// https://syzkaller.appspot.com/bug?id=5ac24a3c5711973c287882c9539f095ac817a309
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <sys/types.h>

#include <dirent.h>
#include <errno.h>
#include <pthread.h>
#include <pwd.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/endian.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.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 (sig == SIGBUS)
    valid = 1;
  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_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 kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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 reset_flags(const char* filename)
{
  struct stat st;
  if (lstat(filename, &st))
    exit(1);
  st.st_flags &= ~(SF_NOUNLINK | UF_NOUNLINK | SF_IMMUTABLE | UF_IMMUTABLE |
                   SF_APPEND | UF_APPEND);
  if (lchflags(filename, st.st_flags))
    exit(1);
}
static void __attribute__((noinline)) remove_dir(const char* dir)
{
  DIR* dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EACCES) {
      if (rmdir(dir))
        exit(1);
      return;
    }
    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);
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    if (unlink(filename)) {
      if (errno == EPERM) {
        reset_flags(filename);
        reset_flags(dir);
        if (unlink(filename) == 0)
          continue;
      }
      exit(1);
    }
  }
  closedir(dp);
  while (rmdir(dir)) {
    if (errno == EPERM) {
      reset_flags(dir);
      if (rmdir(dir) == 0)
        break;
    }
    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);
}

typedef struct {
  pthread_mutex_t mu;
  pthread_cond_t cv;
  int state;
} event_t;

static void event_init(event_t* ev)
{
  if (pthread_mutex_init(&ev->mu, 0))
    exit(1);
  if (pthread_cond_init(&ev->cv, 0))
    exit(1);
  ev->state = 0;
}

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

static void event_set(event_t* ev)
{
  pthread_mutex_lock(&ev->mu);
  if (ev->state)
    exit(1);
  ev->state = 1;
  pthread_mutex_unlock(&ev->mu);
  pthread_cond_broadcast(&ev->cv);
}

static void event_wait(event_t* ev)
{
  pthread_mutex_lock(&ev->mu);
  while (!ev->state)
    pthread_cond_wait(&ev->cv, &ev->mu);
  pthread_mutex_unlock(&ev->mu);
}

static int event_isset(event_t* ev)
{
  pthread_mutex_lock(&ev->mu);
  int res = ev->state;
  pthread_mutex_unlock(&ev->mu);
  return res;
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  pthread_mutex_lock(&ev->mu);
  for (;;) {
    if (ev->state)
      break;
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
    now = current_time_ms();
    if (now - start > timeout)
      break;
  }
  int res = ev->state;
  pthread_mutex_unlock(&ev->mu);
  return res;
}

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)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 23; 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 0

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);
      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;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[6] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    //  socket arguments: [
    //    domain: socket_domain = 0x11 (8 bytes)
    //    type: socket_type = 0x3 (8 bytes)
    //    proto: int8 = 0x0 (1 bytes)
    //  ]
    //  returns sock
    syscall(SYS_socket, /*domain=AF_APPLETALK|AF_UNIX*/ 0x11ul,
            /*type=SOCK_RAW*/ 3ul, /*proto=*/0);
    break;
  case 1:
    //  sendmsg arguments: [
    //    fd: sock (resource)
    //    msg: ptr[in, send_msghdr] {
    //      send_msghdr {
    //        msg_name: nil
    //        msg_namelen: len = 0x0 (4 bytes)
    //        pad = 0x0 (4 bytes)
    //        msg_iov: ptr[in, array[iovec_in]] {
    //          array[iovec_in] {
    //            iovec_in {
    //              addr: ptr[in, buffer] {
    //                buffer: {} (length 0x0)
    //              }
    //              len: len = 0x0 (8 bytes)
    //            }
    //          }
    //        }
    //        msg_iovlen: len = 0x1 (8 bytes)
    //        msg_control: nil
    //        msg_controllen: bytesize = 0x0 (8 bytes)
    //        msg_flags: const = 0x0 (4 bytes)
    //        pad = 0x0 (4 bytes)
    //      }
    //    }
    //    f: send_flags = 0x0 (8 bytes)
    //  ]
    NONFAILING(*(uint64_t*)0x2000000005c0 = 0);
    NONFAILING(*(uint32_t*)0x2000000005c8 = 0);
    NONFAILING(*(uint64_t*)0x2000000005d0 = 0x200000000380);
    NONFAILING(*(uint64_t*)0x200000000380 = 0x200000000040);
    NONFAILING(*(uint64_t*)0x200000000388 = 0);
    NONFAILING(*(uint64_t*)0x2000000005d8 = 1);
    NONFAILING(*(uint64_t*)0x2000000005e0 = 0);
    NONFAILING(*(uint64_t*)0x2000000005e8 = 0);
    NONFAILING(*(uint32_t*)0x2000000005f0 = 0);
    syscall(SYS_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0x2000000005c0ul,
            /*f=*/0ul);
    break;
  case 2:
    //  open$dir arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
    //    }
    //    flags: open_flags = 0x40000400000002c2 (8 bytes)
    //    mode: open_mode = 0x0 (8 bytes)
    //  ]
    //  returns fd_dir
    NONFAILING(memcpy((void*)0x200000000840, "./file1\000", 8));
    syscall(SYS_open, /*file=*/0x200000000840ul,
            /*flags=O_SYNC|O_CREAT|FASYNC|O_RDWR|0x4000040000000000*/
            0x40000400000002c2ul, /*mode=*/0ul);
    break;
  case 3:
    //  freebsd11_mknod arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    mod: mknod_mode = 0x1000 (8 bytes)
    //    dev: int32 = 0x0 (4 bytes)
    //  ]
    NONFAILING(memcpy((void*)0x200000000040, "./file0\000", 8));
    syscall(SYS_freebsd11_mknod, /*file=*/0x200000000040ul,
            /*mod=S_IFIFO*/ 0x1000ul, /*dev=*/0);
    break;
  case 4:
    //  socket$inet6_sctp arguments: [
    //    domain: const = 0x1c (8 bytes)
    //    type: sctp_socket_type = 0x5 (8 bytes)
    //    proto: const = 0x84 (1 bytes)
    //  ]
    //  returns sock_sctp6
    syscall(SYS_socket, /*domain=*/0x1cul, /*type=SOCK_SEQPACKET*/ 5ul,
            /*proto=*/0x84);
    break;
  case 5:
    //  open$dir arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 30 00} (length 0x8)
    //    }
    //    flags: open_flags = 0x1 (8 bytes)
    //    mode: open_mode = 0x0 (8 bytes)
    //  ]
    //  returns fd_dir
    NONFAILING(memcpy((void*)0x200000000000, "./file0\000", 8));
    res = syscall(SYS_open, /*file=*/0x200000000000ul, /*flags=O_WRONLY*/ 1ul,
                  /*mode=*/0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 6:
    //  close arguments: [
    //    fd: fd (resource)
    //  ]
    syscall(SYS_close, /*fd=*/(intptr_t)-1);
    break;
  case 7:
    //  writev arguments: [
    //    fd: fd (resource)
    //    vec: nil
    //    vlen: len = 0x0 (8 bytes)
    //  ]
    syscall(SYS_writev, /*fd=*/r[0], /*vec=*/0ul, /*vlen=*/0ul);
    break;
  case 8:
    //  open arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
    //    }
    //    flags: open_flags = 0x4 (8 bytes)
    //    mode: open_mode = 0x102 (8 bytes)
    //  ]
    //  returns fd
    NONFAILING(memcpy((void*)0x200000000480, "./file1\000", 8));
    syscall(SYS_open, /*file=*/0x200000000480ul, /*flags=O_NONBLOCK*/ 4ul,
            /*mode=S_IWOTH|S_IRUSR*/ 0x102ul);
    break;
  case 9:
    //  mprotect arguments: [
    //    addr: VMA[0x800000]
    //    len: len = 0x800000 (8 bytes)
    //    prot: mmap_prot = 0x5 (8 bytes)
    //  ]
    syscall(SYS_mprotect, /*addr=*/0x200000000000ul, /*len=*/0x800000ul,
            /*prot=PROT_READ|PROT_EXEC*/ 5ul);
    break;
  case 10:
    //  truncate arguments: [
    //    file: ptr[in, buffer] {
    //      buffer: {2e 2f 66 69 6c 65 31 00} (length 0x8)
    //    }
    //    len: intptr = 0x1 (8 bytes)
    //  ]
    NONFAILING(memcpy((void*)0x200000000440, "./file1\000", 8));
    syscall(SYS_truncate, /*file=*/0x200000000440ul, /*len=*/1ul);
    break;
  case 11:
    //  mount arguments: [
    //    type: nil
    //    path: nil
    //    flags: mount_flags = 0x0 (8 bytes)
    //    data: nil
    //  ]
    syscall(SYS_mount, /*type=*/0ul, /*path=*/0ul, /*flags=*/0ul, /*data=*/0ul);
    break;
  case 12:
    //  freebsd10_pipe arguments: [
    //    pipefd: ptr[out, pipefd] {
    //      pipefd {
    //        rfd: fd (resource)
    //        wfd: fd (resource)
    //      }
    //    }
    //  ]
    res = syscall(SYS_freebsd10_pipe, /*pipefd=*/0x200000000040ul);
    if (res != -1)
      NONFAILING(r[1] = *(uint32_t*)0x200000000044);
    break;
  case 13:
    //  mprotect arguments: [
    //    addr: VMA[0x800000]
    //    len: len = 0x800000 (8 bytes)
    //    prot: mmap_prot = 0x1 (8 bytes)
    //  ]
    syscall(SYS_mprotect, /*addr=*/0x200000000000ul, /*len=*/0x800000ul,
            /*prot=PROT_READ*/ 1ul);
    break;
  case 14:
    //  socket$inet6_udp arguments: [
    //    domain: const = 0x1c (8 bytes)
    //    type: const = 0x2 (8 bytes)
    //    proto: const = 0x0 (1 bytes)
    //  ]
    //  returns sock_udp6
    res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=*/2ul, /*proto=*/0);
    if (res != -1)
      r[2] = res;
    break;
  case 15:
    //  setsockopt$inet6_IPV6_DSTOPTS arguments: [
    //    fd: sock_in6 (resource)
    //    level: const = 0x29 (4 bytes)
    //    optname: const = 0x32 (4 bytes)
    //    optval: ptr[inout, array[ANYUNION]] {
    //      array[ANYUNION] {
    //      }
    //    }
    //    optlen: len = 0x8 (8 bytes)
    //  ]
    syscall(SYS_setsockopt, /*fd=*/r[2], /*level=*/0x29, /*optname=*/0x32,
            /*optval=*/0x200000000300ul, /*optlen=*/8ul);
    break;
  case 16:
    //  getsockopt$inet6_buf arguments: [
    //    fd: sock_in6 (resource)
    //    level: const = 0x29 (4 bytes)
    //    optname: inet6_option_types_buf = 0x32 (4 bytes)
    //    optval: ptr[out, buffer] {
    //      buffer: (DirOut)
    //    }
    //    optlen: ptr[inout, len] {
    //      len = 0x1000 (4 bytes)
    //    }
    //  ]
    NONFAILING(*(uint32_t*)0x200000000000 = 0x1000);
    syscall(SYS_getsockopt, /*fd=*/r[2], /*level=*/0x29,
            /*optname=IPV6_DSTOPTS*/ 0x32, /*optval=*/0x200000001040ul,
            /*optlen=*/0x200000000000ul);
    break;
  case 17:
    //  aio_waitcomplete arguments: [
    //    iocbp: ptr[out, ptr[in, aiocb]] {
    //      ptr[in, aiocb] {
    //        aiocb {
    //          aio_fildes: fd (resource)
    //          pad = 0x0 (4 bytes)
    //          aio_offset: int64 = 0xffffffffffffffff (8 bytes)
    //          aio_buf: nil
    //          aio_nbytes: len = 0x0 (8 bytes)
    //          spare: array[int32] {
    //            int32 = 0x1 (4 bytes)
    //            int32 = 0xe7 (4 bytes)
    //          }
    //          spare2: intptr = 0x3 (8 bytes)
    //          aio_lio_opcode: lio_opcodes = 0xf470d7943015b589 (4 bytes)
    //          aio_reqprio: int32 = 0x0 (4 bytes)
    //          aiocb_private: aiocb_private {
    //            status: intptr = 0x2 (8 bytes)
    //            error: intptr = 0x7 (8 bytes)
    //            kernelinfo: ptr[in, buffer] {
    //              buffer: {6d 84 e3 85 20 18 fe 29 3d 32 f2 24 bc 15 0d ae 4e
    //              5f fb 70 6b c2 5e f2 ae 80 8b 6d 11 73 93 e2 d6 91 64 6b 89
    //              56 e9 1f e6 18 18 eb e0 6a 39 5d da 2f 2e c0 b9 79 bf a3 54
    //              59 e5 f6 27 a7 08 e8 2c a0 a7 c8 ae 18 ac ab 2e 1f 3f 57 fe
    //              d1 ee 7d 37 ac 03 cc b6 26 0b 99 a1 97 1e 7d 3e fb 76 af 1c
    //              15 b5 1d 03 a8 f2 ed 85 94 09 fd bc 92 c1 e5 4b 58 4a 5e c5
    //              62 ae b1 79 a1 4f 17 34 4f 77 e1 6b c9 68 55 08 6b c6 15 30
    //              26 eb 34 62 ed e9 a6 ae ef 78 bd 5f c6 16 d1 29 e1 7a 81 37
    //              26 f4 11 f2 d3} (length 0xa2)
    //            }
    //          }
    //          aio_sigevent: sigevent {
    //            notify: sigev_notify = 0x0 (4 bytes)
    //            signo: int32 = 0x1a (4 bytes)
    //            val: union sigval {
    //              sigval_int: int32 = 0xa0a0 (4 bytes)
    //            }
    //            u: union sigevent_u {
    //              spare: array[intptr] {
    //                intptr = 0x31 (8 bytes)
    //                intptr = 0x2 (8 bytes)
    //                intptr = 0x80000001 (8 bytes)
    //                intptr = 0x7 (8 bytes)
    //                intptr = 0x5 (8 bytes)
    //                intptr = 0x0 (8 bytes)
    //                intptr = 0x1 (8 bytes)
    //                intptr = 0x3 (8 bytes)
    //              }
    //            }
    //          }
    //        }
    //      }
    //    }
    //    timeout: nil
    //  ]
    NONFAILING(*(uint64_t*)0x200000000340 = 0x200000000280);
    NONFAILING(*(uint32_t*)0x200000000280 = r[1]);
    NONFAILING(*(uint64_t*)0x200000000288 = -1);
    NONFAILING(*(uint64_t*)0x200000000290 = 0);
    NONFAILING(*(uint64_t*)0x200000000298 = 0);
    NONFAILING(*(uint32_t*)0x2000000002a0 = 1);
    NONFAILING(*(uint32_t*)0x2000000002a4 = 0xe7);
    NONFAILING(*(uint64_t*)0x2000000002a8 = 3);
    NONFAILING(*(uint32_t*)0x2000000002b0 = 0x3015b589);
    NONFAILING(*(uint32_t*)0x2000000002b4 = 0);
    NONFAILING(*(uint64_t*)0x2000000002b8 = 2);
    NONFAILING(*(uint64_t*)0x2000000002c0 = 7);
    NONFAILING(*(uint64_t*)0x2000000002c8 = 0x2000000001c0);
    NONFAILING(memcpy(
        (void*)0x2000000001c0,
        "\x6d\x84\xe3\x85\x20\x18\xfe\x29\x3d\x32\xf2\x24\xbc\x15\x0d\xae\x4e"
        "\x5f\xfb\x70\x6b\xc2\x5e\xf2\xae\x80\x8b\x6d\x11\x73\x93\xe2\xd6\x91"
        "\x64\x6b\x89\x56\xe9\x1f\xe6\x18\x18\xeb\xe0\x6a\x39\x5d\xda\x2f\x2e"
        "\xc0\xb9\x79\xbf\xa3\x54\x59\xe5\xf6\x27\xa7\x08\xe8\x2c\xa0\xa7\xc8"
        "\xae\x18\xac\xab\x2e\x1f\x3f\x57\xfe\xd1\xee\x7d\x37\xac\x03\xcc\xb6"
        "\x26\x0b\x99\xa1\x97\x1e\x7d\x3e\xfb\x76\xaf\x1c\x15\xb5\x1d\x03\xa8"
        "\xf2\xed\x85\x94\x09\xfd\xbc\x92\xc1\xe5\x4b\x58\x4a\x5e\xc5\x62\xae"
        "\xb1\x79\xa1\x4f\x17\x34\x4f\x77\xe1\x6b\xc9\x68\x55\x08\x6b\xc6\x15"
        "\x30\x26\xeb\x34\x62\xed\xe9\xa6\xae\xef\x78\xbd\x5f\xc6\x16\xd1\x29"
        "\xe1\x7a\x81\x37\x26\xf4\x11\xf2\xd3",
        162));
    NONFAILING(*(uint32_t*)0x2000000002d0 = 0);
    NONFAILING(*(uint32_t*)0x2000000002d4 = 0x1a);
    NONFAILING(*(uint32_t*)0x2000000002d8 = 0xa0a0);
    NONFAILING(*(uint64_t*)0x2000000002e0 = 0x31);
    NONFAILING(*(uint64_t*)0x2000000002e8 = 2);
    NONFAILING(*(uint64_t*)0x2000000002f0 = 0x80000001);
    NONFAILING(*(uint64_t*)0x2000000002f8 = 7);
    NONFAILING(*(uint64_t*)0x200000000300 = 5);
    NONFAILING(*(uint64_t*)0x200000000308 = 0);
    NONFAILING(*(uint64_t*)0x200000000310 = 1);
    NONFAILING(*(uint64_t*)0x200000000318 = 3);
    syscall(SYS_aio_waitcomplete, /*iocbp=*/0x200000000340ul, /*timeout=*/0ul);
    break;
  case 18:
    //  openat$crypto arguments: [
    //    fd: const = 0xffffffffffffff9c (8 bytes)
    //    file: nil
    //    flags: open_flags = 0x0 (8 bytes)
    //    mode: const = 0x0 (8 bytes)
    //  ]
    //  returns fd_crypto
    res = syscall(SYS_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0ul,
                  /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[3] = res;
    break;
  case 19:
    //  openat$crypto arguments: [
    //    fd: const = 0xffffffffffffff9c (8 bytes)
    //    file: ptr[in, buffer] {
    //      buffer: {2f 64 65 76 2f 63 72 79 70 74 6f 00} (length 0xc)
    //    }
    //    flags: open_flags = 0x8 (8 bytes)
    //    mode: const = 0x0 (8 bytes)
    //  ]
    //  returns fd_crypto
    NONFAILING(memcpy((void*)0x200000000240, "/dev/crypto\000", 12));
    res = syscall(SYS_openat, /*fd=*/0xffffffffffffff9cul,
                  /*file=*/0x200000000240ul, /*flags=O_APPEND*/ 8ul,
                  /*mode=*/0ul);
    if (res != -1)
      r[4] = res;
    break;
  case 20:
    //  ioctl$CIOCGSESSION2 arguments: [
    //    fd: fd_crypto (resource)
    //    cmd: const = 0xc040636a (8 bytes)
    //    arg: ptr[inout, session2_op] {
    //      session2_op {
    //        cipher: cipher_flags = 0x19 (4 bytes)
    //        mac: mac_flags = 0x0 (4 bytes)
    //        keylen: bytesize = 0x10 (4 bytes)
    //        pad = 0x0 (4 bytes)
    //        key: ptr[in, buffer] {
    //          buffer: {3c 9e 89 52 6b 1f 00 b0 7f 8a ee 18 e5 aa 35 05}
    //          (length 0x10)
    //        }
    //        mackeylen: bytesize = 0x0 (4 bytes)
    //        pad = 0x0 (4 bytes)
    //        mackey: nil
    //        ses: int32 = 0x0 (4 bytes)
    //        crid: int32 = 0xfdffffff (4 bytes)
    //        pad: array[int32] {
    //          int32 = 0x0 (4 bytes)
    //          int32 = 0x0 (4 bytes)
    //          int32 = 0x3 (4 bytes)
    //          int32 = 0x80000001 (4 bytes)
    //        }
    //      }
    //    }
    //  ]
    NONFAILING(*(uint32_t*)0x200000000440 = 0x19);
    NONFAILING(*(uint32_t*)0x200000000444 = 0);
    NONFAILING(*(uint32_t*)0x200000000448 = 0x10);
    NONFAILING(*(uint64_t*)0x200000000450 = 0x200000000200);
    NONFAILING(memcpy(
        (void*)0x200000000200,
        "\x3c\x9e\x89\x52\x6b\x1f\x00\xb0\x7f\x8a\xee\x18\xe5\xaa\x35\x05",
        16));
    NONFAILING(*(uint32_t*)0x200000000458 = 0);
    NONFAILING(*(uint64_t*)0x200000000460 = 0);
    NONFAILING(*(uint32_t*)0x200000000468 = 0);
    NONFAILING(*(uint32_t*)0x20000000046c = 0xfdffffff);
    NONFAILING(*(uint32_t*)0x200000000470 = 0);
    NONFAILING(*(uint32_t*)0x200000000474 = 0);
    NONFAILING(*(uint32_t*)0x200000000478 = 3);
    NONFAILING(*(uint32_t*)0x20000000047c = 0x80000001);
    syscall(SYS_ioctl, /*fd=*/r[4], /*cmd=*/0xc040636aul,
            /*arg=*/0x200000000440ul);
    break;
  case 21:
    //  fcntl$dupfd arguments: [
    //    fd: fd (resource)
    //    cmd: fcntl_dupfd = 0x11 (8 bytes)
    //    arg: fd (resource)
    //  ]
    //  returns fd
    res = syscall(SYS_fcntl, /*fd=*/r[4], /*cmd=F_DUPFD_CLOEXEC*/ 0x11ul,
                  /*arg=*/r[3]);
    if (res != -1)
      r[5] = res;
    break;
  case 22:
    //  ioctl$CIOCCRYPT arguments: [
    //    fd: fd_crypto (resource)
    //    cmd: const = 0xc0306367 (8 bytes)
    //    arg: ptr[inout, crypt_op] {
    //      crypt_op {
    //        ses: int32 = 0x0 (4 bytes)
    //        op: op_flags = 0x2 (2 bytes)
    //        flags: int16 = 0x100 (2 bytes)
    //        len: int32 = 0x12 (4 bytes)
    //        pad = 0x0 (4 bytes)
    //        src: nil
    //        dst: nil
    //        mac: nil
    //        iv: ptr[in, buffer] {
    //          buffer: {} (length 0x0)
    //        }
    //      }
    //    }
    //  ]
    NONFAILING(*(uint32_t*)0x200000000080 = 0);
    NONFAILING(*(uint16_t*)0x200000000084 = 2);
    NONFAILING(*(uint16_t*)0x200000000086 = 0x100);
    NONFAILING(*(uint32_t*)0x200000000088 = 0x12);
    NONFAILING(*(uint64_t*)0x200000000090 = 0);
    NONFAILING(*(uint64_t*)0x200000000098 = 0);
    NONFAILING(*(uint64_t*)0x2000000000a0 = 0);
    NONFAILING(*(uint64_t*)0x2000000000a8 = 0x200000000000);
    syscall(SYS_ioctl, /*fd=*/r[5], /*cmd=*/0xc0306367ul,
            /*arg=*/0x200000000080ul);
    break;
  }
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x1012ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  install_segv_handler();
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      loop();
    }
  }
  sleep(1000000);
  return 0;
}