// https://syzkaller.appspot.com/bug?id=487023d89abc146dc9dcf191b2d632847e88fa94
// 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[1] = {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 = 0x800080 (8 bytes)
  //    opts: ptr[in, fs_options[ext4_options]] {
  //      fs_options[ext4_options] {
  //        elems: array[fs_opt_elem[ext4_options]] {
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              test_dummy_encryption: buffer: {74 65 73 74 5f 64 75 6d 6d 79
  //              5f 65 6e 63 72 79 70 74 69 6f 6e} (length 0x15)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              journal_ioprio: fs_opt["journal_ioprio", fmt[hex, int32[0:7]]]
  //              {
  //                name: buffer: {6a 6f 75 72 6e 61 6c 5f 69 6f 70 72 69 6f}
  //                (length 0xe) eq: const = 0x3d (1 bytes) val: int32 = 0x4 (18
  //                bytes)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              errors_remount: buffer: {65 72 72 6f 72 73 3d 72 65 6d 6f 75
  //              6e 74 2d 72 6f} (length 0x11)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //        }
  //        common: array[fs_opt_elem[fs_options_common]] {
  //        }
  //        null: const = 0x0 (1 bytes)
  //      }
  //    }
  //    chdir: int8 = 0x1 (1 bytes)
  //    size: len = 0x47d (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x47d)
  //    }
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x2000000008c0, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000000300, "./file1\000", 8));
  NONFAILING(memcpy((void*)0x2000000000c0, "test_dummy_encryption", 21));
  NONFAILING(*(uint8_t*)0x2000000000d5 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000000d6, "journal_ioprio", 14));
  NONFAILING(*(uint8_t*)0x2000000000e4 = 0x3d);
  NONFAILING(sprintf((char*)0x2000000000e5, "0x%016llx", (long long)4));
  NONFAILING(*(uint8_t*)0x2000000000f7 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000000f8, "errors=remount-ro", 17));
  NONFAILING(*(uint8_t*)0x200000000109 = 0x2c);
  NONFAILING(*(uint8_t*)0x20000000010a = 0);
  NONFAILING(memcpy(
      (void*)0x200000000900,
      "\x78\x9c\xec\xdc\xcb\x6f\x1b\x45\x18\x00\xf0\x6f\x37\x8f\xbe\x49\x28\xe5"
      "\xd1\x07\x10\x28\x88\x88\x47\xd2\xb4\x05\x7a\xe0\x00\x08\x24\x0e\x45\x42"
      "\x82\x03\x1c\xa3\x24\xad\x4a\xd3\x06\x35\x41\x6a\xab\x08\x5a\x04\xe5\x84"
      "\x10\x12\x77\xe0\xc8\xbf\xc0\x09\x2e\x08\x71\x42\xe2\x0a\x77\x54\xa9\x42"
      "\xb9\xb4\xe5\x64\xb4\xde\xdd\xc6\x71\x1c\x37\x4e\xed\x18\xea\xdf\x4f\xda"
      "\x76\x66\x77\x76\x67\x3e\xef\x8e\x3d\xbb\x63\x27\x80\x9e\x35\x92\xfd\x93"
      "\x44\xec\x8c\x88\x3f\x22\x62\x28\xcf\xae\x2c\x30\x92\xff\x77\x63\x69\x71"
      "\xea\xe6\xd2\xe2\x54\x12\x95\xca\xdb\x7f\x27\xd5\x72\xd7\x97\x16\xa7\xca"
      "\xa2\xe5\x7e\x3b\x8a\xcc\x68\x1a\x91\x7e\x9a\xc4\xfe\x06\xf5\xce\x5f\xb8"
      "\x78\x7a\x72\x76\x76\xe6\x5c\x91\x1f\x5f\x38\xf3\xc1\xf8\xfc\x85\x8b\xcf"
      "\x9d\x3a\x33\x79\x72\xe6\xe4\xcc\xd9\xc3\xc7\x8e\x1d\x3d\x32\xf1\xe2\x0b"
      "\x87\x9f\x6f\xd4\xec\x6f\x3f\x6b\x31\xce\xac\x4d\xd7\xf7\x7d\x34\x77\x60"
      "\xef\x1b\xef\x7d\xf5\xe6\xf1\x2f\xb2\x75\x83\x65\xfc\x75\x71\xb4\xc9\x48"
      "\xb3\x8d\x4f\x56\x2a\x6d\xae\xae\xbb\x76\xd5\xa4\x93\xfe\x2e\x36\x84\x96"
      "\xf4\x45\x44\x76\xba\x06\xaa\xfd\x7f\x28\xfa\x62\xf9\xe4\x0d\xc5\xeb\x9f"
      "\x74\xb5\x71\x40\x47\x55\x2a\x95\xca\x8e\xb5\x37\x5f\xaa\x00\x77\xb1\xed"
      "\x35\xef\x04\x19\x5d\x1e\x7a\x45\xf9\x41\x9f\xdd\xff\x96\x4b\xfd\x20\xe0"
      "\xe5\xce\x0c\x3d\xfe\x13\xae\xbd\x92\xdf\x00\x5d\xdf\x1a\x53\x37\x96\x16"
      "\xab\x4b\xbe\xa5\x3f\xd2\xa2\xcc\x40\xdd\xfd\x6d\x3b\x8d\x44\xc4\xbb\x97"
      "\xfe\xf9\x26\x5b\xa2\x33\xcf\x21\x00\x00\x56\xf8\x31\x1b\xff\x3c\xdb\x68"
      "\xfc\x97\xc6\x03\x35\xe5\xee\x29\xe6\x86\x86\x23\xe2\xde\x88\xd8\x1d\x11"
      "\xf7\x45\xc4\x9e\x88\xb8\x3f\xa2\x5a\xf6\xc1\x88\x78\xa8\xc5\xfa\xeb\x27"
      "\x49\x56\x8f\x7f\xd2\xab\x1b\x0a\x6c\x9d\xb2\xf1\xdf\x4b\xc5\xdc\xd6\xca"
      "\xf1\x5f\x39\xfa\x8b\xe1\xbe\x22\xb7\xab\x1a\xff\x40\x72\xe2\xd4\xec\xcc"
      "\xa1\xe2\x35\x19\x8d\x81\x2d\x59\x7e\xa2\x49\x1d\x3f\xbd\xf6\xfb\x97\x6b"
      "\x6d\xab\x1d\xff\x65\x4b\x56\x7f\x39\x16\x2c\xda\x71\xb5\x7f\xcb\xca\x7d"
      "\xa6\x27\x17\x26\xef\x24\xe6\x5a\xd7\x2e\x47\xec\xeb\x6f\x14\x7f\x72\x6b"
      "\x26\x20\x89\x88\xbd\x11\xb1\x6f\x83\x75\x9c\x7a\xfa\xfb\x03\x6b\x6d\xbb"
      "\x7d\xfc\x4d\xb4\x61\x9e\xa9\xf2\x5d\xc4\x53\xf9\xf9\xbf\x14\x75\xf1\x97"
      "\x92\xe6\xf3\x93\xe3\x5b\x63\x76\xe6\xd0\x78\x79\x55\xac\xf6\xeb\x6f\x57"
      "\xde\x5a\xab\xfe\x3b\x8a\xbf\x0d\xb2\xf3\xbf\xbd\xe1\xf5\x7f\x2b\xfe\xe1"
      "\xa4\x76\xbe\x76\xbe\xf5\x3a\xae\xfc\xf9\xf9\x9a\xf7\x34\xeb\xbc\xfe\x87"
      "\x6b\xf7\xc9\xae\xff\xc1\xe4\x9d\x6a\x7a\xb0\x58\x77\x7e\x72\x61\xe1\xdc"
      "\x44\xc4\x60\x72\x3c\x6f\x74\xed\xfa\xc3\xcb\xfb\x96\xf9\xb2\x7c\x16\xff"
      "\xe8\xc1\xc6\xfd\x7f\x77\x2c\xbf\x12\xfb\x23\x22\xbb\x88\x1f\x8e\x88\x47"
      "\x22\xe2\xd1\xa2\xed\x8f\x45\xc4\xe3\x11\x71\xb0\x49\xfc\xbf\xbc\xfa\xc4"
      "\xfb\x1b\x8f\xbf\xb3\xb2\xf8\xa7\x5b\x3a\xff\xcb\x89\xc1\xa8\x5f\xd3\x38"
      "\xd1\x77\xfa\xe7\x1f\x56\x54\x3a\xbc\x2a\xfe\x9b\xcd\xcf\xff\xd1\x6a\x6a"
      "\xb4\x58\xb3\x9e\xf7\xbf\xf5\xb4\x6b\x63\x57\x33\x00\x00\x00\xfc\xff\xa4"
      "\x11\xb1\x33\x92\x74\xec\x56\x3a\x4d\xc7\xc6\xf2\xef\xcb\xef\x89\x48\x67"
      "\xe7\xe6\x17\x9e\x39\x31\xf7\xe1\xd9\xe9\xfc\x37\x02\xc3\x31\x90\x96\x4f"
      "\xba\x86\x6a\x9e\x87\x4e\x14\xb7\xf5\x79\xfe\x72\x44\xe4\x5f\x2d\x28\xb7"
      "\x1f\x29\x9e\x1b\x7f\xdd\xb7\xad\x9a\x1f\x9b\x9a\x9b\x9d\xee\x76\xf0\xd0"
      "\xe3\x76\xac\xd1\xff\x33\x7f\xf5\x75\xbb\x75\x40\xc7\xf9\xbd\x16\xf4\x2e"
      "\xfd\x1f\x7a\x97\xfe\x0f\xbd\xab\x71\xff\xdf\xb6\xe9\xed\x00\x36\x5f\x83"
      "\xfe\xaf\xf3\x43\x8f\x68\xf4\xf9\xff\x71\x17\xda\x01\x6c\xbe\xba\xfe\x6f"
      "\xda\x0f\x7a\x88\xe7\x7f\xd0\xbb\xf4\x7f\xe8\x5d\xfa\x3f\xf4\xa4\xf9\x6d"
      "\x71\xfb\x1f\xc9\x37\x4d\x94\x47\xda\xe0\xee\xcd\x12\xfd\xe7\xf3\x43\xb7"
      "\xff\xc8\x79\x62\x4b\x44\x74\xe6\xc8\x17\x2e\x9e\x8e\x81\x4e\x1d\xb9\x48"
      "\x0c\xb5\xf0\x67\x0e\xb6\xb6\xbf\x19\x91\x76\xec\xa5\xbb\x2b\x12\xd1\xdf"
      "\x99\x23\xa7\x9b\x14\x45\x17\xdf\x94\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\xda\xe8\xdf\x00\x00\x00\xff\xff\xc9\xfc\xd2\xbb",
      1149));
  NONFAILING(syz_mount_image(/*fs=*/0x2000000008c0, /*dir=*/0x200000000300,
                             /*flags=MS_I_VERSION|MS_DIRSYNC*/ 0x800080,
                             /*opts=*/0x2000000000c0, /*chdir=*/1,
                             /*size=*/0x47d, /*img=*/0x200000000900));
  //  syz_mount_image$fuse arguments: [
  //    fs: nil
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 63 67 72 6f 75 70 00} (length 0x9)
  //    }
  //    flags: mount_flags = 0xa00008 (8 bytes)
  //    opts: nil
  //    chdir: int8 = 0xec (1 bytes)
  //    size: const = 0x0 (8 bytes)
  //    img: nil
  //  ]
  //  returns fd_dir
  NONFAILING(memcpy((void*)0x200000000400, "./cgroup\000", 9));
  NONFAILING(
      syz_mount_image(/*fs=*/0, /*dir=*/0x200000000400,
                      /*flags=MS_I_VERSION|MS_RELATIME|MS_NOEXEC*/ 0xa00008,
                      /*opts=*/0, /*chdir=*/0xec, /*size=*/0, /*img=*/0));
  //  chdir arguments: [
  //    dir: ptr[in, buffer] {
  //      buffer: {2e 2f 63 67 72 6f 75 70 00} (length 0x9)
  //    }
  //  ]
  NONFAILING(memcpy((void*)0x200000000540, "./cgroup\000", 9));
  syscall(__NR_chdir, /*dir=*/0x200000000540ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 00} (length 0x2)
  //    }
  //    flags: open_flags = 0x0 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  NONFAILING(memcpy((void*)0x200000000080, ".\000", 2));
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
                /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  getdents64 arguments: [
  //    fd: fd_dir (resource)
  //    ent: nil
  //    count: len = 0x59 (8 bytes)
  //  ]
  syscall(__NR_getdents64, /*fd=*/r[0], /*ent=*/0ul, /*count=*/0x59ul);
  return 0;
}