// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.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/futex.h>

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;                                                                        \
  })

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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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;
}

#define SIZEOF_IO_URING_SQE 64
#define SIZEOF_IO_URING_CQE 16
#define SQ_HEAD_OFFSET 0
#define SQ_TAIL_OFFSET 64
#define SQ_RING_MASK_OFFSET 256
#define SQ_RING_ENTRIES_OFFSET 264
#define SQ_FLAGS_OFFSET 276
#define SQ_DROPPED_OFFSET 272
#define CQ_HEAD_OFFSET 128
#define CQ_TAIL_OFFSET 192
#define CQ_RING_MASK_OFFSET 260
#define CQ_RING_ENTRIES_OFFSET 268
#define CQ_RING_OVERFLOW_OFFSET 284
#define CQ_FLAGS_OFFSET 280
#define CQ_CQES_OFFSET 320

static long syz_io_uring_submit(volatile long a0, volatile long a1,
                                volatile long a2, volatile long a3)
{
  char* ring_ptr = (char*)a0;
  char* sqes_ptr = (char*)a1;
  char* sqe = (char*)a2;
  uint32_t sqes_index = (uint32_t)a3;
  uint32_t sq_ring_entries = *(uint32_t*)(ring_ptr + SQ_RING_ENTRIES_OFFSET);
  uint32_t cq_ring_entries = *(uint32_t*)(ring_ptr + CQ_RING_ENTRIES_OFFSET);
  uint32_t sq_array_off =
      (CQ_CQES_OFFSET + cq_ring_entries * SIZEOF_IO_URING_CQE + 63) & ~63;
  if (sq_ring_entries)
    sqes_index %= sq_ring_entries;
  char* sqe_dest = sqes_ptr + sqes_index * SIZEOF_IO_URING_SQE;
  memcpy(sqe_dest, sqe, SIZEOF_IO_URING_SQE);
  uint32_t sq_ring_mask = *(uint32_t*)(ring_ptr + SQ_RING_MASK_OFFSET);
  uint32_t* sq_tail_ptr = (uint32_t*)(ring_ptr + SQ_TAIL_OFFSET);
  uint32_t sq_tail = *sq_tail_ptr & sq_ring_mask;
  uint32_t sq_tail_next = *sq_tail_ptr + 1;
  uint32_t* sq_array = (uint32_t*)(ring_ptr + sq_array_off);
  *(sq_array + sq_tail) = sqes_index;
  __atomic_store_n(sq_tail_ptr, sq_tail_next, __ATOMIC_RELEASE);
  return 0;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

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 setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data))
      printf("write to %s failed: %s\n", files[i].name, strerror(errno));
  }
}

#define USLEEP_FORKED_CHILD (3 * 50 * 1000)

static long handle_clone_ret(long ret)
{
  if (ret != 0) {
    __atomic_store_n(&clone_ongoing, 0, __ATOMIC_RELAXED);
    return ret;
  }
  usleep(USLEEP_FORKED_CHILD);
  syscall(__NR_exit, 0);
  while (1) {
  }
}

static long syz_clone(volatile long flags, volatile long stack,
                      volatile long stack_len, volatile long ptid,
                      volatile long ctid, volatile long tls)
{
  long sp = (stack + stack_len) & ~15;
  __atomic_store_n(&clone_ongoing, 1, __ATOMIC_RELAXED);
  long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls);
  return handle_clone_ret(ret);
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  int i, call, thread;
  for (call = 0; call < 37; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[7] = {0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0x0,
                 0x0};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    res = syscall(__NR_socket, 0xaul, 2ul, 0x88);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    syscall(__NR_ioctl, r[0], 0x8933, 0ul);
    break;
  case 2:
    NONFAILING(*(uint64_t*)0x2000a200 = 0);
    NONFAILING(*(uint32_t*)0x2000a208 = 0);
    NONFAILING(*(uint64_t*)0x2000a210 = 0);
    NONFAILING(*(uint64_t*)0x2000a218 = 0);
    NONFAILING(*(uint64_t*)0x2000a220 = 0);
    NONFAILING(*(uint64_t*)0x2000a228 = 0);
    NONFAILING(*(uint32_t*)0x2000a230 = 0);
    NONFAILING(*(uint32_t*)0x2000a238 = 0);
    NONFAILING(*(uint64_t*)0x2000a240 = 0);
    NONFAILING(*(uint32_t*)0x2000a248 = 0);
    NONFAILING(*(uint64_t*)0x2000a250 = 0x20000180);
    NONFAILING(*(uint64_t*)0x20000180 = 0x20000240);
    NONFAILING(*(uint64_t*)0x20000188 = 0);
    NONFAILING(*(uint64_t*)0x2000a258 = 1);
    NONFAILING(*(uint64_t*)0x2000a260 = 0);
    NONFAILING(*(uint64_t*)0x2000a268 = 0);
    NONFAILING(*(uint32_t*)0x2000a270 = 0);
    NONFAILING(*(uint32_t*)0x2000a278 = 0);
    syscall(__NR_sendmmsg, -1, 0x2000a200ul, 2ul, 0ul);
    break;
  case 3:
    syscall(__NR_getsockopt, -1, 0x29, 0x15, 0ul, 0ul);
    break;
  case 4:
    syscall(__NR_ioctl, -1, 0x8933, 0ul);
    break;
  case 5:
    res = syscall(__NR_socket, 0xaul, 1ul, 0);
    if (res != -1)
      r[1] = res;
    break;
  case 6:
    NONFAILING(*(uint16_t*)0x20000000 = 0xa);
    NONFAILING(*(uint16_t*)0x20000002 = htobe16(0));
    NONFAILING(*(uint32_t*)0x20000004 = htobe32(0));
    NONFAILING(memcpy(
        (void*)0x20000008,
        " \001\000\000\000\000\000\000\000\000\000\000\000\000\000\001", 16));
    NONFAILING(*(uint32_t*)0x20000018 = 0x40000000);
    syscall(__NR_connect, r[1], 0x20000000ul, 0x1cul);
    break;
  case 7:
    NONFAILING(*(uint32_t*)0x20000b80 = 1);
    NONFAILING(*(uint32_t*)0x20000b84 = 0x80);
    NONFAILING(*(uint8_t*)0x20000b88 = 0x7a);
    NONFAILING(*(uint8_t*)0x20000b89 = 0x80);
    NONFAILING(*(uint8_t*)0x20000b8a = 0);
    NONFAILING(*(uint8_t*)0x20000b8b = 0);
    NONFAILING(*(uint32_t*)0x20000b8c = 0);
    NONFAILING(*(uint64_t*)0x20000b90 = 4);
    NONFAILING(*(uint64_t*)0x20000b98 = 0);
    NONFAILING(*(uint64_t*)0x20000ba0 = 0);
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 0, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 1, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 2, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 4, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 1, 5, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 6, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 7, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 8, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 9, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 10, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 11, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 12, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 13, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 14, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 15, 2));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 17, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 18, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 19, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 20, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 21, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 22, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 23, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 24, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 25, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 26, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 27, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 28, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 29, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 30, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 31, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 32, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 33, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 34, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 35, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 36, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 37, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 38, 26));
    NONFAILING(*(uint32_t*)0x20000bb0 = 0x10000);
    NONFAILING(*(uint32_t*)0x20000bb4 = 0);
    NONFAILING(*(uint64_t*)0x20000bb8 = 4);
    NONFAILING(*(uint64_t*)0x20000bc0 = 0x8b1fbbe);
    NONFAILING(*(uint64_t*)0x20000bc8 = 0x4000);
    NONFAILING(*(uint64_t*)0x20000bd0 = 0);
    NONFAILING(*(uint32_t*)0x20000bd8 = 0x8000);
    NONFAILING(*(uint32_t*)0x20000bdc = 9);
    NONFAILING(*(uint64_t*)0x20000be0 = 0);
    NONFAILING(*(uint32_t*)0x20000be8 = 0);
    NONFAILING(*(uint16_t*)0x20000bec = 0);
    NONFAILING(*(uint16_t*)0x20000bee = 0);
    NONFAILING(*(uint32_t*)0x20000bf0 = -1);
    NONFAILING(*(uint32_t*)0x20000bf4 = 0);
    NONFAILING(*(uint64_t*)0x20000bf8 = 8);
    syscall(__NR_perf_event_open, 0x20000b80ul, 0, 0ul, -1, 0ul);
    break;
  case 8:
    syscall(__NR_perf_event_open, 0ul, 0, 6ul, -1, 0ul);
    break;
  case 9:
    syscall(__NR_socket, 0x11ul, 0ul, 0x300);
    break;
  case 10:
    NONFAILING(syz_io_uring_submit(0, 0, 0, 0));
    break;
  case 11:
    NONFAILING(memcpy((void*)0x20000040, "/dev/loop-control\000", 18));
    res =
        syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000040ul, 0x8100ul, 0ul);
    if (res != -1)
      r[2] = res;
    break;
  case 12:
    syscall(__NR_ioctl, r[2], 0x4c80, 0ul);
    break;
  case 13:
    syscall(__NR_dup2, -1, -1);
    break;
  case 14:
    syscall(__NR_ioctl, -1, 0x4c80, 0ul);
    break;
  case 15:
    syscall(__NR_perf_event_open, 0ul, 0, 0ul, -1, 0ul);
    break;
  case 16:
    NONFAILING(*(uint32_t*)0x20000b80 = 1);
    NONFAILING(*(uint32_t*)0x20000b84 = 0x80);
    NONFAILING(*(uint8_t*)0x20000b88 = 0);
    NONFAILING(*(uint8_t*)0x20000b89 = 0);
    NONFAILING(*(uint8_t*)0x20000b8a = 0);
    NONFAILING(*(uint8_t*)0x20000b8b = 0);
    NONFAILING(*(uint32_t*)0x20000b8c = 0);
    NONFAILING(*(uint64_t*)0x20000b90 = 4);
    NONFAILING(*(uint64_t*)0x20000b98 = 0);
    NONFAILING(*(uint64_t*)0x20000ba0 = 0);
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 0, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 1, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 2, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 3, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 4, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 1, 5, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 6, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 7, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 8, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 9, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 10, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 11, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 12, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 13, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 14, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 15, 2));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 17, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 18, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 19, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 20, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 21, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 22, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 23, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 24, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 25, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 26, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 27, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 28, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 29, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 30, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 31, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 32, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 33, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 34, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 35, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 36, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 37, 1));
    NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000ba8, 0, 38, 26));
    NONFAILING(*(uint32_t*)0x20000bb0 = 0);
    NONFAILING(*(uint32_t*)0x20000bb4 = 0);
    NONFAILING(*(uint64_t*)0x20000bb8 = 0);
    NONFAILING(*(uint64_t*)0x20000bc0 = 0);
    NONFAILING(*(uint64_t*)0x20000bc8 = 0);
    NONFAILING(*(uint64_t*)0x20000bd0 = 0);
    NONFAILING(*(uint32_t*)0x20000bd8 = 0);
    NONFAILING(*(uint32_t*)0x20000bdc = 0);
    NONFAILING(*(uint64_t*)0x20000be0 = 0);
    NONFAILING(*(uint32_t*)0x20000be8 = 0);
    NONFAILING(*(uint16_t*)0x20000bec = 0);
    NONFAILING(*(uint16_t*)0x20000bee = 0);
    NONFAILING(*(uint32_t*)0x20000bf0 = 0);
    NONFAILING(*(uint32_t*)0x20000bf4 = 0);
    NONFAILING(*(uint64_t*)0x20000bf8 = 0);
    res = syscall(__NR_perf_event_open, 0x20000b80ul, 0, 0ul, -1, 0ul);
    if (res != -1)
      r[3] = res;
    break;
  case 17:
    syscall(__NR_fcntl, r[3], 8ul, 0);
    break;
  case 18:
    syscall(__NR_perf_event_open, 0ul, 0, 0ul, -1, 0ul);
    break;
  case 19:
    syscall(__NR_perf_event_open, 0ul, 0, 0ul, -1, 0ul);
    break;
  case 20:
    res = syscall(__NR_openat, 0xffffffffffffff9cul, 0ul, 0ul, 0ul);
    if (res != -1)
      r[4] = res;
    break;
  case 21:
    NONFAILING(syz_clone(0x42800000, 0, 0, 0, 0, 0));
    break;
  case 22:
    syscall(__NR_perf_event_open, 0ul, 0, 5ul, r[4], 2ul);
    break;
  case 23:
    NONFAILING(syz_clone(0, 0, 0, 0, 0, 0));
    break;
  case 24:
    res = syscall(__NR_ioctl, -1, 0x8903, 0x20000000ul);
    if (res != -1)
      NONFAILING(r[5] = *(uint32_t*)0x20000000);
    break;
  case 25:
    NONFAILING(*(uint64_t*)0x20000200 = 9);
    syscall(__NR_migrate_pages, r[5], 2ul, 0ul, 0x20000200ul);
    break;
  case 26:
    NONFAILING(*(uint32_t*)0x20000040 = 1);
    NONFAILING(*(uint32_t*)0x20000044 = 1);
    NONFAILING(*(uint32_t*)0x20000048 = 0x18);
    NONFAILING(*(uint32_t*)0x2000004c = -1);
    NONFAILING(memcpy((void*)0x20000058, "./file0\000", 8));
    syscall(__NR_ioctl, -1, 0xc0189371, 0x20000040ul);
    break;
  case 27:
    NONFAILING(syz_clone(0, 0, 0, 0, 0, 0));
    break;
  case 28:
    syscall(__NR_socket, 2ul, 1ul, 0);
    break;
  case 29:
    syscall(__NR_openat, 0xffffffffffffff9cul, 0ul, 0ul, 0ul);
    break;
  case 30:
    NONFAILING(syz_clone(0x42800000, 0, 0, 0, 0, 0));
    break;
  case 31:
    NONFAILING(syz_clone(0, 0, 0, 0, 0, 0));
    break;
  case 32:
    syscall(__NR_keyctl, 0x15ul, 0, 0ul, 0ul, 0);
    break;
  case 33:
    syscall(__NR_add_key, 0ul, 0ul, 0ul, 0ul, 0);
    break;
  case 34:
    syscall(__NR_openat, 0xffffffffffffff9cul, 0ul, 0ul, 0ul);
    break;
  case 35:
    res = -1;
    NONFAILING(res = syz_clone(0, 0, 0, 0x20001740, 0, 0));
    if (res != -1)
      r[6] = res;
    break;
  case 36:
    syscall(__NR_perf_event_open, 0ul, r[6], 0xeul, -1, 1ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  setup_sysctl();
  install_segv_handler();
  for (procid = 0; procid < 8; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}