// https://syzkaller.appspot.com/bug?id=d932bb61fb530dc6816b87b4649f3b6925f51026
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdio.h>
#include <sys/prctl.h>
#include <sys/stat.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 <stdint.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 uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block",
            (uint8_t)a1, (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf));
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

static void test();

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();
      test();
      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 > 5 * 1000) {
        kill(-pid, SIGKILL);
        kill(pid, SIGKILL);
        while (waitpid(-1, &status, __WALL) != pid) {
        }
        break;
      }
    }
  }
}

long r[17];
void test()
{
  memset(r, -1, sizeof(r));
  r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
                 0xfffffffffffffffful, 0x0ul);
  memcpy((void*)0x2030efee, "\x2f\x64\x65\x76\x2f\x6c\x6f\x6f\x70\x2d"
                            "\x63\x6f\x6e\x74\x72\x6f\x6c\x00",
         18);
  r[2] = syscall(__NR_openat, 0xffffffffffffff9cul, 0x2030efeeul,
                 0x20000ul, 0x0ul);
  r[3] = syscall(__NR_ioctl, r[2], 0x4c82ul);
  *(uint32_t*)0x209dcff4 = (uint32_t)0x0;
  *(uint32_t*)0x209dcff8 = (uint32_t)0x4360;
  *(uint16_t*)0x209dcffc = (uint16_t)0x30;
  *(uint32_t*)0x203fc000 = (uint32_t)0xc;
  r[8] = syscall(__NR_getsockopt, 0xfffffffffffffffful, 0x84ul, 0x72ul,
                 0x209dcff4ul, 0x203fc000ul);
  *(uint32_t*)0x204d0ffc = (uint32_t)0x0;
  r[10] = syscall(__NR_ioctl, 0xfffffffffffffffful, 0x400454cbul,
                  0x204d0ffcul);
  *(uint32_t*)0x20155ffc = (uint32_t)0x14;
  r[12] = syscall(__NR_getsockname, 0xfffffffffffffffful, 0x20507ff1ul,
                  0x20155ffcul);
  memcpy((void*)0x2086eff5,
         "\x2f\x64\x65\x76\x2f\x6c\x6f\x6f\x70\x23\x00", 11);
  r[14] = syz_open_dev(0x2086eff5ul, 0xffful, 0x101081ul);
  r[15] = syscall(__NR_ioctl, r[2], 0x4c81ul, r[3]);
  r[16] = syscall(__NR_clock_gettime, 0x1ul, 0x20b36ff0ul);
}

int main()
{
  int i;
  for (i = 0; i < 8; i++) {
    if (fork() == 0) {
      loop();
      return 0;
    }
  }
  sleep(1000000);
  return 0;
}