// https://syzkaller.appspot.com/bug?id=bc2bc9da2825a560d04dbe2039655f62599b27d7
// 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 <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/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>

unsigned long long procid;

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;
}

#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[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 138

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, err;
  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));
  err = netlink_send(&nlmsg, sock);
  if (err) {
  }
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);
}

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();
      close_fds();
      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;
    }
  }
}

#ifndef __NR_statx
#define __NR_statx 332
#endif

uint64_t r[9] = {0x0, 0xffffffffffffffff, 0xffffffffffffffff,
                 0x0, 0xffffffffffffffff, 0xffffffffffffffff,
                 0x0, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000000, "./file0\000", 8);
  syscall(__NR_chmod, 0x20000000ul, 0x104ul);
  memcpy((void*)0x20000040, "./file0\000", 8);
  syscall(__NR_stat, 0x20000040ul, 0x20000080ul);
  memcpy((void*)0x20000100, "./file0\000", 8);
  syscall(__NR_symlink, 0x20000100ul, 0ul);
  res = syscall(__NR_getpgid, -1);
  if (res != -1)
    r[0] = res;
  syscall(__NR_ptrace, 5ul, r[0], 0ul, 0x80000001ul);
  res = syscall(__NR_socketpair, 1ul, 5ul, 0ul, 0x200001c0ul);
  if (res != -1) {
    r[1] = *(uint32_t*)0x200001c0;
    r[2] = *(uint32_t*)0x200001c4;
  }
  res = syscall(__NR_getpid);
  if (res != -1)
    r[3] = res;
  syscall(__NR_sched_getparam, r[3], 0x20000200ul);
  syscall(__NR_fcntl, r[2], 0x40dul, 0x20000240ul);
  res = syscall(__NR_socket, 1ul, 1ul, 0ul);
  if (res != -1)
    r[4] = res;
  syscall(__NR_sendmsg, r[4], 0ul, 0x80ul);
  syscall(__NR_readlink, 0ul, 0x20001900ul, 0xf9ul);
  *(uint32_t*)0x20001a00 = 1;
  *(uint32_t*)0x20001a04 = 0x1000;
  *(uint32_t*)0x20001a08 = 0x400;
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 1, 0, 1);
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 2, 1, 2);
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 1, 3, 1);
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 0, 4, 1);
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 1, 5, 1);
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 0, 6, 1);
  STORE_BY_BITMASK(uint32_t, , 0x20001a0c, 0, 7, 1);
  syscall(__NR_modify_ldt, 1ul, 0x20001a00ul, 0x10ul);
  res = syscall(__NR_dup, r[1]);
  if (res != -1)
    r[5] = res;
  syscall(__NR_statx, r[5], 0ul, 0ul, 1ul, 0x20001a80ul);
  syscall(__NR_mkdirat, r[5], 0ul, 0x1fful);
  syscall(__NR_inotify_init);
  memcpy((void*)0x20002d80, "./file0\000", 8);
  syscall(__NR_open, 0x20002d80ul, 0x402181ul, 0x124ul);
  syscall(__NR_signalfd4, r[1], 0ul, 0ul, 0x40000ul);
  syscall(__NR_pipe2, 0x20002e00ul, 0x84000ul);
  syscall(__NR_socketpair, 4ul, 0xaul, 6, 0ul);
  memcpy((void*)0x20009bc0, "/proc/thread-self\000", 18);
  syscall(__NR_openat, 0xffffffffffffff9cul, 0x20009bc0ul, 0ul, 0ul);
  syscall(__NR_sendmsg, r[5], 0ul, 0x8040ul);
  syscall(__NR_socketpair, 8ul, 3ul, 8, 0ul);
  memcpy((void*)0x20009cc0, "user\000", 5);
  res = syscall(__NR_add_key, 0x20009cc0ul, 0ul, 0x20009d40ul, 0ul, 0xfffffffa);
  if (res != -1)
    r[6] = res;
  syscall(__NR_keyctl, 0x10ul, r[6], 0, 0, 0);
  memcpy((void*)0x20009e40, "/dev/zero\000", 10);
  res =
      syscall(__NR_openat, 0xffffffffffffff9cul, 0x20009e40ul, 0x20000ul, 0ul);
  if (res != -1)
    r[7] = res;
  syscall(__NR_write, r[7], 0ul, 0ul);
  *(uint64_t*)0x2000a000 = 0x20ffc000;
  *(uint64_t*)0x2000a008 = 0x20fff000;
  *(uint64_t*)0x2000a010 = 0x20ffe000;
  *(uint64_t*)0x2000a018 = 0x20ffc000;
  *(uint64_t*)0x2000a020 = 0x20fff000;
  *(uint64_t*)0x2000a028 = 0x20ffd000;
  *(uint64_t*)0x2000a030 = 0x20ffe000;
  *(uint64_t*)0x2000a038 = 0x20ffc000;
  *(uint64_t*)0x2000a040 = 0x20feb000;
  *(uint64_t*)0x2000a048 = 0x20ff4000;
  *(uint64_t*)0x2000a050 = 0x20ff3000;
  *(uint64_t*)0x2000a058 = 0x20009f00;
  memcpy((void*)0x20009f00,
         "\xb2\xf3\x02\x78\xb0\xcb\x9c\xf2\xe0\x1b\xc8\xf5\xbb\x86\x84\xfd\xde"
         "\xff\x83\x9c\x51\x70\xa9\xd5\x8c\xda\xd2\x78\x18\x05\xfa\xb5\xa6\x6d"
         "\xe7\xce\xce\xa2\x9a\x1a\x66\x8d\x75\xca\x47\x8d\x6d\xcd\x0b\x02\xad"
         "\x89\xae\x44\x42\x07\x65\x32\x29\x86\xa3\x19\x22\x4c\x1d\xe5\xaf\x9c"
         "\xf5\x82\xc5\x2a\x93\x86\x28\xe2\x22\x5e\x9f\xab\x6f\x3c\xb8\xc2\xac"
         "\xdf\xd3\x52\x10\x15\x2c\x47\x9a\xab\x9b\x0e\x3c\x9e\x37\x95\x17\x16"
         "\x9f\x12\x0b\x7e\x07\xf8\x21\x0e\x28\x10\x29\xf4\x18\x05\x93\x03\xb6"
         "\x43\xb7\xea\x5a\xab\xea\x99\x8c\x99\x9f\x0a\xc6\xf7\xec\xba\xf6\xcc"
         "\xc4\x98\x88\xd4\x2c\xd8\x29\x5c\x18\xe9\x6d\xd4\xe1\xa4\xe2\x9d\xc2"
         "\x8e\xa6\xb4\x2f\xa3\x24\x3a\xf5\x55\x3b\x55\x11\x71\xf8\xc2\xa6\xdc"
         "\xac\x5d\xf1\x25\x65\x0f\x0d\xff\x0e\x61\xc0\x2b\x43\x22\xf8\x8b\xba"
         "\x0d\x65\xdb\xd0\x12\x6a\x9d\xa1\xb8\x80\xba\xe3\xea\x77\x42\x11\xd9"
         "\x70\x67\xb6\x34\x88\xdb\x01\x03\x27\x0f\xc9",
         215);
  *(uint32_t*)0x2000a060 = 0xd7;
  *(uint32_t*)0x2000a064 = r[2];
  syscall(__NR_prctl, 0x23ul, 0xeul, 0x2000a000ul, 0x68ul);
  res = syscall(__NR_openat, -1, 0ul, 0x240000ul, 0x3eul);
  if (res != -1)
    r[8] = res;
  *(uint32_t*)0x2000a0c0 = 0x30;
  *(uint8_t*)0x2000a0c4 = 0x37;
  *(uint16_t*)0x2000a0c5 = 2;
  *(uint8_t*)0x2000a0c7 = 1;
  *(uint64_t*)0x2000a0c8 = 5;
  *(uint64_t*)0x2000a0d0 = 0x239;
  *(uint32_t*)0x2000a0d8 = r[3];
  *(uint16_t*)0x2000a0dc = 0x12;
  memcpy((void*)0x2000a0de, "/proc/thread-self\000", 18);
  syscall(__NR_write, r[8], 0x2000a0c0ul, 0x30ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}