// https://syzkaller.appspot.com/bug?id=5b10d019a15750e7acff4d12e797cccd77ca4eb1
// 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 <netinet/in.h>
#include <sched.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/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/in6.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/nl80211.h>
#include <linux/rfkill.h>
#include <linux/rtnetlink.h>
#include <linux/veth.h>

#ifndef __NR_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_mkdirat
#define __NR_mkdirat 34
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_mount
#define __NR_mount 40
#endif
#ifndef __NR_openat
#define __NR_openat 56
#endif
#ifndef __NR_sendmsg
#define __NR_sendmsg 211
#endif
#ifndef __NR_socket
#define __NR_socket 198
#endif
#ifndef __NR_write
#define __NR_write 64
#endif

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

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[4096];
};

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;
  if (size > 0)
    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, bool dofail)
{
  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;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

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

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                                         NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static struct nlmsg nlmsg;

#define WIFI_INITIAL_DEVICE_COUNT 2
#define WIFI_MAC_BASE {0x08, 0x02, 0x11, 0x00, 0x00, 0x00}
#define WIFI_IBSS_BSSID {0x50, 0x50, 0x50, 0x50, 0x50, 0x50}
#define WIFI_IBSS_SSID {0x10, 0x10, 0x10, 0x10, 0x10, 0x10}
#define WIFI_DEFAULT_FREQUENCY 2412
#define WIFI_DEFAULT_SIGNAL 0
#define WIFI_DEFAULT_RX_RATE 1
#define HWSIM_CMD_REGISTER 1
#define HWSIM_CMD_FRAME 2
#define HWSIM_CMD_NEW_RADIO 4
#define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14
#define HWSIM_ATTR_PERM_ADDR 22

#define IF_OPER_UP 6
struct join_ibss_props {
  int wiphy_freq;
  bool wiphy_freq_fixed;
  uint8_t* mac;
  uint8_t* ssid;
  int ssid_len;
};

static int set_interface_state(const char* interface_name, int on)
{
  struct ifreq ifr;
  int sock = socket(AF_INET, SOCK_DGRAM, 0);
  if (sock < 0) {
    return -1;
  }
  memset(&ifr, 0, sizeof(ifr));
  strcpy(ifr.ifr_name, interface_name);
  int ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
  if (ret < 0) {
    close(sock);
    return -1;
  }
  if (on)
    ifr.ifr_flags |= IFF_UP;
  else
    ifr.ifr_flags &= ~IFF_UP;
  ret = ioctl(sock, SIOCSIFFLAGS, &ifr);
  close(sock);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static int nl80211_set_interface(struct nlmsg* nlmsg, int sock,
                                 int nl80211_family, uint32_t ifindex,
                                 uint32_t iftype, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = NL80211_CMD_SET_INTERFACE;
  netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
  netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype));
  int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail);
  if (err < 0) {
  }
  return err;
}

static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family,
                             uint32_t ifindex, struct join_ibss_props* props,
                             bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = NL80211_CMD_JOIN_IBSS;
  netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
  netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len);
  netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq),
               sizeof(props->wiphy_freq));
  if (props->mac)
    netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN);
  if (props->wiphy_freq_fixed)
    netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0);
  int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail);
  if (err < 0) {
  }
  return err;
}

static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail)
{
  struct ifinfomsg info;
  memset(&info, 0, sizeof(info));
  info.ifi_family = AF_UNSPEC;
  info.ifi_index = ifindex;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1) {
    return -1;
  }
  netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info));
  int n;
  int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail);
  close(sock);
  if (err) {
    return -1;
  }
  struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf));
  for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) {
    if (attr->rta_type == IFLA_OPERSTATE)
      return *((int32_t*)RTA_DATA(attr));
  }
  return -1;
}

static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface,
                                int operstate, bool dofail)
{
  int ifindex = if_nametoindex(interface);
  while (true) {
    usleep(1000);
    int ret = get_ifla_operstate(nlmsg, ifindex, dofail);
    if (ret < 0)
      return ret;
    if (ret == operstate)
      return 0;
  }
  return 0;
}

static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock,
                                        int nl80211_family_id, char* interface,
                                        struct join_ibss_props* ibss_props,
                                        bool dofail)
{
  int ifindex = if_nametoindex(interface);
  if (ifindex == 0) {
    return -1;
  }
  int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex,
                                  NL80211_IFTYPE_ADHOC, dofail);
  if (ret < 0) {
    return -1;
  }
  ret = set_interface_state(interface, 1);
  if (ret < 0) {
    return -1;
  }
  ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props,
                          dofail);
  if (ret < 0) {
    return -1;
  }
  return 0;
}

static int hwsim80211_create_device(struct nlmsg* nlmsg, int sock,
                                    int hwsim_family,
                                    uint8_t mac_addr[ETH_ALEN])
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = HWSIM_CMD_NEW_RADIO;
  netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, HWSIM_ATTR_SUPPORT_P2P_DEVICE, NULL, 0);
  netlink_attr(nlmsg, HWSIM_ATTR_PERM_ADDR, mac_addr, ETH_ALEN);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
  return err;
}

static void initialize_wifi_devices(void)
{
  int rfkill = open("/dev/rfkill", O_RDWR);
  if (rfkill == -1)
    exit(1);
  struct rfkill_event event = {0};
  event.type = RFKILL_TYPE_ALL;
  event.op = RFKILL_OP_CHANGE_ALL;
  if (write(rfkill, &event, sizeof(event)) != (ssize_t)(sizeof(event)))
    exit(1);
  close(rfkill);
  uint8_t mac_addr[6] = WIFI_MAC_BASE;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock < 0)
    exit(1);
  int hwsim_family_id =
      netlink_query_family_id(&nlmsg, sock, "MAC80211_HWSIM", true);
  int nl80211_family_id =
      netlink_query_family_id(&nlmsg, sock, "nl80211", true);
  if (hwsim_family_id < 0 || nl80211_family_id < 0)
    exit(1);
  uint8_t ssid[] = WIFI_IBSS_SSID;
  uint8_t bssid[] = WIFI_IBSS_BSSID;
  struct join_ibss_props ibss_props = {.wiphy_freq = WIFI_DEFAULT_FREQUENCY,
                                       .wiphy_freq_fixed = true,
                                       .mac = bssid,
                                       .ssid = ssid,
                                       .ssid_len = sizeof(ssid)};
  for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
    mac_addr[5] = device_id;
    int ret = hwsim80211_create_device(&nlmsg, sock, hwsim_family_id, mac_addr);
    if (ret < 0)
      exit(1);
    char interface[6] = "wlan0";
    interface[4] += device_id;
    if (nl80211_setup_ibss_interface(&nlmsg, sock, nl80211_family_id, interface,
                                     &ibss_props, true) < 0)
      exit(1);
  }
  for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
    char interface[6] = "wlan0";
    interface[4] += device_id;
    int ret = await_ifla_operstate(&nlmsg, interface, IF_OPER_UP, true);
    if (ret < 0)
      exit(1);
  }
  close(sock);
}

static long syz_genetlink_get_family_id(volatile long name,
                                        volatile long sock_arg)
{
  int fd = sock_arg;
  if (fd < 0) {
    fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
    if (fd == -1) {
      return -1;
    }
  }
  struct nlmsg nlmsg_tmp;
  int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false);
  if ((int)sock_arg < 0)
    close(fd);
  if (ret < 0) {
    return -1;
  }
  return ret;
}

static void setup_gadgetfs();
static void setup_binderfs();
static void setup_fusectl();
static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL,
            bind_mount_flags, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mount("/proc/sys/fs/binfmt_misc",
            "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags,
            NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/newroot/syz-inputs", 0700))
    exit(1);
  if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL,
            bind_mount_flags | MS_RDONLY, NULL) &&
      errno != ENOENT)
    exit(1);
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
  setup_gadgetfs();
  setup_binderfs();
  setup_fusectl();
}

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  if (getppid() == 1)
    exit(1);
  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 = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  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);
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_wifi_devices();
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0};

void loop(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  mkdirat arguments: [
  //    fd: fd_dir (resource)
  //    path: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    mode: open_mode = 0x1ff (8 bytes)
  //  ]
  memcpy((void*)0x20000000, "./sys\000", 6);
  syscall(
      __NR_mkdirat, /*fd=*/0xffffff9c, /*path=*/0x20000000ul,
      /*mode=S_IXOTH|S_IWOTH|S_IROTH|S_IXGRP|S_IWGRP|S_IRGRP|S_IXUSR|S_IWUSR|0x100*/
      0x1fful);
  //  mount arguments: [
  //    src: nil
  //    dst: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 00} (length 0x6)
  //    }
  //    type: ptr[in, buffer] {
  //      buffer: {73 79 73 66 73 00} (length 0x6)
  //    }
  //    flags: mount_flags = 0x0 (8 bytes)
  //    data: nil
  //  ]
  memcpy((void*)0x20000000, "./sys\000", 6);
  memcpy((void*)0x20000080, "sysfs\000", 6);
  syscall(__NR_mount, /*src=*/0ul, /*dst=*/0x20000000ul, /*type=*/0x20000080ul,
          /*flags=*/0ul, /*data=*/0ul);
  //  openat arguments: [
  //    fd: fd_dir (resource)
  //    file: ptr[in, buffer] {
  //      buffer: {2e 2f 73 79 73 2f 6d 6f 64 75 6c 65 2f 63 66 67 38 30 32 31
  //      31 2f 70 61 72 61 6d 65 74 65 72 73 2f 62 73 73 5f 65 6e 74 72 69 65
  //      73 5f 6c 69 6d 69 74 00} (length 0x33)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: open_mode = 0x0 (2 bytes)
  //  ]
  //  returns fd
  memcpy((void*)0x20000100,
         "./sys/module/cfg80211/parameters/bss_entries_limit\000", 51);
  res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000100ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  write arguments: [
  //    fd: fd (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {31 0a} (length 0x2)
  //    }
  //    count: len = 0x2 (8 bytes)
  //  ]
  memcpy((void*)0x20000200, "1\n", 2);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x20000200ul, /*count=*/2ul);
  //  socket$nl_generic arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x10 (4 bytes)
  //  ]
  //  returns sock_nl_generic
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[1] = res;
  //  syz_genetlink_get_family_id$nl80211 arguments: [
  //    name: ptr[in, buffer] {
  //      buffer: {6e 6c 38 30 32 31 31 00} (length 0x8)
  //    }
  //    fd: sock_nl_generic (resource)
  //  ]
  //  returns nl80211_family_id
  memcpy((void*)0x20000680, "nl80211\000", 8);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x20000680, /*fd=*/-1);
  if (res != -1)
    r[2] = res;
  //  ioctl$sock_SIOCGIFINDEX_80211 arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8933 (4 bytes)
  //    arg: ptr[out, ifreq_dev_t[nl80211_devnames, nl80211_ifindex]] {
  //      ifreq_dev_t[nl80211_devnames, nl80211_ifindex] {
  //        ifr_ifrn: buffer: {77 6c 61 6e 30 00 00 00 00 00 00 00 00 00 00 00}
  //        (length 0x10) elem: nl80211_ifindex (resource) pad = 0x0 (20 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x20003540, "wlan0\000\000\000\000\000\000\000\000\000\000\000",
         16);
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933, /*arg=*/0x20003540ul);
  if (res != -1)
    r[3] = *(uint32_t*)0x20003550;
  //  sendmsg$NL80211_CMD_FRAME arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //    msg_nl80211_payload[NL80211_CMD_FRAME, nl80211_wdev_payload],
  //    nl80211_policy$mgmt_frame]]] {
  //      msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //      msg_nl80211_payload[NL80211_CMD_FRAME, nl80211_wdev_payload],
  //      nl80211_policy$mgmt_frame]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[nl80211_family_id,
  //        msg_nl80211_payload[NL80211_CMD_FRAME, nl80211_wdev_payload],
  //        nl80211_policy$mgmt_frame]]] {
  //          iovec[in, netlink_msg_t[nl80211_family_id,
  //          msg_nl80211_payload[NL80211_CMD_FRAME, nl80211_wdev_payload],
  //          nl80211_policy$mgmt_frame]] {
  //            addr: ptr[in, netlink_msg_t[nl80211_family_id,
  //            msg_nl80211_payload[NL80211_CMD_FRAME, nl80211_wdev_payload],
  //            nl80211_policy$mgmt_frame]] {
  //              netlink_msg_t[nl80211_family_id,
  //              msg_nl80211_payload[NL80211_CMD_FRAME, nl80211_wdev_payload],
  //              nl80211_policy$mgmt_frame] {
  //                len: len = 0x54 (4 bytes)
  //                type: nl80211_family_id (resource)
  //                flags: netlink_msg_flags = 0x1 (2 bytes)
  //                seq: int32 = 0x70bd27 (4 bytes)
  //                pid: int32 = 0x25dfdbfb (4 bytes)
  //                payload: msg_nl80211_payload[NL80211_CMD_FRAME,
  //                nl80211_wdev_payload] {
  //                  genl_hdr: genlmsghdr_t[NL80211_CMD_FRAME] {
  //                    cmd: const = 0x3b (1 bytes)
  //                    version: const = 0x0 (1 bytes)
  //                    reserved: const = 0x0 (2 bytes)
  //                  }
  //                  payload: nl80211_wdev_payload {
  //                    NL80211_ATTR_IFINDEX: union
  //                    optional[nlattr[NL80211_ATTR_IFINDEX, nl80211_ifindex]]
  //                    {
  //                      val: nlattr_t[const[NL80211_ATTR_IFINDEX, int16],
  //                      nl80211_ifindex] {
  //                        nla_len: offsetof = 0x8 (2 bytes)
  //                        nla_type: const = 0x3 (2 bytes)
  //                        payload: nl80211_ifindex (resource)
  //                        size: buffer: {} (length 0x0)
  //                      }
  //                    }
  //                    NL80211_ATTR_WDEV: union
  //                    optional[nlattr[NL80211_ATTR_WDEV, nl80211_wdev]] {
  //                      void: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //                attrs: array[nl80211_policy$mgmt_frame] {
  //                  union nl80211_policy$mgmt_frame {
  //                    NL80211_ATTR_FRAME: nlattr_t[const[NL80211_ATTR_FRAME,
  //                    int16], ieee80211_mgmt_frame] {
  //                      nla_len: offsetof = 0x35 (2 bytes)
  //                      nla_type: const = 0x33 (2 bytes)
  //                      payload: union ieee80211_mgmt_frame {
  //                        beacon: ieee80211_mgmt_beacon {
  //                          header:
  //                          ieee80211_mgmt_header[IEEE80211_MGMT_FRAME_BEACON]
  //                          {
  //                            fc: ieee80211_fc[0, 0,
  //                            const[IEEE80211_MGMT_FRAME_TYPE, int8:2],
  //                            const[IEEE80211_MGMT_FRAME_BEACON, int8:4]] {
  //                              version: const = 0x0 (0 bytes)
  //                              type: const = 0x0 (0 bytes)
  //                              subtype: const = 0x8 (1 bytes)
  //                              to_ds: const = 0x0 (0 bytes)
  //                              from_ds: const = 0x0 (0 bytes)
  //                              more: int8 = 0x0 (0 bytes)
  //                              retry: int8 = 0x1 (0 bytes)
  //                              power_mgmt: int8 = 0x0 (0 bytes)
  //                              more_data: int8 = 0x0 (0 bytes)
  //                              protected: const = 0x0 (0 bytes)
  //                              order: int8 = 0x0 (1 bytes)
  //                            }
  //                            duration: ieee80211_duration {
  //                              duration: int16 = 0xe (1 bytes)
  //                              nav_flag: const = 0x0 (1 bytes)
  //                            }
  //                            addr_1: union ieee80211_mac_addr {
  //                              broadcast: buffer: {ff ff ff ff ff ff} (length
  //                              0x6)
  //                            }
  //                            addr_2: union ieee80211_mac_addr {
  //                              device_a: ieee80211_fixed_mac_addr[const[0x0,
  //                              int8]] {
  //                                byte0: const = 0x8 (1 bytes)
  //                                byte1: const = 0x2 (1 bytes)
  //                                byte2: const = 0x11 (1 bytes)
  //                                byte3: const = 0x0 (1 bytes)
  //                                byte4: const = 0x0 (1 bytes)
  //                                byte5: const = 0x0 (1 bytes)
  //                              }
  //                            }
  //                            addr_3: union ieee80211_bssid {
  //                              random: buffer: {26 68 e8 a3 b7 55} (length
  //                              0x6)
  //                            }
  //                            seqno: ieee80211_seq_control {
  //                              frag_number: int16 = 0x8 (0 bytes)
  //                              seq_number: int16 = 0x6 (2 bytes)
  //                            }
  //                            ht: union
  //                            _ieee80211_mgmt_header[IEEE80211_MGMT_FRAME_BEACON]_ht_wrapper
  //                            {
  //                              void: buffer: {} (length 0x0)
  //                            }
  //                          }
  //                          timestamp: int64 = 0x1 (8 bytes)
  //                          beacon_interval: union
  //                          ieee80211_beacon_interval[int16] {
  //                            random: int16 = 0x5 (2 bytes)
  //                          }
  //                          capability: ieee80211_capabilities = 0x7683 (2
  //                          bytes) ssid: union optional[ieee80211_ie_ssid] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          supported_rates: union
  //                          optional[ieee80211_ie_supported_rates] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          dsss: union optional[ieee80211_ie_dsss] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          cf: union optional[ieee80211_ie_cf] {
  //                            val:
  //                            ieee80211_generic_ie[const[WLAN_EID_CF_PARAMS,
  //                            int8], ieee80211_ie_cf_payload] {
  //                              id: const = 0x4 (1 bytes)
  //                              len: len = 0x6 (1 bytes)
  //                              data: ieee80211_ie_cf_payload {
  //                                count: int8 = 0x2 (1 bytes)
  //                                period: int8 = 0x7 (1 bytes)
  //                                max_duration: int16 = 0x2 (2 bytes)
  //                                dur_remaining: int16 = 0x8337 (2 bytes)
  //                              }
  //                            }
  //                          }
  //                          ibss: union optional[ieee80211_ie_ibss] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          tim: union optional[ieee80211_ie_tim] {
  //                            val: ieee80211_generic_ie[const[WLAN_EID_TIM,
  //                            int8], ieee80211_ie_tim_payload] {
  //                              id: const = 0x5 (1 bytes)
  //                              len: len = 0x3 (1 bytes)
  //                              data: ieee80211_ie_tim_payload {
  //                                dtim_count: int8 = 0xf1 (1 bytes)
  //                                dtim_period: int8 = 0xff (1 bytes)
  //                                bitmap_control: int8 = 0x1 (1 bytes)
  //                                partial_bitmap: buffer: {} (length 0x0)
  //                              }
  //                            }
  //                          }
  //                          chsw: union optional[ieee80211_ie_channel_switch]
  //                          {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          erp: union optional[ieee80211_ie_erp] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          expt_chsw: union
  //                          optional[ieee80211_ie_ext_channel_switch] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          ht: union optional[ieee80211_ie_ht] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          mesh_id: union optional[ieee80211_ie_mesh_id] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          mesh_config: union
  //                          optional[ieee80211_ie_mesh_config] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          mesh_chsw: union
  //                          optional[ieee80211_ie_mesh_channel_switch] {
  //                            void: buffer: {} (length 0x0)
  //                          }
  //                          vendor:
  //                          array[ieee80211_generic_ie[const[WLAN_EID_VENDOR_SPECIFIC,
  //                          int8], array[int8, 6:255]]] {
  //                          }
  //                        }
  //                      }
  //                      size: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x54 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x20040040 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x8800 (8 bytes)
  //  ]
  *(uint64_t*)0x20003740 = 0;
  *(uint32_t*)0x20003748 = 0;
  *(uint64_t*)0x20003750 = 0x20003700;
  *(uint64_t*)0x20003700 = 0x20000080;
  *(uint32_t*)0x20000080 = 0x54;
  *(uint16_t*)0x20000084 = r[2];
  *(uint16_t*)0x20000086 = 1;
  *(uint32_t*)0x20000088 = 0x70bd27;
  *(uint32_t*)0x2000008c = 0x25dfdbfb;
  *(uint8_t*)0x20000090 = 0x3b;
  *(uint8_t*)0x20000091 = 0;
  *(uint16_t*)0x20000092 = 0;
  *(uint16_t*)0x20000094 = 8;
  *(uint16_t*)0x20000096 = 3;
  *(uint32_t*)0x20000098 = r[3];
  *(uint16_t*)0x2000009c = 0x35;
  *(uint16_t*)0x2000009e = 0x33;
  STORE_BY_BITMASK(uint8_t, , 0x200000a0, 0, 0, 2);
  STORE_BY_BITMASK(uint8_t, , 0x200000a0, 0, 2, 2);
  STORE_BY_BITMASK(uint8_t, , 0x200000a0, 8, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 0, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 1, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 2, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 4, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 5, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 6, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000a1, 0, 7, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000a2, 0xe, 0, 15);
  STORE_BY_BITMASK(uint16_t, , 0x200000a3, 0, 7, 1);
  memset((void*)0x200000a4, 255, 6);
  *(uint8_t*)0x200000aa = 8;
  *(uint8_t*)0x200000ab = 2;
  *(uint8_t*)0x200000ac = 0x11;
  *(uint8_t*)0x200000ad = 0;
  *(uint8_t*)0x200000ae = 0;
  *(uint8_t*)0x200000af = 0;
  memcpy((void*)0x200000b0, "\x26\x68\xe8\xa3\xb7\x55", 6);
  STORE_BY_BITMASK(uint16_t, , 0x200000b6, 8, 0, 4);
  STORE_BY_BITMASK(uint16_t, , 0x200000b6, 6, 4, 12);
  *(uint64_t*)0x200000b8 = 1;
  *(uint16_t*)0x200000c0 = 5;
  *(uint16_t*)0x200000c2 = 0x7683;
  *(uint8_t*)0x200000c4 = 4;
  *(uint8_t*)0x200000c5 = 6;
  *(uint8_t*)0x200000c6 = 2;
  *(uint8_t*)0x200000c7 = 7;
  *(uint16_t*)0x200000c8 = 2;
  *(uint16_t*)0x200000ca = 0x8337;
  *(uint8_t*)0x200000cc = 5;
  *(uint8_t*)0x200000cd = 3;
  *(uint8_t*)0x200000ce = 0xf1;
  *(uint8_t*)0x200000cf = -1;
  *(uint8_t*)0x200000d0 = 1;
  *(uint64_t*)0x20003708 = 0x54;
  *(uint64_t*)0x20003758 = 1;
  *(uint64_t*)0x20003760 = 0;
  *(uint64_t*)0x20003768 = 0;
  *(uint32_t*)0x20003770 = 0x20040040;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x20003740ul,
          /*f=MSG_MORE|MSG_CONFIRM*/ 0x8800ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  do_sandbox_none();
  return 0;
}