// https://syzkaller.appspot.com/bug?id=45d463e3ae38f3c38f2c82f0a8c6a2c1c8ce7457
// 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, 0x11ul, 3ul, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000000 = 0x20000080;
  memcpy((void*)0x20000080,
         "\xdb\xe0\x10\x58\x68\x3f\xa3\x7f\x62\x34\x67\x33\x27\x1c\x19\x14\xc2"
         "\x97\x20\x46\x48\xe8\xd5\x8c\x03\xcf\x2b\x07\x19\x49\x3b\x42\x43\x32"
         "\xd1\xc3\x73\xbc\x27\x7d\xd6\xce\x9b\x28\x3e\xb7\x4e\xba\xee\xbc\xf1"
         "\x35\x99\xe3\xa5\x91\x8c\xfc\x26\x1d\x22\xfd\x38\x6c\xef\xa8\x50\x1c"
         "\x55\x4f\xa7\x5b\x66\x68\x87\xc4\x81\x0d\x33\x92\x45\xc0\x87\xad\x85"
         "\xe5\xab",
         87);
  *(uint64_t*)0x20000008 = 0x378;
  *(uint64_t*)0x20000010 = 0x20000100;
  memcpy((void*)0x20000100, "\xba\x6f\x8b\x04\x51\xeb\x8f\xaf\x3a\xae\xf2\x98"
                            "\x91\xa6\x21\xae\xf7\xc0\x28\x67\x08\xfb\x41\x52"
                            "\xf6\x72\xf8\x4e\xa3\xea\xef\xe0\x61",
         33);
  *(uint64_t*)0x20000018 = 0x21;
  syscall(SYS_writev, r[0], 0x20000000ul, 2ul);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}