// https://syzkaller.appspot.com/bug?id=602143707070a06d6fd52a5a5bb13936d7ec1484
// 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_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#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

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 int inject_fault(int nth)
{
  int fd;
  fd = open("/proc/thread-self/fail-nth", O_RDWR);
  if (fd == -1)
    exit(1);
  char buf[16];
  sprintf(buf, "%d", nth);
  if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf))
    exit(1);
  return fd;
}

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 const char* setup_fault()
{
  int fd = open("/proc/self/make-it-fail", O_WRONLY);
  if (fd == -1)
    return "CONFIG_FAULT_INJECTION is not enabled";
  close(fd);
  fd = open("/proc/thread-self/fail-nth", O_WRONLY);
  if (fd == -1)
    return "kernel does not have systematic fault injection support";
  close(fd);
  static struct {
    const char* file;
    const char* val;
    bool fatal;
  } files[] = {
      {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true},
      {"/sys/kernel/debug/fail_futex/ignore-private", "N", false},
      {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false},
      {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false},
      {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false},
  };
  unsigned i;
  for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].file, files[i].val)) {
      if (files[i].fatal)
        return "failed to write fault injection file";
    }
  }
  return NULL;
}

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

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  openat$tun arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 6e 65 74 2f 74 75 6e 00} (length 0xd)
  //    }
  //    flags: open_flags = 0x2 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_tun
  memcpy((void*)0x20000000, "/dev/net/tun\000", 13);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000000ul,
                /*flags=O_RDWR*/ 2, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  ioctl$TUNSETIFF arguments: [
  //    fd: fd_tun (resource)
  //    cmd: const = 0x400454ca (4 bytes)
  //    arg: ptr[in, ifreq_dev_t[devnames, flags[tun_setiff_flags, int16]]] {
  //      ifreq_dev_t[devnames, flags[tun_setiff_flags, int16]] {
  //        ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00}
  //        (length 0x10) elem: tun_setiff_flags = 0x1001 (2 bytes) pad = 0x0
  //        (22 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x20000040, "syzkaller0\000\000\000\000\000\000", 16);
  *(uint16_t*)0x20000050 = 0x1001;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x400454ca, /*arg=*/0x20000040ul);
  //  socket$nl_route arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_nl_route
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[1] = res;
  //  ioctl$sock_SIOCGIFINDEX arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8933 (4 bytes)
  //    arg: ptr[out, ifreq_dev_t[devnames, ifindex]] {
  //      ifreq_dev_t[devnames, ifindex] {
  //        ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00}
  //        (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x20000080, "syzkaller0\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933, /*arg=*/0x20000080ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x20000090;
  //  socket$inet arguments: [
  //    domain: const = 0x2 (8 bytes)
  //    type: socket_type = 0x2 (8 bytes)
  //    proto: int32 = 0x0 (4 bytes)
  //  ]
  //  returns sock_in
  res = syscall(__NR_socket, /*domain=*/2ul, /*type=SOCK_DGRAM*/ 2ul,
                /*proto=*/0);
  if (res != -1)
    r[3] = res;
  //  ioctl$sock_inet_SIOCSIFFLAGS arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8914 (4 bytes)
  //    arg: ptr[in, ifreq_dev_t[devnames, flags[ifru_flags, int16]]] {
  //      ifreq_dev_t[devnames, flags[ifru_flags, int16]] {
  //        ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00}
  //        (length 0x10) elem: ifru_flags = 0x1 (2 bytes) pad = 0x0 (22 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x200000c0, "syzkaller0\000\000\000\000\000\000", 16);
  *(uint16_t*)0x200000d0 = 1;
  syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0x8914, /*arg=*/0x200000c0ul);
  //  sendmsg$nl_route_sched arguments: [
  //    fd: sock_nl_route (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] {
  //      msghdr_netlink[netlink_msg_route_sched] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_route_sched]] {
  //          iovec[in, netlink_msg_route_sched] {
  //            addr: ptr[in, netlink_msg_route_sched] {
  //              union netlink_msg_route_sched {
  //                newqdisc: netlink_msg_t[const[RTM_NEWQDISC, int16],
  //                tcmsg[AF_UNSPEC], rtm_tca_policy] {
  //                  len: len = 0x30 (4 bytes)
  //                  type: const = 0x24 (2 bytes)
  //                  flags: netlink_msg_flags = 0x401 (2 bytes)
  //                  seq: int32 = 0x0 (4 bytes)
  //                  pid: int32 = 0x0 (4 bytes)
  //                  payload: tcmsg[AF_UNSPEC] {
  //                    family: const = 0x0 (1 bytes)
  //                    tcm__pad1: const = 0x0 (1 bytes)
  //                    tcm__pad2: const = 0x0 (2 bytes)
  //                    ifindex: ifindex (resource)
  //                    tcm_handle: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x0 (2 bytes)
  //                      major: tcm_handle_offsets = 0xffff (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xfff1 (2 bytes)
  //                      major: tcm_handle_offsets = 0xffff (2 bytes)
  //                    }
  //                    tcm_info: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x0 (2 bytes)
  //                      major: tcm_handle_offsets = 0x0 (2 bytes)
  //                    }
  //                  }
  //                  attrs: array[rtm_tca_policy] {
  //                    union rtm_tca_policy {
  //                      qdisc_kind_options: union qdisc_kind_options {
  //                        q_ingress: nlattr_t[const[TCA_KIND, int16],
  //                        string["ingress"]] {
  //                          nla_len: offsetof = 0xc (2 bytes)
  //                          nla_type: const = 0x1 (2 bytes)
  //                          payload: buffer: {69 6e 67 72 65 73 73 00} (length
  //                          0x8) size: buffer: {} (length 0x0)
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x30 (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 = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x20001000 = 0;
  *(uint32_t*)0x20001008 = 0;
  *(uint64_t*)0x20001010 = 0x20000000;
  *(uint64_t*)0x20000000 = 0x20000100;
  *(uint32_t*)0x20000100 = 0x30;
  *(uint16_t*)0x20000104 = 0x24;
  *(uint16_t*)0x20000106 = 0x401;
  *(uint32_t*)0x20000108 = 0;
  *(uint32_t*)0x2000010c = 0;
  *(uint8_t*)0x20000110 = 0;
  *(uint8_t*)0x20000111 = 0;
  *(uint16_t*)0x20000112 = 0;
  *(uint32_t*)0x20000114 = r[2];
  *(uint16_t*)0x20000118 = 0;
  *(uint16_t*)0x2000011a = -1;
  *(uint16_t*)0x2000011c = 0xfff1;
  *(uint16_t*)0x2000011e = -1;
  *(uint16_t*)0x20000120 = 0;
  *(uint16_t*)0x20000122 = 0;
  *(uint16_t*)0x20000124 = 0xc;
  *(uint16_t*)0x20000126 = 1;
  memcpy((void*)0x20000128, "ingress\000", 8);
  *(uint64_t*)0x20000008 = 0x30;
  *(uint64_t*)0x20001018 = 1;
  *(uint64_t*)0x20001020 = 0;
  *(uint64_t*)0x20001028 = 0;
  *(uint32_t*)0x20001030 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x20001000ul, /*f=*/0ul);
  //  sendmsg$nl_route_sched arguments: [
  //    fd: sock_nl_route (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] {
  //      msghdr_netlink[netlink_msg_route_sched] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_route_sched]] {
  //          iovec[in, netlink_msg_route_sched] {
  //            addr: ptr[in, netlink_msg_route_sched] {
  //              union netlink_msg_route_sched {
  //                newtfilter: netlink_msg_t[const[RTM_NEWTFILTER, int16],
  //                tcmsg[AF_UNSPEC], filter_policy] {
  //                  len: len = 0x84 (4 bytes)
  //                  type: const = 0x2c (2 bytes)
  //                  flags: netlink_msg_flags = 0x401 (2 bytes)
  //                  seq: int32 = 0x0 (4 bytes)
  //                  pid: int32 = 0x0 (4 bytes)
  //                  payload: tcmsg[AF_UNSPEC] {
  //                    family: const = 0x0 (1 bytes)
  //                    tcm__pad1: const = 0x0 (1 bytes)
  //                    tcm__pad2: const = 0x0 (2 bytes)
  //                    ifindex: ifindex (resource)
  //                    tcm_handle: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x1 (2 bytes)
  //                      major: tcm_handle_offsets = 0x0 (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xfff1 (2 bytes)
  //                      major: tcm_handle_offsets = 0xffff (2 bytes)
  //                    }
  //                    tcm_info: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x8 (2 bytes)
  //                      major: tcm_handle_offsets = 0x1 (2 bytes)
  //                    }
  //                  }
  //                  attrs: array[filter_policy] {
  //                    union filter_policy {
  //                      filter_kind_options: union filter_kind_options {
  //                        f_basic: tca_kind_options_t["basic",
  //                        array[basic_policy]] {
  //                          TCA_KIND: nlattr_t[const[TCA_KIND, int16],
  //                          string["basic"]] {
  //                            nla_len: offsetof = 0xa (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {62 61 73 69 63 00} (length
  //                            0x6) size: buffer: {} (length 0x0) pad = 0x0 (2
  //                            bytes)
  //                          }
  //                          TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16],
  //                          array[basic_policy]] {
  //                            nla_len: offsetof = 0x54 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: array[basic_policy] {
  //                              union basic_policy {
  //                                TCA_BASIC_ACT: nlattr_t[const[TCA_BASIC_ACT,
  //                                int16], array[tca_actions]] {
  //                                  nla_len: offsetof = 0x50 (2 bytes)
  //                                  nla_type: const = 0x3 (2 bytes)
  //                                  payload: array[tca_actions] {
  //                                    union tca_actions {
  //                                      m_ct:
  //                                      nlattr_tt[int16:14[0:TCA_ACT_MAX_PRIO],
  //                                      0, 0, tcf_action_policy["ct",
  //                                      ct_policy]] {
  //                                        nla_len: offsetof = 0x4c (2 bytes)
  //                                        nla_type: int16 = 0x1 (1 bytes)
  //                                        NLA_F_NET_BYTEORDER: const = 0x0 (0
  //                                        bytes) NLA_F_NESTED: const = 0x0 (1
  //                                        bytes) payload:
  //                                        tcf_action_policy["ct", ct_policy] {
  //                                          TCA_ACT_KIND:
  //                                          nlattr_t[const[TCA_ACT_KIND,
  //                                          int16], string["ct"]] {
  //                                            nla_len: offsetof = 0x7 (2
  //                                            bytes) nla_type: const = 0x1 (2
  //                                            bytes) payload: buffer: {63 74
  //                                            00} (length 0x3) size: buffer:
  //                                            {} (length 0x0) pad = 0x0 (1
  //                                            bytes)
  //                                          }
  //                                          TCA_ACT_OPTIONS:
  //                                          nlattr_tt[const[TCA_ACT_OPTIONS,
  //                                          int16:14], 0, 1, array[ct_policy]]
  //                                          {
  //                                            nla_len: offsetof = 0x24 (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[ct_policy]
  //                                            {
  //                                              union ct_policy {
  //                                                TCA_CT_PARMS:
  //                                                nlattr_t[const[TCA_CT_PARMS,
  //                                                int16], tc_gen] {
  //                                                  nla_len: offsetof = 0x18
  //                                                  (2 bytes) nla_type: const
  //                                                  = 0x1 (2 bytes) payload:
  //                                                  tc_gen {
  //                                                    index: int32 = 0x0 (4
  //                                                    bytes) capab: int32 =
  //                                                    0x0 (4 bytes) action:
  //                                                    tc_actions = 0x3 (4
  //                                                    bytes) refcnt: int32 =
  //                                                    0x0 (4 bytes) bindcnt:
  //                                                    int32 = 0x0 (4 bytes)
  //                                                  }
  //                                                  size: buffer: {} (length
  //                                                  0x0)
  //                                                }
  //                                              }
  //                                              union ct_policy {
  //                                                TCA_CT_ACTION:
  //                                                nlattr_t[const[TCA_CT_ACTION,
  //                                                int16],
  //                                                flags[tca_ct_actions,
  //                                                int16]] {
  //                                                  nla_len: offsetof = 0x6 (2
  //                                                  bytes) nla_type: const =
  //                                                  0x3 (2 bytes) payload:
  //                                                  tca_ct_actions = 0x9 (2
  //                                                  bytes) size: buffer: {}
  //                                                  (length 0x0) pad = 0x0 (2
  //                                                  bytes)
  //                                                }
  //                                              }
  //                                            }
  //                                            size: buffer: {} (length 0x0)
  //                                          }
  //                                          TCA_ACT_COOKIE:
  //                                          nlattr_t[const[TCA_ACT_COOKIE,
  //                                          int16], array[int8]] {
  //                                            nla_len: offsetof = 0x4 (2
  //                                            bytes) nla_type: const = 0x6 (2
  //                                            bytes) payload: buffer: {}
  //                                            (length 0x0) size: buffer: {}
  //                                            (length 0x0)
  //                                          }
  //                                          TCA_ACT_FLAGS:
  //                                          nlattr_t[const[TCA_ACT_FLAGS,
  //                                          int16],
  //                                          nla_bitfield32[tcf_action_policy_flags]]
  //                                          {
  //                                            nla_len: offsetof = 0xc (2
  //                                            bytes) nla_type: const = 0x7 (2
  //                                            bytes) payload:
  //                                            nla_bitfield32[tcf_action_policy_flags]
  //                                            {
  //                                              value: tcf_action_policy_flags
  //                                              = 0x0 (4 bytes) selector:
  //                                              tcf_action_policy_flags = 0x0
  //                                              (4 bytes)
  //                                            }
  //                                            size: buffer: {} (length 0x0)
  //                                          }
  //                                          TCA_ACT_HW_STATS:
  //                                          nlattr_t[const[TCA_ACT_HW_STATS,
  //                                          int16],
  //                                          nla_bitfield32[tcf_action_policy_hw_stats]]
  //                                          {
  //                                            nla_len: offsetof = 0xc (2
  //                                            bytes) nla_type: const = 0x8 (2
  //                                            bytes) payload:
  //                                            nla_bitfield32[tcf_action_policy_hw_stats]
  //                                            {
  //                                              value:
  //                                              tcf_action_policy_hw_stats =
  //                                              0x0 (4 bytes) selector:
  //                                              tcf_action_policy_hw_stats =
  //                                              0x0 (4 bytes)
  //                                            }
  //                                            size: buffer: {} (length 0x0)
  //                                          }
  //                                        }
  //                                        size: buffer: {} (length 0x0)
  //                                      }
  //                                    }
  //                                  }
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x84 (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 = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x20000180 = 0;
  *(uint32_t*)0x20000188 = 0;
  *(uint64_t*)0x20000190 = 0x20000200;
  *(uint64_t*)0x20000200 = 0x20000300;
  *(uint32_t*)0x20000300 = 0x84;
  *(uint16_t*)0x20000304 = 0x2c;
  *(uint16_t*)0x20000306 = 0x401;
  *(uint32_t*)0x20000308 = 0;
  *(uint32_t*)0x2000030c = 0;
  *(uint8_t*)0x20000310 = 0;
  *(uint8_t*)0x20000311 = 0;
  *(uint16_t*)0x20000312 = 0;
  *(uint32_t*)0x20000314 = r[2];
  *(uint16_t*)0x20000318 = 1;
  *(uint16_t*)0x2000031a = 0;
  *(uint16_t*)0x2000031c = 0xfff1;
  *(uint16_t*)0x2000031e = -1;
  *(uint16_t*)0x20000320 = 8;
  *(uint16_t*)0x20000322 = 1;
  *(uint16_t*)0x20000324 = 0xa;
  *(uint16_t*)0x20000326 = 1;
  memcpy((void*)0x20000328, "basic\000", 6);
  *(uint16_t*)0x20000330 = 0x54;
  *(uint16_t*)0x20000332 = 2;
  *(uint16_t*)0x20000334 = 0x50;
  *(uint16_t*)0x20000336 = 3;
  *(uint16_t*)0x20000338 = 0x4c;
  STORE_BY_BITMASK(uint16_t, , 0x2000033a, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000033b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000033b, 0, 7, 1);
  *(uint16_t*)0x2000033c = 7;
  *(uint16_t*)0x2000033e = 1;
  memcpy((void*)0x20000340, "ct\000", 3);
  *(uint16_t*)0x20000344 = 0x24;
  STORE_BY_BITMASK(uint16_t, , 0x20000346, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000347, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000347, 1, 7, 1);
  *(uint16_t*)0x20000348 = 0x18;
  *(uint16_t*)0x2000034a = 1;
  *(uint32_t*)0x2000034c = 0;
  *(uint32_t*)0x20000350 = 0;
  *(uint32_t*)0x20000354 = 3;
  *(uint32_t*)0x20000358 = 0;
  *(uint32_t*)0x2000035c = 0;
  *(uint16_t*)0x20000360 = 6;
  *(uint16_t*)0x20000362 = 3;
  *(uint16_t*)0x20000364 = 9;
  *(uint16_t*)0x20000368 = 4;
  *(uint16_t*)0x2000036a = 6;
  *(uint16_t*)0x2000036c = 0xc;
  *(uint16_t*)0x2000036e = 7;
  *(uint32_t*)0x20000370 = 0;
  *(uint32_t*)0x20000374 = 0;
  *(uint16_t*)0x20000378 = 0xc;
  *(uint16_t*)0x2000037a = 8;
  *(uint32_t*)0x2000037c = 0;
  *(uint32_t*)0x20000380 = 0;
  *(uint64_t*)0x20000208 = 0x84;
  *(uint64_t*)0x20000198 = 1;
  *(uint64_t*)0x200001a0 = 0;
  *(uint64_t*)0x200001a8 = 0;
  *(uint32_t*)0x200001b0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x20000180ul, /*f=*/0ul);
  //  write$tun arguments: [
  //    fd: fd_tun (resource)
  //    buf: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {45 00 00 1c 12 34 40 00 40 11 14 9b 0a 00 00 01
  //          0a 00 00 02 04 d2 16 2e 00 08} (length 0x1a)
  //        }
  //      }
  //    }
  //    count: len = 0x1c (8 bytes)
  //  ]
  memcpy((void*)0x20000500,
         "\x45\x00\x00\x1c\x12\x34\x40\x00\x40\x11\x14\x9b\x0a\x00\x00\x01\x0a"
         "\x00\x00\x02\x04\xd2\x16\x2e\x00\x08",
         26);
  inject_fault(6);
  syscall(__NR_write, /*fd=*/r[0], /*buf=*/0x20000500ul, /*count=*/0x1cul);
}
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;
  if ((reason = setup_fault()))
    printf("the reproducer may not work as expected: fault injection setup "
           "failed: %s\n",
           reason);
  loop();
  return 0;
}