// https://syzkaller.appspot.com/bug?id=4e947674d10b0fb0cb94d4d723989cee439a71d6
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/prctl.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static uint64_t current_time_ms()
{
  struct timespec ts;

  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    fail("clock_gettime failed");
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void execute_one();
extern unsigned long long procid;

static void loop()
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("clone failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      execute_one();
      doexit(0);
    }

    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      int res = waitpid(-1, &status, __WALL | WNOHANG);
      if (res == pid) {
        break;
      }
      usleep(1000);
      if (current_time_ms() - start < 3 * 1000)
        continue;
      kill(-pid, SIGKILL);
      kill(pid, SIGKILL);
      while (waitpid(-1, &status, __WALL) != pid) {
      }
      break;
    }
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_one()
{
  long res = 0;
  res = syscall(__NR_socket, 2, 0x200000002, 0x88);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20000000 = 2;
  *(uint16_t*)0x20000002 = htobe16(0x4e21);
  *(uint32_t*)0x20000004 = htobe32(0);
  *(uint8_t*)0x20000008 = 0;
  *(uint8_t*)0x20000009 = 0;
  *(uint8_t*)0x2000000a = 0;
  *(uint8_t*)0x2000000b = 0;
  *(uint8_t*)0x2000000c = 0;
  *(uint8_t*)0x2000000d = 0;
  *(uint8_t*)0x2000000e = 0;
  *(uint8_t*)0x2000000f = 0;
  syscall(__NR_bind, r[0], 0x20000000, 0x10);
  res = syscall(__NR_dup2, r[0], r[0]);
  if (res != -1)
    r[1] = res;
  *(uint16_t*)0x20000100 = 2;
  *(uint16_t*)0x20000102 = htobe16(0x4e21);
  *(uint32_t*)0x20000104 = htobe32(0);
  *(uint8_t*)0x20000108 = 0;
  *(uint8_t*)0x20000109 = 0;
  *(uint8_t*)0x2000010a = 0;
  *(uint8_t*)0x2000010b = 0;
  *(uint8_t*)0x2000010c = 0;
  *(uint8_t*)0x2000010d = 0;
  *(uint8_t*)0x2000010e = 0;
  *(uint8_t*)0x2000010f = 0;
  syscall(__NR_sendto, r[0], 0x20000200, 0x7a, 0x8000, 0x20000100, 0x10);
  *(uint64_t*)0x20000840 = 0x200003c0;
  *(uint16_t*)0x200003c0 = 0x10;
  *(uint16_t*)0x200003c2 = 0;
  *(uint32_t*)0x200003c4 = 0;
  *(uint32_t*)0x200003c8 = 0;
  *(uint32_t*)0x20000848 = 0xc;
  *(uint64_t*)0x20000850 = 0x20000800;
  *(uint64_t*)0x20000800 = 0x20000400;
  *(uint32_t*)0x20000400 = 0x14;
  *(uint8_t*)0x20000404 = 0;
  *(uint8_t*)0x20000405 = 0;
  *(uint16_t*)0x20000406 = 0;
  *(uint32_t*)0x20000408 = 0;
  *(uint32_t*)0x2000040c = 0;
  *(uint8_t*)0x20000410 = 0;
  *(uint8_t*)0x20000411 = 0;
  *(uint16_t*)0x20000412 = htobe16(0);
  *(uint64_t*)0x20000808 = 0x14;
  *(uint64_t*)0x20000858 = 1;
  *(uint64_t*)0x20000860 = 0;
  *(uint64_t*)0x20000868 = 0;
  *(uint32_t*)0x20000870 = 0;
  syscall(__NR_sendmsg, r[1], 0x20000840, 0);
  res = syscall(__NR_socket, 0x10, 3, 6);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000340 = 0x20000000;
  *(uint16_t*)0x20000000 = 0x10;
  *(uint16_t*)0x20000002 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x20000348 = 0xc;
  *(uint64_t*)0x20000350 = 0x20000300;
  *(uint64_t*)0x20000300 = 0x20000440;
  *(uint32_t*)0x20000440 = 0xc4;
  *(uint16_t*)0x20000444 = 0x19;
  *(uint16_t*)0x20000446 = 0x523;
  *(uint32_t*)0x20000448 = 0;
  *(uint32_t*)0x2000044c = 0;
  *(uint32_t*)0x20000450 = htobe32(0xe0000002);
  *(uint8_t*)0x20000460 = 0;
  *(uint8_t*)0x20000461 = 0;
  *(uint8_t*)0x20000462 = 0;
  *(uint8_t*)0x20000463 = 0;
  *(uint8_t*)0x20000464 = 0;
  *(uint8_t*)0x20000465 = 0;
  *(uint8_t*)0x20000466 = 0;
  *(uint8_t*)0x20000467 = 0;
  *(uint8_t*)0x20000468 = 0;
  *(uint8_t*)0x20000469 = 0;
  *(uint8_t*)0x2000046a = 0;
  *(uint8_t*)0x2000046b = 0;
  *(uint8_t*)0x2000046c = 0;
  *(uint8_t*)0x2000046d = 0;
  *(uint8_t*)0x2000046e = 0;
  *(uint8_t*)0x2000046f = 0;
  *(uint16_t*)0x20000470 = htobe16(0);
  *(uint16_t*)0x20000472 = htobe16(0);
  *(uint16_t*)0x20000474 = htobe16(0);
  *(uint16_t*)0x20000476 = htobe16(0);
  *(uint16_t*)0x20000478 = 0xa;
  *(uint8_t*)0x2000047a = 0;
  *(uint8_t*)0x2000047b = 0;
  *(uint8_t*)0x2000047c = 0;
  *(uint32_t*)0x20000480 = 0;
  *(uint32_t*)0x20000484 = 0;
  *(uint64_t*)0x20000488 = 0;
  *(uint64_t*)0x20000490 = 0;
  *(uint64_t*)0x20000498 = 0;
  *(uint64_t*)0x200004a0 = 0;
  *(uint64_t*)0x200004a8 = 0;
  *(uint64_t*)0x200004b0 = 0;
  *(uint64_t*)0x200004b8 = 0;
  *(uint64_t*)0x200004c0 = 0;
  *(uint64_t*)0x200004c8 = 0;
  *(uint64_t*)0x200004d0 = 0;
  *(uint64_t*)0x200004d8 = 0;
  *(uint64_t*)0x200004e0 = 0;
  *(uint32_t*)0x200004e8 = 0;
  *(uint32_t*)0x200004ec = 0;
  *(uint8_t*)0x200004f0 = 0;
  *(uint8_t*)0x200004f1 = 0;
  *(uint8_t*)0x200004f2 = 0;
  *(uint8_t*)0x200004f3 = 0;
  *(uint16_t*)0x200004f8 = 0xc;
  *(uint16_t*)0x200004fa = 0x10;
  *(uint8_t*)0x200004fc = 0;
  *(uint16_t*)0x200004fe = 0;
  *(uint8_t*)0x20000500 = 0;
  *(uint64_t*)0x20000308 = 0xc4;
  *(uint64_t*)0x20000358 = 1;
  *(uint64_t*)0x20000360 = 0;
  *(uint64_t*)0x20000368 = 0;
  *(uint32_t*)0x20000370 = 0;
  syscall(__NR_sendmsg, r[2], 0x20000340, 0);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (;;) {
    loop();
  }
}