// https://syzkaller.appspot.com/bug?id=95ac7e30218c63bc9322b1dd775101f8f88de4ff
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <sys/types.h>

#include <pwd.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/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

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 execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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 < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(SYS_kqueue);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000000 = 3;
  *(uint16_t*)0x20000008 = 0xfff3;
  *(uint16_t*)0x2000000a = 0x4000;
  *(uint32_t*)0x2000000c = 0x1000000;
  *(uint64_t*)0x20000010 = 0xe;
  *(uint64_t*)0x20000018 = 0xff;
  *(uint64_t*)0x20000020 = 2;
  *(uint64_t*)0x20000028 = 2;
  *(uint64_t*)0x20000030 = 4;
  *(uint64_t*)0x20000038 = 0xffffffffffffff90;
  *(uint64_t*)0x20000040 = 0x101;
  *(uint16_t*)0x20000048 = 0xfff6;
  *(uint16_t*)0x2000004a = 0x22;
  *(uint32_t*)0x2000004c = 0x20;
  *(uint64_t*)0x20000050 = 0xe1;
  *(uint64_t*)0x20000058 = -1;
  *(uint64_t*)0x20000060 = 0x81;
  *(uint64_t*)0x20000068 = 4;
  *(uint64_t*)0x20000070 = 0x8000;
  *(uint64_t*)0x20000078 = 9;
  *(uint64_t*)0x20000080 = 0;
  *(uint16_t*)0x20000088 = 0xfff9;
  *(uint16_t*)0x2000008a = 0xefc9;
  *(uint32_t*)0x2000008c = 4;
  *(uint64_t*)0x20000090 = 0;
  *(uint64_t*)0x20000098 = 0x400;
  *(uint64_t*)0x200000a0 = 0x2e77;
  *(uint64_t*)0x200000a8 = 2;
  *(uint64_t*)0x200000b0 = 0x7fffffff;
  *(uint64_t*)0x200000b8 = 7;
  syscall(SYS_kevent, r[0], 0x20000000ul, 3ul, 0x200000c0ul, 9ul, 0ul);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x1012ul, -1, 0ul);
  loop();
  return 0;
}