// https://syzkaller.appspot.com/bug?id=4492e9b46eeb9887285ea0a61a5d5d91d12d0148
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.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 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 bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  int i;
  for (i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      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(__NR_socket, 2ul, 2ul, 0ul);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000380, "raw\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000",
         32);
  *(uint32_t*)0x200003a0 = 2;
  *(uint32_t*)0x200003a4 = 3;
  *(uint32_t*)0x200003a8 = 0x3b8;
  *(uint32_t*)0x200003ac = 0x250;
  *(uint32_t*)0x200003b0 = 0x250;
  *(uint32_t*)0x200003b4 = 0x250;
  *(uint32_t*)0x200003b8 = 0x250;
  *(uint32_t*)0x200003bc = 0x250;
  *(uint32_t*)0x200003c0 = 0x320;
  *(uint32_t*)0x200003c4 = 0x320;
  *(uint32_t*)0x200003c8 = 0x320;
  *(uint32_t*)0x200003cc = 0x320;
  *(uint32_t*)0x200003d0 = 0x320;
  *(uint32_t*)0x200003d4 = 3;
  *(uint64_t*)0x200003d8 = 0;
  *(uint32_t*)0x200003e0 = htobe32(-1);
  *(uint8_t*)0x200003e4 = 0xac;
  *(uint8_t*)0x200003e5 = 0x1e;
  *(uint8_t*)0x200003e6 = 0;
  *(uint8_t*)0x200003e7 = 1 + procid * 1;
  *(uint32_t*)0x200003e8 = htobe32(0);
  *(uint32_t*)0x200003ec = htobe32(0);
  memcpy((void*)0x200003f0, "ip6gretap0\000\000\000\000\000\000", 16);
  memcpy((void*)0x20000400,
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint8_t*)0x20000410 = 0;
  *(uint8_t*)0x20000420 = 0;
  *(uint16_t*)0x20000430 = 0;
  *(uint8_t*)0x20000432 = 0;
  *(uint8_t*)0x20000433 = 0;
  *(uint32_t*)0x20000434 = 0;
  *(uint16_t*)0x20000438 = 0x1f0;
  *(uint16_t*)0x2000043a = 0x250;
  *(uint32_t*)0x2000043c = 0;
  *(uint64_t*)0x20000440 = 0;
  *(uint64_t*)0x20000448 = 0;
  *(uint16_t*)0x20000450 = 0x158;
  memcpy((void*)0x20000452, "hashlimit\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x2000046f = 3;
  memcpy((void*)0x20000470,
         "team_slave_"
         "0\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000",
         255);
  *(uint64_t*)0x20000570 = 0;
  *(uint64_t*)0x20000578 = 0x401;
  *(uint32_t*)0x20000580 = 0;
  *(uint32_t*)0x20000584 = 0xe030000;
  *(uint32_t*)0x20000588 = 0;
  *(uint32_t*)0x2000058c = 4;
  *(uint32_t*)0x20000590 = 8;
  *(uint32_t*)0x20000594 = 0;
  *(uint8_t*)0x20000598 = 0;
  *(uint8_t*)0x20000599 = 0;
  *(uint64_t*)0x200005a0 = 0;
  *(uint16_t*)0x200005a8 = 0x28;
  memcpy((void*)0x200005aa, "rpfilter\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200005c7 = 0;
  *(uint8_t*)0x200005c8 = 0;
  *(uint16_t*)0x200005d0 = 0x60;
  memcpy((void*)0x200005d2, "SET\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000",
         29);
  *(uint8_t*)0x200005ef = 0;
  *(uint16_t*)0x200005f0 = 0;
  *(uint32_t*)0x200005f4 = 0;
  *(uint32_t*)0x200005f8 = 0;
  *(uint32_t*)0x200005fc = 0;
  *(uint32_t*)0x20000600 = 0;
  *(uint32_t*)0x20000604 = 0;
  *(uint32_t*)0x20000608 = 0;
  *(uint8_t*)0x2000060c = 0;
  *(uint8_t*)0x2000060d = 0;
  *(uint16_t*)0x20000610 = 0;
  *(uint32_t*)0x20000614 = 0;
  *(uint32_t*)0x20000618 = 0;
  *(uint32_t*)0x2000061c = 0;
  *(uint32_t*)0x20000620 = 0;
  *(uint32_t*)0x20000624 = 0;
  *(uint32_t*)0x20000628 = 3;
  *(uint8_t*)0x2000062c = 0;
  *(uint8_t*)0x2000062d = 0;
  *(uint8_t*)0x20000630 = 0;
  *(uint8_t*)0x20000631 = 0;
  *(uint8_t*)0x20000632 = 0;
  *(uint8_t*)0x20000633 = 0;
  *(uint8_t*)0x20000634 = 0;
  *(uint8_t*)0x20000635 = 0;
  *(uint8_t*)0x20000636 = 0;
  *(uint8_t*)0x20000637 = 0;
  *(uint8_t*)0x20000638 = 0;
  *(uint8_t*)0x20000639 = 0;
  *(uint8_t*)0x2000063a = 0;
  *(uint8_t*)0x2000063b = 0;
  *(uint8_t*)0x2000063c = 0;
  *(uint8_t*)0x2000063d = 0;
  *(uint8_t*)0x2000063e = 0;
  *(uint8_t*)0x2000063f = 0;
  *(uint8_t*)0x20000640 = 0;
  *(uint8_t*)0x20000641 = 0;
  *(uint8_t*)0x20000642 = 0;
  *(uint8_t*)0x20000643 = 0;
  *(uint8_t*)0x20000644 = 0;
  *(uint8_t*)0x20000645 = 0;
  *(uint8_t*)0x20000646 = 0;
  *(uint8_t*)0x20000647 = 0;
  *(uint8_t*)0x20000648 = 0;
  *(uint8_t*)0x20000649 = 0;
  *(uint8_t*)0x2000064a = 0;
  *(uint8_t*)0x2000064b = 0;
  *(uint8_t*)0x2000064c = 0;
  *(uint8_t*)0x2000064d = 0;
  *(uint8_t*)0x2000064e = 0;
  *(uint8_t*)0x2000064f = 0;
  *(uint8_t*)0x20000650 = 0;
  *(uint8_t*)0x20000651 = 0;
  *(uint8_t*)0x20000652 = 0;
  *(uint8_t*)0x20000653 = 0;
  *(uint8_t*)0x20000654 = 0;
  *(uint8_t*)0x20000655 = 0;
  *(uint8_t*)0x20000656 = 0;
  *(uint8_t*)0x20000657 = 0;
  *(uint8_t*)0x20000658 = 0;
  *(uint8_t*)0x20000659 = 0;
  *(uint8_t*)0x2000065a = 0;
  *(uint8_t*)0x2000065b = 0;
  *(uint8_t*)0x2000065c = 0;
  *(uint8_t*)0x2000065d = 0;
  *(uint8_t*)0x2000065e = 0;
  *(uint8_t*)0x2000065f = 0;
  *(uint8_t*)0x20000660 = 0;
  *(uint8_t*)0x20000661 = 0;
  *(uint8_t*)0x20000662 = 0;
  *(uint8_t*)0x20000663 = 0;
  *(uint8_t*)0x20000664 = 0;
  *(uint8_t*)0x20000665 = 0;
  *(uint8_t*)0x20000666 = 0;
  *(uint8_t*)0x20000667 = 0;
  *(uint8_t*)0x20000668 = 0;
  *(uint8_t*)0x20000669 = 0;
  *(uint8_t*)0x2000066a = 0;
  *(uint8_t*)0x2000066b = 0;
  *(uint8_t*)0x2000066c = 0;
  *(uint8_t*)0x2000066d = 0;
  *(uint8_t*)0x2000066e = 0;
  *(uint8_t*)0x2000066f = 0;
  *(uint8_t*)0x20000670 = 0;
  *(uint8_t*)0x20000671 = 0;
  *(uint8_t*)0x20000672 = 0;
  *(uint8_t*)0x20000673 = 0;
  *(uint8_t*)0x20000674 = 0;
  *(uint8_t*)0x20000675 = 0;
  *(uint8_t*)0x20000676 = 0;
  *(uint8_t*)0x20000677 = 0;
  *(uint8_t*)0x20000678 = 0;
  *(uint8_t*)0x20000679 = 0;
  *(uint8_t*)0x2000067a = 0;
  *(uint8_t*)0x2000067b = 0;
  *(uint8_t*)0x2000067c = 0;
  *(uint8_t*)0x2000067d = 0;
  *(uint8_t*)0x2000067e = 0;
  *(uint8_t*)0x2000067f = 0;
  *(uint8_t*)0x20000680 = 0;
  *(uint8_t*)0x20000681 = 0;
  *(uint8_t*)0x20000682 = 0;
  *(uint8_t*)0x20000683 = 0;
  *(uint32_t*)0x20000684 = 0;
  *(uint16_t*)0x20000688 = 0x70;
  *(uint16_t*)0x2000068a = 0xd0;
  *(uint32_t*)0x2000068c = 0;
  *(uint64_t*)0x20000690 = 0;
  *(uint64_t*)0x20000698 = 0;
  *(uint16_t*)0x200006a0 = 0x60;
  memcpy((void*)0x200006a2, "SET\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000",
         29);
  *(uint8_t*)0x200006bf = 0;
  *(uint16_t*)0x200006c0 = 0;
  *(uint32_t*)0x200006c4 = 0;
  *(uint32_t*)0x200006c8 = 0;
  *(uint32_t*)0x200006cc = 0;
  *(uint32_t*)0x200006d0 = 0;
  *(uint32_t*)0x200006d4 = 0;
  *(uint32_t*)0x200006d8 = 0;
  *(uint8_t*)0x200006dc = 0;
  *(uint8_t*)0x200006dd = 0;
  *(uint16_t*)0x200006e0 = 0;
  *(uint32_t*)0x200006e4 = 0;
  *(uint32_t*)0x200006e8 = 0;
  *(uint32_t*)0x200006ec = 0;
  *(uint32_t*)0x200006f0 = 0;
  *(uint32_t*)0x200006f4 = 0;
  *(uint32_t*)0x200006f8 = 0;
  *(uint8_t*)0x200006fc = 0;
  *(uint8_t*)0x200006fd = 0;
  *(uint8_t*)0x20000700 = 0;
  *(uint8_t*)0x20000701 = 0;
  *(uint8_t*)0x20000702 = 0;
  *(uint8_t*)0x20000703 = 0;
  *(uint8_t*)0x20000704 = 0;
  *(uint8_t*)0x20000705 = 0;
  *(uint8_t*)0x20000706 = 0;
  *(uint8_t*)0x20000707 = 0;
  *(uint8_t*)0x20000708 = 0;
  *(uint8_t*)0x20000709 = 0;
  *(uint8_t*)0x2000070a = 0;
  *(uint8_t*)0x2000070b = 0;
  *(uint8_t*)0x2000070c = 0;
  *(uint8_t*)0x2000070d = 0;
  *(uint8_t*)0x2000070e = 0;
  *(uint8_t*)0x2000070f = 0;
  *(uint8_t*)0x20000710 = 0;
  *(uint8_t*)0x20000711 = 0;
  *(uint8_t*)0x20000712 = 0;
  *(uint8_t*)0x20000713 = 0;
  *(uint8_t*)0x20000714 = 0;
  *(uint8_t*)0x20000715 = 0;
  *(uint8_t*)0x20000716 = 0;
  *(uint8_t*)0x20000717 = 0;
  *(uint8_t*)0x20000718 = 0;
  *(uint8_t*)0x20000719 = 0;
  *(uint8_t*)0x2000071a = 0;
  *(uint8_t*)0x2000071b = 0;
  *(uint8_t*)0x2000071c = 0;
  *(uint8_t*)0x2000071d = 0;
  *(uint8_t*)0x2000071e = 0;
  *(uint8_t*)0x2000071f = 0;
  *(uint8_t*)0x20000720 = 0;
  *(uint8_t*)0x20000721 = 0;
  *(uint8_t*)0x20000722 = 0;
  *(uint8_t*)0x20000723 = 0;
  *(uint8_t*)0x20000724 = 0;
  *(uint8_t*)0x20000725 = 0;
  *(uint8_t*)0x20000726 = 0;
  *(uint8_t*)0x20000727 = 0;
  *(uint8_t*)0x20000728 = 0;
  *(uint8_t*)0x20000729 = 0;
  *(uint8_t*)0x2000072a = 0;
  *(uint8_t*)0x2000072b = 0;
  *(uint8_t*)0x2000072c = 0;
  *(uint8_t*)0x2000072d = 0;
  *(uint8_t*)0x2000072e = 0;
  *(uint8_t*)0x2000072f = 0;
  *(uint8_t*)0x20000730 = 0;
  *(uint8_t*)0x20000731 = 0;
  *(uint8_t*)0x20000732 = 0;
  *(uint8_t*)0x20000733 = 0;
  *(uint8_t*)0x20000734 = 0;
  *(uint8_t*)0x20000735 = 0;
  *(uint8_t*)0x20000736 = 0;
  *(uint8_t*)0x20000737 = 0;
  *(uint8_t*)0x20000738 = 0;
  *(uint8_t*)0x20000739 = 0;
  *(uint8_t*)0x2000073a = 0;
  *(uint8_t*)0x2000073b = 0;
  *(uint8_t*)0x2000073c = 0;
  *(uint8_t*)0x2000073d = 0;
  *(uint8_t*)0x2000073e = 0;
  *(uint8_t*)0x2000073f = 0;
  *(uint8_t*)0x20000740 = 0;
  *(uint8_t*)0x20000741 = 0;
  *(uint8_t*)0x20000742 = 0;
  *(uint8_t*)0x20000743 = 0;
  *(uint8_t*)0x20000744 = 0;
  *(uint8_t*)0x20000745 = 0;
  *(uint8_t*)0x20000746 = 0;
  *(uint8_t*)0x20000747 = 0;
  *(uint8_t*)0x20000748 = 0;
  *(uint8_t*)0x20000749 = 0;
  *(uint8_t*)0x2000074a = 0;
  *(uint8_t*)0x2000074b = 0;
  *(uint8_t*)0x2000074c = 0;
  *(uint8_t*)0x2000074d = 0;
  *(uint8_t*)0x2000074e = 0;
  *(uint8_t*)0x2000074f = 0;
  *(uint8_t*)0x20000750 = 0;
  *(uint8_t*)0x20000751 = 0;
  *(uint8_t*)0x20000752 = 0;
  *(uint8_t*)0x20000753 = 0;
  *(uint32_t*)0x20000754 = 0;
  *(uint16_t*)0x20000758 = 0x70;
  *(uint16_t*)0x2000075a = 0x98;
  *(uint32_t*)0x2000075c = 0;
  *(uint64_t*)0x20000760 = 0;
  *(uint64_t*)0x20000768 = 0;
  *(uint16_t*)0x20000770 = 0x28;
  memcpy((void*)0x20000772, "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000\000\000\000\000\000\000\000"
                            "\000\000\000\000\000",
         29);
  *(uint8_t*)0x2000078f = 0;
  *(uint32_t*)0x20000790 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0xffffff0f00000000ul, 0x40ul, 0x20000380ul,
          0x418ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}