// https://syzkaller.appspot.com/bug?id=4522c4fb3896c243a66d4bda935f828e80899c2c
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#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");
}

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);
  }
}

#ifndef __NR_mmap
#define __NR_mmap 192
#endif
#ifndef __NR_write
#define __NR_write 4
#endif
#ifndef __NR_readv
#define __NR_readv 145
#endif
#undef __NR_mmap
#define __NR_mmap __NR_mmap2

long r[1];
void loop()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfb1000, 0x3, 0x32, 0xffffffff, 0x0);
  memcpy((void*)0x2002a000, "/dev/sg#", 9);
  r[0] = syz_open_dev(0x2002a000, 0x0, 0x142);
  memcpy((void*)0x20016f2f,
         "\xae\x68\xb4\x1f\xaf\x67\x33\xc7\x68\xd9\xc7\x7d\x27\x4a\xb3"
         "\xd6\x7d\xba\xa0\x10\x44\xc0\xd2\x66\x18\x82\x9a\x68\xb0\x1b"
         "\x6e\x8d\xec\xa9\x3b\x15\x9d\x00\xb4\x42\x48\x6f\x36\x2b\x69"
         "\x6d\x4a\x1d\x3b\x24\x76\x08\x8d\xbc\xbf\xae\x2b\x59\x28\x39"
         "\x71\x77\x5e\x7b\xfe\x1a\x71\x83\xbd\xb4\x45\x2a\x9c\xc9\x51"
         "\x85\x13\x48\x92\x51\x16\x42\x2e\x2c\x04\xeb\x79\xb4",
         88);
  syscall(__NR_write, r[0], 0x20016f2f, 0x58);
  *(uint32_t*)0x20006000 = 0x20001000;
  *(uint32_t*)0x20006004 = 0x5b;
  *(uint32_t*)0x20006008 = 0x2002cf2c;
  *(uint32_t*)0x2000600c = 0x0;
  *(uint32_t*)0x20006010 = 0x20013000;
  *(uint32_t*)0x20006014 = 0x0;
  *(uint32_t*)0x20006018 = 0x2002cf37;
  *(uint32_t*)0x2000601c = 0x0;
  *(uint32_t*)0x20006020 = 0x2001df6f;
  *(uint32_t*)0x20006024 = 0x0;
  *(uint32_t*)0x20006028 = 0x20001fd7;
  *(uint32_t*)0x2000602c = 0x0;
  *(uint32_t*)0x20006030 = 0x2002cf6b;
  *(uint32_t*)0x20006034 = 0x0;
  *(uint32_t*)0x20006038 = 0x20001f75;
  *(uint32_t*)0x2000603c = 0x0;
  syscall(__NR_readv, r[0], 0x20006000, 0x8);
}

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