// https://syzkaller.appspot.com/bug?id=2b6a5e7ed9c189aadc974fc5ff168b131c005947
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <errno.h>
#include <errno.h>
#include <fcntl.h>
#include <fcntl.h>
#include <fcntl.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/ip.h>
#include <linux/kvm.h>
#include <linux/tcp.h>
#include <net/if_arp.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdarg.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdio.h>
#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/ioctl.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/stat.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <unistd.h>

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

#include <stdint.h>
#include <string.h>

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

static void fail(const char* msg, ...)
{
  int e = errno;
  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);
}

#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 vsnprintf_check(char* str, size_t size, const char* format,
                            va_list args)
{
  int rv;

  rv = vsnprintf(str, size, format, args);
  if (rv < 0)
    fail("tun: snprintf failed");
  if ((size_t)rv >= size)
    fail("tun: string '%s...' doesn't fit into buffer", str);
}

static void snprintf_check(char* str, size_t size, const char* format,
                           ...)
{
  va_list args;

  va_start(args, format);
  vsnprintf_check(str, size, format, args);
  va_end(args);
}

#define COMMAND_MAX_LEN 128
#define PATH_PREFIX                                                    \
  "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin "
#define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1)

static void execute_command(const char* format, ...)
{
  va_list args;
  char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN];
  int rv;

  va_start(args, format);
  memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN);
  vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format,
                  args);
  rv = system(command);
  if (rv != 0)
    fail("tun: command \"%s\" failed with code %d", &command[0], rv);

  va_end(args);
}

static int tunfd = -1;
static int tun_frags_enabled;

#define SYZ_TUN_MAX_PACKET_SIZE 1000

#define MAX_PIDS 32
#define ADDR_MAX_LEN 32

#define LOCAL_MAC "aa:aa:aa:aa:aa:%02hx"
#define REMOTE_MAC "bb:bb:bb:bb:bb:%02hx"

#define LOCAL_IPV4 "172.20.%d.170"
#define REMOTE_IPV4 "172.20.%d.187"

#define LOCAL_IPV6 "fe80::%02hxaa"
#define REMOTE_IPV6 "fe80::%02hxbb"

#define IFF_NAPI 0x0010
#define IFF_NAPI_FRAGS 0x0020

static void initialize_tun(uint64_t pid)
{
  if (pid >= MAX_PIDS)
    fail("tun: no more than %d executors", MAX_PIDS);
  int id = pid;

  tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
  if (tunfd == -1) {
    printf(
        "tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
    printf("otherwise fuzzing or reproducing might not work as "
           "intended\n");
    return;
  }

  char iface[IFNAMSIZ];
  snprintf_check(iface, sizeof(iface), "syz%d", id);

  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, iface, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_NAPI | IFF_NAPI_FRAGS;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
    if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0)
      fail("tun: ioctl(TUNSETIFF) failed");
  }
  if (ioctl(tunfd, TUNGETIFF, (void*)&ifr) < 0)
    fail("tun: ioctl(TUNGETIFF) failed");
  tun_frags_enabled = (ifr.ifr_flags & IFF_NAPI_FRAGS) != 0;

  char local_mac[ADDR_MAX_LEN];
  snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC, id);
  char remote_mac[ADDR_MAX_LEN];
  snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC, id);

  char local_ipv4[ADDR_MAX_LEN];
  snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, id);
  char remote_ipv4[ADDR_MAX_LEN];
  snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, id);

  char local_ipv6[ADDR_MAX_LEN];
  snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, id);
  char remote_ipv6[ADDR_MAX_LEN];
  snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, id);

  execute_command("sysctl -w net.ipv6.conf.%s.accept_dad=0", iface);

  execute_command("sysctl -w net.ipv6.conf.%s.router_solicitations=0",
                  iface);

  execute_command("ip link set dev %s address %s", iface, local_mac);
  execute_command("ip addr add %s/24 dev %s", local_ipv4, iface);
  execute_command("ip -6 addr add %s/120 dev %s", local_ipv6, iface);
  execute_command("ip neigh add %s lladdr %s dev %s nud permanent",
                  remote_ipv4, remote_mac, iface);
  execute_command("ip -6 neigh add %s lladdr %s dev %s nud permanent",
                  remote_ipv6, remote_mac, iface);
  execute_command("ip link set dev %s up", iface);
}

static void setup_tun(uint64_t pid, bool enable_tun)
{
  if (enable_tun)
    initialize_tun(pid);
}

#define MAX_FRAGS 4
struct vnet_fragmentation {
  uint32_t full;
  uint32_t count;
  uint32_t frags[MAX_FRAGS];
};

static uintptr_t syz_emit_ethernet(uintptr_t a0, uintptr_t a1,
                                   uintptr_t a2)
{
  if (tunfd < 0)
    return (uintptr_t)-1;

  uint32_t length = a0;
  char* data = (char*)a1;

  struct vnet_fragmentation* frags = (struct vnet_fragmentation*)a2;
  struct iovec vecs[MAX_FRAGS + 1];
  uint32_t nfrags = 0;
  if (!tun_frags_enabled || frags == NULL) {
    vecs[nfrags].iov_base = data;
    vecs[nfrags].iov_len = length;
    nfrags++;
  } else {
    bool full = true;
    uint32_t i, count = 0;
    full = frags->full;
    count = frags->count;
    if (count > MAX_FRAGS)
      count = MAX_FRAGS;
    for (i = 0; i < count && length != 0; i++) {
      uint32_t size = 0;
      size = frags->frags[i];
      if (size > length)
        size = length;
      vecs[nfrags].iov_base = data;
      vecs[nfrags].iov_len = size;
      nfrags++;
      data += size;
      length -= size;
    }
    if (length != 0 && (full || nfrags == 0)) {
      vecs[nfrags].iov_base = data;
      vecs[nfrags].iov_len = length;
      nfrags++;
    }
  }
  return writev(tunfd, vecs, nfrags);
}

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);
  }
}

static uintptr_t syz_kvm_setup_cpu(uintptr_t a0, uintptr_t a1,
                                   uintptr_t a2, uintptr_t a3,
                                   uintptr_t a4, uintptr_t a5,
                                   uintptr_t a6, uintptr_t a7)
{
  return 0;
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setsid();

  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 8 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 0;
  setrlimit(RLIMIT_CORE, &rlim);

#define CLONE_NEWCGROUP 0x02000000

  unshare(CLONE_NEWNS);
  unshare(CLONE_NEWIPC);
  unshare(CLONE_NEWCGROUP);
  unshare(CLONE_NEWNET);
  unshare(CLONE_NEWUTS);
  unshare(CLONE_SYSVSEM);
}

static int do_sandbox_none(int executor_pid, bool enable_tun)
{
  unshare(CLONE_NEWPID);
  int pid = fork();
  if (pid < 0)
    fail("sandbox fork failed");
  if (pid)
    return pid;

  sandbox_common();
  setup_tun(executor_pid, enable_tun);

  loop();
  doexit(1);
}

static void test();

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

#ifndef __NR_ioctl
#define __NR_ioctl 54
#endif
#ifndef __NR_bpf
#define __NR_bpf 357
#endif
#ifndef __NR_sendto
#define __NR_sendto 369
#endif
#ifndef __NR_clock_gettime
#define __NR_clock_gettime 265
#endif
#ifndef __NR_perf_event_open
#define __NR_perf_event_open 336
#endif
#ifndef __NR_mmap
#define __NR_mmap 192
#endif
#ifndef __NR_getsockopt
#define __NR_getsockopt 365
#endif
#ifndef __NR_openat
#define __NR_openat 295
#endif
#ifndef __NR_fcntl
#define __NR_fcntl 55
#endif
#ifndef __NR_renameat2
#define __NR_renameat2 353
#endif
#undef __NR_mmap
#define __NR_mmap __NR_mmap2

long r[5];
void test()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 0x3, 0x32, 0xffffffff, 0x0);
  memcpy((void*)0x20007000, "/dev/binder#", 13);
  r[0] = syz_open_dev(0x20007000, 0x0, 0x0);
  *(uint64_t*)0x204ecfd0 = 0x0;
  *(uint64_t*)0x204ecfd8 = 0x0;
  *(uint64_t*)0x204ecfe0 = 0x204ec000;
  *(uint64_t*)0x204ecfe8 = 0x1;
  *(uint64_t*)0x204ecff0 = 0x0;
  *(uint64_t*)0x204ecff8 = 0x204ecfff;
  memcpy((void*)0x204ecfff, "\x12", 1);
  syscall(__NR_ioctl, r[0], 0xc0306201, 0x204ecfd0);
  *(uint32_t*)0x208d6ff8 = 0x0;
  *(uint32_t*)0x208d6ffc = 0xff800000;
  *(uint32_t*)0x205f1000 = 0x8;
  syscall(__NR_getsockopt, 0xffffffff, 0x84, 0x66, 0x208d6ff8,
          0x205f1000);
  *(uint32_t*)0x20ba334c = r[0];
  *(uint32_t*)0x20ba3350 = 0xffffffff;
  *(uint32_t*)0x20ba3354 = 0x5;
  *(uint32_t*)0x20ba3358 = 0x1;
  *(uint32_t*)0x20ba335c = 0xffffffff;
  syscall(__NR_bpf, 0x8, 0x20ba334c, 0x14);
  *(uint16_t*)0x20514ff0 = 0x2;
  *(uint16_t*)0x20514ff2 = htobe16(0x4e20);
  *(uint32_t*)0x20514ff4 = htobe32(0x0);
  *(uint8_t*)0x20514ff8 = 0x0;
  *(uint8_t*)0x20514ff9 = 0x0;
  *(uint8_t*)0x20514ffa = 0x0;
  *(uint8_t*)0x20514ffb = 0x0;
  *(uint8_t*)0x20514ffc = 0x0;
  *(uint8_t*)0x20514ffd = 0x0;
  *(uint8_t*)0x20514ffe = 0x0;
  *(uint8_t*)0x20514fff = 0x0;
  syscall(__NR_sendto, 0xffffffff, 0x20dcfffe, 0x0, 0x0, 0x20514ff0,
          0x10);
  memcpy((void*)0x203c4ff7, "/dev/kvm", 9);
  r[1] = syscall(__NR_openat, 0xffffff9c, 0x203c4ff7, 0x0, 0x0);
  r[2] = syscall(__NR_ioctl, r[1], 0xae01, 0x0);
  r[3] = syscall(__NR_ioctl, r[2], 0xae41, 0x0);
  syscall(__NR_clock_gettime, 0x0, 0x20000000);
  *(uint32_t*)0x20001000 = 0x10005;
  *(uint32_t*)0x20001004 = 0x0;
  *(uint64_t*)0x20001008 = 0x0;
  *(uint64_t*)0x20001010 = 0x2000;
  *(uint32_t*)0x20001018 = 0x20000000;
  syscall(__NR_ioctl, r[2], 0x4020ae46, 0x20001000);
  syscall(__NR_ioctl, r[3], 0xaeb7);
  syscall(__NR_ioctl, r[3], 0xae80, 0x0);
  *(uint32_t*)0x20a05000 = 0x3;
  *(uint32_t*)0x20a05004 = 0x78;
  *(uint8_t*)0x20a05008 = 0x1;
  *(uint8_t*)0x20a05009 = 0x0;
  *(uint8_t*)0x20a0500a = 0x0;
  *(uint8_t*)0x20a0500b = 0x0;
  *(uint32_t*)0x20a0500c = 0x0;
  *(uint64_t*)0x20a05010 = 0x8;
  *(uint64_t*)0x20a05018 = 0x0;
  *(uint64_t*)0x20a05020 = 0xc;
  *(uint8_t*)0x20a05028 = 0x0;
  *(uint8_t*)0x20a05029 = 0x81;
  *(uint8_t*)0x20a0502a = 0x0;
  *(uint8_t*)0x20a0502b = 0x1;
  *(uint32_t*)0x20a0502c = 0x0;
  *(uint32_t*)0x20a05030 = 0x101;
  *(uint32_t*)0x20a05034 = 0x4;
  *(uint64_t*)0x20a05038 = 0x6;
  *(uint64_t*)0x20a05040 = 0x3;
  *(uint64_t*)0x20a05048 = 0x8;
  *(uint64_t*)0x20a05050 = 0x3ace0eb5;
  *(uint64_t*)0x20a05058 = 0xfa9;
  *(uint32_t*)0x20a05060 = 0x3;
  *(uint64_t*)0x20a05068 = 0x8000;
  *(uint32_t*)0x20a05070 = 0x2;
  *(uint16_t*)0x20a05074 = 0x5;
  *(uint16_t*)0x20a05076 = 0x0;
  syscall(__NR_perf_event_open, 0x20a05000, 0x0, 0x3, 0xffffffff, 0x0);
  syscall(__NR_ioctl, r[3], 0xae80, 0x0);
  *(uint64_t*)0x202c7000 = 0x0;
  *(uint32_t*)0x202c7008 = 0x0;
  *(uint16_t*)0x202c700c = 0x0;
  *(uint8_t*)0x202c700e = 0x0;
  *(uint8_t*)0x202c700f = 0x0;
  *(uint8_t*)0x202c7010 = 0x0;
  *(uint8_t*)0x202c7011 = 0x0;
  *(uint8_t*)0x202c7012 = 0x0;
  *(uint8_t*)0x202c7013 = 0x0;
  *(uint8_t*)0x202c7014 = 0x0;
  *(uint8_t*)0x202c7015 = 0x0;
  *(uint8_t*)0x202c7016 = 0x0;
  *(uint8_t*)0x202c7017 = 0x0;
  *(uint64_t*)0x202c7018 = 0x0;
  *(uint32_t*)0x202c7020 = 0x0;
  *(uint16_t*)0x202c7024 = 0x0;
  *(uint8_t*)0x202c7026 = 0x0;
  *(uint8_t*)0x202c7027 = 0x0;
  *(uint8_t*)0x202c7028 = 0x0;
  *(uint8_t*)0x202c7029 = 0x0;
  *(uint8_t*)0x202c702a = 0x0;
  *(uint8_t*)0x202c702b = 0x0;
  *(uint8_t*)0x202c702c = 0x0;
  *(uint8_t*)0x202c702d = 0x0;
  *(uint8_t*)0x202c702e = 0x0;
  *(uint8_t*)0x202c702f = 0x0;
  *(uint64_t*)0x202c7030 = 0x0;
  *(uint32_t*)0x202c7038 = 0x0;
  *(uint16_t*)0x202c703c = 0x0;
  *(uint8_t*)0x202c703e = 0x0;
  *(uint8_t*)0x202c703f = 0x0;
  *(uint8_t*)0x202c7040 = 0x0;
  *(uint8_t*)0x202c7041 = 0x0;
  *(uint8_t*)0x202c7042 = 0x0;
  *(uint8_t*)0x202c7043 = 0x0;
  *(uint8_t*)0x202c7044 = 0x0;
  *(uint8_t*)0x202c7045 = 0x0;
  *(uint8_t*)0x202c7046 = 0x0;
  *(uint8_t*)0x202c7047 = 0x0;
  *(uint64_t*)0x202c7048 = 0x0;
  *(uint32_t*)0x202c7050 = 0x0;
  *(uint16_t*)0x202c7054 = 0x0;
  *(uint8_t*)0x202c7056 = 0x0;
  *(uint8_t*)0x202c7057 = 0x0;
  *(uint8_t*)0x202c7058 = 0x0;
  *(uint8_t*)0x202c7059 = 0x0;
  *(uint8_t*)0x202c705a = 0x0;
  *(uint8_t*)0x202c705b = 0x0;
  *(uint8_t*)0x202c705c = 0x0;
  *(uint8_t*)0x202c705d = 0x0;
  *(uint8_t*)0x202c705e = 0x0;
  *(uint8_t*)0x202c705f = 0x0;
  *(uint64_t*)0x202c7060 = 0x0;
  *(uint32_t*)0x202c7068 = 0x0;
  *(uint16_t*)0x202c706c = 0x0;
  *(uint8_t*)0x202c706e = 0x0;
  *(uint8_t*)0x202c706f = 0x0;
  *(uint8_t*)0x202c7070 = 0x0;
  *(uint8_t*)0x202c7071 = 0x0;
  *(uint8_t*)0x202c7072 = 0x0;
  *(uint8_t*)0x202c7073 = 0x0;
  *(uint8_t*)0x202c7074 = 0x0;
  *(uint8_t*)0x202c7075 = 0x0;
  *(uint8_t*)0x202c7076 = 0x0;
  *(uint8_t*)0x202c7077 = 0x0;
  *(uint64_t*)0x202c7078 = 0x0;
  *(uint32_t*)0x202c7080 = 0x0;
  *(uint16_t*)0x202c7084 = 0x0;
  *(uint8_t*)0x202c7086 = 0x0;
  *(uint8_t*)0x202c7087 = 0x0;
  *(uint8_t*)0x202c7088 = 0x0;
  *(uint8_t*)0x202c7089 = 0x0;
  *(uint8_t*)0x202c708a = 0x0;
  *(uint8_t*)0x202c708b = 0x0;
  *(uint8_t*)0x202c708c = 0x0;
  *(uint8_t*)0x202c708d = 0x0;
  *(uint8_t*)0x202c708e = 0x0;
  *(uint8_t*)0x202c708f = 0x0;
  *(uint64_t*)0x202c7090 = 0x0;
  *(uint32_t*)0x202c7098 = 0x0;
  *(uint16_t*)0x202c709c = 0x0;
  *(uint8_t*)0x202c709e = 0x0;
  *(uint8_t*)0x202c709f = 0x0;
  *(uint8_t*)0x202c70a0 = 0x0;
  *(uint8_t*)0x202c70a1 = 0x0;
  *(uint8_t*)0x202c70a2 = 0x0;
  *(uint8_t*)0x202c70a3 = 0x0;
  *(uint8_t*)0x202c70a4 = 0x0;
  *(uint8_t*)0x202c70a5 = 0x0;
  *(uint8_t*)0x202c70a6 = 0x0;
  *(uint8_t*)0x202c70a7 = 0x0;
  *(uint64_t*)0x202c70a8 = 0x0;
  *(uint32_t*)0x202c70b0 = 0x0;
  *(uint16_t*)0x202c70b4 = 0x0;
  *(uint8_t*)0x202c70b6 = 0x0;
  *(uint8_t*)0x202c70b7 = 0x0;
  *(uint8_t*)0x202c70b8 = 0x0;
  *(uint8_t*)0x202c70b9 = 0x0;
  *(uint8_t*)0x202c70ba = 0x0;
  *(uint8_t*)0x202c70bb = 0x0;
  *(uint8_t*)0x202c70bc = 0x0;
  *(uint8_t*)0x202c70bd = 0x0;
  *(uint8_t*)0x202c70be = 0x0;
  *(uint8_t*)0x202c70bf = 0x0;
  *(uint64_t*)0x202c70c0 = 0x0;
  *(uint16_t*)0x202c70c8 = 0x0;
  *(uint16_t*)0x202c70ca = 0x0;
  *(uint16_t*)0x202c70cc = 0x0;
  *(uint16_t*)0x202c70ce = 0x0;
  *(uint64_t*)0x202c70d0 = 0x0;
  *(uint16_t*)0x202c70d8 = 0x0;
  *(uint16_t*)0x202c70da = 0x0;
  *(uint16_t*)0x202c70dc = 0x0;
  *(uint16_t*)0x202c70de = 0x0;
  *(uint64_t*)0x202c70e0 = 0x0;
  *(uint64_t*)0x202c70e8 = 0x0;
  *(uint64_t*)0x202c70f0 = 0x0;
  *(uint64_t*)0x202c70f8 = 0x0;
  *(uint64_t*)0x202c7100 = 0x0;
  *(uint64_t*)0x202c7108 = 0x0;
  *(uint64_t*)0x202c7110 = 0x0;
  *(uint64_t*)0x202c7118 = 0x0;
  *(uint64_t*)0x202c7120 = 0x0;
  *(uint64_t*)0x202c7128 = 0x0;
  *(uint64_t*)0x202c7130 = 0x0;
  syscall(__NR_ioctl, r[3], 0x4138ae84, 0x202c7000);
  syscall(__NR_ioctl, r[3], 0xae80, 0x0);
  *(uint32_t*)0x20aadff4 = 0x8;
  *(uint32_t*)0x20aadff8 = 0x20228000;
  *(uint32_t*)0x20aadffc = 0x38;
  memcpy((void*)0x20228000,
         "\x0f\x19\xc5\xf3\x0f\xd6\xd4\x2e\x8a\x45\x2d\x3e\x2e\x0f\x18"
         "\x8a\x00\x00\x66\xb9\x0e\x08\x00\x00\x66\xb8\xd3\x00\x00\x00"
         "\x66\xba\x00\x00\x00\x00\x0f\x30\xd9\xea\xf2\xa5\x0f\x01\x9a"
         "\xa4\x3a\x36\x65\x08\xe0\xb8\x07\x00\x8e\xc8",
         56);
  syz_kvm_setup_cpu(0xffffffff, 0xffffffff, 0x209c1000, 0x20aadff4, 0x1,
                    0x9, 0x20445000, 0x0);
  syscall(__NR_fcntl, 0xffffffff, 0x407, 0x5);
  memcpy((void*)0x20261ff8, "./file0", 8);
  memcpy((void*)0x203f6000, "./file0", 8);
  syscall(__NR_renameat2, 0xffffffff, 0x20261ff8, 0xffffffff,
          0x203f6000, 0x2);
  memcpy((void*)0x20000ff5, "/dev/vcsa#", 11);
  r[4] = syz_open_dev(0x20000ff5, 0xca4, 0x2000);
  *(uint32_t*)0x20ef0fdc = 0x8;
  *(uint32_t*)0x20ef0fe0 = 0x7;
  *(uint32_t*)0x20ef0fe4 = 0x7f;
  *(uint32_t*)0x20ef0fe8 = 0x8000;
  *(uint8_t*)0x20ef0fec = 0xfc;
  *(uint8_t*)0x20ef0fed = 0x81;
  *(uint8_t*)0x20ef0fee = 0x0;
  *(uint8_t*)0x20ef0fef = 0x1;
  *(uint32_t*)0x20ef0ff0 = 0x200;
  *(uint32_t*)0x20ef0ff4 = 0x8;
  *(uint32_t*)0x20ef0ff8 = 0x6;
  *(uint32_t*)0x20ef0ffc = 0x4;
  syscall(__NR_ioctl, r[4], 0x5402, 0x20ef0fdc);
  *(uint8_t*)0x20025000 = 0xaa;
  *(uint8_t*)0x20025001 = 0xaa;
  *(uint8_t*)0x20025002 = 0xaa;
  *(uint8_t*)0x20025003 = 0xaa;
  *(uint8_t*)0x20025004 = 0xaa;
  *(uint8_t*)0x20025005 = 0x0;
  *(uint8_t*)0x20025006 = 0xbb;
  *(uint8_t*)0x20025007 = 0xbb;
  *(uint8_t*)0x20025008 = 0xbb;
  *(uint8_t*)0x20025009 = 0xbb;
  *(uint8_t*)0x2002500a = 0xbb;
  *(uint8_t*)0x2002500b = 0x0;
  *(uint16_t*)0x2002500c = htobe16(0x800);
  STORE_BY_BITMASK(uint8_t, 0x2002500e, 0x6, 0, 4);
  STORE_BY_BITMASK(uint8_t, 0x2002500e, 0x4, 4, 4);
  STORE_BY_BITMASK(uint8_t, 0x2002500f, 0x0, 0, 2);
  STORE_BY_BITMASK(uint8_t, 0x2002500f, 0x0, 2, 6);
  *(uint16_t*)0x20025010 = htobe16(0x2c);
  *(uint16_t*)0x20025012 = htobe16(0x64);
  *(uint16_t*)0x20025014 = htobe16(0x0);
  *(uint8_t*)0x20025016 = 0x0;
  *(uint8_t*)0x20025017 = 0x4;
  *(uint16_t*)0x20025018 = 0x0;
  *(uint8_t*)0x2002501a = 0xac;
  *(uint8_t*)0x2002501b = 0x14;
  *(uint8_t*)0x2002501c = 0x0;
  *(uint8_t*)0x2002501d = 0xbb;
  *(uint8_t*)0x2002501e = 0xac;
  *(uint8_t*)0x2002501f = 0x14;
  *(uint8_t*)0x20025020 = 0x0;
  *(uint8_t*)0x20025021 = 0xaa;
  *(uint8_t*)0x20025022 = 0x0;
  *(uint8_t*)0x20025023 = 0x2;
  *(uint16_t*)0x20025026 = htobe16(0x4e20);
  *(uint16_t*)0x20025028 = htobe16(0x4e20);
  *(uint32_t*)0x2002502a = 0x42424242;
  *(uint32_t*)0x2002502e = 0x42424242;
  STORE_BY_BITMASK(uint8_t, 0x20025032, 0x0, 0, 1);
  STORE_BY_BITMASK(uint8_t, 0x20025032, 0x0, 1, 3);
  STORE_BY_BITMASK(uint8_t, 0x20025032, 0x5, 4, 4);
  *(uint8_t*)0x20025033 = 0x0;
  *(uint16_t*)0x20025034 = htobe16(0x0);
  *(uint16_t*)0x20025036 = 0x0;
  *(uint16_t*)0x20025038 = htobe16(0x0);
  struct csum_inet csum_1;
  csum_inet_init(&csum_1);
  csum_inet_update(&csum_1, (const uint8_t*)0x2002501a, 4);
  csum_inet_update(&csum_1, (const uint8_t*)0x2002501e, 4);
  uint16_t csum_1_chunk_2 = 0x600;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_2, 2);
  uint16_t csum_1_chunk_3 = 0x1400;
  csum_inet_update(&csum_1, (const uint8_t*)&csum_1_chunk_3, 2);
  csum_inet_update(&csum_1, (const uint8_t*)0x20025026, 20);
  *(uint16_t*)0x20025036 = csum_inet_digest(&csum_1);
  struct csum_inet csum_2;
  csum_inet_init(&csum_2);
  csum_inet_update(&csum_2, (const uint8_t*)0x2002500e, 24);
  *(uint16_t*)0x20025018 = csum_inet_digest(&csum_2);
  syz_emit_ethernet(0x3a, 0x20025000, 0x20000000);
}

int main()
{
  for (;;) {
    int pid = do_sandbox_none(0, true);
    int status = 0;
    while (waitpid(pid, &status, __WALL) != pid) {
    }
  }
}