// https://syzkaller.appspot.com/bug?id=8fba766ebc0cb4586325380ed578c469fa92de44
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <sys/syscall.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 <stdlib.h>
#include <string.h>
#include <sys/stat.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 void use_temporary_dir()
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    fail("failed to mkdtemp");
  if (chmod(tmpdir, 0777))
    fail("failed to chmod");
  if (chdir(tmpdir))
    fail("failed to chdir");
}

long r[13];
void loop()
{
  memset(r, -1, sizeof(r));
  r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
                 0xfffffffffffffffful, 0x0ul);
  memcpy((void*)0x20000ff7, "\x2f\x64\x65\x76\x2f\x6b\x76\x6d\x00", 9);
  r[2] = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000ff7ul, 0x0ul,
                 0x0ul);
  r[3] = syscall(__NR_ioctl, r[2], 0xae01ul, 0x0ul);
  r[4] = syscall(__NR_ioctl, r[3], 0xae41ul, 0x0ul);
  *(uint32_t*)0x20001000 = (uint32_t)0x0;
  *(uint32_t*)0x20001004 = (uint32_t)0x3;
  *(uint64_t*)0x20001008 = (uint64_t)0x0;
  *(uint64_t*)0x20001010 = (uint64_t)0x2000;
  *(uint64_t*)0x20001018 = (uint64_t)0x20000000;
  r[10] = syscall(__NR_ioctl, r[3], 0x4020ae46ul, 0x20001000ul);
  r[11] = syscall(__NR_ioctl, r[4], 0xae80ul, 0x0ul);
  r[12] = syscall(__NR_ioctl, r[4], 0xae80ul, 0x0ul);
}

int main()
{
  use_temporary_dir();
  loop();
  return 0;
}