// https://syzkaller.appspot.com/bug?id=0b210638616bb68109e9642158d4c0072770ae1c
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_sendmsg
#define __NR_sendmsg 211
#endif
#ifndef __NR_setns
#define __NR_setns 268
#endif
#ifndef __NR_socket
#define __NR_socket 198
#endif

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;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int 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 execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; 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 (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  setns arguments: [
  //    fd: fd_namespace (resource)
  //    type: ns_type = 0x0 (8 bytes)
  //  ]
  syscall(__NR_setns, /*fd=*/0xc9, /*type=*/0ul);
  //  socket$nl_netfilter arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0xc (4 bytes)
  //  ]
  //  returns sock_nl_netfilter
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0xc);
  if (res != -1)
    r[0] = res;
  //  sendmsg$NFT_BATCH arguments: [
  //    fd: sock_nl_netfilter (resource)
  //    msg: ptr[in, msghdr_netlink[nft_batch_msg]] {
  //      msghdr_netlink[nft_batch_msg] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, nft_batch_msg]] {
  //          iovec[in, nft_batch_msg] {
  //            addr: ptr[in, nft_batch_msg] {
  //              nft_batch_msg {
  //                begin: nft_nlmsghdr[NFNL_MSG_BATCH_BEGIN] {
  //                  nlmsg_len: len = 0x14 (4 bytes)
  //                  nlmsg_type: const = 0x10 (2 bytes)
  //                  nlmsg_flags: const = 0x1 (2 bytes)
  //                  nlmsg_seq: const = 0x0 (4 bytes)
  //                  nlmsg_pid: const = 0x0 (4 bytes)
  //                  hdr: nfgenmsg_nft {
  //                    nfgen_family: families = 0x1 (1 bytes)
  //                    version: const = 0x0 (1 bytes)
  //                    res_id: const = 0xa (2 bytes)
  //                  }
  //                }
  //                msgs: array[nft_batch_message] {
  //                  union nft_batch_message {
  //                    NFT_MSG_NEWTABLE:
  //                    netlink_msg_netfilter_tt[NFNL_SUBSYS_NFTABLES,
  //                    NFT_MSG_NEWTABLE, array[nft_table_policy]] {
  //                      len: len = 0x20 (4 bytes)
  //                      type: const = 0x0 (1 bytes)
  //                      subsys: const = 0xa (1 bytes)
  //                      flags: netlink_netfilter_msg_flags = 0x401 (2 bytes)
  //                      seq: const = 0x0 (4 bytes)
  //                      pid: const = 0x0 (4 bytes)
  //                      hdr: nfgenmsg {
  //                        nfgen_family: nfproto = 0x1 (1 bytes)
  //                        version: const = 0x0 (1 bytes)
  //                        res_id: int16be = 0x0 (2 bytes)
  //                      }
  //                      attrs: array[nft_table_policy] {
  //                        union nft_table_policy {
  //                          NFTA_TABLE_NAME: nlattr_t[const[NFTA_TABLE_NAME,
  //                          int16], string[nft_table_name]] {
  //                            nla_len: offsetof = 0x9 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {73 79 7a 30 00} (length 0x5)
  //                            size: buffer: {} (length 0x0)
  //                            pad = 0x0 (3 bytes)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                  union nft_batch_message {
  //                    NFT_MSG_NEWCHAIN:
  //                    netlink_msg_netfilter_tt[NFNL_SUBSYS_NFTABLES,
  //                    NFT_MSG_NEWCHAIN, array[nft_chain_policy]] {
  //                      len: len = 0x48 (4 bytes)
  //                      type: const = 0x3 (1 bytes)
  //                      subsys: const = 0xa (1 bytes)
  //                      flags: netlink_netfilter_msg_flags = 0x401 (2 bytes)
  //                      seq: const = 0x0 (4 bytes)
  //                      pid: const = 0x0 (4 bytes)
  //                      hdr: nfgenmsg {
  //                        nfgen_family: nfproto = 0x1 (1 bytes)
  //                        version: const = 0x0 (1 bytes)
  //                        res_id: int16be = 0x0 (2 bytes)
  //                      }
  //                      attrs: array[nft_chain_policy] {
  //                        union nft_chain_policy {
  //                          NFTA_CHAIN_TABLE: nlattr_t[const[NFTA_CHAIN_TABLE,
  //                          int16], string[nft_table_name]] {
  //                            nla_len: offsetof = 0x9 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {73 79 7a 30 00} (length 0x5)
  //                            size: buffer: {} (length 0x0)
  //                            pad = 0x0 (3 bytes)
  //                          }
  //                        }
  //                        union nft_chain_policy {
  //                          NFTA_CHAIN_NAME: nlattr_t[const[NFTA_CHAIN_NAME,
  //                          int16], string[nft_chain_name]] {
  //                            nla_len: offsetof = 0x9 (2 bytes)
  //                            nla_type: const = 0x3 (2 bytes)
  //                            payload: buffer: {73 79 7a 31 00} (length 0x5)
  //                            size: buffer: {} (length 0x0)
  //                            pad = 0x0 (3 bytes)
  //                          }
  //                        }
  //                        union nft_chain_policy {
  //                          NFTA_CHAIN_HOOK: nlattr_tt[const[NFTA_CHAIN_HOOK,
  //                          int16:14], 0, 1, array[nft_hook_policy]] {
  //                            nla_len: offsetof = 0x14 (2 bytes)
  //                            nla_type: const = 0x4 (1 bytes)
  //                            NLA_F_NET_BYTEORDER: const = 0x0 (0 bytes)
  //                            NLA_F_NESTED: const = 0x1 (1 bytes)
  //                            payload: array[nft_hook_policy] {
  //                              union nft_hook_policy {
  //                                NFTA_HOOK_HOOKNUM:
  //                                nlattr_tt[const[NFTA_HOOK_HOOKNUM,
  //                                int16:14], 1, 0, flags[nf_inet_hooks,
  //                                int32be]] {
  //                                  nla_len: offsetof = 0x8 (2 bytes)
  //                                  nla_type: const = 0x1 (1 bytes)
  //                                  NLA_F_NET_BYTEORDER: const = 0x1 (0 bytes)
  //                                  NLA_F_NESTED: const = 0x0 (1 bytes)
  //                                  payload: nf_inet_hooks = 0x4 (4 bytes)
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                              union nft_hook_policy {
  //                                NFTA_HOOK_PRIORITY:
  //                                nlattr_tt[const[NFTA_HOOK_PRIORITY,
  //                                int16:14], 1, 0,
  //                                int32be[NF_IP_PRI_CONNTRACK:NF_IP_PRI_LAST]]
  //                                {
  //                                  nla_len: offsetof = 0x8 (2 bytes)
  //                                  nla_type: const = 0x2 (1 bytes)
  //                                  NLA_F_NET_BYTEORDER: const = 0x1 (0 bytes)
  //                                  NLA_F_NESTED: const = 0x0 (1 bytes)
  //                                  payload: int32be = 0x64 (4 bytes)
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                        union nft_chain_policy {
  //                          NFTA_CHAIN_TYPE: nlattr_t[const[NFTA_CHAIN_TYPE,
  //                          int16], string[nft_chain_type]] {
  //                            nla_len: offsetof = 0x8 (2 bytes)
  //                            nla_type: const = 0x7 (2 bytes)
  //                            payload: buffer: {6e 61 74 00} (length 0x4)
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                  union nft_batch_message {
  //                    NFT_MSG_NEWRULE:
  //                    netlink_msg_netfilter_tt[NFNL_SUBSYS_NFTABLES,
  //                    NFT_MSG_NEWRULE, array[nft_rule_policy]] {
  //                      len: len = 0x4c (4 bytes)
  //                      type: const = 0x6 (1 bytes)
  //                      subsys: const = 0xa (1 bytes)
  //                      flags: netlink_netfilter_msg_flags = 0x401 (2 bytes)
  //                      seq: const = 0x0 (4 bytes)
  //                      pid: const = 0x0 (4 bytes)
  //                      hdr: nfgenmsg {
  //                        nfgen_family: nfproto = 0x1 (1 bytes)
  //                        version: const = 0x0 (1 bytes)
  //                        res_id: int16be = 0x0 (2 bytes)
  //                      }
  //                      attrs: array[nft_rule_policy] {
  //                        union nft_rule_policy {
  //                          NFTA_RULE_TABLE: nlattr_t[const[NFTA_RULE_TABLE,
  //                          int16], string[nft_table_name]] {
  //                            nla_len: offsetof = 0x9 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {73 79 7a 30 00} (length 0x5)
  //                            size: buffer: {} (length 0x0)
  //                            pad = 0x0 (3 bytes)
  //                          }
  //                        }
  //                        union nft_rule_policy {
  //                          NFTA_RULE_CHAIN: nlattr_t[const[NFTA_RULE_CHAIN,
  //                          int16], string[nft_chain_name]] {
  //                            nla_len: offsetof = 0x9 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: buffer: {73 79 7a 31 00} (length 0x5)
  //                            size: buffer: {} (length 0x0)
  //                            pad = 0x0 (3 bytes)
  //                          }
  //                        }
  //                        union nft_rule_policy {
  //                          NFTA_RULE_EXPRESSIONS:
  //                          nlattr_tt[const[NFTA_RULE_EXPRESSIONS, int16:14],
  //                          0, 1, array[nlnest[NFTA_LIST_ELEM,
  //                          nft_expr_policy]]] {
  //                            nla_len: offsetof = 0x20 (2 bytes)
  //                            nla_type: const = 0x4 (1 bytes)
  //                            NLA_F_NET_BYTEORDER: const = 0x0 (0 bytes)
  //                            NLA_F_NESTED: const = 0x1 (1 bytes)
  //                            payload: array[nlattr_tt[const[NFTA_LIST_ELEM,
  //                            int16:14], 0, 1, nft_expr_policy]] {
  //                              nlattr_tt[const[NFTA_LIST_ELEM, int16:14], 0,
  //                              1, nft_expr_policy] {
  //                                nla_len: offsetof = 0x1c (2 bytes)
  //                                nla_type: const = 0x1 (1 bytes)
  //                                NLA_F_NET_BYTEORDER: const = 0x0 (0 bytes)
  //                                NLA_F_NESTED: const = 0x1 (1 bytes)
  //                                payload: union nft_expr_policy {
  //                                  masq: nft_expr_policy_t["masq",
  //                                  nft_masq_policy] {
  //                                    NFTA_EXPR_NAME:
  //                                    nlattr_t[const[NFTA_EXPR_NAME, int16],
  //                                    string["masq"]] {
  //                                      nla_len: offsetof = 0x9 (2 bytes)
  //                                      nla_type: const = 0x1 (2 bytes)
  //                                      payload: buffer: {6d 61 73 71 00}
  //                                      (length 0x5) size: buffer: {} (length
  //                                      0x0) pad = 0x0 (3 bytes)
  //                                    }
  //                                    NFTA_EXPR_DATA: union
  //                                    optional[nlnest[NFTA_EXPR_DATA,
  //                                    array[nft_masq_policy]]] {
  //                                      val: nlattr_tt[const[NFTA_EXPR_DATA,
  //                                      int16:14], 0, 1,
  //                                      array[nft_masq_policy]] {
  //                                        nla_len: offsetof = 0xc (2 bytes)
  //                                        nla_type: const = 0x2 (1 bytes)
  //                                        NLA_F_NET_BYTEORDER: const = 0x0 (0
  //                                        bytes) NLA_F_NESTED: const = 0x1 (1
  //                                        bytes) payload:
  //                                        array[nft_masq_policy] {
  //                                          union nft_masq_policy {
  //                                            NFTA_MASQ_FLAGS:
  //                                            nlattr_tt[const[NFTA_MASQ_FLAGS,
  //                                            int16:14], 1, 0,
  //                                            flags[nft_nat_flags, int32be]] {
  //                                              nla_len: offsetof = 0x8 (2
  //                                              bytes) nla_type: const = 0x1
  //                                              (1 bytes) NLA_F_NET_BYTEORDER:
  //                                              const = 0x1 (0 bytes)
  //                                              NLA_F_NESTED: const = 0x0 (1
  //                                              bytes) payload: nft_nat_flags
  //                                              = 0x12 (4 bytes) size: buffer:
  //                                              {} (length 0x0)
  //                                            }
  //                                          }
  //                                        }
  //                                        size: buffer: {} (length 0x0)
  //                                      }
  //                                    }
  //                                  }
  //                                }
  //                                size: buffer: {} (length 0x0)
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //                end: nft_nlmsghdr[NFNL_MSG_BATCH_END] {
  //                  nlmsg_len: len = 0x14 (4 bytes)
  //                  nlmsg_type: const = 0x11 (2 bytes)
  //                  nlmsg_flags: const = 0x1 (2 bytes)
  //                  nlmsg_seq: const = 0x0 (4 bytes)
  //                  nlmsg_pid: const = 0x0 (4 bytes)
  //                  hdr: nfgenmsg_nft {
  //                    nfgen_family: families = 0x1 (1 bytes)
  //                    version: const = 0x0 (1 bytes)
  //                    res_id: const = 0xa (2 bytes)
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0xdc (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x8040 (8 bytes)
  //  ]
  *(uint64_t*)0x20000240 = 0;
  *(uint32_t*)0x20000248 = 0;
  *(uint64_t*)0x20000250 = 0x20000280;
  *(uint64_t*)0x20000280 = 0x20000000;
  *(uint32_t*)0x20000000 = 0x14;
  *(uint16_t*)0x20000004 = 0x10;
  *(uint16_t*)0x20000006 = 1;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint8_t*)0x20000010 = 1;
  *(uint8_t*)0x20000011 = 0;
  *(uint16_t*)0x20000012 = htobe16(0xa);
  *(uint32_t*)0x20000014 = 0x20;
  *(uint8_t*)0x20000018 = 0;
  *(uint8_t*)0x20000019 = 0xa;
  *(uint16_t*)0x2000001a = 0x401;
  *(uint32_t*)0x2000001c = 0;
  *(uint32_t*)0x20000020 = 0;
  *(uint8_t*)0x20000024 = 1;
  *(uint8_t*)0x20000025 = 0;
  *(uint16_t*)0x20000026 = htobe16(0);
  *(uint16_t*)0x20000028 = 9;
  *(uint16_t*)0x2000002a = 1;
  memcpy((void*)0x2000002c, "syz0\000", 5);
  *(uint32_t*)0x20000034 = 0x48;
  *(uint8_t*)0x20000038 = 3;
  *(uint8_t*)0x20000039 = 0xa;
  *(uint16_t*)0x2000003a = 0x401;
  *(uint32_t*)0x2000003c = 0;
  *(uint32_t*)0x20000040 = 0;
  *(uint8_t*)0x20000044 = 1;
  *(uint8_t*)0x20000045 = 0;
  *(uint16_t*)0x20000046 = htobe16(0);
  *(uint16_t*)0x20000048 = 9;
  *(uint16_t*)0x2000004a = 1;
  memcpy((void*)0x2000004c, "syz0\000", 5);
  *(uint16_t*)0x20000054 = 9;
  *(uint16_t*)0x20000056 = 3;
  memcpy((void*)0x20000058, "syz1\000", 5);
  *(uint16_t*)0x20000060 = 0x14;
  STORE_BY_BITMASK(uint16_t, , 0x20000062, 4, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000063, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000063, 1, 7, 1);
  *(uint16_t*)0x20000064 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20000066, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000067, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000067, 0, 7, 1);
  *(uint32_t*)0x20000068 = htobe32(4);
  *(uint16_t*)0x2000006c = 8;
  STORE_BY_BITMASK(uint16_t, , 0x2000006e, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000006f, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000006f, 0, 7, 1);
  *(uint32_t*)0x20000070 = htobe32(0x64);
  *(uint16_t*)0x20000074 = 8;
  *(uint16_t*)0x20000076 = 7;
  memcpy((void*)0x20000078, "nat\000", 4);
  *(uint32_t*)0x2000007c = 0x4c;
  *(uint8_t*)0x20000080 = 6;
  *(uint8_t*)0x20000081 = 0xa;
  *(uint16_t*)0x20000082 = 0x401;
  *(uint32_t*)0x20000084 = 0;
  *(uint32_t*)0x20000088 = 0;
  *(uint8_t*)0x2000008c = 1;
  *(uint8_t*)0x2000008d = 0;
  *(uint16_t*)0x2000008e = htobe16(0);
  *(uint16_t*)0x20000090 = 9;
  *(uint16_t*)0x20000092 = 1;
  memcpy((void*)0x20000094, "syz0\000", 5);
  *(uint16_t*)0x2000009c = 9;
  *(uint16_t*)0x2000009e = 2;
  memcpy((void*)0x200000a0, "syz1\000", 5);
  *(uint16_t*)0x200000a8 = 0x20;
  STORE_BY_BITMASK(uint16_t, , 0x200000aa, 4, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000ab, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000ab, 1, 7, 1);
  *(uint16_t*)0x200000ac = 0x1c;
  STORE_BY_BITMASK(uint16_t, , 0x200000ae, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000af, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000af, 1, 7, 1);
  *(uint16_t*)0x200000b0 = 9;
  *(uint16_t*)0x200000b2 = 1;
  memcpy((void*)0x200000b4, "masq\000", 5);
  *(uint16_t*)0x200000bc = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200000be, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000bf, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000bf, 1, 7, 1);
  *(uint16_t*)0x200000c0 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x200000c2, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200000c3, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200000c3, 0, 7, 1);
  *(uint32_t*)0x200000c4 = htobe32(0x12);
  *(uint32_t*)0x200000c8 = 0x14;
  *(uint16_t*)0x200000cc = 0x11;
  *(uint16_t*)0x200000ce = 1;
  *(uint32_t*)0x200000d0 = 0;
  *(uint32_t*)0x200000d4 = 0;
  *(uint8_t*)0x200000d8 = 1;
  *(uint8_t*)0x200000d9 = 0;
  *(uint16_t*)0x200000da = htobe16(0xa);
  *(uint64_t*)0x20000288 = 0xdc;
  *(uint64_t*)0x20000258 = 1;
  *(uint64_t*)0x20000260 = 0;
  *(uint64_t*)0x20000268 = 0;
  *(uint32_t*)0x20000270 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x20000240ul,
          /*f=MSG_MORE|MSG_DONTWAIT*/ 0x8040ul);
}
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;
  loop();
  return 0;
}