// https://syzkaller.appspot.com/bug?id=9fcc32fe46ce159d6a3e64b64ab3402a7ac2e9b8
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}

__attribute__((noreturn)) static void fail(const char* msg, ...)
{
  int e = errno;
  fflush(stdout);
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

__attribute__((noreturn)) static void exitf(const char* msg, ...)
{
  int e = errno;
  fflush(stdout);
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit(kRetryStatus);
}

#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 uint64_t current_time_ms()
{
  struct timespec ts;

  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    fail("clock_gettime failed");
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void test();

void loop()
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("clone failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      test();
      doexit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      int res = waitpid(-1, &status, __WALL | WNOHANG);
      if (res == pid)
        break;
      usleep(1000);
      if (current_time_ms() - start > 5 * 1000) {
        kill(-pid, SIGKILL);
        kill(pid, SIGKILL);
        while (waitpid(-1, &status, __WALL) != pid) {
        }
        break;
      }
    }
  }
}

long r[141];
void test()
{
  memset(r, -1, sizeof(r));
  r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
                 0xfffffffffffffffful, 0x0ul);
  r[1] = syscall(__NR_socket, 0x2ul, 0x1ul, 0x0ul);
  *(uint8_t*)0x20002000 = (uint8_t)0xaa;
  *(uint8_t*)0x20002001 = (uint8_t)0xaa;
  *(uint8_t*)0x20002002 = (uint8_t)0xaa;
  *(uint8_t*)0x20002003 = (uint8_t)0xaa;
  *(uint8_t*)0x20002004 = (uint8_t)0xaa;
  *(uint8_t*)0x20002005 = (uint8_t)0x0;
  memcpy((void*)0x20002006, "\x4c\x61\x12\xcc\x15\xd8", 6);
  *(uint16_t*)0x2000200c = (uint16_t)0x8;
  STORE_BY_BITMASK(uint8_t, 0x2000200e, 0x5, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000200e, 0x4, 4, 4);
  STORE_BY_BITMASK(uint8_t, 0x2000200f, 0x0, 0, 2);
  STORE_BY_BITMASK(uint8_t, 0x2000200f, 0x7ff, 2, 6);
  *(uint16_t*)0x20002010 = (uint16_t)0x3800;
  *(uint16_t*)0x20002012 = (uint16_t)0x6400;
  *(uint16_t*)0x20002014 = (uint16_t)0x60;
  *(uint8_t*)0x20002016 = (uint8_t)0x0;
  *(uint8_t*)0x20002017 = (uint8_t)0x6;
  *(uint16_t*)0x20002018 = (uint16_t)0x0;
  *(uint8_t*)0x2000201a = (uint8_t)0xac;
  *(uint8_t*)0x2000201b = (uint8_t)0x14;
  *(uint8_t*)0x2000201c = (uint8_t)0x0;
  *(uint8_t*)0x2000201d = (uint8_t)0xbb;
  *(uint8_t*)0x2000201e = (uint8_t)0xac;
  *(uint8_t*)0x2000201f = (uint8_t)0x14;
  *(uint8_t*)0x20002020 = (uint8_t)0x0;
  *(uint8_t*)0x20002021 = (uint8_t)0xaa;
  *(uint16_t*)0x20002022 = (uint16_t)0x214e;
  *(uint16_t*)0x20002024 = (uint16_t)0x204e;
  *(uint32_t*)0x20002026 = (uint32_t)0x42424242;
  *(uint32_t*)0x2000202a = (uint32_t)0x42424242;
  STORE_BY_BITMASK(uint8_t, 0x2000202e, 0x6, 0, 1);
  STORE_BY_BITMASK(uint8_t, 0x2000202e, 0x0, 1, 3);
  STORE_BY_BITMASK(uint8_t, 0x2000202e, 0x9, 4, 4);
  *(uint8_t*)0x2000202f = (uint8_t)0x2;
  *(uint16_t*)0x20002030 = (uint16_t)0x0;
  *(uint16_t*)0x20002032 = (uint16_t)0x0;
  *(uint16_t*)0x20002034 = (uint16_t)0x0;
  *(uint8_t*)0x20002036 = (uint8_t)0x4;
  *(uint8_t*)0x20002037 = (uint8_t)0x2;
  *(uint8_t*)0x20002038 = (uint8_t)0x8;
  *(uint8_t*)0x20002039 = (uint8_t)0xa;
  *(uint32_t*)0x2000203a = (uint32_t)0xda000000;
  *(uint32_t*)0x2000203e = (uint32_t)0x8000000;
  *(uint8_t*)0x20002042 = (uint8_t)0x4;
  *(uint8_t*)0x20002043 = (uint8_t)0x2;
  struct csum_inet csum_47;
  csum_inet_init(&csum_47);
  csum_inet_update(&csum_47, (const uint8_t*)0x2000201a, 4);
  csum_inet_update(&csum_47, (const uint8_t*)0x2000201e, 4);
  uint16_t csum_47_chunk_2 = 0x600;
  csum_inet_update(&csum_47, (const uint8_t*)&csum_47_chunk_2, 2);
  uint16_t csum_47_chunk_3 = 0x2400;
  csum_inet_update(&csum_47, (const uint8_t*)&csum_47_chunk_3, 2);
  csum_inet_update(&csum_47, (const uint8_t*)0x20002022, 36);
  *(uint16_t*)0x20002032 = csum_inet_digest(&csum_47);
  struct csum_inet csum_48;
  csum_inet_init(&csum_48);
  csum_inet_update(&csum_48, (const uint8_t*)0x2000200e, 20);
  *(uint16_t*)0x20002018 = csum_inet_digest(&csum_48);
  r[50] = syscall(__NR_socket, 0x2ul, 0x1ul, 0x0ul);
  *(uint16_t*)0x20660fe4 = (uint16_t)0xa;
  *(uint16_t*)0x20660fe6 = (uint16_t)0x234e;
  *(uint32_t*)0x20660fe8 = (uint32_t)0x0;
  *(uint64_t*)0x20660fec = (uint64_t)0x0;
  *(uint64_t*)0x20660ff4 = (uint64_t)0x100000000000000;
  *(uint32_t*)0x20660ffc = (uint32_t)0x0;
  r[57] =
      syscall(__NR_connect, 0xfffffffffffffffful, 0x20660fe4ul, 0x1cul);
  r[58] = syscall(__NR_socket, 0x26ul, 0x5ul, 0x0ul);
  *(uint16_t*)0x20ba9000 = (uint16_t)0x26;
  memcpy((void*)0x20ba9002,
         "\x68\x61\x73\x68\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         14);
  *(uint32_t*)0x20ba9010 = (uint32_t)0x104f;
  *(uint32_t*)0x20ba9014 = (uint32_t)0x0;
  memcpy((void*)0x20ba9018,
         "\x64\x69\x67\x65\x73\x74\x5f\x6e\x75\x6c\x6c\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00",
         64);
  r[64] = syscall(__NR_bind, r[58], 0x20ba9000ul, 0x58ul);
  r[65] = syscall(__NR_socket, 0x2ul, 0x6ul, 0x0ul);
  *(uint16_t*)0x202bf000 = (uint16_t)0x26;
  memcpy((void*)0x202bf002,
         "\x68\x61\x73\x68\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         14);
  *(uint32_t*)0x202bf010 = (uint32_t)0x21f;
  *(uint32_t*)0x202bf014 = (uint32_t)0x8000;
  memcpy((void*)0x202bf018,
         "\x68\x6d\x61\x63\x28\x73\x68\x61\x32\x35\x36\x29\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00",
         64);
  r[71] = syscall(__NR_bind, r[58], 0x202bf000ul, 0x58ul);
  *(uint32_t*)0x20a36ffc = (uint32_t)0x4;
  r[73] = syscall(__NR_getsockopt, 0xfffffffffffffffful, 0x0ul, 0x22ul,
                  0x201a1000ul, 0x20a36ffcul);
  *(uint32_t*)0x2035d000 = (uint32_t)0x0;
  *(uint16_t*)0x2035d008 = (uint16_t)0xa;
  *(uint16_t*)0x2035d00a = (uint16_t)0x234e;
  *(uint32_t*)0x2035d00c = (uint32_t)0x2;
  *(uint8_t*)0x2035d010 = (uint8_t)0x0;
  *(uint8_t*)0x2035d011 = (uint8_t)0x0;
  *(uint8_t*)0x2035d012 = (uint8_t)0x0;
  *(uint8_t*)0x2035d013 = (uint8_t)0x0;
  *(uint8_t*)0x2035d014 = (uint8_t)0x0;
  *(uint8_t*)0x2035d015 = (uint8_t)0x0;
  *(uint8_t*)0x2035d016 = (uint8_t)0x0;
  *(uint8_t*)0x2035d017 = (uint8_t)0x0;
  *(uint8_t*)0x2035d018 = (uint8_t)0x0;
  *(uint8_t*)0x2035d019 = (uint8_t)0x0;
  *(uint8_t*)0x2035d01a = (uint8_t)0x0;
  *(uint8_t*)0x2035d01b = (uint8_t)0x0;
  *(uint8_t*)0x2035d01c = (uint8_t)0x0;
  *(uint8_t*)0x2035d01d = (uint8_t)0x0;
  *(uint8_t*)0x2035d01e = (uint8_t)0x0;
  *(uint8_t*)0x2035d01f = (uint8_t)0x0;
  *(uint32_t*)0x2035d020 = (uint32_t)0xffffffff00000000;
  *(uint64_t*)0x2035d028 = (uint64_t)0x0;
  *(uint64_t*)0x2035d030 = (uint64_t)0x0;
  *(uint64_t*)0x2035d038 = (uint64_t)0x0;
  *(uint64_t*)0x2035d040 = (uint64_t)0x0;
  *(uint64_t*)0x2035d048 = (uint64_t)0x0;
  *(uint64_t*)0x2035d050 = (uint64_t)0x0;
  *(uint64_t*)0x2035d058 = (uint64_t)0x0;
  *(uint64_t*)0x2035d060 = (uint64_t)0x0;
  *(uint64_t*)0x2035d068 = (uint64_t)0x0;
  *(uint64_t*)0x2035d070 = (uint64_t)0x0;
  *(uint64_t*)0x2035d078 = (uint64_t)0x0;
  *(uint64_t*)0x2035d080 = (uint64_t)0x0;
  *(uint64_t*)0x2035d090 = (uint64_t)0x2;
  *(uint64_t*)0x2035d098 = (uint64_t)0xfbd;
  *(uint64_t*)0x2035d0a0 = (uint64_t)0x28e800000000000;
  *(uint64_t*)0x2035d0a8 = (uint64_t)0xc88e1b1;
  *(uint64_t*)0x2035d0b0 = (uint64_t)0x2;
  *(uint64_t*)0x2035d0b8 = (uint64_t)0x6;
  *(uint64_t*)0x2035d0c0 = (uint64_t)0x1;
  *(uint64_t*)0x2035d0c8 = (uint64_t)0x6;
  *(uint64_t*)0x2035d0d0 = (uint64_t)0x8;
  *(uint64_t*)0x2035d0d8 = (uint64_t)0x5;
  *(uint64_t*)0x2035d0e0 = (uint64_t)0x2;
  *(uint64_t*)0x2035d0e8 = (uint64_t)0x7;
  *(uint64_t*)0x2035d0f0 = (uint64_t)0x40;
  *(uint64_t*)0x2035d0f8 = (uint64_t)0x80000001;
  *(uint64_t*)0x2035d100 = (uint64_t)0x8000;
  *(uint32_t*)0x20b9effc = (uint32_t)0x108;
  r[123] = syscall(__NR_getsockopt, r[65], 0x84ul, 0x70ul, 0x2035d000ul,
                   0x20b9effcul);
  memcpy((void*)0x2063bfe0, "\x69\x72\x6c\x61\x6e\x30\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00",
         16);
  *(uint16_t*)0x2063bff0 = (uint16_t)0x2;
  *(uint16_t*)0x2063bff2 = (uint16_t)0x224e;
  *(uint8_t*)0x2063bff4 = (uint8_t)0xac;
  *(uint8_t*)0x2063bff5 = (uint8_t)0x14;
  *(uint8_t*)0x2063bff6 = (uint8_t)0x0;
  *(uint8_t*)0x2063bff7 = (uint8_t)0xaa;
  *(uint8_t*)0x2063bff8 = (uint8_t)0x0;
  *(uint8_t*)0x2063bff9 = (uint8_t)0x0;
  *(uint8_t*)0x2063bffa = (uint8_t)0x0;
  *(uint8_t*)0x2063bffb = (uint8_t)0x0;
  *(uint8_t*)0x2063bffc = (uint8_t)0x0;
  *(uint8_t*)0x2063bffd = (uint8_t)0x0;
  *(uint8_t*)0x2063bffe = (uint8_t)0x0;
  *(uint8_t*)0x2063bfff = (uint8_t)0x0;
  r[139] = syscall(__NR_ioctl, r[58], 0x8918ul, 0x2063bfe0ul);
  r[140] = syscall(__NR_setsockopt, r[58], 0x117ul, 0x1ul, 0x20490000ul,
                   0x0ul);
}

int main()
{
  int i;
  for (i = 0; i < 8; i++) {
    if (fork() == 0) {
      loop();
      return 0;
    }
  }
  sleep(1000000);
  return 0;
}