// https://syzkaller.appspot.com/bug?id=7d9487e3d0194dbd2de9582c58bfd9659871f406
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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 <time.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/futex.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_link.h>
#include <linux/in6.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/veth.h>

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i;
  for (i = 0; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

#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))))

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_RELAXED))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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 int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset,
                            unsigned int total_len)
{
  struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset);
  if (offset == total_len || offset + hdr->nlmsg_len > total_len)
    return -1;
  return hdr->nlmsg_len;
}

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;
}

const int kInitNetNsFd = 239;

#define DEVLINK_FAMILY_NAME "devlink"

#define DEVLINK_CMD_PORT_GET 5
#define DEVLINK_CMD_RELOAD 37
#define DEVLINK_ATTR_BUS_NAME 1
#define DEVLINK_ATTR_DEV_NAME 2
#define DEVLINK_ATTR_NETDEV_NAME 7
#define DEVLINK_ATTR_NETNS_FD 137

static int netlink_devlink_id_get(struct nlmsg* nlmsg, int sock)
{
  struct genlmsghdr genlhdr;
  struct nlattr* attr;
  int err, n;
  uint16_t id = 0;
  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, DEVLINK_FAMILY_NAME,
               strlen(DEVLINK_FAMILY_NAME) + 1);
  err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n);
  if (err) {
    return -1;
  }
  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) {
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); /* recv ack */
  return id;
}

static void netlink_devlink_netns_move(const char* bus_name,
                                       const char* dev_name, int netns_fd)
{
  struct genlmsghdr genlhdr;
  int sock;
  int id;
  sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1)
    exit(1);
  id = netlink_devlink_id_get(&nlmsg, sock);
  if (id == -1)
    goto error;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = DEVLINK_CMD_RELOAD;
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1);
  netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1);
  netlink_attr(&nlmsg, DEVLINK_ATTR_NETNS_FD, &netns_fd, sizeof(netns_fd));
  netlink_send(&nlmsg, sock);
error:
  close(sock);
}

static struct nlmsg nlmsg2;

static void initialize_devlink_ports(const char* bus_name, const char* dev_name,
                                     const char* netdev_prefix)
{
  struct genlmsghdr genlhdr;
  int len, total_len, id, err, offset;
  uint16_t netdev_index;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1)
    exit(1);
  int rtsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (rtsock == -1)
    exit(1);
  id = netlink_devlink_id_get(&nlmsg, sock);
  if (id == -1)
    goto error;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = DEVLINK_CMD_PORT_GET;
  netlink_init(&nlmsg, id, NLM_F_DUMP, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1);
  netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1);
  err = netlink_send_ext(&nlmsg, sock, id, &total_len);
  if (err) {
    goto error;
  }
  offset = 0;
  netdev_index = 0;
  while ((len = netlink_next_msg(&nlmsg, offset, total_len)) != -1) {
    struct nlattr* attr = (struct nlattr*)(nlmsg.buf + offset + NLMSG_HDRLEN +
                                           NLMSG_ALIGN(sizeof(genlhdr)));
    for (; (char*)attr < nlmsg.buf + offset + len;
         attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
      if (attr->nla_type == DEVLINK_ATTR_NETDEV_NAME) {
        char* port_name;
        char netdev_name[IFNAMSIZ];
        port_name = (char*)(attr + 1);
        snprintf(netdev_name, sizeof(netdev_name), "%s%d", netdev_prefix,
                 netdev_index);
        netlink_device_change(&nlmsg2, rtsock, port_name, true, 0, 0, 0,
                              netdev_name);
        break;
      }
    }
    offset += len;
    netdev_index++;
  }
error:
  close(rtsock);
  close(sock);
}

static void initialize_devlink_pci(void)
{
  int netns = open("/proc/self/ns/net", O_RDONLY);
  if (netns == -1)
    exit(1);
  int ret = setns(kInitNetNsFd, 0);
  if (ret == -1)
    exit(1);
  netlink_devlink_netns_move("pci", "0000:00:10.0", netns);
  ret = setns(netns, 0);
  if (ret == -1)
    exit(1);
  close(netns);
  initialize_devlink_ports("pci", "0000:00:10.0", "netpci");
}

#define MAX_FDS 30

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();
  int netns = open("/proc/self/ns/net", O_RDONLY);
  if (netns == -1)
    exit(1);
  if (dup2(netns, kInitNetNsFd) < 0)
    exit(1);
  close(netns);
  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);
}

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_devlink_pci();
  loop();
  exit(1);
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  int i;
  for (i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void close_fds()
{
  int fd;
  for (fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  int i, call, thread;
  int collide = 0;
again:
  for (call = 0; call < 18; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      if (collide && (call % 2) == 0)
        break;
      event_timedwait(&th->done, 45);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
  close_fds();
  if (!collide) {
    collide = 1;
    goto again;
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res;
  switch (call) {
  case 0:
    *(uint32_t*)0x20000040 = 1;
    *(uint32_t*)0x20000044 = 0x70;
    *(uint8_t*)0x20000048 = 5;
    *(uint8_t*)0x20000049 = 0;
    *(uint8_t*)0x2000004a = 0;
    *(uint8_t*)0x2000004b = 0;
    *(uint32_t*)0x2000004c = 0;
    *(uint64_t*)0x20000050 = 1;
    *(uint64_t*)0x20000058 = 0x10;
    *(uint64_t*)0x20000060 = 0xe;
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0x9f, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x20000068, 0, 29, 35);
    *(uint32_t*)0x20000070 = 0;
    *(uint32_t*)0x20000074 = 0;
    *(uint64_t*)0x20000078 = 0;
    *(uint64_t*)0x20000080 = 0;
    *(uint64_t*)0x20000088 = 0;
    *(uint64_t*)0x20000090 = 0;
    *(uint32_t*)0x20000098 = 0;
    *(uint32_t*)0x2000009c = 0;
    *(uint64_t*)0x200000a0 = 0;
    *(uint32_t*)0x200000a8 = 0;
    *(uint16_t*)0x200000ac = 0;
    *(uint16_t*)0x200000ae = 0;
    res = syscall(__NR_perf_event_open, 0x20000040ul, 0, -1ul, -1, 0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    *(uint32_t*)0x2001d000 = 1;
    *(uint32_t*)0x2001d004 = 0x70;
    *(uint8_t*)0x2001d008 = 0;
    *(uint8_t*)0x2001d009 = 0;
    *(uint8_t*)0x2001d00a = 0;
    *(uint8_t*)0x2001d00b = 0;
    *(uint32_t*)0x2001d00c = 0;
    *(uint64_t*)0x2001d010 = 0;
    *(uint64_t*)0x2001d018 = 0;
    *(uint64_t*)0x2001d020 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 1, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 1, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 29, 35);
    *(uint32_t*)0x2001d030 = 0;
    *(uint32_t*)0x2001d034 = 0;
    *(uint64_t*)0x2001d038 = 0;
    *(uint64_t*)0x2001d040 = 0;
    *(uint64_t*)0x2001d048 = 0;
    *(uint64_t*)0x2001d050 = 0;
    *(uint32_t*)0x2001d058 = 0;
    *(uint32_t*)0x2001d05c = 0;
    *(uint64_t*)0x2001d060 = 0;
    *(uint32_t*)0x2001d068 = 0;
    *(uint16_t*)0x2001d06c = 0;
    *(uint16_t*)0x2001d06e = 0;
    res = syscall(__NR_perf_event_open, 0x2001d000ul, 0, -1ul, r[0], 0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 2:
    syscall(__NR_mmap, 0x20ffd000ul, 0x3000ul, 0ul, 0x11ul, r[1], 0);
    break;
  case 3:
    syscall(__NR_ioctl, r[0], 0x2405ul, r[1]);
    break;
  case 4:
    *(uint32_t*)0x2001d000 = 1;
    *(uint32_t*)0x2001d004 = 0x70;
    *(uint8_t*)0x2001d008 = 0;
    *(uint8_t*)0x2001d009 = 0;
    *(uint8_t*)0x2001d00a = 0;
    *(uint8_t*)0x2001d00b = 0;
    *(uint32_t*)0x2001d00c = 0;
    *(uint64_t*)0x2001d010 = 0x41be;
    *(uint64_t*)0x2001d018 = 0;
    *(uint64_t*)0x2001d020 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x2001d028, 0, 29, 35);
    *(uint32_t*)0x2001d030 = 0;
    *(uint32_t*)0x2001d034 = 4;
    *(uint64_t*)0x2001d038 = 0;
    *(uint64_t*)0x2001d040 = 0;
    *(uint64_t*)0x2001d048 = 0x200;
    *(uint64_t*)0x2001d050 = 0;
    *(uint32_t*)0x2001d058 = 0;
    *(uint32_t*)0x2001d05c = 0;
    *(uint64_t*)0x2001d060 = 0;
    *(uint32_t*)0x2001d068 = 0;
    *(uint16_t*)0x2001d06c = 0;
    *(uint16_t*)0x2001d06e = 0;
    syscall(__NR_perf_event_open, 0x2001d000ul, 0, -1ul, -1, 0ul);
    break;
  case 5:
    syscall(__NR_ioctl, -1, 0x8912ul, 0ul);
    break;
  case 6:
    syscall(__NR_perf_event_open, 0ul, 0, -1ul, -1, 0ul);
    break;
  case 7:
    syscall(__NR_sendmsg, -1, 0ul, 0ul);
    break;
  case 8:
    memcpy((void*)0x20000240, "./bus\000", 6);
    res = syscall(__NR_creat, 0x20000240ul, 0ul);
    if (res != -1)
      r[2] = res;
    break;
  case 9:
    syscall(__NR_ftruncate, r[2], 0x2081fcul);
    break;
  case 10:
    memcpy((void*)0x2000fffa, "./bus\000", 6);
    res = syscall(__NR_open, 0x2000fffaul, 0x141042ul, 0ul);
    if (res != -1)
      r[3] = res;
    break;
  case 11:
    syscall(__NR_mmap, 0x20001000ul, 0xa000ul, 0x800002ul, 0x11ul, r[3], 0);
    break;
  case 12:
    memcpy((void*)0x2000fffa, "./bus\000", 6);
    syscall(__NR_open, 0x2000fffaul, 0x141042ul, 0ul);
    break;
  case 13:
    syscall(__NR_clone, 0ul, 0x20000680ul, 0x20000040ul, 0ul, 0x20000700ul);
    break;
  case 14:
    syscall(__NR_preadv, -1, 0x200017c0ul, 0x3a8ul, 0ul);
    break;
  case 15:
    *(uint64_t*)0x20000b40 = 0x200006c0;
    memcpy((void*)0x200006c0,
           "\x96\x30\x61\x0d\x16\xca\xa3\x46\x92\x4d\x5e\x56\x5f\x7e\xe3\x54"
           "\x93\xd5\xc8\x6f\x32\x6f\xab\x94\x23\xba\x47\x41\xa5\x6e\x09\x83"
           "\xf5\xb7\x5a\xd3\x97\xcb\xc0\xf5\x70\x7a\x54\x2c\x1a\x13\x1d\x64"
           "\x9b\x13\x5e\x13\x24\xd3\x36\x75\xfd\xc0\x9e\x8a\x38\x30\x13\x42"
           "\xac\xa7\xf8\xb1\x96\xc7\x18\x37\xac\xa8\x08\x7b\x51\xc8\x3d\xe3"
           "\x02\x86\x5e\x57\xd4\x57\xdc\x19\xdc\x2f\xd6\xb5\x34\x4d\x66\x32"
           "\x7e\x27\x98\xd8\xe4\x70\xba\x1a\xfc\x08\xe1\xa6\xc3\xc8\xa8\xf1"
           "\xdb\x60\xd7\x27\xfe\x25\xf9\x4d\x36\xc2\xc1\xb1\x71\x56\x2c\x3b"
           "\x63\x88\xbe\x26\x31\x5c\xbb\x8a\x33\x86\x76\x46\xd2\xfb\x83\x85"
           "\x86\x89\x6c\xd2\x8e\xa2\xf9\xae\x30\xcd\x60\xe6\xb0\xd0\x3d\xa0"
           "\xcd\x36\xac\xca\x4f\x8e\xc7\x17\x84",
           169);
    *(uint64_t*)0x20000b48 = 0xa9;
    *(uint64_t*)0x20000b50 = 0x20000780;
    *(uint64_t*)0x20000b58 = 0;
    *(uint64_t*)0x20000b60 = 0x20000840;
    memcpy((void*)0x20000840,
           "\x2d\x3f\x16\x2d\x94\x93\x06\x07\x50\xef\x8b\x4b\x9f\xd2\x05\x22"
           "\x3e\xaf\xcf\x17\x5b\x4d\xd1\x3d\x1f\x26\x34\x65\x73\x2a\x72\xbd"
           "\x46\xc9\x7c\x3c\x3f\xa5\x0f\xa9\xa5\x69\xd3\xb1\x47\xed\x85\xf6"
           "\x84\xd6\x29\x10\xd5\xb0\x47\x21\x46\x05\xad\xad\xe5\x7f\xd2\xf6"
           "\xdb\x09\xea\xbd\xf7\xb7\xa1\x4c\x7e\x9b\xed\xac\x68\xd6\xc3\xe9"
           "\x0a\xae\x90\x23\x3f\x77\xbd\x40\x2f\x33\x38\xf4\xd0\xc4\x56\x48"
           "\x0f\x04\xa6\x68\x46\xd5\x55\xcd\xc8\x12\xb5\x1e\x3f\x40\x9c\x96"
           "\x5f\x78\x41\xe0\x2a\xdd\x9b\x9d\x83\x77\xb9\xca\x4f\x94\xb6\x61"
           "\x0a\x03\xfd\xed\x07\x95\x26\x65\x65",
           137);
    *(uint64_t*)0x20000b68 = 0x89;
    *(uint64_t*)0x20000b70 = 0x20000900;
    memcpy((void*)0x20000900,
           "\xde\xc8\x2b\xe6\x04\x0e\x48\x58\x4d\xcf\x93\x21\x29\x90\xc5\x4c"
           "\x80\x86\xca\x01\xaf\x22\xc7\x36\xb4\x7b\x40\xa3\x21\xe0\x1c\xe4"
           "\xf2\x73\x1f\x2f\x51\x14\xd9\x55\xdd\x5e\x16\xda\x43\x18\x1e\xea"
           "\x04\x33\x1e\x07\x19\xbf\x86\xb1\xec\x17\xf7\xdd\xc7\x75\x2b\xdb"
           "\x1f\x33\x1d\x3e\xda\x02\xbf\x93\x41\xe7\x5d\xd0\x1f\x4c\x97\x58"
           "\x5a\x7a\x2d\x8a\xe4\xc2\xf3\x32\x46\x35\xfc\x09\x72\xcd\x7d\x73"
           "\xe0\x98\x7d\xcb\x37\x60\xdd\xba\xbf\x2c\x35\x15\x69\x24\x93\xb9"
           "\x0e\xba\xc7\x9c\x17\x9e\x11\x13\x06\xe1\xe9\x11\x0a\xe4\xe8\xd3"
           "\xe2\xf2\x5c\x03",
           132);
    *(uint64_t*)0x20000b78 = 0x84;
    *(uint64_t*)0x20000b80 = 0;
    *(uint64_t*)0x20000b88 = 0;
    *(uint64_t*)0x20000b90 = 0;
    *(uint64_t*)0x20000b98 = 0;
    *(uint64_t*)0x20000ba0 = 0x200009c0;
    memcpy((void*)0x200009c0, "\x3c\x8d\x2e\x53\x7b\x11\x4e\xca\xb5\x54\xc1\xe6"
                              "\x1f\x9e\xea\xdb\x39\xfa\xcb\x57\x49\x49\xf6\x3f"
                              "\x8d\x94\xe0\x51\x97\xfa\xc0\x83\x28\x15\x2a\x57"
                              "\x3b\xbb\xd8\x60\xd2\x30\xac\x84\x3a\xc5\x10\xd2"
                              "\x22\x8d\xb1\x33\xe1\x20\xcb\xf6\x88",
           57);
    *(uint64_t*)0x20000ba8 = 0x39;
    *(uint64_t*)0x20000bb0 = 0;
    *(uint64_t*)0x20000bb8 = 0;
    *(uint64_t*)0x20000bc0 = 0x20000a80;
    *(uint64_t*)0x20000bc8 = 0;
    syscall(__NR_writev, -1, 0x20000b40ul, 9ul);
    break;
  case 16:
    memcpy(
        (void*)0x20000280,
        "mem\000\001y7\211\311B\253\343\372\000\357\202\261^"
        "\035\365\003\313\305\302@"
        "\364\223\345\327s\344\016\213\322\b\251\"\0250\347-"
        "\206\265\n\356\346\350\022\016\377\241:"
        "\304\302\363\204q\245\nJ\035\325\020\310="
        "\276\310\335\262r\377\246\222\311\331\017BNm\252\177\331GO\"2\030\366"
        "\274\374\254\244\220\2415\201B:z\267w\201="
        "A\325yr0\r\247v\020d\266\345Q\256\371W\310\223\350\006O\207k8I\246\273"
        "\356\352\320\024B\245D\240\000Q\210\302\326\037\315o\313\023\f{I^\334:"
        "P\357\001\v\016RZl\2226eUA\304\350\266\333\231\332\365\236E\336\021",
        178);
    res = syscall(__NR_openat, -1, 0x20000280ul, 0ul, 0ul);
    if (res != -1)
      r[4] = res;
    break;
  case 17:
    *(uint64_t*)0x20000180 = 0x200000c0;
    *(uint64_t*)0x20000188 = 0xb50316f;
    syscall(__NR_preadv, r[4], 0x20000180ul, 1ul, 0x2000107cul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  do_sandbox_none();
  return 0;
}