// https://syzkaller.appspot.com/bug?id=4006bcda50967d109d7512134751ca8fb84d393f
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <unistd.h>

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()
{
  while (1) {
    test();
  }
}

#ifndef __NR_ioctl
#define __NR_ioctl 54
#endif
#ifndef __NR_memfd_create
#define __NR_memfd_create 356
#endif
#ifndef __NR_mmap
#define __NR_mmap 192
#endif
#undef __NR_mmap
#define __NR_mmap __NR_mmap2

long r[3];
void test()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
  memcpy((void*)0x20e6aff5, "/dev/loop#", 11);
  r[0] = syz_open_dev(0x20e6aff5, 0, 0);
  *(uint32_t*)0x20a19f74 = 0;
  *(uint32_t*)0x20a19f78 = 0;
  *(uint32_t*)0x20a19f7c = 0;
  *(uint32_t*)0x20a19f80 = 0;
  *(uint32_t*)0x20a19f84 = 1;
  *(uint32_t*)0x20a19f88 = 0;
  *(uint32_t*)0x20a19f8c = 5;
  *(uint32_t*)0x20a19f90 = 8;
  memcpy((void*)0x20a19f94,
         "\x2d\x40\xac\xaa\x6a\x60\x61\x01\x80\xfd\x8d\x61\x80\x37\xe6\xe7\xfe"
         "\x07\x8d\x8e\xcb\xfa\x12\xbb\xf5\x3c\xe2\x39\xdb\x16\xb7\xa6\x18\x6c"
         "\x8f\xb5\x52\x23\x22\x27\x33\x3f\x70\xa3\xce\x50\x2b\x0c\xc9\x88\x83"
         "\xed\x0e\xbc\x07\x6c\xba\x34\x7c\xb2\x4c\xf1\xc3\x37",
         64);
  memcpy((void*)0x20a19fd4, "\x0c\x6e\xc4\xf4\x64\xda\x36\x04\x6e\x70\xfa\xa4"
                            "\xc9\x67\x14\xf1\x7d\xb6\x15\x3d\xea\xe7\xcf\xb7"
                            "\x0e\xaf\xb5\x18\x9b\xa1\x95\x56",
         32);
  *(uint32_t*)0x20a19ff4 = -1;
  *(uint32_t*)0x20a19ff8 = 8;
  *(uint32_t*)0x20a19ffc = 0;
  syscall(__NR_ioctl, r[0], 0x4c02, 0x20a19f74);
  memcpy((void*)0x20e6aff5, "/dev/loop#", 11);
  r[1] = syz_open_dev(0x20e6aff5, 0, 0x101100);
  memcpy((void*)0x20515ff0,
         "\x74\x75\x6e\x08\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00",
         16);
  r[2] = syscall(__NR_memfd_create, 0x20515ff0, 0);
  syscall(__NR_ioctl, r[1], 0x4c00, r[2]);
}

int main()
{
  for (;;) {
    loop();
  }
}