x64\x74\x96\xfe\x39\x32\x94\xf6\x17\x9a\x42\x39\xc6\x8f\x87\xae\x38"
      "\xe3\xb7\x3e\x13\x33\x43\x99\x78\x7e\xf3\x4c\xfc\xfa\xbf\xcb\x49\x6e\x2e"
      "\xdc\xb8\xb6\x78\x75\xf6\xad\x2d\x8e\xf7\x72\x33\x2f\x0f\xdb\xf7\xd6\x9e"
      "\x9b\x7f\xb3\x23\x1b\xb4\x7d\xcd\xe6\x96\xfb\xcb\x73\xe5\x3f\x56\xea\xcb"
      "\xc6\xf0\xde\x51\xd6\x3d\x3f\xa8\x5b\x97\xaf\x4e\xf3\x8b\x4b\xbb\xe9\x6c"
      "\x4d\x5d\x27\xd5\xf1\x5c\xd7\x3d\xea\x48\x2d\x7b\x3a\x72\x67\x54\x4f\x75"
      "\xdd\x8b\x23\x47\xe9\x55\x75\x47\x87\xea\xd6\x7c\xca\xc9\x9b\x59\x58\xf9"
      "\x14\xd2\xd8\xf5\x83\x14\x80\x2d\x38\xf8\xca\xc1\x4e\xf7\x7e\xf7\x6f\xdd"
      "\x0f\xba\x3f\xe9\x5e\xed\x5e\x38\xf0\xcd\x89\xb3\x13\x5f\xec\x64\xff\x5f"
      "\xdb\x7f\xda\xf7\xbb\xd6\x6f\x5b\x5f\x2f\x5e\xc9\x07\xf9\x61\x0e\x8d\x3b"
      "\x52\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xf8\x34\xb8\xf9\xce\xbb\xd7\x66\x17\x16\xe6\x16"
      "\xf7\x60\x21\xad\x1d\xee\xf0\xce\xc8\xaa\x41\x2a\xea\x77\x3a\x23\xda\x1c"
      "\xcb\x1e\xc8\xc6\x27\xa3\x30\xb1\xd9\x1e\xf5\xfb\xd4\x8f\x6b\x7a\xc8\xea"
      "\x9d\x71\xc4\xdc\xcd\x43\xe3\xd9\xdd\x42\xda\xbb\x30\xd6\x44\x46\x54\x5d"
      "\x58\x79\xa7\x9b\xb4\x56\xe2\x49\x72\x6d\x8f\x3c\xe0\x0e\x78\x1a\x4e\x2d"
      "\x5d\x7f\xeb\xd4\xcd\x77\xde\xfd\xca\xfc\xf5\xd9\x37\xe6\xde\x98\xbb\x71"
      "\xfa\xec\x99\xd7\xce\xf4\xbe\x3a\x73\xfb\xd4\x95\xf9\x85\xb9\xe9\xfa\xb5"
      "\x69\xdc\x1e\x73\xb0\xc0\x8e\x5a\xfd\x18\x30\xee\x48\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x80\xad\xda\x8d\x3f\x6f\x18\x31\x6c\xd1\x1f\xc3\xb6\x02"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x9f\x4c\xe7\x5f\xcf\xfe\x7e\x8a\xcc\x4c\x9f\x9c\x2e\x97\xef"
      "\xdd\xed\x2d\x94\xd3\xa0\xbc\xda\xb2\x9d\xa4\x95\xa4\xf8\x41\x52\x7c\x9c"
      "\x9c\x4b\x3d\x65\x72\xa8\xbb\xe2\x61\xe3\xbc\x7a\xff\xa3\x5f\xbd\xfc\xfe"
      "\x87\xbd\xd5\xbe\xda\x83\xf6\xad\x75\xeb\xfd\xe1\xdf\xcb\xcb\xdb\xdc\x8a"
      "\x7e\x33\x65\x2a\xc9\xbe\x66\xfe\x68\x13\x5b\xea\xef\xd2\x50\x7f\xfd\x6d"
      "\x06\x56\x2b\x56\xb6\xb0\x4c\xd8\xf1\x41\xe2\x60\xdc\xfe\x1f\x00\x00\xff"
      "\xff\xef\xc7\x05\x87",
      1715);
  syz_mount_image(/*fs=*/0x200000000000, /*dir=*/0x200000000100,
                  /*flags=MS_I_VERSION|MS_NOSUID*/ 0x800002,
                  /*opts=*/0x200000000f40, /*chdir=*/3, /*size=*/0x6b3,
                  /*img=*/0x200000000780);
  //  open arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    flags: open_flags = 0x169242 (8 bytes)
  //    mode: open_mode = 0x10 (8 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000080, "./bus\000", 6);
  syscall(__NR_open, /*file=*/0x200000000080ul,
          /*flags=O_TRUNC|O_SYNC|O_NOFOLLOW|O_NOATIME|O_LARGEFILE|O_CREAT|0x2*/
          0x169242ul, /*mode=S_IWGRP*/ 0x10ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: open_flags = 0x42 (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_CREAT|O_RDWR*/ 0x42, /*mode=*/0);
  //  rename arguments: [
  //    old: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    new: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //  ]
  memcpy((void*)0x200000000440, "./bus\000", 6);
  memcpy((void*)0x2000000003c0, "./file1\000", 8);
  syscall(__NR_rename, /*old=*/0x200000000440ul, /*new=*/0x2000000003c0ul);
  //  rename arguments: [
  //    old: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    new: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //  ]
  memcpy((void*)0x200000000440, "./bus\000", 6);
  memcpy((void*)0x2000000003c0, "./file1\000", 8);
  syscall(__NR_rename, /*old=*/0x200000000440ul, /*new=*/0x2000000003c0ul);
}
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;
}