// https://syzkaller.appspot.com/bug?id=422cd2682bda7bd00e8b318221985dbad2010757
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

unsigned long long procid;

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;
  for (iter = 0;; 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;
    }
  }
}

#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_socket
#define SYS_socket 394
#endif
#ifndef SYS_writev
#define SYS_writev 121
#endif

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(SYS_socket, 0x22, 3, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x200014c0 = 0x20000000;
  memcpy((void*)0x20000000,
         "\x9f\x88\x5b\x81\x22\x43\xe2\x9e\x69\x3b\x67\xc6\x9d\xe7\xba\xc1\x60"
         "\xdc\x58\xa6\xa2\x2b\x89\x32\x1c\xe8\x25\x9b\xf6\xf7\x33\xae\x68\x58"
         "\x44\xf4\xda\x8b\x39\x0e\xf0\x16\xa1\x44\xd1\xad\xca\x12\x2e\x68\x13"
         "\x68\x4f\x4b\x7e\xbf\xc6\x14\x5e\x09\xbd\xb5\xae\x15\xb8\x05\x89\xf2"
         "\xc4\x55\xda\x99\x83\x51\x65\xa7\x4a\x74\x89\x82\xde\xf9\xb0\xb2\xe5"
         "\x50\x88\x9e\x1d\x35\x89\xe2\xbd\x86\x19\xc3\x3e\x39\xcb\xca\x13\x5c"
         "\xd4\x21\x36\xcf\x73\xb8\x35\x34\xf0\xe9\x32\x44\x5b\x0b\x72\x48\x9a"
         "\x51\x74\x56\x94\x65\x2d\x52\x6b\x1a\x47\x0b\x83\xb4\x93\x7a\xf1\xe9"
         "\x06\x98\xa7\x5c\xd2\x15\xf3\x30\xd0\xd0\xea\xd7\xe3\xf6\xa5\xab\xbf"
         "\xaa\xac\x6c\x6b\xcb",
         158);
  *(uint64_t*)0x200014c8 = 0x9e;
  *(uint64_t*)0x200014d0 = 0;
  *(uint64_t*)0x200014d8 = 0;
  syscall(SYS_writev, r[0], 0x200014c0, 2);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000, 0x1000000, 3, 0x1012, -1, 0, 0);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}