// https://syzkaller.appspot.com/bug?id=a233f390d878f6525f60f0b15802432bd9e1fb6f
// 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);
  }
}

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

long r[3];
void loop()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
  memcpy((void*)0x20fb6000, "/dev/loop#", 11);
  r[0] = syz_open_dev(0x20fb6000, 0, 0x80080002);
  memcpy((void*)0x20d55ffd, "$'", 3);
  r[1] = syscall(__NR_memfd_create, 0x20d55ffd, 0);
  syscall(__NR_ioctl, r[0], 0x4c00, r[1]);
  memcpy((void*)0x20000000, "/dev/loop#", 11);
  r[2] = syz_open_dev(0x20000000, 0, 0);
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint32_t*)0x20000010 = 0;
  *(uint32_t*)0x20000014 = 0;
  *(uint32_t*)0x20000018 = 0;
  *(uint32_t*)0x2000001c = 0xfffffffe;
  memcpy((void*)0x20000020,
         "\x21\xdb\xba\x96\x24\x54\x28\x1a\xc1\x4a\x7e\x86\x91\x0f\x46\x72\x51"
         "\x8a\xc2\x89\x90\x1e\x47\x2e\x1a\xad\xf2\x83\x33\xb7\xad\xf2\xe3\x2e"
         "\xb8\x7a\x81\x3c\xff\xff\xff\x07\x00\xff\xff\xfd\x75\x8a\xc0\x64\x9e"
         "\x0e\xba\x37\x3d\xa4\x80\x25\x4f\x8e\xc7\x00\x94\xac",
         64);
  memcpy((void*)0x20000060, "\xf2\x31\x96\xfc\x66\x50\xfa\x74\x62\x6a\x57\xcb"
                            "\xde\xfa\xff\x63\xc3\xd3\xdb\x8d\xbc\x9e\xd6\xd8"
                            "\x5c\x84\xa7\xc1\x5c\x81\x3d\x8c",
         32);
  *(uint32_t*)0x20000080 = 0;
  *(uint32_t*)0x20000084 = 0;
  *(uint32_t*)0x20000088 = 0;
  syscall(__NR_ioctl, r[2], 0x4c02, 0x20000000);
}

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