// https://syzkaller.appspot.com/bug?id=a32c36be2bec5ba891df34596cd99b12566e60df
// 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>

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);
  for (int 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 = 0;
  for (;; 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 < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000100, "/dev/uinput\000", 12);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000100ul,
                /*flags=*/0x2000805ul, /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000400,
         "syz1\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",
         80);
  *(uint16_t*)0x20000450 = 0;
  *(uint16_t*)0x20000452 = 0;
  *(uint16_t*)0x20000454 = 0;
  *(uint16_t*)0x20000456 = 0;
  *(uint32_t*)0x20000458 = 0;
  *(uint32_t*)0x2000045c = 0;
  *(uint32_t*)0x20000460 = 0;
  *(uint32_t*)0x20000464 = 0;
  *(uint32_t*)0x20000468 = 0;
  *(uint32_t*)0x2000046c = 0;
  *(uint32_t*)0x20000470 = 0;
  *(uint32_t*)0x20000474 = 0;
  *(uint32_t*)0x20000478 = 0;
  *(uint32_t*)0x2000047c = 0;
  *(uint32_t*)0x20000480 = 0;
  *(uint32_t*)0x20000484 = 0;
  *(uint32_t*)0x20000488 = 0;
  *(uint32_t*)0x2000048c = 0;
  *(uint32_t*)0x20000490 = 0;
  *(uint32_t*)0x20000494 = 0;
  *(uint32_t*)0x20000498 = 0;
  *(uint32_t*)0x2000049c = 0;
  *(uint32_t*)0x200004a0 = 0;
  *(uint32_t*)0x200004a4 = 0;
  *(uint32_t*)0x200004a8 = 0;
  *(uint32_t*)0x200004ac = 0;
  *(uint32_t*)0x200004b0 = 0;
  *(uint32_t*)0x200004b4 = 0;
  *(uint32_t*)0x200004b8 = 0;
  *(uint32_t*)0x200004bc = 0;
  *(uint32_t*)0x200004c0 = 0;
  *(uint32_t*)0x200004c4 = 0;
  *(uint32_t*)0x200004c8 = 0;
  *(uint32_t*)0x200004cc = 0;
  *(uint32_t*)0x200004d0 = 0;
  *(uint32_t*)0x200004d4 = 0;
  *(uint32_t*)0x200004d8 = 0;
  *(uint32_t*)0x200004dc = 0;
  *(uint32_t*)0x200004e0 = 0;
  *(uint32_t*)0x200004e4 = 0;
  *(uint32_t*)0x200004e8 = 0;
  *(uint32_t*)0x200004ec = 0;
  *(uint32_t*)0x200004f0 = 0;
  *(uint32_t*)0x200004f4 = 0;
  *(uint32_t*)0x200004f8 = 0;
  *(uint32_t*)0x200004fc = 0;
  *(uint32_t*)0x20000500 = 0;
  *(uint32_t*)0x20000504 = 0;
  *(uint32_t*)0x20000508 = 0;
  *(uint32_t*)0x2000050c = 0;
  *(uint32_t*)0x20000510 = 0;
  *(uint32_t*)0x20000514 = 0;
  *(uint32_t*)0x20000518 = 0;
  *(uint32_t*)0x2000051c = 0;
  *(uint32_t*)0x20000520 = 0;
  *(uint32_t*)0x20000524 = 0;
  *(uint32_t*)0x20000528 = 0;
  *(uint32_t*)0x2000052c = 0;
  *(uint32_t*)0x20000530 = 0;
  *(uint32_t*)0x20000534 = 0;
  *(uint32_t*)0x20000538 = 0;
  *(uint32_t*)0x2000053c = 0;
  *(uint32_t*)0x20000540 = 0;
  *(uint32_t*)0x20000544 = 0;
  *(uint32_t*)0x20000548 = 0;
  *(uint32_t*)0x2000054c = 0;
  *(uint32_t*)0x20000550 = 0;
  *(uint32_t*)0x20000554 = 0;
  *(uint32_t*)0x20000558 = 0;
  *(uint32_t*)0x2000055c = 0;
  *(uint32_t*)0x20000560 = 0;
  *(uint32_t*)0x20000564 = 0;
  *(uint32_t*)0x20000568 = 0;
  *(uint32_t*)0x2000056c = 0;
  *(uint32_t*)0x20000570 = 0;
  *(uint32_t*)0x20000574 = 0;
  *(uint32_t*)0x20000578 = 0;
  *(uint32_t*)0x2000057c = 0;
  *(uint32_t*)0x20000580 = 0;
  *(uint32_t*)0x20000584 = 0;
  *(uint32_t*)0x20000588 = 0;
  *(uint32_t*)0x2000058c = 0;
  *(uint32_t*)0x20000590 = 0;
  *(uint32_t*)0x20000594 = 0;
  *(uint32_t*)0x20000598 = 0;
  *(uint32_t*)0x2000059c = 0;
  *(uint32_t*)0x200005a0 = 0;
  *(uint32_t*)0x200005a4 = 0;
  *(uint32_t*)0x200005a8 = 0;
  *(uint32_t*)0x200005ac = 0;
  *(uint32_t*)0x200005b0 = 0;
  *(uint32_t*)0x200005b4 = 0;
  *(uint32_t*)0x200005b8 = 0;
  *(uint32_t*)0x200005bc = 0;
  *(uint32_t*)0x200005c0 = 0;
  *(uint32_t*)0x200005c4 = 0;
  *(uint32_t*)0x200005c8 = 0;
  *(uint32_t*)0x200005cc = 0;
  *(uint32_t*)0x200005d0 = 0;
  *(uint32_t*)0x200005d4 = 0;
  *(uint32_t*)0x200005d8 = 0;
  *(uint32_t*)0x200005dc = 0;
  *(uint32_t*)0x200005e0 = 0;
  *(uint32_t*)0x200005e4 = 0;
  *(uint32_t*)0x200005e8 = 0;
  *(uint32_t*)0x200005ec = 0;
  *(uint32_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;
  *(uint32_t*)0x2000060c = 0;
  *(uint32_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 = 0;
  *(uint32_t*)0x2000062c = 0;
  *(uint32_t*)0x20000630 = 0;
  *(uint32_t*)0x20000634 = 0;
  *(uint32_t*)0x20000638 = 0;
  *(uint32_t*)0x2000063c = 0;
  *(uint32_t*)0x20000640 = 0;
  *(uint32_t*)0x20000644 = 0;
  *(uint32_t*)0x20000648 = 0;
  *(uint32_t*)0x2000064c = 0;
  *(uint32_t*)0x20000650 = 0;
  *(uint32_t*)0x20000654 = 0;
  *(uint32_t*)0x20000658 = 0;
  *(uint32_t*)0x2000065c = 0;
  *(uint32_t*)0x20000660 = 0;
  *(uint32_t*)0x20000664 = 0;
  *(uint32_t*)0x20000668 = 0;
  *(uint32_t*)0x2000066c = 0;
  *(uint32_t*)0x20000670 = 0;
  *(uint32_t*)0x20000674 = 0;
  *(uint32_t*)0x20000678 = 0;
  *(uint32_t*)0x2000067c = 0;
  *(uint32_t*)0x20000680 = 0;
  *(uint32_t*)0x20000684 = 0;
  *(uint32_t*)0x20000688 = 0;
  *(uint32_t*)0x2000068c = 0;
  *(uint32_t*)0x20000690 = 0;
  *(uint32_t*)0x20000694 = 0;
  *(uint32_t*)0x20000698 = 0;
  *(uint32_t*)0x2000069c = 0;
  *(uint32_t*)0x200006a0 = 0;
  *(uint32_t*)0x200006a4 = 0;
  *(uint32_t*)0x200006a8 = 0;
  *(uint32_t*)0x200006ac = 0;
  *(uint32_t*)0x200006b0 = 0;
  *(uint32_t*)0x200006b4 = 0;
  *(uint32_t*)0x200006b8 = 0;
  *(uint32_t*)0x200006bc = 0;
  *(uint32_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;
  *(uint32_t*)0x200006dc = 0;
  *(uint32_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;
  *(uint32_t*)0x200006fc = 0;
  *(uint32_t*)0x20000700 = 0;
  *(uint32_t*)0x20000704 = 0;
  *(uint32_t*)0x20000708 = 0;
  *(uint32_t*)0x2000070c = 0;
  *(uint32_t*)0x20000710 = 0;
  *(uint32_t*)0x20000714 = 0;
  *(uint32_t*)0x20000718 = 0;
  *(uint32_t*)0x2000071c = 0;
  *(uint32_t*)0x20000720 = 0;
  *(uint32_t*)0x20000724 = 0;
  *(uint32_t*)0x20000728 = 0;
  *(uint32_t*)0x2000072c = 0;
  *(uint32_t*)0x20000730 = 0;
  *(uint32_t*)0x20000734 = 0;
  *(uint32_t*)0x20000738 = 0;
  *(uint32_t*)0x2000073c = 0;
  *(uint32_t*)0x20000740 = 0;
  *(uint32_t*)0x20000744 = 0;
  *(uint32_t*)0x20000748 = 0;
  *(uint32_t*)0x2000074c = 0;
  *(uint32_t*)0x20000750 = 0;
  *(uint32_t*)0x20000754 = 0;
  *(uint32_t*)0x20000758 = 0;
  *(uint32_t*)0x2000075c = 0;
  *(uint32_t*)0x20000760 = 0;
  *(uint32_t*)0x20000764 = 0;
  *(uint32_t*)0x20000768 = 0;
  *(uint32_t*)0x2000076c = 0;
  *(uint32_t*)0x20000770 = 0;
  *(uint32_t*)0x20000774 = 0;
  *(uint32_t*)0x20000778 = 0;
  *(uint32_t*)0x2000077c = 0;
  *(uint32_t*)0x20000780 = 0;
  *(uint32_t*)0x20000784 = 0;
  *(uint32_t*)0x20000788 = 0;
  *(uint32_t*)0x2000078c = 0;
  *(uint32_t*)0x20000790 = 0;
  *(uint32_t*)0x20000794 = 0;
  *(uint32_t*)0x20000798 = 0;
  *(uint32_t*)0x2000079c = 0;
  *(uint32_t*)0x200007a0 = 0;
  *(uint32_t*)0x200007a4 = 0;
  *(uint32_t*)0x200007a8 = 0;
  *(uint32_t*)0x200007ac = 0;
  *(uint32_t*)0x200007b0 = 0;
  *(uint32_t*)0x200007b4 = 0;
  *(uint32_t*)0x200007b8 = 0;
  *(uint32_t*)0x200007bc = 0;
  *(uint32_t*)0x200007c0 = 0;
  *(uint32_t*)0x200007c4 = 0;
  *(uint32_t*)0x200007c8 = 0;
  *(uint32_t*)0x200007cc = 0;
  *(uint32_t*)0x200007d0 = 0;
  *(uint32_t*)0x200007d4 = 0;
  *(uint32_t*)0x200007d8 = 0;
  *(uint32_t*)0x200007dc = 0;
  *(uint32_t*)0x200007e0 = 0;
  *(uint32_t*)0x200007e4 = 0;
  *(uint32_t*)0x200007e8 = 0;
  *(uint32_t*)0x200007ec = 0;
  *(uint32_t*)0x200007f0 = 0;
  *(uint32_t*)0x200007f4 = 0;
  *(uint32_t*)0x200007f8 = 0;
  *(uint32_t*)0x200007fc = 0;
  *(uint32_t*)0x20000800 = 0;
  *(uint32_t*)0x20000804 = 0;
  *(uint32_t*)0x20000808 = 0;
  *(uint32_t*)0x2000080c = 0;
  *(uint32_t*)0x20000810 = 0;
  *(uint32_t*)0x20000814 = 0;
  *(uint32_t*)0x20000818 = 0;
  *(uint32_t*)0x2000081c = 0;
  *(uint32_t*)0x20000820 = 0;
  *(uint32_t*)0x20000824 = 0;
  *(uint32_t*)0x20000828 = 0;
  *(uint32_t*)0x2000082c = 0;
  *(uint32_t*)0x20000830 = 0;
  *(uint32_t*)0x20000834 = 0;
  *(uint32_t*)0x20000838 = 0;
  *(uint32_t*)0x2000083c = 0;
  *(uint32_t*)0x20000840 = 0;
  *(uint32_t*)0x20000844 = 0;
  *(uint32_t*)0x20000848 = 0;
  *(uint32_t*)0x2000084c = 0;
  *(uint32_t*)0x20000850 = 0;
  *(uint32_t*)0x20000854 = 0;
  *(uint32_t*)0x20000858 = 0;
  syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20000400ul, /*len=*/0x45cul);
  res = syscall(__NR_dup, /*oldfd=*/r[0]);
  if (res != -1)
    r[1] = res;
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x4004556d, /*arg=*/3ul);
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x40045564, /*arg=*/5ul);
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x5501, /*arg=*/0ul);
  memcpy((void*)0x200002c0, "/dev/virtual_nci\000", 17);
  syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200002c0ul,
          /*flags=*/2ul, /*mode=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  loop();
  return 0;
}