// https://syzkaller.appspot.com/bug?id=df61367c229140e3ee8229af317c18c13ce3e43e
// 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;
}

#ifndef __NR_mmap
#define __NR_mmap 192
#endif
#ifndef __NR_socket
#define __NR_socket 359
#endif
#ifndef __NR_connect
#define __NR_connect 362
#endif
#ifndef __NR_sendmsg
#define __NR_sendmsg 370
#endif
#undef __NR_mmap
#define __NR_mmap __NR_mmap2

long r[2];
void loop()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
  r[0] = syscall(__NR_socket, 0xa, 2, 0);
  *(uint16_t*)0x20e6f000 = 0xa;
  *(uint16_t*)0x20e6f002 = htobe16(0x4e22);
  *(uint32_t*)0x20e6f004 = 0;
  *(uint8_t*)0x20e6f008 = 0;
  *(uint8_t*)0x20e6f009 = 0;
  *(uint8_t*)0x20e6f00a = 0;
  *(uint8_t*)0x20e6f00b = 0;
  *(uint8_t*)0x20e6f00c = 0;
  *(uint8_t*)0x20e6f00d = 0;
  *(uint8_t*)0x20e6f00e = 0;
  *(uint8_t*)0x20e6f00f = 0;
  *(uint8_t*)0x20e6f010 = 0;
  *(uint8_t*)0x20e6f011 = 0;
  *(uint8_t*)0x20e6f012 = -1;
  *(uint8_t*)0x20e6f013 = -1;
  *(uint8_t*)0x20e6f014 = 0xac;
  *(uint8_t*)0x20e6f015 = 0x14;
  *(uint8_t*)0x20e6f016 = 0;
  *(uint8_t*)0x20e6f017 = 0xaa;
  *(uint32_t*)0x20e6f018 = 1;
  syscall(__NR_connect, r[0], 0x20e6f000, 0x1c);
  *(uint16_t*)0x20d94fe4 = 0xa;
  *(uint16_t*)0x20d94fe6 = htobe16(0x4e20);
  *(uint32_t*)0x20d94fe8 = 4;
  *(uint8_t*)0x20d94fec = 0xfe;
  *(uint8_t*)0x20d94fed = 0x80;
  *(uint8_t*)0x20d94fee = 0;
  *(uint8_t*)0x20d94fef = 0;
  *(uint8_t*)0x20d94ff0 = 0;
  *(uint8_t*)0x20d94ff1 = 0;
  *(uint8_t*)0x20d94ff2 = 0;
  *(uint8_t*)0x20d94ff3 = 0;
  *(uint8_t*)0x20d94ff4 = 0;
  *(uint8_t*)0x20d94ff5 = 0;
  *(uint8_t*)0x20d94ff6 = 0;
  *(uint8_t*)0x20d94ff7 = 0;
  *(uint8_t*)0x20d94ff8 = 0;
  *(uint8_t*)0x20d94ff9 = 0;
  *(uint8_t*)0x20d94ffa = 0;
  *(uint8_t*)0x20d94ffb = 0xaa;
  *(uint32_t*)0x20d94ffc = 9;
  syscall(__NR_connect, r[0], 0x20d94fe4, 0x1c);
  r[1] = syscall(__NR_socket, 0x18, 1, 1);
  *(uint16_t*)0x205fafd2 = 0x18;
  *(uint32_t*)0x205fafd4 = 1;
  *(uint32_t*)0x205fafd8 = 0;
  *(uint32_t*)0x205fafdc = r[0];
  *(uint16_t*)0x205fafe0 = 2;
  *(uint16_t*)0x205fafe2 = htobe16(0x4e21);
  *(uint32_t*)0x205fafe4 = htobe32(0xe0000002);
  *(uint8_t*)0x205fafe8 = 0;
  *(uint8_t*)0x205fafe9 = 0;
  *(uint8_t*)0x205fafea = 0;
  *(uint8_t*)0x205fafeb = 0;
  *(uint8_t*)0x205fafec = 0;
  *(uint8_t*)0x205fafed = 0;
  *(uint8_t*)0x205fafee = 0;
  *(uint8_t*)0x205fafef = 0;
  *(uint32_t*)0x205faff0 = 4;
  *(uint32_t*)0x205faff4 = 0;
  *(uint32_t*)0x205faff8 = 2;
  *(uint32_t*)0x205faffc = 0;
  syscall(__NR_connect, r[1], 0x205fafd2, 0x2e);
  *(uint32_t*)0x20ab9000 = 0x20ea7ff8;
  *(uint32_t*)0x20ab9004 = 8;
  *(uint32_t*)0x20ab9008 = 0x20a2c000;
  *(uint32_t*)0x20ab900c = 1;
  *(uint32_t*)0x20ab9010 = 0x20496000;
  *(uint32_t*)0x20ab9014 = 0x54;
  *(uint32_t*)0x20ab9018 = 0x4081;
  *(uint16_t*)0x20ea7ff8 = 0;
  *(uint8_t*)0x20ea7ffa = 0;
  *(uint32_t*)0x20ea7ffc = 0x4e22;
  *(uint32_t*)0x20a2c000 = 0x20e7d000;
  *(uint32_t*)0x20a2c004 = 0;
  *(uint32_t*)0x20496000 = 0xc;
  *(uint32_t*)0x20496004 = 0x19f;
  *(uint32_t*)0x20496008 = 0x1f;
  *(uint32_t*)0x2049600c = 0xc;
  *(uint32_t*)0x20496010 = 0x108;
  *(uint32_t*)0x20496014 = 9;
  *(uint32_t*)0x20496018 = 0xc;
  *(uint32_t*)0x2049601c = 0x119;
  *(uint32_t*)0x20496020 = 4;
  *(uint32_t*)0x20496024 = 0xc;
  *(uint32_t*)0x20496028 = 0x101;
  *(uint32_t*)0x2049602c = 0x1000;
  *(uint32_t*)0x20496030 = 0xc;
  *(uint32_t*)0x20496034 = 0;
  *(uint32_t*)0x20496038 = 0x1ff;
  *(uint32_t*)0x2049603c = 0xc;
  *(uint32_t*)0x20496040 = 0xff;
  *(uint32_t*)0x20496044 = 0xffff;
  *(uint32_t*)0x20496048 = 0xc;
  *(uint32_t*)0x2049604c = 0x10e;
  *(uint32_t*)0x20496050 = 0xfffffffc;
  syscall(__NR_sendmsg, r[1], 0x20ab9000, 0x8090);
  *(uint8_t*)0x20f49030 = 0xaa;
  *(uint8_t*)0x20f49031 = 0xaa;
  *(uint8_t*)0x20f49032 = 0xaa;
  *(uint8_t*)0x20f49033 = 0xaa;
  *(uint8_t*)0x20f49034 = 0;
  *(uint8_t*)0x20f49035 = 0xaa;
  *(uint8_t*)0x20f49036 = 0;
  *(uint8_t*)0x20f49037 = 0;
  *(uint8_t*)0x20f49038 = 0;
  *(uint8_t*)0x20f49039 = 0;
  *(uint8_t*)0x20f4903a = 0;
  *(uint8_t*)0x20f4903b = 0;
  *(uint16_t*)0x20f4903c = htobe16(0x86dd);
  STORE_BY_BITMASK(uint8_t, 0x20f4903e, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x20f4903e, 6, 4, 4);
  memcpy((void*)0x20f4903f, "\x00\x08\x07", 3);
  *(uint16_t*)0x20f49042 = htobe16(0x14);
  *(uint8_t*)0x20f49044 = 0;
  *(uint8_t*)0x20f49045 = 0;
  *(uint8_t*)0x20f49046 = 0xfe;
  *(uint8_t*)0x20f49047 = 0x80;
  *(uint8_t*)0x20f49048 = 0;
  *(uint8_t*)0x20f49049 = 0;
  *(uint8_t*)0x20f4904a = 0;
  *(uint8_t*)0x20f4904b = 0;
  *(uint8_t*)0x20f4904c = 0;
  *(uint8_t*)0x20f4904d = 0;
  *(uint8_t*)0x20f4904e = 0;
  *(uint8_t*)0x20f4904f = 0;
  *(uint8_t*)0x20f49050 = 0;
  *(uint8_t*)0x20f49051 = 0;
  *(uint8_t*)0x20f49052 = 0;
  *(uint8_t*)0x20f49053 = 0;
  *(uint8_t*)0x20f49054 = 0;
  *(uint8_t*)0x20f49055 = 0xbb;
  *(uint8_t*)0x20f49056 = -1;
  *(uint8_t*)0x20f49057 = 2;
  *(uint8_t*)0x20f49058 = 0;
  *(uint8_t*)0x20f49059 = 0;
  *(uint8_t*)0x20f4905a = 0;
  *(uint8_t*)0x20f4905b = 0;
  *(uint8_t*)0x20f4905c = 0;
  *(uint8_t*)0x20f4905d = 0;
  *(uint8_t*)0x20f4905e = 0;
  *(uint8_t*)0x20f4905f = 0;
  *(uint8_t*)0x20f49060 = 0;
  *(uint8_t*)0x20f49061 = 0;
  *(uint8_t*)0x20f49062 = 0;
  *(uint8_t*)0x20f49063 = 0;
  *(uint8_t*)0x20f49064 = 0;
  *(uint8_t*)0x20f49065 = 1;
  *(uint16_t*)0x20f49066 = 0;
  *(uint16_t*)0x20f49068 = 0;
  *(uint32_t*)0x20f4906a = 0x42424242;
  *(uint32_t*)0x20f4906e = 0x42424242;
  STORE_BY_BITMASK(uint8_t, 0x20f49072, 0, 0, 1);
  STORE_BY_BITMASK(uint8_t, 0x20f49072, 0, 1, 3);
  STORE_BY_BITMASK(uint8_t, 0x20f49072, 5, 4, 4);
  *(uint8_t*)0x20f49073 = 0;
  *(uint16_t*)0x20f49074 = htobe16(0);
  *(uint16_t*)0x20f49076 = 0;
  *(uint16_t*)0x20f49078 = htobe16(0);
  struct csum_inet csum_1;
  csum_inet_init(&csum_1);
  csum_inet_update(&csum_1, (const uint8_t*)0x20f49046, 16);
  csum_inet_update(&csum_1, (const uint8_t*)0x20f49056, 16);
  uint32_t csum_1_chunk_2 = 0x14000000;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_2, 4);
  uint32_t csum_1_chunk_3 = 0x6000000;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_3, 4);
  csum_inet_update(&csum_1, (const uint8_t*)0x20f49066, 20);
  *(uint16_t*)0x20f49076 = csum_inet_digest(&csum_1);
}

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