// https://syzkaller.appspot.com/bug?id=e7f18129f3a82bf5137e281542ead3a1f89edd4f
// 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 <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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>

#ifndef __NR_bpf
#define __NR_bpf 321
#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 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;
}

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");
}

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 < 11; 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 + (call == 9 ? 500 : 0));
      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++) {
    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_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    //  socket$kcm arguments: [
    //    domain: const = 0xa (8 bytes)
    //    type: kcm_socket_type = 0x2 (8 bytes)
    //    proto: const = 0x0 (4 bytes)
    //  ]
    //  returns sock_kcm
    res = syscall(__NR_socket, /*domain=*/0xaul, /*type=SOCK_DGRAM*/ 2ul,
                  /*proto=*/0);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    //  perf_event_open arguments: [
    //    attr: ptr[in, perf_event_attr] {
    //      perf_event_attr {
    //        type: perf_event_type = 0x1 (4 bytes)
    //        size: len = 0x80 (4 bytes)
    //        config0: int8 = 0x0 (1 bytes)
    //        config1: int8 = 0x0 (1 bytes)
    //        config2: int8 = 0x0 (1 bytes)
    //        config3: int8 = 0x0 (1 bytes)
    //        config4: const = 0x0 (4 bytes)
    //        sample_freq: int64 = 0x4d31 (8 bytes)
    //        sample_type: perf_sample_type = 0x80 (8 bytes)
    //        read_format: perf_read_format = 0x0 (8 bytes)
    //        disabled: int64 = 0x0 (0 bytes)
    //        inherit: int64 = 0x0 (0 bytes)
    //        pinned: int64 = 0x0 (0 bytes)
    //        exclusive: int64 = 0x0 (0 bytes)
    //        exclude_user: int64 = 0x0 (0 bytes)
    //        exclude_kernel: int64 = 0x0 (0 bytes)
    //        exclude_hv: int64 = 0x0 (0 bytes)
    //        exclude_idle: int64 = 0x0 (0 bytes)
    //        mmap: int64 = 0x0 (0 bytes)
    //        comm: int64 = 0x0 (0 bytes)
    //        freq: int64 = 0x0 (0 bytes)
    //        inherit_stat: int64 = 0x0 (0 bytes)
    //        enable_on_exec: int64 = 0x0 (0 bytes)
    //        task: int64 = 0x0 (0 bytes)
    //        watermark: int64 = 0x0 (0 bytes)
    //        precise_ip: int64 = 0x0 (0 bytes)
    //        mmap_data: int64 = 0x0 (0 bytes)
    //        sample_id_all: int64 = 0x0 (0 bytes)
    //        exclude_host: int64 = 0x0 (0 bytes)
    //        exclude_guest: int64 = 0x0 (0 bytes)
    //        exclude_callchain_kernel: int64 = 0x0 (0 bytes)
    //        exclude_callchain_user: int64 = 0x0 (0 bytes)
    //        mmap2: int64 = 0x0 (0 bytes)
    //        comm_exec: int64 = 0x0 (0 bytes)
    //        use_clockid: int64 = 0x0 (0 bytes)
    //        context_switch: int64 = 0x0 (0 bytes)
    //        write_backward: int64 = 0x0 (0 bytes)
    //        namespaces: int64 = 0x0 (0 bytes)
    //        ksymbol: int64 = 0x0 (0 bytes)
    //        bpf_event: int64 = 0x0 (0 bytes)
    //        aux_output: int64 = 0x0 (0 bytes)
    //        cgroup: int64 = 0x0 (0 bytes)
    //        text_poke: int64 = 0x0 (0 bytes)
    //        build_id: int64 = 0x0 (0 bytes)
    //        inherit_thread: int64 = 0x0 (0 bytes)
    //        remove_on_exec: int64 = 0x0 (0 bytes)
    //        sigtrap: int64 = 0x0 (0 bytes)
    //        __reserved_1: const = 0x0 (8 bytes)
    //        wakeup_events: int32 = 0x0 (4 bytes)
    //        bp_type: perf_bp_type = 0x4 (4 bytes)
    //        bp_config: union perf_bp_config {
    //          perf_bp: perf_bp {
    //            bp_addr: nil
    //            bp_len: perf_bp_lens = 0x1 (8 bytes)
    //          }
    //        }
    //        branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes)
    //        sample_regs_user: int64 = 0x2 (8 bytes)
    //        sample_stack_user: int32 = 0xfffffffe (4 bytes)
    //        clockid: clock_type = 0x0 (4 bytes)
    //        sample_regs_intr: int64 = 0x0 (8 bytes)
    //        aux_watermark: int32 = 0x0 (4 bytes)
    //        sample_max_stack: int16 = 0x0 (2 bytes)
    //        __reserved_2: const = 0x0 (2 bytes)
    //        aux_sample_size: int32 = 0x0 (4 bytes)
    //        __reserved_3: const = 0x0 (4 bytes)
    //        sig_data: int64 = 0x0 (8 bytes)
    //      }
    //    }
    //    pid: pid (resource)
    //    cpu: intptr = 0xffffffffffffffff (8 bytes)
    //    group: fd_perf (resource)
    //    flags: perf_flags = 0x0 (8 bytes)
    //  ]
    //  returns fd_perf
    *(uint32_t*)0x2000000003c0 = 1;
    *(uint32_t*)0x2000000003c4 = 0x80;
    *(uint8_t*)0x2000000003c8 = 0;
    *(uint8_t*)0x2000000003c9 = 0;
    *(uint8_t*)0x2000000003ca = 0;
    *(uint8_t*)0x2000000003cb = 0;
    *(uint32_t*)0x2000000003cc = 0;
    *(uint64_t*)0x2000000003d0 = 0x4d31;
    *(uint64_t*)0x2000000003d8 = 0x80;
    *(uint64_t*)0x2000000003e0 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 29, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 30, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 31, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 32, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 33, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 34, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 35, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 36, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 37, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 38, 26);
    *(uint32_t*)0x2000000003f0 = 0;
    *(uint32_t*)0x2000000003f4 = 4;
    *(uint64_t*)0x2000000003f8 = 0;
    *(uint64_t*)0x200000000400 = 1;
    *(uint64_t*)0x200000000408 = 0;
    *(uint64_t*)0x200000000410 = 2;
    *(uint32_t*)0x200000000418 = 0xfffffffe;
    *(uint32_t*)0x20000000041c = 0;
    *(uint64_t*)0x200000000420 = 0;
    *(uint32_t*)0x200000000428 = 0;
    *(uint16_t*)0x20000000042c = 0;
    *(uint16_t*)0x20000000042e = 0;
    *(uint32_t*)0x200000000430 = 0;
    *(uint32_t*)0x200000000434 = 0;
    *(uint64_t*)0x200000000438 = 0;
    syscall(__NR_perf_event_open, /*attr=*/0x2000000003c0ul, /*pid=*/0,
            /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1, /*flags=*/0ul);
    break;
  case 2:
    //  socket$kcm arguments: [
    //    domain: const = 0xa (8 bytes)
    //    type: kcm_socket_type = 0x5 (8 bytes)
    //    proto: const = 0x0 (4 bytes)
    //  ]
    //  returns sock_kcm
    syscall(__NR_socket, /*domain=*/0xaul, /*type=SOCK_SEQPACKET*/ 5ul,
            /*proto=*/0);
    break;
  case 3:
    //  close arguments: [
    //    fd: fd (resource)
    //  ]
    syscall(__NR_close, /*fd=*/3);
    break;
  case 4:
    //  bpf$BPF_BTF_LOAD arguments: [
    //    cmd: const = 0x12 (8 bytes)
    //    arg: ptr[in, bpf_btf_load] {
    //      bpf_btf_load {
    //        btf: ptr[inout, array[ANYUNION]] {
    //          array[ANYUNION] {
    //            union ANYUNION {
    //              ANYBLOB: buffer: {9f eb 01 00 18 00 00 00 00 00 00 00 18 00
    //              00 00 18 00 00 00 04 00 00 00 02 00 00 00 00 00 00 0c 02 00
    //              00 00 00 00 00 00 00 00 00 0d 00 00 00 00 00 00 57} (length
    //              0x33)
    //            }
    //          }
    //        }
    //        btf_log_buf: nil
    //        btf_size: bytesize = 0x34 (4 bytes)
    //        btf_log_size: bytesize = 0x0 (4 bytes)
    //        btf_log_level: int32 = 0x0 (4 bytes)
    //        btf_log_true_size: int32 = 0x0 (4 bytes)
    //        btf_flags: btf_load_flags = 0x0 (4 bytes)
    //        btf_token_fd: union _bpf_btf_load_btf_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_btf_load_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x28 (8 bytes)
    //  ]
    //  returns fd_btf
    *(uint64_t*)0x200000000140 = 0x200000000400;
    memcpy(
        (void*)0x200000000400,
        "\x9f\xeb\x01\x00\x18\x00\x00\x00\x00\x00\x00\x00\x18\x00\x00\x00\x18"
        "\x00\x00\x00\x04\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x0c\x02\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0d\x00\x00\x00\x00\x00\x00\x57",
        51);
    *(uint64_t*)0x200000000148 = 0;
    *(uint32_t*)0x200000000150 = 0x34;
    *(uint32_t*)0x200000000154 = 0;
    *(uint32_t*)0x200000000158 = 0;
    *(uint32_t*)0x20000000015c = 0;
    *(uint32_t*)0x200000000160 = 0;
    *(uint32_t*)0x200000000164 = 0;
    syscall(__NR_bpf, /*cmd=*/0x12ul, /*arg=*/0x200000000140ul,
            /*size=*/0x28ul);
    break;
  case 5:
    //  bpf$MAP_CREATE arguments: [
    //    cmd: const = 0x0 (8 bytes)
    //    arg: nil
    //    size: len = 0x48 (8 bytes)
    //  ]
    //  returns fd_bpf_map
    syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0x48ul);
    break;
  case 6:
    //  ioctl$PERF_EVENT_IOC_SET_BPF arguments: [
    //    fd: fd_perf (resource)
    //    cmd: const = 0x40042408 (4 bytes)
    //    prog: fd_bpf_prog (resource)
    //  ]
    syscall(__NR_ioctl, /*fd=*/(intptr_t)-1, /*cmd=*/0x40042408,
            /*prog=*/(intptr_t)-1);
    break;
  case 7:
    //  perf_event_open arguments: [
    //    attr: ptr[in, perf_event_attr] {
    //      perf_event_attr {
    //        type: perf_event_type = 0x1 (4 bytes)
    //        size: len = 0x80 (4 bytes)
    //        config0: int8 = 0x0 (1 bytes)
    //        config1: int8 = 0x0 (1 bytes)
    //        config2: int8 = 0x0 (1 bytes)
    //        config3: int8 = 0x0 (1 bytes)
    //        config4: const = 0x0 (4 bytes)
    //        sample_freq: int64 = 0x4d31 (8 bytes)
    //        sample_type: perf_sample_type = 0x0 (8 bytes)
    //        read_format: perf_read_format = 0x0 (8 bytes)
    //        disabled: int64 = 0x0 (0 bytes)
    //        inherit: int64 = 0x0 (0 bytes)
    //        pinned: int64 = 0x0 (0 bytes)
    //        exclusive: int64 = 0x0 (0 bytes)
    //        exclude_user: int64 = 0x0 (0 bytes)
    //        exclude_kernel: int64 = 0x0 (0 bytes)
    //        exclude_hv: int64 = 0x0 (0 bytes)
    //        exclude_idle: int64 = 0x0 (0 bytes)
    //        mmap: int64 = 0x0 (0 bytes)
    //        comm: int64 = 0x0 (0 bytes)
    //        freq: int64 = 0x0 (0 bytes)
    //        inherit_stat: int64 = 0x0 (0 bytes)
    //        enable_on_exec: int64 = 0x0 (0 bytes)
    //        task: int64 = 0x0 (0 bytes)
    //        watermark: int64 = 0x0 (0 bytes)
    //        precise_ip: int64 = 0x0 (0 bytes)
    //        mmap_data: int64 = 0x0 (0 bytes)
    //        sample_id_all: int64 = 0x0 (0 bytes)
    //        exclude_host: int64 = 0x0 (0 bytes)
    //        exclude_guest: int64 = 0x0 (0 bytes)
    //        exclude_callchain_kernel: int64 = 0x0 (0 bytes)
    //        exclude_callchain_user: int64 = 0x0 (0 bytes)
    //        mmap2: int64 = 0x0 (0 bytes)
    //        comm_exec: int64 = 0x0 (0 bytes)
    //        use_clockid: int64 = 0x0 (0 bytes)
    //        context_switch: int64 = 0x0 (0 bytes)
    //        write_backward: int64 = 0x0 (0 bytes)
    //        namespaces: int64 = 0x0 (0 bytes)
    //        ksymbol: int64 = 0x0 (0 bytes)
    //        bpf_event: int64 = 0x0 (0 bytes)
    //        aux_output: int64 = 0x0 (0 bytes)
    //        cgroup: int64 = 0x0 (0 bytes)
    //        text_poke: int64 = 0x0 (0 bytes)
    //        build_id: int64 = 0x0 (0 bytes)
    //        inherit_thread: int64 = 0x0 (0 bytes)
    //        remove_on_exec: int64 = 0x0 (0 bytes)
    //        sigtrap: int64 = 0x0 (0 bytes)
    //        __reserved_1: const = 0x0 (8 bytes)
    //        wakeup_events: int32 = 0x0 (4 bytes)
    //        bp_type: perf_bp_type = 0x4 (4 bytes)
    //        bp_config: union perf_bp_config {
    //          perf_config_ext: perf_config_ext {
    //            config1: int64 = 0x1 (8 bytes)
    //            config2: int64 = 0x830d (8 bytes)
    //          }
    //        }
    //        branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes)
    //        sample_regs_user: int64 = 0x2 (8 bytes)
    //        sample_stack_user: int32 = 0xfffffffe (4 bytes)
    //        clockid: clock_type = 0x9 (4 bytes)
    //        sample_regs_intr: int64 = 0x0 (8 bytes)
    //        aux_watermark: int32 = 0x0 (4 bytes)
    //        sample_max_stack: int16 = 0x0 (2 bytes)
    //        __reserved_2: const = 0x0 (2 bytes)
    //        aux_sample_size: int32 = 0x0 (4 bytes)
    //        __reserved_3: const = 0x0 (4 bytes)
    //        sig_data: int64 = 0x0 (8 bytes)
    //      }
    //    }
    //    pid: pid (resource)
    //    cpu: intptr = 0xffffffffffffffff (8 bytes)
    //    group: fd_perf (resource)
    //    flags: perf_flags = 0x0 (8 bytes)
    //  ]
    //  returns fd_perf
    *(uint32_t*)0x2000000003c0 = 1;
    *(uint32_t*)0x2000000003c4 = 0x80;
    *(uint8_t*)0x2000000003c8 = 0;
    *(uint8_t*)0x2000000003c9 = 0;
    *(uint8_t*)0x2000000003ca = 0;
    *(uint8_t*)0x2000000003cb = 0;
    *(uint32_t*)0x2000000003cc = 0;
    *(uint64_t*)0x2000000003d0 = 0x4d31;
    *(uint64_t*)0x2000000003d8 = 0;
    *(uint64_t*)0x2000000003e0 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 29, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 30, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 31, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 32, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 33, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 34, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 35, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 36, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 37, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2000000003e8, 0, 38, 26);
    *(uint32_t*)0x2000000003f0 = 0;
    *(uint32_t*)0x2000000003f4 = 4;
    *(uint64_t*)0x2000000003f8 = 1;
    *(uint64_t*)0x200000000400 = 0x830d;
    *(uint64_t*)0x200000000408 = 0;
    *(uint64_t*)0x200000000410 = 2;
    *(uint32_t*)0x200000000418 = 0xfffffffe;
    *(uint32_t*)0x20000000041c = 9;
    *(uint64_t*)0x200000000420 = 0;
    *(uint32_t*)0x200000000428 = 0;
    *(uint16_t*)0x20000000042c = 0;
    *(uint16_t*)0x20000000042e = 0;
    *(uint32_t*)0x200000000430 = 0;
    *(uint32_t*)0x200000000434 = 0;
    *(uint64_t*)0x200000000438 = 0;
    syscall(__NR_perf_event_open, /*attr=*/0x2000000003c0ul, /*pid=*/0,
            /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1, /*flags=*/0ul);
    break;
  case 8:
    //  socket$kcm arguments: [
    //    domain: const = 0x10 (8 bytes)
    //    type: kcm_socket_type = 0x2 (8 bytes)
    //    proto: const = 0x0 (4 bytes)
    //  ]
    //  returns sock_kcm
    syscall(__NR_socket, /*domain=*/0x10ul, /*type=SOCK_DGRAM*/ 2ul,
            /*proto=*/0);
    break;
  case 9:
    //  bpf$BPF_PROG_RAW_TRACEPOINT_LOAD arguments: [
    //    cmd: const = 0x5 (8 bytes)
    //    arg: ptr[in, bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32],
    //    const[0, int32], const[0, int32], const[0, int32]]] {
    //      bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], const[0,
    //      int32], const[0, int32], const[0, int32]] {
    //        type: bpf_raw_tracepoint_prog_types = 0x11 (4 bytes)
    //        ninsn: bytesize8 = 0x3 (4 bytes)
    //        insns: ptr[in, bpf_instructions] {
    //          union bpf_instructions {
    //            framed: bpf_framed_program {
    //              initr0: bpf_insn_init_r0 {
    //                code: const = 0x18 (1 bytes)
    //                dst: const = 0x0 (0 bytes)
    //                src: const = 0x3 (1 bytes)
    //                off: const = 0x0 (2 bytes)
    //                imm: int32 = 0x1 (4 bytes)
    //                code2: const = 0x0 (1 bytes)
    //                regs2: const = 0x0 (1 bytes)
    //                off2: const = 0x0 (2 bytes)
    //                imm2: int32 = 0x3 (4 bytes)
    //              }
    //              body: array[bpf_insn] {
    //              }
    //              exit: bpf_insn_exit {
    //                code: const = 0x95 (1 bytes)
    //                regs: const = 0x0 (1 bytes)
    //                off: const = 0x0 (2 bytes)
    //                imm: const = 0x0 (4 bytes)
    //              }
    //            }
    //          }
    //        }
    //        license: ptr[in, buffer] {
    //          buffer: {73 79 7a 6b 61 6c 6c 65 72 00} (length 0xa)
    //        }
    //        loglev: int32 = 0x8 (4 bytes)
    //        logsize: len = 0x0 (4 bytes)
    //        log: nil
    //        kern_version: bpf_kern_version = 0x41000 (4 bytes)
    //        flags: bpf_prog_load_flags = 0x0 (4 bytes)
    //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    //        00} (length 0x10) prog_ifindex: ifindex (resource)
    //        expected_attach_type: const = 0x0 (4 bytes)
    //        btf_fd: fd_btf (resource)
    //        func_info_rec_size: const = 0x8 (4 bytes)
    //        func_info: nil
    //        func_info_cnt: len = 0x0 (4 bytes)
    //        line_info_rec_size: const = 0x10 (4 bytes)
    //        line_info: nil
    //        line_info_cnt: len = 0x0 (4 bytes)
    //        attach_btf_id: const = 0x0 (4 bytes)
    //        attach_prog_fd: const = 0x0 (4 bytes)
    //        core_relo_cnt: len = 0x0 (4 bytes)
    //        fd_array: nil
    //        core_relos: nil
    //        core_relo_rec_size: const = 0x10 (4 bytes)
    //        log_true_size: int32 = 0x0 (4 bytes)
    //        prog_token_fd: union
    //        _bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], const[0,
    //        int32], const[0, int32], const[0, int32]]_prog_token_fd_wrapper {
    //          void: buffer: {} (length 0x0)
    //        }
    //        pad: union _bpf_prog_t[flags[bpf_raw_tracepoint_prog_types,
    //        int32], const[0, int32], const[0, int32], const[0,
    //        int32]]_pad_wrapper {
    //          value: const = 0x0 (4 bytes)
    //        }
    //      }
    //    }
    //    size: len = 0x94 (8 bytes)
    //  ]
    //  returns fd_bpf_prog_raw_tracepoint
    *(uint32_t*)0x200000000180 = 0x11;
    *(uint32_t*)0x200000000184 = 3;
    *(uint64_t*)0x200000000188 = 0x200000000000;
    *(uint8_t*)0x200000000000 = 0x18;
    STORE_BY_BITMASK(uint8_t, , 0x200000000001, 0, 0, 4);
    STORE_BY_BITMASK(uint8_t, , 0x200000000001, 3, 4, 4);
    *(uint16_t*)0x200000000002 = 0;
    *(uint32_t*)0x200000000004 = 1;
    *(uint8_t*)0x200000000008 = 0;
    *(uint8_t*)0x200000000009 = 0;
    *(uint16_t*)0x20000000000a = 0;
    *(uint32_t*)0x20000000000c = 3;
    *(uint8_t*)0x200000000010 = 0x95;
    *(uint8_t*)0x200000000011 = 0;
    *(uint16_t*)0x200000000012 = 0;
    *(uint32_t*)0x200000000014 = 0;
    *(uint64_t*)0x200000000190 = 0x200000000080;
    memcpy((void*)0x200000000080, "syzkaller\000", 10);
    *(uint32_t*)0x200000000198 = 8;
    *(uint32_t*)0x20000000019c = 0;
    *(uint64_t*)0x2000000001a0 = 0;
    *(uint32_t*)0x2000000001a8 = 0x41000;
    *(uint32_t*)0x2000000001ac = 0;
    memset((void*)0x2000000001b0, 0, 16);
    *(uint32_t*)0x2000000001c0 = 0;
    *(uint32_t*)0x2000000001c4 = 0;
    *(uint32_t*)0x2000000001c8 = -1;
    *(uint32_t*)0x2000000001cc = 8;
    *(uint64_t*)0x2000000001d0 = 0;
    *(uint32_t*)0x2000000001d8 = 0;
    *(uint32_t*)0x2000000001dc = 0x10;
    *(uint64_t*)0x2000000001e0 = 0;
    *(uint32_t*)0x2000000001e8 = 0;
    *(uint32_t*)0x2000000001ec = 0;
    *(uint32_t*)0x2000000001f0 = 0;
    *(uint32_t*)0x2000000001f4 = 0;
    *(uint64_t*)0x2000000001f8 = 0;
    *(uint64_t*)0x200000000200 = 0;
    *(uint32_t*)0x200000000208 = 0x10;
    *(uint32_t*)0x20000000020c = 0;
    *(uint32_t*)0x200000000210 = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000180ul, /*size=*/0x94ul);
    break;
  case 10:
    //  close arguments: [
    //    fd: fd (resource)
    //  ]
    syscall(__NR_close, /*fd=*/r[0]);
    break;
  }
}
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;
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}