// https://syzkaller.appspot.com/bug?id=537bba34f7a7a6e57fb969990f5d9868fd4e9714
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <setjmp.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/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

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");
  }
  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 setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

void loop(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x20000080, "ext4\000", 5);
  memcpy((void*)0x20000140, "./file1\000", 8);
  memcpy((void*)0x20000280, "errors=remount-ro", 17);
  *(uint8_t*)0x20000291 = 0x2c;
  memcpy((void*)0x20000292, "nodiscard", 9);
  *(uint8_t*)0x2000029b = 0x2c;
  memcpy((void*)0x2000029c, "noquota", 7);
  *(uint8_t*)0x200002a3 = 0x2c;
  memcpy((void*)0x200002a4, "init_itable", 11);
  *(uint8_t*)0x200002af = 0x2c;
  memcpy((void*)0x200002b0, "stripe", 6);
  *(uint8_t*)0x200002b6 = 0x3d;
  sprintf((char*)0x200002b7, "0x%016llx", (long long)0x79);
  *(uint8_t*)0x200002c9 = 0x2c;
  memcpy((void*)0x200002ca, "resgid", 6);
  *(uint8_t*)0x200002d0 = 0x3d;
  sprintf((char*)0x200002d1, "0x%016llx", (long long)0);
  *(uint8_t*)0x200002e3 = 0x2c;
  memcpy((void*)0x200002e4, "sysvgroups", 10);
  *(uint8_t*)0x200002ee = 0x2c;
  memcpy((void*)0x200002ef, "delalloc", 8);
  *(uint8_t*)0x200002f7 = 0x2c;
  memcpy((void*)0x200002f8, "errors=continue", 15);
  *(uint8_t*)0x20000307 = 0x2c;
  *(uint8_t*)0x20000308 = 0;
  memcpy(
      (void*)0x20000880,
      "\x78\x9c\xec\xdd\xcf\x6b\x1c\x6d\x1d\x00\xf0\xef\x4c\xb2\x6f\x7f\xe5\x35"
      "\xa9\x7a\xa8\x05\xdb\x62\x2b\x69\xd1\xee\x26\x8d\x6d\x83\x87\x5a\x41\xec"
      "\xa9\x60\xad\xf7\x1a\x93\x4d\x08\xd9\x64\x43\x76\xd3\x36\xa1\x48\x8a\x77"
      "\x05\x11\x15\x3c\x79\xf2\x22\xf8\x07\x08\xd2\x3f\x41\x84\x82\xde\xa5\x8a"
      "\x22\xda\xea\xc1\x83\xba\xb2\xb3\xb3\xb5\x8d\xbb\x4d\xa0\xdb\x9d\xbe\xc9"
      "\xe7\x03\xd3\x79\x66\x9e\xdd\xfd\x7e\x9f\x86\x9d\x99\xe7\x99\x87\x9d\x00"
      "\x0e\xad\x73\x11\x71\x33\x22\x46\x22\xe2\x52\x44\x8c\xe7\xfb\xd3\x7c\xb9"
      "\xd5\xae\xbf\xd3\x79\xdd\x8b\xe7\x8f\xe6\xdb\x4b\x12\xad\xd6\xdd\xbf\x26"
      "\x91\xe4\xfb\xba\x9f\x95\xe4\xeb\x13\x11\xb1\x13\x11\x47\x23\xe2\xeb\xb7"
      "\x22\xbe\x95\xfc\x7f\xdc\xc6\xd6\xf6\xca\x5c\xad\x56\xdd\xc8\xb7\x2b\xcd"
      "\xd5\xf5\x4a\x63\x6b\xfb\xf2\xf2\xea\xdc\x52\x75\xa9\xba\x36\x33\x33\x7d"
      "\x6d\xf6\xfa\xec\xd5\xd9\xa9\x81\xb4\x73\x22\x22\x6e\x7c\xe5\x8f\x3f\xfc"
      "\xde\xcf\xbe\x7a\xe3\x57\x9f\x7f\xf0\xfb\x7b\x7f\xbe\xf8\xed\x76\x5a\x63"
      "\x79\xfd\xab\xed\x18\xa4\x4e\xd3\x4b\xd9\xff\x45\xd7\x68\x44\x6c\xbc\x8b"
      "\x60\x05\x18\xc9\xd7\xa5\x3e\xf5\xdf\x1d\x19\x62\x32\x00\x00\xec\xa9\x7d"
      "\x8d\xff\xf1\x88\xf8\x4c\x76\xfd\x3f\x1e\x23\xd9\xd5\x29\x00\x00\x00\x70"
      "\x90\xb4\xbe\x34\x16\xff\x4a\x22\x5a\x00\x00\x00\xc0\x81\x95\x66\x73\x60"
      "\x93\xb4\x9c\xcf\x05\x18\x8b\x34\x2d\x97\x3b\x73\x78\x3f\x19\xc7\xd3\x5a"
      "\xbd\xd1\xfc\xdc\x62\x7d\x73\x6d\xa1\x33\x57\x76\x22\x4a\xe9\xe2\x72\xad"
      "\x3a\x95\xcf\x15\x9e\x88\x52\xd2\xde\x9e\xce\xe7\xd8\x76\xb7\xaf\xec\xda"
      "\x9e\x89\x88\x93\x11\xf1\x83\xf1\x63\xd9\x76\x79\xbe\x5e\x5b\x28\x7a\xf0"
      "\x03\x00\x00\x00\x0e\x89\x13\xbb\xfa\xff\xff\x18\xcf\xfa\xff\x47\x8a\xce"
      "\x0b\x00\x00\x00\x18\xb0\x89\xa2\x13\x00\x00\x00\x00\xde\x39\xfd\x7f\x00"
      "\x00\x00\x38\xf8\xf4\xff\x01\x00\x00\xe0\x40\xfb\xda\xed\xdb\xed\xa5\xd5"
      "\x7d\xfe\xf5\xc2\xfd\xad\xcd\x95\xfa\xfd\xcb\x0b\xd5\xc6\x4a\x79\x75\x73"
      "\xbe\x3c\x5f\xdf\x58\x2f\x2f\xd5\xeb\x4b\xd9\x6f\xf6\xad\xee\xf5\x79\xb5"
      "\x7a\x7d\xfd\x0b\xb1\xb6\xf9\xb0\xd2\xac\x36\x9a\x95\xc6\xd6\xf6\xbd\xd5"
      "\xfa\xe6\x5a\xf3\xde\xf2\x6b\x8f\xc0\x06\x00\x00\x00\x86\xe8\xe4\xd9\x27"
      "\xbf\x4b\x22\x62\xe7\x8b\xc7\xb2\xa5\xed\x83\xa2\x93\x02\x86\x22\xd9\xa3"
      "\x3e\x7b\x48\xc8\xb3\x7c\xe3\x0f\x43\x48\x08\x18\x9a\x91\xa2\x13\x00\x0a"
      "\x33\x5a\x74\x02\x40\x61\x4a\x45\x27\x00\x14\x6e\xaf\x71\x80\xbe\x93\x77"
      "\x7e\x3d\xf8\x5c\x00\x00\x80\x77\x63\xf2\x53\xfd\xef\xff\x1b\x1b\x80\x83"
      "\x2d\xed\x5b\xd3\x1a\x6a\x1e\x00\xc0\xf0\xb8\xff\x0f\x87\x57\xe9\xf5\x19"
      "\x80\x57\x8b\xcb\x04\x28\xca\xc7\xf6\xa8\x7f\x9b\xfb\xff\x9d\x91\x84\x96"
      "\x01\x05\x00\x00\x28\xd8\x58\xb6\x24\x69\x39\xbf\x17\x38\x16\x69\x5a\x2e"
      "\x47\x7c\x98\x3d\x16\xa0\x94\x2c\x2e\xd7\xaa\x53\x79\xff\xe0\xb7\xe3\xa5"
      "\x23\xed\xed\xe9\xec\x9d\xc9\x9e\x73\x86\x01\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x8e\x56\x2b\x89\x16\x00"
      "\x00\x00\x70\xa0\x45\xa4\x7f\x4a\xb2\x5f\xf3\x8f\x98\x1c\xbf\x30\xb6\x7b"
      "\x7c\xe0\x83\xe4\x9f\xe3\xd9\x3a\x22\x1e\xfc\xe4\xee\x8f\x1e\xce\x35\x9b"
      "\x1b\xd3\xed\xfd\x7f\x7b\xb9\xbf\xf9\xe3\x7c\xff\x95\x22\x46\x30\x00\x00"
      "\x00\x80\xdd\xba\xfd\xf4\x6e\x3f\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\xe9\xc5\xf3\x47\xf3\xdd\x65"
      "\x98\x71\xff\xf2\xe5\x88\x98\xe8\x19\xff\xec\xd1\x6c\x75\x34\x4a\x11\x71"
      "\xfc\xef\x49\x8c\xbe\xf2\xbe\x24\x22\x46\x06\x10\x7f\xe7\x71\x44\x9c\xea"
      "\x15\x3f\x69\xa7\x15\x13\xd1\xc9\xa2\x57\xfc\x63\x05\xc6\x4f\x23\xe2\xc4"
      "\x00\xe2\xc3\x61\xf6\xa4\x7d\xfc\xb9\xd9\xeb\xfb\x97\xc6\xb9\x6c\xdd\xfb"
      "\xfb\x37\x9a\x2f\x6f\xab\xff\xf1\x2f\x8d\xee\xf1\x6f\xa4\xcf\xf1\xe7\xc3"
      "\x7d\xc6\x38\xfd\xf4\x17\x95\xbe\xf1\x1f\x47\x9c\x1e\xed\x7d\xfc\xe9\xc6"
      "\x4f\xfa\xc4\x3f\xbf\xcf\xf8\xdf\xfc\xc6\xf6\x76\xbf\xba\xd6\x4f\x23\x26"
      "\x7b\x9e\x7f\x92\xd7\x62\x55\x9a\xab\xeb\x95\xc6\xd6\xf6\xe5\xe5\xd5\xb9"
      "\xa5\xea\x52\x75\x6d\x66\x66\xfa\xda\xec\xf5\xd9\xab\xb3\x53\x95\xc5\xe5"
      "\x5a\x35\xff\xb7\x67\x8c\xef\x7f\xfa\x97\xff\x79\x53\xfb\x8f\xf7\x89\x3f"
      "\xb1\x47\xfb\x2f\xec\xb3\xfd\xff\x7e\xfa\xf0\xf9\x27\x3a\xc5\x52\xaf\xf8"
      "\x17\xcf\xf7\x3e\xff\x9e\xea\x13\x3f\xcd\xcf\x7d\x9f\xcd\xcb\xed\xfa\xc9"
      "\x6e\x79\xa7\x53\x7e\xd5\x99\x9f\xff\xe6\xcc\x9b\xda\xbf\xd0\xa7\xfd\x2f"
      "\xff\xfe\x3d\x4e\xb4\xed\x98\x17\xf7\xd9\xfe\x4b\x77\xbe\xf3\x6c\x9f\x2f"
      "\x05\x00\x86\xa0\xb1\xb5\xbd\x32\x57\xab\x55\x37\x3e\x8a\x85\x34\xde\x8b"
      "\x34\x14\x06\x52\x38\xf2\x7e\xa4\xa1\xd0\x29\x14\x7d\x64\x02\x00\x00\x06"
      "\xed\x7f\x17\xfd\x45\x67\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x87\xd7\x30\x7e\x4e\x6c\x77\xcc\x9d\x62\x9a\x0a\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\xf0\x46\xff\x0d\x00\x00\xff\xff\x0e\x1a\xdb\x78",
      1238);
  syz_mount_image(/*fs=*/0x20000080, /*dir=*/0x20000140,
                  /*flags=MS_LAZYTIME|MS_MANDLOCK*/ 0x2000040,
                  /*opts=*/0x20000280, /*chdir=*/0x10, /*size=*/0x4d6,
                  /*img=*/0x20000880);
  memcpy((void*)0x20000240, "./file0\000", 8);
  memcpy((void*)0x200000c0, "./file0\000", 8);
  memcpy((void*)0x20000140, "incremental-fs\000", 15);
  syscall(__NR_mount, /*src=*/0x20000240ul, /*dst=*/0x200000c0ul,
          /*type=*/0x20000140ul, /*flags=*/0ul, /*opts=*/0ul);
  memcpy((void*)0x20000580, "./file2\000", 8);
  syscall(__NR_open, /*file=*/0x20000580ul,
          /*flags=O_TRUNC|O_SYNC|O_NOATIME|O_LARGEFILE|O_CREAT|O_RDWR|0x3c*/
          0x14927eul, /*mode=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  do_sandbox_none();
  return 0;
}