// https://syzkaller.appspot.com/bug?id=030eb71324790093d467799263cd0789e5097229
// 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>

#ifndef SYS_connect
#define SYS_connect 98
#endif
#ifndef SYS_fcntl
#define SYS_fcntl 92
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_open
#define SYS_open 5
#endif

static 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 = 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 < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000000,
         "\x99\x18\x4b\x2e\xc1\x60\x1c\x81\x2f\x44\x7e\xc6\x5f\x90\x43\x11\x1a"
         "\x09\x06\x1e\x86\x9d\xef\x09\xf7\xfa\xc8\xea\xe7\xd7\xb2\xeb\x20\x59"
         "\x5c\x77\x06\x06\x08\xe4\xab\xf3\x8e\x76\x6d\x89\xcb\x75\x1f\x3c\xe8"
         "\x2d\x41\x08\x5f\xe8\xa1\xfb\x25\x6f\x46\x6c\x3a\x1b\x3e\xf0\x56\x69"
         "\xf4\xcc\x18\xa5\xea\xf8\x19\x9c\x9c\x6f\x10\xf5\xbf\x8d\xa5\xbc\x11"
         "\x7a\xcd\x99\x47\x3d\xc1\x20\xfb\x4f\x81\xe7\x65\xa8\x53\xf7\x56\xe1"
         "\xcb\x13\x2e\x12\x3f\x85\x85\xc3\xc7\x57\xaa\xfa\xf4\x62\xc1\x0b\x86"
         "\x9d\x0f\xc1\x07\xf9\x74\x11\x22\x9d\x29\x5b",
         130);
  syscall(SYS_connect, -1, 0x20000000ul, 0x1cul);
  memcpy((void*)0x20000140, "./file0\000", 8);
  res = syscall(SYS_open, 0x20000140ul, 0x206ul, 0ul);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20000000 = 3;
  *(uint16_t*)0x20000002 = 1;
  *(uint64_t*)0x20000008 = 0xffff;
  *(uint64_t*)0x20000010 = 0x1000300010005;
  *(uint32_t*)0x20000018 = -1;
  syscall(SYS_fcntl, r[0], 7ul, 0x20000000ul);
}
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;
}