// https://syzkaller.appspot.com/bug?id=34d6eff1a81c4a5a1b721d9f141461275362a008
// 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/ioctl.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 long syz_open_pts(volatile long a0, volatile long a1)
{
  int ptyno = 0;
  if (ioctl(a0, TIOCGPTN, &ptyno))
    return -1;
  char buf[128];
  sprintf(buf, "/dev/pts/%d", ptyno);
  return open(buf, a1, 0);
}

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) {
  }
}

#define SYZ_HAVE_SETUP_TEST 1
static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

#define SYZ_HAVE_RESET_TEST 1
static void reset_test()
{
  int fd;
  for (fd = 3; fd < 30; fd++)
    close(fd);
}

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();
      reset_test();
      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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  long res = 0;
  memcpy((void*)0x20000000, "/dev/ptmx\000", 10);
  res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 0, 0);
  if (res != -1)
    r[0] = res;
  res = syz_open_pts(r[0], 0x757667ef2940bc9a);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x200006c0 = 0x9c;
  *(uint8_t*)0x200006c4 = 0x7d;
  *(uint16_t*)0x200006c5 = 0;
  *(uint16_t*)0x200006c7 = 0;
  *(uint16_t*)0x200006c9 = 0x86;
  *(uint16_t*)0x200006cb = 0;
  *(uint32_t*)0x200006cd = 0;
  *(uint8_t*)0x200006d1 = 0;
  *(uint32_t*)0x200006d2 = 0;
  *(uint64_t*)0x200006d6 = 0;
  *(uint32_t*)0x200006de = 0;
  *(uint32_t*)0x200006e2 = 0;
  *(uint32_t*)0x200006e6 = 0;
  *(uint64_t*)0x200006ea = 0;
  *(uint16_t*)0x200006f2 = 0x18;
  memcpy((void*)0x200006f4, "trustednodevcgroupwlan1^", 24);
  *(uint16_t*)0x2000070c = 0xd;
  memcpy((void*)0x2000070e, "em0vmnet0lo\'{", 13);
  *(uint16_t*)0x2000071b = 0x10;
  memcpy((void*)0x2000071d, "posix_acl_access", 16);
  *(uint16_t*)0x2000072d = 0xe;
  memcpy((void*)0x2000072f, "-system\'wlan1-trus\000ed\'#keyring", 30);
  *(uint16_t*)0x2000074d = 1;
  memcpy((void*)0x2000074f, "\000", 1);
  *(uint32_t*)0x20000750 = 0;
  *(uint32_t*)0x20000754 = 0;
  *(uint32_t*)0x20000758 = 0;
  syscall(__NR_write, r[1], 0x200006c0, 0x9c);
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}