// https://syzkaller.appspot.com/bug?id=594a5971743b5ded7a9fcead4b74757c270f564e
// 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/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

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 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[10] = {0xffffffffffffffff,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0x0,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0x0,
                  0xffffffffffffffff,
                  0xffffffffffffffff,
                  0x0};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  openat$tun arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 6e 65 74 2f 74 75 6e 00} (length 0xd)
  //    }
  //    flags: open_flags = 0x0 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_tun
  memcpy((void*)0x20000240, "/dev/net/tun\000", 13);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000240ul,
                /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[0] = res;
  //  ioctl$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 = 0x7101 (2 bytes) pad = 0x0
  //        (22 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x20000040, "syzkaller0\000\000\000\000\000\000", 16);
  *(uint16_t*)0x20000050 = 0x7101;
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x400454ca, /*arg=*/0x20000040ul);
  //  socket$netlink arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: netlink_proto = 0x0 (4 bytes)
  //  ]
  //  returns sock_netlink
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[1] = res;
  //  socket$unix arguments: [
  //    domain: const = 0x1 (8 bytes)
  //    type: unix_socket_type = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_unix
  res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0);
  if (res != -1)
    r[2] = res;
  //  ioctl$sock_SIOCGIFINDEX arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8933 (4 bytes)
  //    arg: ptr[out, ifreq_dev_t[devnames, ifindex]] {
  //      ifreq_dev_t[devnames, ifindex] {
  //        ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00}
  //        (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x20000100, "syzkaller0\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x8933, /*arg=*/0x20000100ul);
  if (res != -1)
    r[3] = *(uint32_t*)0x20000110;
  //  socket$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[4] = res;
  //  socket$unix arguments: [
  //    domain: const = 0x1 (8 bytes)
  //    type: unix_socket_type = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_unix
  res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0);
  if (res != -1)
    r[5] = res;
  //  ioctl$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*)0x20000100, "syzkaller0\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[5], /*cmd=*/0x8933, /*arg=*/0x20000100ul);
  if (res != -1)
    r[6] = *(uint32_t*)0x20000110;
  //  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 = 0x2c (4 bytes)
  //                  type: const = 0x24 (2 bytes)
  //                  flags: netlink_msg_flags = 0x4ee4e6a52ff56541 (2 bytes)
  //                  seq: int32 = 0x70bd26 (4 bytes)
  //                  pid: int32 = 0xffffffff (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 = 0x6 (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xffff (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_qfg: nlattr_t[const[TCA_KIND, int16],
  //                        string["qfq"]] {
  //                          nla_len: offsetof = 0x8 (2 bytes)
  //                          nla_type: const = 0x1 (2 bytes)
  //                          payload: buffer: {71 66 71 00} (length 0x4)
  //                          size: buffer: {} (length 0x0)
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x2c (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 = 0x24040084 (8 bytes)
  //  ]
  *(uint64_t*)0x200012c0 = 0;
  *(uint32_t*)0x200012c8 = 0;
  *(uint64_t*)0x200012d0 = 0x20000080;
  *(uint64_t*)0x20000080 = 0x20000280;
  *(uint32_t*)0x20000280 = 0x2c;
  *(uint16_t*)0x20000284 = 0x24;
  *(uint16_t*)0x20000286 = 0x6541;
  *(uint32_t*)0x20000288 = 0x70bd26;
  *(uint32_t*)0x2000028c = -1;
  *(uint8_t*)0x20000290 = 0;
  *(uint8_t*)0x20000291 = 0;
  *(uint16_t*)0x20000292 = 0;
  *(uint32_t*)0x20000294 = r[6];
  *(uint16_t*)0x20000298 = 0;
  *(uint16_t*)0x2000029a = 6;
  *(uint16_t*)0x2000029c = -1;
  *(uint16_t*)0x2000029e = -1;
  *(uint16_t*)0x200002a0 = 0;
  *(uint16_t*)0x200002a2 = 0;
  *(uint16_t*)0x200002a4 = 8;
  *(uint16_t*)0x200002a6 = 1;
  memcpy((void*)0x200002a8, "qfq\000", 4);
  *(uint64_t*)0x20000088 = 0x2c;
  *(uint64_t*)0x200012d8 = 1;
  *(uint64_t*)0x200012e0 = 0;
  *(uint64_t*)0x200012e8 = 0;
  *(uint32_t*)0x200012f0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[4], /*msg=*/0x200012c0ul,
          /*f=MSG_ZEROCOPY|MSG_FASTOPEN|MSG_BATCH|MSG_EOR|MSG_DONTROUTE*/
          0x24040084ul);
  //  socket$netlink arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: netlink_proto = 0x0 (4 bytes)
  //  ]
  //  returns sock_netlink
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[7] = res;
  //  socket$unix arguments: [
  //    domain: const = 0x1 (8 bytes)
  //    type: unix_socket_type = 0x1 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_unix
  res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0);
  if (res != -1)
    r[8] = res;
  //  ioctl$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*)0x20000100, "syzkaller0\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[8], /*cmd=*/0x8933, /*arg=*/0x20000100ul);
  if (res != -1)
    r[9] = *(uint32_t*)0x20000110;
  //  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 = 0x28 (2 bytes)
  //                  flags: netlink_msg_flags = 0x4ee4e6a52ff56541 (2 bytes)
  //                  seq: int32 = 0x4001 (4 bytes)
  //                  pid: int32 = 0xfffffdfc (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 = 0x0 (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xffff (2 bytes)
  //                      major: tcm_handle_offsets = 0xffff (2 bytes)
  //                    }
  //                    tcm_info: tcm_handle {
  //                      minor: tcm_handle_offsets = 0x2 (2 bytes)
  //                      major: tcm_handle_offsets = 0x1 (2 bytes)
  //                    }
  //                  }
  //                  attrs: array[rtm_tca_policy] {
  //                    union rtm_tca_policy {
  //                      qdisc_kind_options: union qdisc_kind_options {
  //                        q_hhf: tca_kind_options_t["hhf", array[hhf_policy]]
  //                        {
  //                          TCA_KIND: nlattr_t[const[TCA_KIND, int16],
  //                          string["hhf"]] {
  //                            nla_len: offsetof = 0x8 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {68 68 66 00} (length 0x4)
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                          TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16],
  //                          array[hhf_policy]] {
  //                            nla_len: offsetof = 0x4 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: array[hhf_policy] {
  //                            }
  //                            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 = 0x400dc (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x20000000 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0x20000200;
  *(uint64_t*)0x20000200 = 0x20000340;
  *(uint32_t*)0x20000340 = 0x30;
  *(uint16_t*)0x20000344 = 0x28;
  *(uint16_t*)0x20000346 = 0x6541;
  *(uint32_t*)0x20000348 = 0x4001;
  *(uint32_t*)0x2000034c = 0xfffffdfc;
  *(uint8_t*)0x20000350 = 0;
  *(uint8_t*)0x20000351 = 0;
  *(uint16_t*)0x20000352 = 0;
  *(uint32_t*)0x20000354 = r[9];
  *(uint16_t*)0x20000358 = 0;
  *(uint16_t*)0x2000035a = 0;
  *(uint16_t*)0x2000035c = -1;
  *(uint16_t*)0x2000035e = -1;
  *(uint16_t*)0x20000360 = 2;
  *(uint16_t*)0x20000362 = 1;
  *(uint16_t*)0x20000364 = 8;
  *(uint16_t*)0x20000366 = 1;
  memcpy((void*)0x20000368, "hhf\000", 4);
  *(uint16_t*)0x2000036c = 4;
  *(uint16_t*)0x2000036e = 2;
  *(uint64_t*)0x20000208 = 0x30;
  *(uint64_t*)0x20000018 = 1;
  *(uint64_t*)0x20000020 = 0;
  *(uint64_t*)0x20000028 = 0;
  *(uint32_t*)0x20000030 = 0x400dc;
  syscall(__NR_sendmsg, /*fd=*/r[7], /*msg=*/0x20000000ul, /*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 {
  //                newqdisc: netlink_msg_t[const[RTM_NEWQDISC, int16],
  //                tcmsg[AF_UNSPEC], rtm_tca_policy] {
  //                  len: len = 0x40 (4 bytes)
  //                  type: const = 0x28 (2 bytes)
  //                  flags: netlink_msg_flags = 0x4ee4e6a52ff56541 (2 bytes)
  //                  seq: int32 = 0x5001 (4 bytes)
  //                  pid: int32 = 0x25dfdbfe (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 = 0x0 (2 bytes)
  //                    }
  //                    tcm_parent: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xffff (2 bytes)
  //                      major: tcm_handle_offsets = 0xffff (2 bytes)
  //                    }
  //                    tcm_info: tcm_handle {
  //                      minor: tcm_handle_offsets = 0xe (2 bytes)
  //                      major: tcm_handle_offsets = 0x1 (2 bytes)
  //                    }
  //                  }
  //                  attrs: array[rtm_tca_policy] {
  //                    union rtm_tca_policy {
  //                      qdisc_kind_options: union qdisc_kind_options {
  //                        q_etf: tca_kind_options_t["etf", etf_policy] {
  //                          TCA_KIND: nlattr_t[const[TCA_KIND, int16],
  //                          string["etf"]] {
  //                            nla_len: offsetof = 0x8 (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {65 74 66 00} (length 0x4)
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                          TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16],
  //                          etf_policy] {
  //                            nla_len: offsetof = 0x14 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: union etf_policy {
  //                              TCA_ETF_PARMS: nlattr_t[const[TCA_ETF_PARMS,
  //                              int16], tc_etf_qopt] {
  //                                nla_len: offsetof = 0x10 (2 bytes)
  //                                nla_type: const = 0x1 (2 bytes)
  //                                payload: tc_etf_qopt {
  //                                  delta: int32 = 0x7 (4 bytes)
  //                                  clockid: tc_etf_clock_id = 0x1 (4 bytes)
  //                                  flags: tc_etf_flags = 0x0 (4 bytes)
  //                                }
  //                                size: buffer: {} (length 0x0)
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x40 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x400dc (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x4000080 (8 bytes)
  //  ]
  *(uint64_t*)0x200002c0 = 0;
  *(uint32_t*)0x200002c8 = 0;
  *(uint64_t*)0x200002d0 = 0x20000540;
  *(uint64_t*)0x20000540 = 0x200000c0;
  *(uint32_t*)0x200000c0 = 0x40;
  *(uint16_t*)0x200000c4 = 0x28;
  *(uint16_t*)0x200000c6 = 0x6541;
  *(uint32_t*)0x200000c8 = 0x5001;
  *(uint32_t*)0x200000cc = 0x25dfdbfe;
  *(uint8_t*)0x200000d0 = 0;
  *(uint8_t*)0x200000d1 = 0;
  *(uint16_t*)0x200000d2 = 0;
  *(uint32_t*)0x200000d4 = r[3];
  *(uint16_t*)0x200000d8 = 0;
  *(uint16_t*)0x200000da = 0;
  *(uint16_t*)0x200000dc = -1;
  *(uint16_t*)0x200000de = -1;
  *(uint16_t*)0x200000e0 = 0xe;
  *(uint16_t*)0x200000e2 = 1;
  *(uint16_t*)0x200000e4 = 8;
  *(uint16_t*)0x200000e6 = 1;
  memcpy((void*)0x200000e8, "etf\000", 4);
  *(uint16_t*)0x200000ec = 0x14;
  *(uint16_t*)0x200000ee = 2;
  *(uint16_t*)0x200000f0 = 0x10;
  *(uint16_t*)0x200000f2 = 1;
  *(uint32_t*)0x200000f4 = 7;
  *(uint32_t*)0x200000f8 = 1;
  *(uint32_t*)0x200000fc = 0;
  *(uint64_t*)0x20000548 = 0x40;
  *(uint64_t*)0x200002d8 = 1;
  *(uint64_t*)0x200002e0 = 0;
  *(uint64_t*)0x200002e8 = 0;
  *(uint32_t*)0x200002f0 = 0x400dc;
  inject_fault(6);
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x200002c0ul,
          /*f=MSG_ZEROCOPY|MSG_EOR*/ 0x4000080ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*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=*/0x1000ul, /*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;
}