// https://syzkaller.appspot.com/bug?id=8f063539d4ecf1faf3132624b57a641e923ee25a
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1)

#define BITMASK_LEN_OFF(type, bf_off, bf_len)                                  \
  (type)(BITMASK_LEN(type, (bf_len)) << (bf_off))

#define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len)                      \
  if ((bf_off) == 0 && (bf_len) == 0) {                                        \
    *(type*)(addr) = (type)(val);                                              \
  } else {                                                                     \
    type new_val = *(type*)(addr);                                             \
    new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len));                     \
    new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off);          \
    *(type*)(addr) = new_val;                                                  \
  }

struct csum_inet {
  uint32_t acc;
};

static void csum_inet_init(struct csum_inet* csum)
{
  csum->acc = 0;
}

static void csum_inet_update(struct csum_inet* csum, const uint8_t* data,
                             size_t length)
{
  if (length == 0)
    return;
  size_t i;
  for (i = 0; i < length - 1; i += 2)
    csum->acc += *(uint16_t*)&data[i];
  if (length & 1)
    csum->acc += (uint16_t)data[length - 1];
  while (csum->acc > 0xffff)
    csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16);
}

static uint16_t csum_inet_digest(struct csum_inet* csum)
{
  return ~csum->acc;
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  long res = 0;
  memcpy((void*)0x200002c0, "/dev/kvm", 9);
  res = syscall(__NR_openat, 0xffffffffffffff9c, 0x200002c0, 0, 0);
  if (res != -1)
    r[0] = res;
  res = syscall(__NR_ioctl, r[0], 0xae01, 0);
  if (res != -1)
    r[1] = res;
  res = syscall(__NR_ioctl, r[1], 0xae41, 0);
  if (res != -1)
    r[2] = res;
  syscall(__NR_ioctl, r[2], 0x4080aebf, 0x20000ec0);
  syscall(__NR_socketpair, 1, 3, 0, 0x20000240);
  *(uint8_t*)0x20000000 = 1;
  *(uint8_t*)0x20000001 = 0x80;
  *(uint8_t*)0x20000002 = 0xc2;
  *(uint8_t*)0x20000003 = 0;
  *(uint8_t*)0x20000004 = 0;
  *(uint8_t*)0x20000005 = 0;
  *(uint8_t*)0x20000006 = 0xaa;
  *(uint8_t*)0x20000007 = 0xaa;
  *(uint8_t*)0x20000008 = 0xaa;
  *(uint8_t*)0x20000009 = 0xaa;
  *(uint8_t*)0x2000000a = 0xaa;
  *(uint8_t*)0x2000000b = 0xaa;
  *(uint16_t*)0x2000000c = htobe16(0x86dd);
  STORE_BY_BITMASK(uint8_t, 0x2000000e, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000000e, 6, 4, 4);
  memcpy((void*)0x2000000f, "\x8b\xba\x30", 3);
  *(uint16_t*)0x20000012 = htobe16(0x10);
  *(uint8_t*)0x20000014 = 0;
  *(uint8_t*)0x20000015 = 0;
  *(uint8_t*)0x20000016 = 0xfe;
  *(uint8_t*)0x20000017 = 0x80;
  *(uint8_t*)0x20000018 = 0;
  *(uint8_t*)0x20000019 = 0;
  *(uint8_t*)0x2000001a = 0x3c;
  *(uint8_t*)0x2000001b = 0;
  *(uint8_t*)0x2000001c = 0;
  *(uint8_t*)0x2000001d = 0;
  *(uint8_t*)0x2000001e = 0;
  *(uint8_t*)0x2000001f = 0;
  *(uint8_t*)0x20000020 = 0;
  *(uint8_t*)0x20000021 = 0;
  *(uint8_t*)0x20000022 = 0;
  *(uint8_t*)0x20000023 = 0;
  *(uint8_t*)0x20000024 = 0;
  *(uint8_t*)0x20000025 = 0xbb;
  *(uint8_t*)0x20000026 = 0;
  *(uint8_t*)0x20000027 = 0;
  *(uint8_t*)0x20000028 = 0;
  *(uint8_t*)0x20000029 = 0;
  *(uint8_t*)0x2000002a = 0;
  *(uint8_t*)0x2000002b = 0;
  *(uint8_t*)0x2000002c = 0;
  *(uint8_t*)0x2000002d = 0;
  *(uint8_t*)0x2000002e = 0;
  *(uint8_t*)0x2000002f = 0;
  *(uint8_t*)0x20000030 = 0;
  *(uint8_t*)0x20000031 = 0;
  *(uint8_t*)0x20000032 = 0;
  *(uint8_t*)0x20000033 = 0;
  *(uint8_t*)0x20000034 = 0;
  *(uint8_t*)0x20000035 = 0;
  *(uint16_t*)0x20000036 = htobe16(0);
  *(uint16_t*)0x20000038 = htobe16(0);
  *(uint8_t*)0x2000003a = 4;
  STORE_BY_BITMASK(uint8_t, 0x2000003b, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000003b, 0, 4, 4);
  *(uint16_t*)0x2000003c = htobe16(0);
  STORE_BY_BITMASK(uint8_t, 0x2000003e, 0, 0, 1);
  STORE_BY_BITMASK(uint8_t, 0x2000003e, 0, 1, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000003e, 0, 5, 3);
  memcpy((void*)0x2000003f, "\x8c\xda\x8b", 3);
  *(uint8_t*)0x20000042 = 0;
  memcpy((void*)0x20000043, "\x1b\xc6\x01", 3);
  *(uint32_t*)0x20000180 = 0;
  *(uint32_t*)0x20000184 = 0;
  *(uint32_t*)0x20000188 = 0;
  *(uint32_t*)0x2000018c = 0;
  *(uint32_t*)0x20000190 = 0;
  *(uint32_t*)0x20000194 = 0;
  struct csum_inet csum_1;
  csum_inet_init(&csum_1);
  csum_inet_update(&csum_1, (const uint8_t*)0x0, 16);
  csum_inet_update(&csum_1, (const uint8_t*)0x0, 16);
  uint32_t csum_1_chunk_2 = 0x10000000;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_2, 4);
  uint32_t csum_1_chunk_3 = 0x21000000;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_3, 4);
  csum_inet_update(&csum_1, (const uint8_t*)0x0, 16);
  *(uint16_t*)0x2000003c = csum_inet_digest(&csum_1);
  syscall(__NR_ioctl, -1, 0x8912, 0x400200);
  syscall(__NR_socketpair, 1, 3, 0, 0x20000240);
  syscall(__NR_ioctl, -1, 0x8912, 0x400200);
  *(uint32_t*)0x20001000 = 0x10000;
  *(uint32_t*)0x20001004 = 4;
  *(uint32_t*)0x20001008 = 0x100;
  *(uint32_t*)0x2000100c = 0x400;
  syscall(__NR_setsockopt, -1, 0x84, 0, 0x20001000, 6);
  syscall(__NR_socket, 0x11, 0x80002, 0);
  return 0;
}