// https://syzkaller.appspot.com/bug?id=6247ad40f3aa036fa257dc6052f7ca87bd224ae6
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

//% 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;
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

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;
  install_segv_handler();
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_mount_image$ext4 arguments: [
  //    fs: ptr[in, buffer] {
  //      buffer: {65 78 74 34 00} (length 0x5)
  //    }
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
  //    }
  //    flags: mount_flags = 0x2004ce (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x3 (1 bytes)
  //    size: len = 0x451 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x451)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000000, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000000180, "./file1\000", 8));
  NONFAILING(*(uint8_t*)0x2000000001c0 = 0);
  NONFAILING(memcpy(
      (void*)0x200000000f80,
      "\x78\x9c\xec\xdc\xcd\x8f\x53\x55\x1b\x00\xf0\xe7\xde\x4e\x87\x97\x17\x70"
      "\x46\xc4\x0f\x3e\xd4\x51\x34\x4e\xfc\x98\x61\x00\x95\x85\x0b\x35\x9a\xb8"
      "\xc0\xc4\x44\x17\xba\x9c\xcc\x0c\x04\x29\x8c\x61\xc6\x44\x08\x51\x30\x06"
      "\x57\xc6\x98\xb8\x37\x2e\xfd\x17\x5c\xe9\xc6\x18\x57\x26\x6e\x75\x6f\x48"
      "\x88\x61\x03\xb8\xaa\xb9\xed\xbd\x4c\x5b\xda\xc2\x74\x5a\xaa\xd3\xdf\x2f"
      "\xb9\x70\xce\xbd\xe7\x72\xce\xd3\x73\x4f\x7b\xee\x3d\x2d\x01\x8c\xac\xa9"
      "\xec\x8f\x24\x62\x7b\x44\xfc\x1e\x11\x13\xf5\x6c\x73\x81\xa9\xfa\x5f\xd7"
      "\xaf\x9e\x5f\xb8\x71\xf5\xfc\x42\x12\xd5\xea\xdb\x7f\x25\xb5\x72\xd7\xae"
      "\x9e\x5f\x28\x8a\x16\xe7\x6d\xcb\x33\xd3\x69\x44\xfa\x59\x12\x7b\xdb\xd4"
      "\xbb\x72\xf6\xdc\xc9\xf9\x4a\x65\xe9\x4c\x9e\x9f\x5d\x3d\xf5\xc1\xec\xca"
      "\xd9\x73\xcf\x9d\x38\x35\x7f\x7c\xe9\xf8\xd2\xe9\x83\x47\x8e\x1c\x3e\x34"
      "\xf7\xe2\x0b\x07\x9f\xef\x4b\x9c\x59\x9b\xae\xed\xf9\x78\x79\xdf\xee\x37"
      "\xde\xfb\xea\xcd\xa3\x5f\x34\xc5\xdf\x12\x47\x9f\x4c\x75\x3b\xf8\x64\xb5"
      "\xda\xe7\xea\x86\x6b\x47\x43\x3a\x19\x1b\x62\x43\x58\x97\x52\x44\x64\xdd"
      "\x55\xae\x8d\xff\x89\x28\xc5\x5a\xe7\x4d\xc4\xeb\x9f\x0e\xb5\x71\xc0\x40"
      "\x55\xab\xd5\xea\xb6\xce\x87\x2f\x54\x81\x4d\x2c\x89\xe6\xbc\x21\x0f\xa3"
      "\xa2\xf8\xa0\xcf\xee\x7f\x8b\xad\x75\x12\xf0\xf2\xe0\xa6\x1f\x43\x77\xe5"
      "\x95\xfa\x0d\x50\x16\xf7\xf5\x7c\xab\x1f\x19\x8b\x34\x2f\x53\x6e\xb9\xbf"
      "\xed\xa7\xa9\x88\x78\xf7\xc2\xdf\xdf\x64\x5b\x0c\xe6\x39\x04\x00\x40\x93"
      "\x1f\xb2\xf9\xcf\xb3\xed\xe6\x7f\x69\x3c\xd0\x50\xee\x9e\x7c\x6d\x68\x32"
      "\x22\xee\x8d\x88\x9d\x11\x71\x5f\x44\xec\x8a\x88\xfb\x23\x6a\x65\x1f\x8c"
      "\x88\x87\xd6\x59\x7f\xeb\x22\xc9\xad\xf3\x9f\xf4\x72\x4f\x81\xdd\xa1\x6c"
      "\xfe\xf7\x52\xbe\xb6\xd5\x3c\xff\x2b\x66\x7f\x31\x59\xca\x73\x3b\x6a\xf1"
      "\x97\x93\x63\x27\x2a\x4b\x07\xf2\xd7\x64\x3a\xca\x5b\xb2\xfc\x5c\x97\x3a"
      "\x7e\x7c\xed\xb7\x2f\x3b\x1d\x6b\x9c\xff\x65\x5b\x56\x7f\x31\x17\xcc\xdb"
      "\x71\x79\x6c\x4b\xf3\x39\x8b\xf3\xab\xf3\x1b\x89\xb9\xd1\x95\x8b\x11\x7b"
      "\xc6\xda\xc5\x9f\xdc\x5c\x09\x48\x22\x62\x77\x44\xec\xe9\xb1\x8e\x13\x4f"
      "\x7f\xb7\xaf\xd3\xb1\xdb\xc7\xdf\x45\x1f\xd6\x99\xaa\xdf\x46\x3c\x55\xef"
      "\xff\x0b\xd1\x12\x7f\x21\xe9\xbe\x3e\x39\xfb\xbf\xa8\x2c\x1d\x98\x2d\xae"
      "\x8a\x5b\xfd\xf2\xeb\xa5\xb7\x3a\xd5\xbf\xa1\xf8\xfb\x20\xeb\xff\xff\xb7"
      "\xbd\xfe\x6f\xc6\x3f\x99\x34\xae\xd7\xae\xac\xbf\x8e\x4b\x7f\x7c\xde\xf1"
      "\x9e\xa6\xd7\xeb\x7f\x3c\x79\xa7\x96\x1e\xcf\xf7\x7d\x34\xbf\xba\x7a\x66"
      "\x2e\x62\x3c\x39\x5a\x6f\x74\xe3\xfe\x83\x6b\xe7\x16\xf9\xa2\x7c\x16\xff"
      "\xf4\xfe\xf6\xe3\x7f\x67\xac\xbd\x12\x7b\x23\x22\xbb\x88\x1f\x8e\x88\x47"
      "\x22\xe2\xd1\xbc\xed\x8f\x45\xc4\xe3\x11\xb1\xbf\x4b\xfc\x3f\xbf\xfa\xc4"
      "\xfb\xbd\xc7\x3f\x58\x59\xfc\x8b\xeb\xea\xff\xb5\xc4\x78\xb4\xee\x69\x9f"
      "\x28\x9d\xfc\xe9\xfb\xa6\x4a\x27\x6f\x89\xff\x46\xf7\xfe\x3f\x5c\x4b\x4d"
      "\xe7\x7b\xee\xe4\xfd\xef\x4e\xda\xd5\xdb\xd5\x0c\x00\x00\x00\xff\x3d\x69"
      "\x44\x6c\x8f\x24\x9d\xb9\x99\x4e\xd3\x99\x99\xfa\xf7\xe5\x77\x45\xa4\x95"
      "\xe5\x95\xd5\x67\x8e\x2d\x7f\x78\x7a\xb1\xfe\x1b\x81\xc9\x28\xa7\xc5\x93"
      "\xae\x89\x86\xe7\xa1\x73\xf9\x6d\x7d\x3d\x7f\x31\x22\xea\x5f\x2d\x28\x8e"
      "\x1f\xca\x9f\x1b\x7f\x5d\xda\x5a\xcb\xcf\x2c\x2c\x57\x16\x87\x1d\x3c\x8c"
      "\xb8\x6d\x1d\xc6\x7f\xe6\xcf\xd2\xb0\x5b\x07\x0c\x9c\xdf\x6b\xc1\xe8\x32"
      "\xfe\x61\x74\x19\xff\x30\xba\x8c\x7f\x18\x5d\x6d\xc6\xff\xd6\x61\xb4\x03"
      "\xb8\xfb\xda\x7d\xfe\x7f\x32\x84\x76\x00\x77\x5f\xcb\xf8\xb7\xec\x07\x23"
      "\xc4\xfd\x3f\x8c\xae\x8e\xe3\x7f\x33\xff\xcf\x3f\x40\x8d\xcf\x7f\x18\x49"
      "\x2b\x5b\xe3\xf6\x3f\x92\xef\x9a\x28\xfe\xa5\x1e\x4f\xdf\xb4\x89\x28\xff"
      "\x2b\x9a\xb1\xf1\x44\x35\x69\xdb\xb9\x91\x0e\xbb\x61\x12\x83\x4c\x0c\xf7"
      "\x7d\x09\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa0\x5f\xfe\x09\x00"
      "\x00\xff\xff\xaa\x61\xe0\x4f",
      1105));
  NONFAILING(syz_mount_image(
      /*fs=*/0x200000000000, /*dir=*/0x200000000180,
      /*flags=MS_RELATIME|MS_NOSUID|MS_NOEXEC|MS_NODEV|0x4c0*/ 0x2004ce,
      /*opts=*/0x2000000001c0, /*chdir=*/3, /*size=*/0x451,
      /*img=*/0x200000000f80));
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  NONFAILING(memcpy((void*)0x2000000000c0, "./bus\000", 6));
  syscall(__NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x2000000000c0ul,
          /*mode=*/0ul);
  //  chdir arguments: [
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 62 75 73 00} (length 0x6)
  //    }
  //  ]
  NONFAILING(memcpy((void*)0x200000000180, "./bus\000", 6));
  syscall(__NR_chdir, /*dir=*/0x200000000180ul);
  //  quotactl$Q_QUOTAON arguments: [
  //    cmd: quota_cmd_quota_on = 0xffffffff80000202 (8 bytes)
  //    special: ptr[in, blockdev_filename] {
  //      union blockdev_filename {
  //        loop: loop_filename {
  //          prefix: buffer: {2f 64 65 76 2f 6c 6f 6f 70} (length 0x9)
  //          id: proc = 0x0 (1 bytes)
  //          z: const = 0x0 (1 bytes)
  //        }
  //      }
  //    }
  //    id: uid (resource)
  //    addr: nil
  //  ]
  NONFAILING(memcpy((void*)0x200000000180, "/dev/loop", 9));
  NONFAILING(*(uint8_t*)0x200000000189 = 0x30);
  NONFAILING(*(uint8_t*)0x20000000018a = 0);
  syscall(__NR_quotactl, /*cmd=Q_QUOTAON_PRJ*/ 0xffffffff80000202ul,
          /*special=*/0x200000000180ul, /*id=*/(intptr_t)-1, /*addr=*/0ul);
  //  mprotect arguments: [
  //    addr: VMA[0x3000]
  //    len: len = 0x3000 (8 bytes)
  //    prot: mmap_prot = 0x9 (8 bytes)
  //  ]
  syscall(__NR_mprotect, /*addr=*/0x200000000000ul, /*len=*/0x3000ul,
          /*prot=PROT_SEM|PROT_READ*/ 9ul);
  //  openat$cgroup_ro arguments: [
  //    fd: fd_cgroup (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {68 75 67 65 74 6c 62 2e 31 47 42 2e 75 73 61 67 65 5f 69 6e
  //      5f 62 79 74 65 73 00} (length 0x1b)
  //    }
  //    flags: const = 0x275a (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd
  NONFAILING(
      memcpy((void*)0x200000000180, "hugetlb.1GB.usage_in_bytes\000", 27));
  res = syscall(__NR_openat, /*fd=*/(intptr_t)-1, /*file=*/0x200000000180ul,
                /*flags=*/0x275a, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  mmap arguments: [
  //    addr: VMA[0xb36000]
  //    len: len = 0xb36000 (8 bytes)
  //    prot: mmap_prot = 0xa (8 bytes)
  //    flags: mmap_flags = 0x28011 (8 bytes)
  //    fd: fd (resource)
  //    offset: intptr = 0x0 (8 bytes)
  //  ]
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0xb36000ul,
          /*prot=PROT_SEM|PROT_WRITE*/ 0xaul,
          /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
          /*fd=*/r[0], /*offset=*/0ul);
  //  write$FUSE_INIT arguments: [
  //    fd: fd_fuse (resource)
  //    arg: ptr[in, fuse_out_t[fuse_unique, fuse_init_out]] {
  //      fuse_out_t[fuse_unique, fuse_init_out] {
  //        len: len = 0x50 (4 bytes)
  //        err: fuse_errors = 0x0 (4 bytes)
  //        unique: fuse_unique (resource)
  //        payload: fuse_init_out {
  //          major: const = 0x7 (4 bytes)
  //          minor: const = 0x29 (4 bytes)
  //          max_readahead: int32 = 0x0 (4 bytes)
  //          flags: fuse_init_flags = 0x51500430 (4 bytes)
  //          max_background: int16 = 0x0 (2 bytes)
  //          congestion_threshold: int16 = 0x2 (2 bytes)
  //          max_write: int32 = 0xfffffffd (4 bytes)
  //          time_gran: int32 = 0x2 (4 bytes)
  //          max_pages: const = 0x0 (2 bytes)
  //          map_alignment: const = 0x0 (2 bytes)
  //          flags2: fuse_init_flags2 = 0x4 (4 bytes)
  //          max_stack_depth: int32 = 0x8 (4 bytes)
  //          unused: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  //          00 00 00 00 00 00 00 00} (length 0x18)
  //        }
  //      }
  //    }
  //    len: bytesize = 0x50 (8 bytes)
  //  ]
  NONFAILING(*(uint32_t*)0x200000000440 = 0x50);
  NONFAILING(*(uint32_t*)0x200000000444 = 0);
  NONFAILING(*(uint64_t*)0x200000000448 = 0);
  NONFAILING(*(uint32_t*)0x200000000450 = 7);
  NONFAILING(*(uint32_t*)0x200000000454 = 0x29);
  NONFAILING(*(uint32_t*)0x200000000458 = 0);
  NONFAILING(*(uint32_t*)0x20000000045c = 0x51500430);
  NONFAILING(*(uint16_t*)0x200000000460 = 0);
  NONFAILING(*(uint16_t*)0x200000000462 = 2);
  NONFAILING(*(uint32_t*)0x200000000464 = 0xfffffffd);
  NONFAILING(*(uint32_t*)0x200000000468 = 2);
  NONFAILING(*(uint16_t*)0x20000000046c = 0);
  NONFAILING(*(uint16_t*)0x20000000046e = 0);
  NONFAILING(*(uint32_t*)0x200000000470 = 4);
  NONFAILING(*(uint32_t*)0x200000000474 = 8);
  NONFAILING(memset((void*)0x200000000478, 0, 24));
  syscall(__NR_write, /*fd=*/(intptr_t)-1, /*arg=*/0x200000000440ul,
          /*len=*/0x50ul);
  //  open arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    flags: open_flags = 0x0 (8 bytes)
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  //  returns fd
  NONFAILING(memcpy((void*)0x200000001b80, ".\000", 2));
  res = syscall(__NR_open, /*file=*/0x200000001b80ul, /*flags=*/0ul,
                /*mode=*/0ul);
  if (res != -1)
    r[1] = res;
  //  ioctl$FS_IOC_SETFLAGS arguments: [
  //    fd: fd (resource)
  //    cmd: const = 0x40086602 (4 bytes)
  //    arg: ptr[in, fs_flags] {
  //      fs_flags = 0x40000000 (4 bytes)
  //    }
  //  ]
  NONFAILING(*(uint32_t*)0x2000000001c0 = 0x40000000);
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x40086602,
          /*arg=*/0x2000000001c0ul);
  //  open arguments: [
  //    file: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    flags: open_flags = 0x0 (8 bytes)
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  //  returns fd
  NONFAILING(memcpy((void*)0x200000000300, ".\000", 2));
  res = syscall(__NR_open, /*file=*/0x200000000300ul, /*flags=*/0ul,
                /*mode=*/0ul);
  if (res != -1)
    r[2] = res;
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {13 13 77 c5 fc 35 d4 14 54 d5 d4 1d 29 ad 1a 60 29 59 81 46
  //      e6 be 16 6e 41 ad 0d bd 40 54 03 3c 9f 33 bb da 82 24 a2 f3 d7 72 e7
  //      63 6e 48 b3 3c bf 70 83 72 e8 f1 b9 93 3e c5 12 77 43 be 22 06 20 9e
  //      f0 2d f9 cb f2 f6 e8 80 d3 38 2f 00} (length 0x4e)
  //    }
  //    mode: open_mode = 0x0 (8 bytes)
  //  ]
  NONFAILING(
      memcpy((void*)0x200000000340,
             "\023\023w\305\3745\324\024T\325\324\035)\255\032`)"
             "Y\201F\346\276\026nA\255\r\275@T\003<\2373\273\332\202$"
             "\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));
  syscall(__NR_mkdirat, /*fd=*/r[2], /*path=*/0x200000000340ul, /*mode=*/0ul);
  return 0;
}