// https://syzkaller.appspot.com/bug?id=accb70855cc889786b857af32154981cfad85861
// 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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  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 73 79 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x800 (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 {
  //              grpjquota_path: fs_opt["grpjquota", stringnoz[filename]] {
  //                name: buffer: {67 72 70 6a 71 75 6f 74 61} (length 0x9)
  //                eq: const = 0x3d (1 bytes)
  //                val: buffer: {2e 2f 64 65 76 2f 6d 61 70 70 65 72 2f 63 6f
  //                6e 74 72 6f 6c} (length 0x14)
  //              }
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              nodelalloc: buffer: {6e 6f 64 65 6c 61 6c 6c 6f 63} (length
  //              0xa)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              sysvgroups: buffer: {73 79 73 76 67 72 6f 75 70 73} (length
  //              0xa)
  //            }
  //            comma: const = 0x2c (1 bytes)
  //          }
  //          fs_opt_elem[ext4_options] {
  //            elem: union ext4_options {
  //              inlinecrypt: buffer: {69 6e 6c 69 6e 65 63 72 79 70 74}
  //              (length 0xb)
  //            }
  //            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 = 0x501 (8 bytes)
  //    img: ptr[in, buffer] {
  //      buffer: (compressed buffer with length 0x501)
  //    }
  //  ]
  //  returns fd_dir
  memcpy((void*)0x200000000180, "ext4\000", 5);
  memcpy((void*)0x200000000000, "./sys\000", 6);
  memcpy((void*)0x2000000002c0, "grpjquota", 9);
  *(uint8_t*)0x2000000002c9 = 0x3d;
  memcpy((void*)0x2000000002ca, "./dev/mapper/control", 20);
  *(uint8_t*)0x2000000002de = 0x2c;
  memcpy((void*)0x2000000002df, "nodelalloc", 10);
  *(uint8_t*)0x2000000002e9 = 0x2c;
  memcpy((void*)0x2000000002ea, "sysvgroups", 10);
  *(uint8_t*)0x2000000002f4 = 0x2c;
  memcpy((void*)0x2000000002f5, "inlinecrypt", 11);
  *(uint8_t*)0x200000000300 = 0x2c;
  *(uint8_t*)0x200000000301 = 0;
  memcpy(
      (void*)0x200000000e00,
      "\x78\x9c\xec\xdd\xcf\x6b\x9b\xe7\x1d\x00\xf0\xaf\x24\xdb\x89\x1d\x6f\xf9"
      "\xb1\x31\x92\x1c\x96\x40\x06\xd9\x0f\x62\xf9\x07\x23\xf6\x36\x18\x39\x6d"
      "\x3b\x04\xc6\x02\x3b\x0d\x32\xcf\x56\xbc\xcc\xb2\x65\x2c\x39\x8b\x4d\x0e"
      "\xce\x76\xcb\x61\x87\xb1\xb1\x41\xe9\xa1\xf7\xfe\x05\xbd\x34\xa7\xe6\x52"
      "\x7a\x6e\xe9\xa9\x50\x7a\x28\x29\x6d\xea\x42\x4b\x69\x51\xd1\x2b\xc9\x3f"
      "\x25\xdb\x75\x6c\x2b\xf6\xfb\xf9\x80\xac\xe7\x7d\x24\xbd\xdf\xe7\xb1\xf8"
      "\x3e\x7a\xf5\xbc\xef\xab\x37\x80\xd4\xba\x5c\xfb\x93\x89\xe8\x8f\x88\xb7"
      "\x22\xe2\x74\x7d\x71\xe3\x13\x2e\xd7\xef\x56\x9e\x3d\x98\xa8\xdd\x32\x51"
      "\xad\xde\xfa\x38\x93\x3c\xaf\xb6\xdc\x7c\x6a\xf3\x75\xa7\x22\x22\x17\x11"
      "\x27\x23\xe2\x0f\xbf\x89\xf8\x4b\x66\x6b\xdc\xf2\xe2\xd2\xf4\x78\xb1\x58"
      "\x98\x6f\x2c\xe7\x2b\x33\x73\xf9\xf2\xe2\xd2\xb5\xbb\x33\xe3\x53\x85\xa9"
      "\xc2\xec\xd0\xe8\xf5\xb1\xb1\xd1\xc1\x91\xe1\xb1\x3d\xf6\xec\xeb\x2d\x35"
      "\x8f\xfe\xf5\xb7\x47\x37\x5f\xfb\x5d\xcf\xab\x9f\xff\xf3\xe9\x93\x7f\xbf"
      "\xf1\x7a\xad\x59\xfd\x8d\xc7\xd6\xf7\x63\x3f\xd5\xbb\xde\x1d\x67\xd7\xd5"
      "\x75\x45\xc4\xaf\x0e\x22\x58\x07\xe4\x1a\xfd\xe9\xed\x74\x43\xd8\x93\xda"
      "\xfb\xf7\xbd\x88\xb8\x92\xe4\xff\xe9\xc8\x25\xef\x26\x90\x06\xd5\x6a\xb5"
      "\xfa\x55\xf5\x44\xbb\x87\x97\xab\xc0\xb1\x95\x4d\xb6\x81\x33\xd9\x81\x88"
      "\xa8\x97\xb3\xd9\x81\x81\xfa\x36\xfc\xf7\xa3\x2f\x5b\x2c\x95\x2b\x3f\xbb"
      "\x53\x5a\x98\x9d\xac\x6f\x2b\x9f\x89\xee\xec\x9d\xbb\xc5\xc2\x60\xe3\xbb"
      "\xc2\x99\xe8\xce\xd4\x96\x87\x92\xf2\xda\xf2\xf0\xa6\xe5\x91\x88\x64\x1b"
      "\xf8\x3f\xb9\xde\x64\x79\x60\xa2\x54\x9c\x3c\xdc\xa1\x0e\xd8\xe4\xd4\xa6"
      "\xfc\xff\x2c\x57\xcf\x7f\x20\x25\x7c\xe5\x87\xf4\x92\xff\x90\x5e\xf2\x1f"
      "\xd2\x4b\xfe\x43\x7a\xc9\x7f\x48\x2f\xf9\x0f\xe9\xd5\x95\x1c\xaa\x0b\xa4"
      "\x91\xcf\x7f\x48\x2f\xf9\x0f\xe9\x25\xff\x21\xbd\xb6\xcb\xff\x9e\x43\x6c"
      "\x07\x70\xa8\x7e\x7f\xf3\x66\xed\x56\xad\x9f\xff\x9e\x8d\xc9\x7b\x8b\x0b"
      "\xd3\xa5\x7b\xd7\x26\x0b\xe5\xe9\x81\x99\x85\x89\x81\x89\xd2\xfc\xdc\xc0"
      "\x54\xa9\x34\x95\x9c\xb3\x33\xb3\xd3\xfa\x8a\xa5\xd2\xdc\xd0\xcf\x63\xe1"
      "\x7e\xbe\x52\x28\x57\xf2\xe5\xc5\xa5\xdb\x33\xa5\x85\xd9\xca\xed\xe4\xbc"
      "\xfe\xdb\x85\xee\xc3\xe9\x16\xb0\x0b\x67\x2f\x3d\x7e\x27\x13\x11\xcb\xbf"
      "\xe8\x4d\x6e\xb1\xee\x23\x5f\xae\xc2\xf1\x56\xad\x66\xa2\xd3\xe7\x20\x03"
      "\x9d\x91\xeb\xf4\x00\x04\x74\x8c\xa9\x7f\x48\xaf\x6f\xf1\x1d\xbf\xed\x8f"
      "\x84\x01\x47\x5b\x8b\x9f\xe8\xdd\xa0\xcd\x01\xc2\xbf\x8e\xb9\x03\x09\x07"
      "\x1c\x82\x6c\xa7\x1b\x00\x74\xcc\xd5\x0b\xcf\xb1\xff\xaf\xfd\xef\x06\x03"
      "\x47\x80\xf9\x7f\x48\x2f\xf3\xff\x90\x5e\x9b\xb7\xf1\x6d\x0f\x40\xfa\xec"
      "\x71\xfe\x3f\x76\x9a\xff\x77\x0c\x31\xbc\xb8\xcc\xff\x43\x7a\xf5\xb7\xb9"
      "\xfe\xd7\x77\xd6\x5d\xbb\x6b\x30\x22\xbe\x1b\x11\x6f\xe7\xba\x4f\x34\xaf"
      "\xf5\x05\x1c\x07\xd9\x0f\x33\x8d\xed\xff\xab\xa7\x7f\xd4\xbf\xf9\xd1\x9e"
      "\xcc\x17\xc9\x94\x40\x4f\x44\xfc\xfd\xa5\x5b\xff\xbb\x3f\x5e\xa9\xcc\x0f"
      "\xd5\xea\x3f\x59\xad\xaf\xfc\xbf\x51\x3f\xdc\x89\xf6\x03\xbb\xd5\xcc\xd3"
      "\x66\x1e\x03\x00\xe9\xb5\xf2\xec\xc1\x44\xf3\x76\x98\x71\xbb\x6e\x44\x6f"
      "\xa3\xb8\x29\x7e\x57\x63\x6e\xf2\x64\xb2\x0f\xa1\x6f\x25\xb3\xe1\x58\x85"
      "\xcc\x3e\x1d\xbb\xb0\xfc\x30\x22\xce\xb7\xea\x7f\xa6\x71\xbd\xf3\xfa\x9e"
      "\x8f\xbe\x95\xdc\x96\xf8\xe7\x1a\xf7\x99\xfa\x2a\x92\xf6\x76\x25\xd7\x4d"
      "\x3f\xc8\xf8\xbd\xab\xaf\xbd\xb0\x2e\xfe\x0f\xd7\xc5\xbf\xf8\xdc\xff\x15"
      "\x48\x87\xc7\x37\x22\x62\xb0\x55\xfe\x65\x93\x9c\x8e\xd5\xfc\xdb\x38\xfe"
      "\xf4\xef\xd3\xbe\xcd\x8f\x6e\xd4\x93\xb6\x55\xfc\xe6\xf8\x97\x6b\x33\xfe"
      "\x5d\xda\xb0\xa6\xe5\xb6\x31\xfe\xfa\xf2\x3f\x3e\x68\x1b\xff\x61\xc4\xc5"
      "\xd5\xf8\xb5\x1e\xad\x8d\x3f\x5d\x8d\xf8\x99\x16\xf1\x6b\x6d\xbb\xba\xcb"
      "\x3e\x3e\xfd\xd3\x1f\x7f\xd0\xee\xb1\xea\x2b\xf5\xf5\xb4\x1a\xff\x9a\x6a"
      "\xa5\x7c\x65\x66\x2e\x5f\x5e\x5c\xba\x96\xfc\x8e\xdc\x54\x61\x76\x68\xf4"
      "\xfa\xd8\xd8\xe8\xe0\xc8\xf0\x58\x3e\x99\xa3\xce\x37\x67\xaa\xb7\xfa\xe5"
      "\xf9\x37\x9f\x6c\xd7\xff\xbe\x36\xf1\xeb\xfd\x7d\xb7\x65\xff\x6b\x75\x3f"
      "\xd9\x55\xef\xb7\xdf\xb3\x5e\x8b\xff\xe3\x2b\xad\xdf\xff\x73\xc9\x7d\xeb"
      "\xff\x7f\xed\x53\xe0\xa7\xad\x57\xf9\xe5\xe6\x8a\x4f\x87\xdf\xff\xf3\x76"
      "\xf1\x27\xdb\xf4\x3f\xbb\x4d\xfc\x5a\xdd\xc8\xb6\x3d\x5b\x53\xfe\xef\x6f"
      "\x9d\x28\x00\x00\x2f\x90\xf2\xe2\xd2\xf4\x78\xb1\x58\x98\xdf\x6b\xa1\x27"
      "\x22\x9e\xe3\xe5\x3b\x14\xde\x3b\xb0\x35\x1f\xc5\x42\xef\x8b\xd1\x0c\x85"
      "\x34\x14\x76\x1a\x39\xda\x7f\xdf\x04\x8e\x86\xb5\xa4\xef\x74\x4b\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x80\xdd\x6a\x7b\x18\x70\xf3\xe4\xd6\x7d\x38"
      "\x9c\xb8\xc3\x5d\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x38\x16\xbe\x09\x00\x00\xff\xff\x59"
      "\xf8\xcd\xb2",
      1281);
  syz_mount_image(/*fs=*/0x200000000180, /*dir=*/0x200000000000,
                  /*flags=MS_NODIRATIME*/ 0x800, /*opts=*/0x2000000002c0,
                  /*chdir=*/1, /*size=*/0x501, /*img=*/0x200000000e00);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {73 79 73 66 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x200000000000, "./sys\000", 6);
  memcpy((void*)0x200000000040, "sysfs\000", 6);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x200000000000ul,
          /*type=*/0x200000000040ul, /*flags=*/0ul, /*data=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 62 75 73 2f 70 63 69 2f 64 65 76 69 63 65
  //      73 2f 30 30 30 30 3a 30 30 3a 30 33 2e 30 2f 63 6f 6e 66 69 67 00}
  //      (length 0x2a)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x200000000080, "./sys/bus/pci/devices/0000:00:03.0/config\000",
         42);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200000000080ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  pwrite64 arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {02 00} (length 0x2)
  //    }
  //    count: len = 0x2 (8 bytes)
  //    pos: intptr = 0x4 (8 bytes)
  //  ]
  memcpy((void*)0x2000000000c0, "\x02\x00", 2);
  syscall(__NR_pwrite64, /*fd=*/r[0], /*buf=*/0x2000000000c0ul, /*count=*/2ul,
          /*pos=*/4ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*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=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}