// https://syzkaller.appspot.com/bug?id=6fd7f3e5c58ffd7e7c8e1a85368715ccc3bae513
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <stdint.h>
#include <string.h>
#include <sys/syscall.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;
}

static void execute_one();
extern unsigned long long procid;

void loop()
{
  while (1) {
    execute_one();
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_one()
{
  long res = 0;
  res = syscall(__NR_socket, 0xa, 0x40000080806, 0);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x2047b000 = 0xa;
  *(uint16_t*)0x2047b002 = htobe16(0x4e20);
  *(uint32_t*)0x2047b004 = 0;
  *(uint64_t*)0x2047b008 = htobe64(0);
  *(uint64_t*)0x2047b010 = htobe64(1);
  *(uint32_t*)0x2047b018 = 0;
  syscall(__NR_bind, r[0], 0x2047b000, 0x1c);
  syscall(__NR_listen, r[0], 0x80001003);
  res = syscall(__NR_socket, 0xa, 6, 0);
  if (res != -1)
    r[1] = res;
  *(uint16_t*)0x20419000 = 0xa;
  *(uint16_t*)0x20419002 = htobe16(0x4e20);
  *(uint32_t*)0x20419004 = 0;
  *(uint64_t*)0x20419008 = htobe64(0);
  *(uint64_t*)0x20419010 = htobe64(1);
  *(uint32_t*)0x20419018 = 0;
  syscall(__NR_connect, r[1], 0x20419000, 0x1c);
  *(uint32_t*)0x20000700 = 0;
  res = syscall(__NR_accept, r[0], 0, 0x20000700);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000300 = 0x20000080;
  *(uint16_t*)0x20000080 = 0x10;
  *(uint16_t*)0x20000082 = 0;
  *(uint32_t*)0x20000084 = 0;
  *(uint32_t*)0x20000088 = 0x2010;
  *(uint32_t*)0x20000308 = 0xc;
  *(uint64_t*)0x20000310 = 0x200002c0;
  *(uint64_t*)0x200002c0 = 0x20000100;
  *(uint32_t*)0x20000100 = 0x110;
  *(uint16_t*)0x20000104 = 0;
  *(uint16_t*)0x20000106 = 0;
  *(uint32_t*)0x20000108 = 0x70bd2d;
  *(uint32_t*)0x2000010c = 0x25dfdbff;
  *(uint8_t*)0x20000110 = 0xc;
  *(uint8_t*)0x20000111 = 0;
  *(uint16_t*)0x20000112 = 0;
  *(uint16_t*)0x20000114 = 8;
  *(uint16_t*)0x20000116 = 4;
  *(uint32_t*)0x20000118 = -1;
  *(uint16_t*)0x2000011c = 8;
  *(uint16_t*)0x2000011e = 5;
  *(uint32_t*)0x20000120 = 9;
  *(uint16_t*)0x20000124 = 8;
  *(uint16_t*)0x20000126 = 4;
  *(uint32_t*)0x20000128 = 1;
  *(uint16_t*)0x2000012c = 0x6c;
  *(uint16_t*)0x2000012e = 2;
  *(uint16_t*)0x20000130 = 8;
  *(uint16_t*)0x20000132 = 6;
  *(uint32_t*)0x20000134 = 0xa95;
  *(uint16_t*)0x20000138 = 8;
  *(uint16_t*)0x2000013a = 5;
  *(uint32_t*)0x2000013c = 6;
  *(uint16_t*)0x20000140 = 8;
  *(uint16_t*)0x20000142 = 9;
  *(uint32_t*)0x20000144 = 9;
  *(uint16_t*)0x20000148 = 8;
  *(uint16_t*)0x2000014a = 7;
  *(uint32_t*)0x2000014c = 0x61;
  *(uint16_t*)0x20000150 = 8;
  *(uint16_t*)0x20000152 = 7;
  *(uint32_t*)0x20000154 = 0x200;
  *(uint16_t*)0x20000158 = 8;
  *(uint16_t*)0x2000015a = 0xb;
  *(uint16_t*)0x2000015c = 0xa;
  *(uint16_t*)0x20000160 = 8;
  *(uint16_t*)0x20000162 = 3;
  *(uint16_t*)0x20000164 = 1;
  *(uint16_t*)0x20000168 = 8;
  *(uint16_t*)0x2000016a = 0xb;
  *(uint16_t*)0x2000016c = 0xa;
  *(uint16_t*)0x20000170 = 0x14;
  *(uint16_t*)0x20000172 = 1;
  *(uint8_t*)0x20000174 = 0xac;
  *(uint8_t*)0x20000175 = 0x14;
  *(uint8_t*)0x20000176 = 0x14;
  *(uint8_t*)0x20000177 = 0xbb;
  *(uint16_t*)0x20000184 = 0x14;
  *(uint16_t*)0x20000186 = 1;
  *(uint8_t*)0x20000188 = 0xfe;
  *(uint8_t*)0x20000189 = 0x80;
  *(uint8_t*)0x2000018a = 0;
  *(uint8_t*)0x2000018b = 0;
  *(uint8_t*)0x2000018c = 0;
  *(uint8_t*)0x2000018d = 0;
  *(uint8_t*)0x2000018e = 0;
  *(uint8_t*)0x2000018f = 0;
  *(uint8_t*)0x20000190 = 0;
  *(uint8_t*)0x20000191 = 0;
  *(uint8_t*)0x20000192 = 0;
  *(uint8_t*)0x20000193 = 0;
  *(uint8_t*)0x20000194 = 0;
  *(uint8_t*)0x20000195 = 0;
  *(uint8_t*)0x20000196 = 0;
  *(uint8_t*)0x20000197 = 0xaa;
  *(uint16_t*)0x20000198 = 0x30;
  *(uint16_t*)0x2000019a = 3;
  *(uint16_t*)0x2000019c = 0x14;
  *(uint16_t*)0x2000019e = 6;
  *(uint64_t*)0x200001a0 = htobe64(0);
  *(uint64_t*)0x200001a8 = htobe64(1);
  *(uint16_t*)0x200001b0 = 8;
  *(uint16_t*)0x200001b2 = 7;
  *(uint16_t*)0x200001b4 = htobe16(0x4e21);
  *(uint16_t*)0x200001b8 = 8;
  *(uint16_t*)0x200001ba = 1;
  *(uint32_t*)0x200001bc = 0;
  *(uint16_t*)0x200001c0 = 8;
  *(uint16_t*)0x200001c2 = 4;
  *(uint16_t*)0x200001c4 = 0;
  *(uint16_t*)0x200001c8 = 8;
  *(uint16_t*)0x200001ca = 5;
  *(uint32_t*)0x200001cc = 1;
  *(uint16_t*)0x200001d0 = 0x2c;
  *(uint16_t*)0x200001d2 = 2;
  *(uint16_t*)0x200001d4 = 8;
  *(uint16_t*)0x200001d6 = 5;
  *(uint32_t*)0x200001d8 = 0x401;
  *(uint16_t*)0x200001dc = 8;
  *(uint16_t*)0x200001de = 4;
  *(uint32_t*)0x200001e0 = 5;
  *(uint16_t*)0x200001e4 = 8;
  *(uint16_t*)0x200001e6 = 9;
  *(uint32_t*)0x200001e8 = 6;
  *(uint16_t*)0x200001ec = 8;
  *(uint16_t*)0x200001ee = 9;
  *(uint32_t*)0x200001f0 = 0x353;
  *(uint16_t*)0x200001f4 = 8;
  *(uint16_t*)0x200001f6 = 0xb;
  *(uint16_t*)0x200001f8 = 0xa;
  *(uint16_t*)0x200001fc = 0xc;
  *(uint16_t*)0x200001fe = 1;
  *(uint16_t*)0x20000200 = 8;
  *(uint16_t*)0x20000202 = 6;
  memcpy((void*)0x20000204, "fo", 3);
  *(uint16_t*)0x20000208 = 8;
  *(uint16_t*)0x2000020a = 5;
  *(uint32_t*)0x2000020c = 5;
  *(uint64_t*)0x200002c8 = 0x110;
  *(uint64_t*)0x20000318 = 1;
  *(uint64_t*)0x20000320 = 0;
  *(uint64_t*)0x20000328 = 0;
  *(uint32_t*)0x20000330 = 0x4000054;
  syscall(__NR_sendmsg, r[2], 0x20000300, 0);
  *(uint8_t*)0x20000080 = -1;
  *(uint8_t*)0x20000081 = -1;
  *(uint8_t*)0x20000082 = -1;
  *(uint8_t*)0x20000083 = -1;
  *(uint8_t*)0x20000084 = -1;
  *(uint8_t*)0x20000085 = -1;
  *(uint8_t*)0x20000086 = -1;
  *(uint8_t*)0x20000087 = -1;
  *(uint8_t*)0x20000088 = -1;
  *(uint8_t*)0x20000089 = -1;
  *(uint8_t*)0x2000008a = -1;
  *(uint8_t*)0x2000008b = -1;
  *(uint16_t*)0x2000008c = htobe16(0x800);
  STORE_BY_BITMASK(uint8_t, 0x2000008e, 5, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000008e, 4, 4, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000008f, 0, 0, 2);
  STORE_BY_BITMASK(uint8_t, 0x2000008f, 0, 2, 6);
  *(uint16_t*)0x20000090 = htobe16(0x30);
  *(uint16_t*)0x20000092 = htobe16(0);
  *(uint16_t*)0x20000094 = htobe16(0);
  *(uint8_t*)0x20000096 = 0;
  *(uint8_t*)0x20000097 = 0;
  *(uint16_t*)0x20000098 = 0;
  *(uint8_t*)0x2000009a = 0xac;
  *(uint8_t*)0x2000009b = 0x14;
  *(uint8_t*)0x2000009c = 0x14;
  *(uint8_t*)0x2000009d = 0xbb;
  *(uint8_t*)0x2000009e = 0xac;
  *(uint8_t*)0x2000009f = 0x14;
  *(uint8_t*)0x200000a0 = 0x14;
  *(uint8_t*)0x200000a1 = 0;
  *(uint8_t*)0x200000a2 = 0xc;
  *(uint8_t*)0x200000a3 = 0;
  *(uint16_t*)0x200000a4 = 0;
  *(uint8_t*)0x200000a6 = 0;
  *(uint8_t*)0x200000a7 = 0;
  *(uint16_t*)0x200000a8 = 0;
  STORE_BY_BITMASK(uint8_t, 0x200000aa, 5, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x200000aa, 4, 4, 4);
  STORE_BY_BITMASK(uint8_t, 0x200000ab, 0, 0, 2);
  STORE_BY_BITMASK(uint8_t, 0x200000ab, 0, 2, 6);
  *(uint16_t*)0x200000ac = htobe16(0);
  *(uint16_t*)0x200000ae = htobe16(0);
  *(uint16_t*)0x200000b0 = htobe16(0);
  *(uint8_t*)0x200000b2 = 0;
  *(uint8_t*)0x200000b3 = 0;
  *(uint16_t*)0x200000b4 = htobe16(0);
  *(uint8_t*)0x200000b6 = 0xac;
  *(uint8_t*)0x200000b7 = 0x14;
  *(uint8_t*)0x200000b8 = 0x14;
  *(uint8_t*)0x200000b9 = 0xaa;
  *(uint8_t*)0x200000ba = 0xac;
  *(uint8_t*)0x200000bb = 0x14;
  *(uint8_t*)0x200000bc = 0x14;
  *(uint8_t*)0x200000bd = 0;
  *(uint32_t*)0x20000200 = 0;
  *(uint32_t*)0x20000204 = 0;
  *(uint32_t*)0x20000208 = 0;
  *(uint32_t*)0x2000020c = 0;
  *(uint32_t*)0x20000210 = 0;
  *(uint32_t*)0x20000214 = 0;
  struct csum_inet csum_1;
  csum_inet_init(&csum_1);
  csum_inet_update(&csum_1, (const uint8_t*)0x200000a2, 28);
  *(uint16_t*)0x200000a4 = csum_inet_digest(&csum_1);
  struct csum_inet csum_2;
  csum_inet_init(&csum_2);
  csum_inet_update(&csum_2, (const uint8_t*)0x2000008e, 20);
  *(uint16_t*)0x20000098 = csum_inet_digest(&csum_2);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (;;) {
    loop();
  }
}