// https://syzkaller.appspot.com/bug?id=e98697201e604df4f4214fa9f7691b1249801550
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/loop.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>

static unsigned long long procid;

static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) &&
      (addr < prog_start || addr > prog_end)) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  {                                                                            \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    }                                                                          \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
  }

static void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[1024];
};

static struct nlmsg nlmsg;

static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
                         const void* data, int size)
{
  memset(nlmsg, 0, sizeof(*nlmsg));
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_type = typ;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
  memcpy(hdr + 1, data, size);
  nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
                            int* reply_len)
{
  if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
    exit(1);
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
  struct sockaddr_nl addr;
  memset(&addr, 0, sizeof(addr));
  addr.nl_family = AF_NETLINK;
  unsigned n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                      (struct sockaddr*)&addr, sizeof(addr));
  if (n != hdr->nlmsg_len)
    exit(1);
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (hdr->nlmsg_type == NLMSG_DONE) {
    *reply_len = 0;
    return 0;
  }
  if (n < sizeof(struct nlmsghdr))
    exit(1);
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))
    exit(1);
  if (hdr->nlmsg_type != NLMSG_ERROR)
    exit(1);
  return -((struct nlmsgerr*)(hdr + 1))->error;
}

static int netlink_send(struct nlmsg* nlmsg, int sock)
{
  return netlink_send_ext(nlmsg, sock, 0, NULL);
}

static void netlink_device_change(struct nlmsg* nlmsg, int sock,
                                  const char* name, bool up, const char* master,
                                  const void* mac, int macsize,
                                  const char* new_name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  hdr.ifi_index = if_nametoindex(name);
  netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
  if (new_name)
    netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
  if (master) {
    int ifindex = if_nametoindex(master);
    netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
  }
  if (macsize)
    netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
                            const void* addr, int addrsize)
{
  struct ifaddrmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
  hdr.ifa_scope = RT_SCOPE_UNIVERSE;
  hdr.ifa_index = if_nametoindex(dev);
  netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
  netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
  return netlink_send(nlmsg, sock);
}

static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in_addr in_addr;
  inet_pton(AF_INET, addr, &in_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
  (void)err;
}

static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, addr, &in6_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
  (void)err;
}

static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
                              const void* addr, int addrsize, const void* mac,
                              int macsize)
{
  struct ndmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ndm_ifindex = if_nametoindex(name);
  hdr.ndm_state = NUD_PERMANENT;
  netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, NDA_DST, addr, addrsize);
  netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static int tunfd = -1;

#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"

#define IFF_NAPI 0x0010

static void initialize_tun(void)
{
  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;
  }
  const int kTunFd = 240;
  if (dup2(tunfd, kTunFd) < 0)
    exit(1);
  close(tunfd);
  tunfd = kTunFd;
  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    exit(1);
  }
  char sysctl[64];
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
  write_file(sysctl, "0");
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
  write_file(sysctl, "0");
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
  netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
  uint64_t macaddr = REMOTE_MAC;
  struct in_addr in_addr;
  inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
                    &macaddr, ETH_ALEN);
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
                    &macaddr, ETH_ALEN);
  macaddr = LOCAL_MAC;
  netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
                        NULL);
  close(sock);
}

struct fs_image_segment {
  void* data;
  uintptr_t size;
  uintptr_t offset;
};

#define IMAGE_MAX_SEGMENTS 4096
#define IMAGE_MAX_SIZE (129 << 20)

#define sys_memfd_create 319

static unsigned long fs_image_segment_check(unsigned long size,
                                            unsigned long nsegs, long segments)
{
  unsigned long i;
  struct fs_image_segment* segs = (struct fs_image_segment*)segments;
  if (nsegs > IMAGE_MAX_SEGMENTS)
    nsegs = IMAGE_MAX_SEGMENTS;
  for (i = 0; i < nsegs; i++) {
    if (segs[i].size > IMAGE_MAX_SIZE)
      segs[i].size = IMAGE_MAX_SIZE;
    segs[i].offset %= IMAGE_MAX_SIZE;
    if (segs[i].offset > IMAGE_MAX_SIZE - segs[i].size)
      segs[i].offset = IMAGE_MAX_SIZE - segs[i].size;
    if (size < segs[i].offset + segs[i].offset)
      size = segs[i].offset + segs[i].offset;
  }
  if (size > IMAGE_MAX_SIZE)
    size = IMAGE_MAX_SIZE;
  return size;
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile unsigned long size,
                            volatile unsigned long nsegs,
                            volatile long segments, volatile long flags,
                            volatile long optsarg)
{
  char loopname[64], fs[32], opts[256];
  int loopfd, err = 0, res = -1;
  unsigned long i;
  NONFAILING(size = fs_image_segment_check(size, nsegs, segments));
  int memfd = syscall(sys_memfd_create, "syz_mount_image", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (ftruncate(memfd, size)) {
    err = errno;
    goto error_close_memfd;
  }
  for (i = 0; i < nsegs; i++) {
    struct fs_image_segment* segs = (struct fs_image_segment*)segments;
    int res1 = 0;
    NONFAILING(res1 =
                   pwrite(memfd, segs[i].data, segs[i].size, segs[i].offset));
    if (res1 < 0) {
    }
  }
  snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  mkdir((char*)dir, 0777);
  memset(fs, 0, sizeof(fs));
  NONFAILING(strncpy(fs, (char*)fsarg, sizeof(fs) - 1));
  memset(opts, 0, sizeof(opts));
  NONFAILING(strncpy(opts, (char*)optsarg, sizeof(opts) - 32));
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    if (strstr(opts, "errors=panic") || strstr(opts, "errors=remount-ro") == 0)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  if (mount(loopname, (char*)dir, fs, flags, opts)) {
    err = errno;
    goto error_clear_loop;
  }
  res = 0;
error_clear_loop:
  ioctl(loopfd, LOOP_CLR_FD, 0);
error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return res;
}

static void setup_common()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 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 = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 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);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  initialize_tun();
  loop();
  exit(1);
}

static void setup_binfmt_misc()
{
  if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) {
  }
  write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:");
  write_file("/proc/sys/fs/binfmt_misc/register",
             ":syz1:M:1:\x02::./file0:POC");
}

void loop(void)
{
  NONFAILING(memcpy((void*)0x20000100, "./file0\000", 8));
  syscall(__NR_open, 0x20000100ul, 0x40c2ul, 0ul);
  NONFAILING(memcpy((void*)0x20000140, "minix\000", 6));
  NONFAILING(memcpy((void*)0x20000080, "./file0\000", 8));
  NONFAILING(*(uint64_t*)0x20000000 = 0x200000c0);
  NONFAILING(memcpy((void*)0x200000c0, "\x60\x00\x84\xe0\x02\x00\x0a\x00\x00"
                                       "\x00\x00\x01\x00\x00\x00\xc9\x8f\x13",
                    18));
  NONFAILING(*(uint64_t*)0x20000008 = 0x12);
  NONFAILING(*(uint64_t*)0x20000010 = 0x400);
  NONFAILING(*(uint64_t*)0x20000018 = 0x20000880);
  NONFAILING(memcpy(
      (void*)0x20000880,
      "\xee\x9f\x84\xa4\x3e\xcc\xaf\x13\x15\xbb\x39\x7d\x00\xc1\xb6\xdd\x82\x0d"
      "\xd1\x39\x16\x18\x1d\xba\x62\x09\x38\xcb\x30\xf1\xc2\x1a\xfe\x3d\x92\x62"
      "\x98\xb2\x58\x34\xe8\x90\x09\x2d\x64\x2c\xaf\xe5\xdb\x21\xba\x94\x94\xfc"
      "\xbc\xf6\x60\x79\xb7\x22\xe7\x3b\xe3\xa8\x70\x8a\x36\x24\x25\x0f\x9f\x59"
      "\xfb\xbe\x94\x29\x97\xc6\xc1\xe8\x3a\x34\xe5\x77\x9e\x8a\x4f\x40\xfd\xb6"
      "\xff\xe5\x9f\xfe\x49\x03\x50\x0d\x3c\xd8\xc8\xf3\xed\x19\xad\x17\x6d\xaf"
      "\x94\xcf\x7f\xca\xf2\x92\x2f\x8a\xab\x3b\xec\xc6\x0c\x8d\x39\xdd\xf4\x3c"
      "\xd6\xd2\xe9\x30\x1d\xa3\xca\xa3\x57\x19\xf2\x5a\x83\x47\x85\x59\xe0\xe8"
      "\x91\xdc\xb7\x56\xee\x22\x96\x4d\x03\xf3\x75\x61\xf5\x79\x74\x90\xa0\xb9"
      "\x35\x06\x48\x28\x22\x07\x5b\xa9\x6d\xb3\x5a\x44\x0d\x04\x6e\x44\xeb\x4a"
      "\x79\x98\x6b\x51\x82\x81\x60\x90\x03\xb6\xfa\xe0\x4a\x18\xbe\x9a\x83\xce"
      "\x7e\xfa\x2a\xb8\x0f\x75\xc9\x0d\x78\xf0\xb4\x17\x9d\x67\x43\x76\xdb\x1f"
      "\x7a\xe8\x74\x56\x41\xad\xcd\xe0\xd2\x45\x72\x27\x44\xbc\xea\x2f\xac\x94"
      "\x45\x01\x4e\xe2\x29\x39\x85\x11\x95\x73\xff\xcc\x0c\x22\xeb\x07\x69\xde"
      "\x1e\x9e\x5d\xb5\x3a\xa3\x37\x8a\x44\x26\x50\x30\x10\xa7\xc6\x24\x72\x65"
      "\x83\x82\x11\x52\x7a\x01\x32\xcc\xf8\x83\xee\x08\xa6\xea\x1a\x78\x5e\x47"
      "\xce\x16\x66\x3f\x1c\x74\x4a\xf4\x92\x00\xd5\xf3\xbc\x32\x6e\x7d\x90\x89"
      "\xa5\xf1\x7d\x0a\xd0\x5f\x06\xe4\x8c\x20\x5f\x9b\x6d\x08\x7b\xa7\xd3\xb6"
      "\x74\x5e\x65\x70\x0c\x00\x95\x72\xa6\x5b\x4b\xfb\xf6\x68\x78\x21\xbc\x72"
      "\x3b\x61\xb5\xab\xe7\x35\x7e\x68\xa9\xb0\x64\x0b\xfb\x9c\x01\x00\x00\x80"
      "\x00\x00\x00\x00\x0e\x84\x0e\xcf\x37\x9c\x57\x6c\x05\x75\x7d\x44\xb1\x9d"
      "\xe0\xe2\xaa\x36\x4c\x42\x15\x62\x19\xa7\x2c\xc9\x43\xa6\x0f\x04\x10\x89"
      "\x1e\xd1\x34\xf3\x5f\x5f\xe6\xb4\xcf\x3a\xbb\xcb\x98\x44\x36\x32\x23\x58"
      "\xa7\xc9\x39\x37\x24\x86\x0d\x87\x25\x39\x81\xf9\xe7\x9d\xbe\xb7\x89\x57"
      "\x7e\xad\x0e\xde\x31\xe1\x9a\x2b\x11\x4a\x0e\x4d\x82\xb3\xe1\x02\x3d\xd2"
      "\x8b\x63\x82\xe6\x7e\x32\x46\xd2\x91\x2e\x55\xcf\x99\x28\xda\x32\xc1\x02"
      "\x7c\xef\x7c\x6c\x61\x0e\xa8\xfc\xe1\x49\xa7\xaf\x20\x22\x4b\x4e\x02\x86"
      "\x01\x93\x6e\xf9\xa7\x8d\x80\xff\x55\x67\x08\x4e\xc1\x28\x76\x6e\x82\x2d"
      "\x61\x24\x18\x6d\x82\xe7\x60\x12\x8d\xd7\xde\x26\x53\x93\x9d\x35\x3c\x12"
      "\xf9\x6d\xef\xf3\xa2\x8b\x02\x2c\x78\x4b\xd3\x7d\xf7\xf7\x66\x40\xbc\xbc"
      "\xb0\x1a\x46\x76\xd5\x8b\x3e\x9c\x2b\xaa\xe6\x62\x30\xe5\xf5\x4a\x37\x52"
      "\x7e\x81\x29\xd1\x61\xb0\xc0\x6f\x25\x64\x8c\x55\xa7\xe5\xb2\xdb\x52\x80"
      "\x53\xc3\xe3\x86\x4f\x41\x72\x8b\x79\x35\xe5\x75\x56\x8a\xd1\x14\xeb\x8c"
      "\x81\x1b\xd8\x9e\x07\xa3\x98\xba\xbb\xc6\x4f\xbe\xab\x84\x26\x88\x55\x47"
      "\x83\xed\x15\x51\x94\x9a\x79\x1e\x33\x79\x9e\x59\xa3\x4b\x6b\xda\xbc\x34"
      "\x58\xc3\x79\xc7\x35\x19\x82\x92\xe5\xa2\x72\x18\x74\x49\x24\x9d\x2c\x8a"
      "\x9a\xa5\x8f\x38\x35\xa3\xe1\x71\x60\x83\xbb\x04\xe4\xcb\xe1\x40\xd1\x58"
      "\x7a\x21\xe4\xec\x2a\xe1\xf3\xad\x81\x13\x4d\xf5\x59\x03\xff\xb8\xe1\x73"
      "\x64\x63\x52\x91\x5a\x2c\x70\x67\x09\xcf\x46\x53\x89\x78\x22\x4c\x0d\x6d"
      "\xc4\x37\xcb\xfc\x37\xab\xfb\xd1\xb7\x6f\xeb\x5c\xa3\xae\xb1\xac\x8c\xbd"
      "\x40\xd5\xba\x89\x6f\x79\xee\x8f\x76\xb0\x80\x9f\x59\xb8\x68\x62\x64\x87"
      "\x74\xd2\xac\xe9\x8b\x82\x5e\x7a\x46\x5b\x5d\xd8\x0e\x49\x19\x65\x97\x1e"
      "\x77\x97\xab\xa3\x96\x84\x41\xc7\x77\x17\xa2\x4c\xa4\x1e\xfb\x16\x0c\x03"
      "\x0c\xfc\x8e\x73\x87\x25\x40\xef\x4e\x5a\xec\xb0\xde\x86\xdd\x2a\x75\xbe"
      "\xe6\x1a\x93\x03\xa3\x32\x23\x3f\xf5\xa2\x59\xb0\x78\xa6",
      806));
  NONFAILING(*(uint64_t*)0x20000020 = 0x326);
  NONFAILING(*(uint64_t*)0x20000028 = 0x34f9);
  syz_mount_image(0x20000140, 0x20000080, 0x200000000, 2, 0x20000000, 0, 0);
  NONFAILING(memcpy((void*)0x20000480, "./file0\000", 8));
  syscall(__NR_acct, 0x20000480ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  setup_binfmt_misc();
  install_segv_handler();
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}