// https://syzkaller.appspot.com/bug?id=36e6e6feb60a375de14bd44045a55a71d6740eae
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <net/if.h>
#include <netinet/in.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.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>

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[4096];
};

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;
  if (size > 0)
    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, bool dofail)
{
  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;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  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, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* 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) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static long syz_genetlink_get_family_id(volatile long name,
                                        volatile long sock_arg)
{
  int fd = sock_arg;
  if (fd < 0) {
    fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
    if (fd == -1) {
      return -1;
    }
  }
  struct nlmsg nlmsg_tmp;
  int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false);
  if ((int)sock_arg < 0)
    close(fd);
  if (ret < 0) {
    return -1;
  }
  return ret;
}

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

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*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=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  socket$nl_generic arguments: [
  //    domain: const = 0x10 (8 bytes)
  //    type: const = 0x3 (8 bytes)
  //    proto: const = 0x10 (4 bytes)
  //  ]
  //  returns sock_nl_generic
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[0] = res;
  //  socket$unix arguments: [
  //    domain: const = 0x1 (8 bytes)
  //    type: unix_socket_type = 0x2 (8 bytes)
  //    proto: const = 0x0 (4 bytes)
  //  ]
  //  returns sock_unix
  res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_DGRAM*/ 2ul,
                /*proto=*/0);
  if (res != -1)
    r[1] = res;
  //  syz_genetlink_get_family_id$nl80211 arguments: [
  //    name: ptr[in, buffer] {
  //      buffer: {6e 6c 38 30 32 31 31 00} (length 0x8)
  //    }
  //    fd: sock_nl_generic (resource)
  //  ]
  //  returns nl80211_family_id
  memcpy((void*)0x2000000000c0, "nl80211\000", 8);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x2000000000c0, /*fd=*/-1);
  if (res != -1)
    r[2] = res;
  //  ioctl$sock_SIOCGIFINDEX_80211 arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8933 (4 bytes)
  //    arg: ptr[out, ifreq_dev_t[nl80211_devnames, nl80211_ifindex]] {
  //      ifreq_dev_t[nl80211_devnames, nl80211_ifindex] {
  //        ifr_ifrn: buffer: {77 6c 61 6e 31 00 00 00 00 00 00 00 00 00 00 00}
  //        (length 0x10) elem: nl80211_ifindex (resource) pad = 0x0 (20 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x200000000100,
         "wlan1\000\000\000\000\000\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933,
                /*arg=*/0x200000000100ul);
  if (res != -1)
    r[3] = *(uint32_t*)0x200000000110;
  //  sendmsg$NL80211_CMD_NEW_INTERFACE arguments: [
  //    fd: sock_nl_generic (resource)
  //    msg: ptr[in, msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //    msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE, nl80211_rdev_payload],
  //    nl80211_policy$new_interface]]] {
  //      msghdr_netlink[netlink_msg_t[nl80211_family_id,
  //      msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE, nl80211_rdev_payload],
  //      nl80211_policy$new_interface]] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: ptr[in, iovec[in, netlink_msg_t[nl80211_family_id,
  //        msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE,
  //        nl80211_rdev_payload], nl80211_policy$new_interface]]] {
  //          iovec[in, netlink_msg_t[nl80211_family_id,
  //          msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE,
  //          nl80211_rdev_payload], nl80211_policy$new_interface]] {
  //            addr: ptr[in, netlink_msg_t[nl80211_family_id,
  //            msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE,
  //            nl80211_rdev_payload], nl80211_policy$new_interface]] {
  //              netlink_msg_t[nl80211_family_id,
  //              msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE,
  //              nl80211_rdev_payload], nl80211_policy$new_interface] {
  //                len: len = 0x44 (4 bytes)
  //                type: nl80211_family_id (resource)
  //                flags: netlink_msg_flags = 0x1 (2 bytes)
  //                seq: int32 = 0x70bd28 (4 bytes)
  //                pid: int32 = 0x25dfdbfd (4 bytes)
  //                payload: msg_nl80211_payload[NL80211_CMD_NEW_INTERFACE,
  //                nl80211_rdev_payload] {
  //                  genl_hdr: genlmsghdr_t[NL80211_CMD_NEW_INTERFACE] {
  //                    cmd: const = 0x7 (1 bytes)
  //                    version: const = 0x0 (1 bytes)
  //                    reserved: const = 0x0 (2 bytes)
  //                  }
  //                  payload: nl80211_rdev_payload {
  //                    NL80211_ATTR_WIPHY: union
  //                    optional[nlattr[NL80211_ATTR_WIPHY, nl80211_wiphy]] {
  //                      void: buffer: {} (length 0x0)
  //                    }
  //                    NL80211_ATTR_IFINDEX: union
  //                    optional[nlattr[NL80211_ATTR_IFINDEX, nl80211_ifindex]]
  //                    {
  //                      val: nlattr_t[const[NL80211_ATTR_IFINDEX, int16],
  //                      nl80211_ifindex] {
  //                        nla_len: offsetof = 0x8 (2 bytes)
  //                        nla_type: const = 0x3 (2 bytes)
  //                        payload: nl80211_ifindex (resource)
  //                        size: buffer: {} (length 0x0)
  //                      }
  //                    }
  //                    NL80211_ATTR_WDEV: union
  //                    optional[nlattr[NL80211_ATTR_WDEV, nl80211_wdev]] {
  //                      val: nlattr_t[const[NL80211_ATTR_WDEV, int16],
  //                      nl80211_wdev] {
  //                        nla_len: offsetof = 0xc (2 bytes)
  //                        nla_type: const = 0x99 (2 bytes)
  //                        payload: nl80211_wdev {
  //                          wdev_id: int32 = 0x7ff (4 bytes)
  //                          wiphy: int32 = 0x70 (4 bytes)
  //                        }
  //                        size: buffer: {} (length 0x0)
  //                      }
  //                    }
  //                  }
  //                }
  //                attrs: array[nl80211_policy$new_interface] {
  //                  union nl80211_policy$new_interface {
  //                    NL80211_ATTR_IFNAME: nlattr_t[const[NL80211_ATTR_IFNAME,
  //                    int16], devname] {
  //                      nla_len: offsetof = 0x14 (2 bytes)
  //                      nla_type: const = 0x4 (2 bytes)
  //                      payload: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00
  //                      00 00 00 00} (length 0x10) size: buffer: {} (length
  //                      0x0)
  //                    }
  //                  }
  //                  union nl80211_policy$new_interface {
  //                    NL80211_ATTR_IFTYPE: nlattr_t[const[NL80211_ATTR_IFTYPE,
  //                    int16], flags[nl80211_iftype, int32]] {
  //                      nla_len: offsetof = 0x8 (2 bytes)
  //                      nla_type: const = 0x5 (2 bytes)
  //                      payload: nl80211_iftype = 0x6 (4 bytes)
  //                      size: buffer: {} (length 0x0)
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x44 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x81 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x24044884 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000300 = 0;
  *(uint32_t*)0x200000000308 = 0;
  *(uint64_t*)0x200000000310 = 0x200000000040;
  *(uint64_t*)0x200000000040 = 0x200000000240;
  *(uint32_t*)0x200000000240 = 0x44;
  *(uint16_t*)0x200000000244 = r[2];
  *(uint16_t*)0x200000000246 = 1;
  *(uint32_t*)0x200000000248 = 0x70bd28;
  *(uint32_t*)0x20000000024c = 0x25dfdbfd;
  *(uint8_t*)0x200000000250 = 7;
  *(uint8_t*)0x200000000251 = 0;
  *(uint16_t*)0x200000000252 = 0;
  *(uint16_t*)0x200000000254 = 8;
  *(uint16_t*)0x200000000256 = 3;
  *(uint32_t*)0x200000000258 = r[3];
  *(uint16_t*)0x20000000025c = 0xc;
  *(uint16_t*)0x20000000025e = 0x99;
  *(uint32_t*)0x200000000260 = 0x7ff;
  *(uint32_t*)0x200000000264 = 0x70;
  *(uint16_t*)0x200000000268 = 0x14;
  *(uint16_t*)0x20000000026a = 4;
  memcpy((void*)0x20000000026c, "syzkaller0\000\000\000\000\000\000", 16);
  *(uint16_t*)0x20000000027c = 8;
  *(uint16_t*)0x20000000027e = 5;
  *(uint32_t*)0x200000000280 = 6;
  *(uint64_t*)0x200000000048 = 0x44;
  *(uint64_t*)0x200000000318 = 1;
  *(uint64_t*)0x200000000320 = 0;
  *(uint64_t*)0x200000000328 = 0;
  *(uint32_t*)0x200000000330 = 0x81;
  syscall(
      __NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000000300ul,
      /*f=MSG_ZEROCOPY|MSG_FASTOPEN|MSG_BATCH|MSG_NOSIGNAL|MSG_EOR|MSG_DONTROUTE|MSG_CONFIRM*/
      0x24044884ul);
  //  openat$tun arguments: [
  //    fd: const = 0xffffffffffffff9c (8 bytes)
  //    file: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 6e 65 74 2f 74 75 6e 00} (length 0xd)
  //    }
  //    flags: open_flags = 0x0 (4 bytes)
  //    mode: const = 0x0 (2 bytes)
  //  ]
  //  returns fd_tun
  memcpy((void*)0x200000000400, "/dev/net/tun\000", 13);
  res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                /*file=*/0x200000000400ul, /*flags=*/0, /*mode=*/0);
  if (res != -1)
    r[4] = res;
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/r[4]);
  //  socket$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[5] = res;
  //  ioctl$sock_SIOCGIFINDEX arguments: [
  //    fd: sock (resource)
  //    cmd: const = 0x8933 (4 bytes)
  //    arg: ptr[out, ifreq_dev_t[devnames, ifindex]] {
  //      ifreq_dev_t[devnames, ifindex] {
  //        ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00}
  //        (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x200000000100, "syzkaller0\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[5], /*cmd=*/0x8933,
                /*arg=*/0x200000000100ul);
  if (res != -1)
    r[6] = *(uint32_t*)0x200000000110;
  //  sendmsg$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 = 0x48 (4 bytes)
  //                  type: const = 0x24 (2 bytes)
  //                  flags: netlink_msg_flags = 0x4ee4e6a52ff56541 (2 bytes)
  //                  seq: int32 = 0x1 (4 bytes)
  //                  pid: int32 = 0x25dfdbfd (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 = 0xfff2 (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_fq_codel: tca_kind_options_t["fq_codel",
  //                        array[fq_codel_policy]] {
  //                          TCA_KIND: nlattr_t[const[TCA_KIND, int16],
  //                          string["fq_codel"]] {
  //                            nla_len: offsetof = 0xd (2 bytes)
  //                            nla_type: const = 0x1 (2 bytes)
  //                            payload: buffer: {66 71 5f 63 6f 64 65 6c 00}
  //                            (length 0x9) size: buffer: {} (length 0x0) pad =
  //                            0x0 (3 bytes)
  //                          }
  //                          TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16],
  //                          array[fq_codel_policy]] {
  //                            nla_len: offsetof = 0x14 (2 bytes)
  //                            nla_type: const = 0x2 (2 bytes)
  //                            payload: array[fq_codel_policy] {
  //                              union fq_codel_policy {
  //                                TCA_FQ_CODEL_LIMIT:
  //                                nlattr_t[const[TCA_FQ_CODEL_LIMIT, int16],
  //                                int32] {
  //                                  nla_len: offsetof = 0x8 (2 bytes)
  //                                  nla_type: const = 0x2 (2 bytes)
  //                                  payload: int32 = 0x0 (4 bytes)
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                              union fq_codel_policy {
  //                                TCA_FQ_CODEL_FLOWS:
  //                                nlattr_t[const[TCA_FQ_CODEL_FLOWS, int16],
  //                                int32] {
  //                                  nla_len: offsetof = 0x8 (2 bytes)
  //                                  nla_type: const = 0x5 (2 bytes)
  //                                  payload: int32 = 0x7 (4 bytes)
  //                                  size: buffer: {} (length 0x0)
  //                                }
  //                              }
  //                            }
  //                            size: buffer: {} (length 0x0)
  //                          }
  //                        }
  //                      }
  //                    }
  //                  }
  //                }
  //              }
  //            }
  //            len: len = 0x48 (8 bytes)
  //          }
  //        }
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x40088c1 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000000 = 0;
  *(uint32_t*)0x200000000008 = 0;
  *(uint64_t*)0x200000000010 = 0x200000000580;
  *(uint64_t*)0x200000000580 = 0x200000000180;
  *(uint32_t*)0x200000000180 = 0x48;
  *(uint16_t*)0x200000000184 = 0x24;
  *(uint16_t*)0x200000000186 = 0x6541;
  *(uint32_t*)0x200000000188 = 1;
  *(uint32_t*)0x20000000018c = 0x25dfdbfd;
  *(uint8_t*)0x200000000190 = 0;
  *(uint8_t*)0x200000000191 = 0;
  *(uint16_t*)0x200000000192 = 0;
  *(uint32_t*)0x200000000194 = r[6];
  *(uint16_t*)0x200000000198 = 0;
  *(uint16_t*)0x20000000019a = 6;
  *(uint16_t*)0x20000000019c = -1;
  *(uint16_t*)0x20000000019e = -1;
  *(uint16_t*)0x2000000001a0 = 0xfff2;
  *(uint16_t*)0x2000000001a2 = 0;
  *(uint16_t*)0x2000000001a4 = 0xd;
  *(uint16_t*)0x2000000001a6 = 1;
  memcpy((void*)0x2000000001a8, "fq_codel\000", 9);
  *(uint16_t*)0x2000000001b4 = 0x14;
  *(uint16_t*)0x2000000001b6 = 2;
  *(uint16_t*)0x2000000001b8 = 8;
  *(uint16_t*)0x2000000001ba = 2;
  *(uint32_t*)0x2000000001bc = 0;
  *(uint16_t*)0x2000000001c0 = 8;
  *(uint16_t*)0x2000000001c2 = 5;
  *(uint32_t*)0x2000000001c4 = 7;
  *(uint64_t*)0x200000000588 = 0x48;
  *(uint64_t*)0x200000000018 = 1;
  *(uint64_t*)0x200000000020 = 0;
  *(uint64_t*)0x200000000028 = 0;
  *(uint32_t*)0x200000000030 = 0x40088c1;
  syscall(__NR_sendmsg, /*fd=*/r[5], /*msg=*/0x200000000000ul, /*f=*/0ul);
  //  ioctl$SIOCSIFHWADDR arguments: [
  //    fd: fd_tun (resource)
  //    cmd: const = 0x8914 (4 bytes)
  //    arg: ptr[in, ifreq_dev_t[devnames, mac_addr]] {
  //      ifreq_dev_t[devnames, mac_addr] {
  //        ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00}
  //        (length 0x10) elem: union mac_addr {
  //          multicast: buffer: {bb bb bb bb bb bb} (length 0x6)
  //        }
  //        pad = 0x0 (18 bytes)
  //      }
  //    }
  //  ]
  memcpy((void*)0x200000002280, "syzkaller0\000\000\000\000\000\000", 16);
  memset((void*)0x200000002290, 187, 6);
  syscall(__NR_ioctl, /*fd=*/r[4], /*cmd=*/0x8914, /*arg=*/0x200000002280ul);
  //  socket$packet arguments: [
  //    domain: const = 0x11 (8 bytes)
  //    type: packet_socket_type = 0x3 (8 bytes)
  //    proto: const = 0x300 (4 bytes)
  //  ]
  //  returns sock_packet
  res = syscall(__NR_socket, /*domain=*/0x11ul, /*type=SOCK_RAW*/ 3ul,
                /*proto=*/0x300);
  if (res != -1)
    r[7] = res;
  //  setsockopt$packet_int arguments: [
  //    fd: sock_packet (resource)
  //    level: const = 0x107 (4 bytes)
  //    optname: packet_option_types_int = 0xf (4 bytes)
  //    optval: ptr[in, int32] {
  //      int32 = 0x207 (4 bytes)
  //    }
  //    optlen: len = 0x4 (8 bytes)
  //  ]
  *(uint32_t*)0x200000000100 = 0x207;
  syscall(__NR_setsockopt, /*fd=*/r[7], /*level=*/0x107,
          /*optname=PACKET_VNET_HDR*/ 0xf, /*optval=*/0x200000000100ul,
          /*optlen=*/4ul);
  //  ioctl$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*)0x200000000040, "syzkaller0\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[7], /*cmd=*/0x8933,
                /*arg=*/0x200000000040ul);
  if (res != -1)
    r[8] = *(uint32_t*)0x200000000050;
  //  sendto$packet arguments: [
  //    fd: sock_packet (resource)
  //    buf: ptr[in, buffer] {
  //      buffer: {05 03 22 00 d3 fc 14 00 00 00 47 88 03 1c 09 10 2c 28}
  //      (length 0x12)
  //    }
  //    len: len = 0xfdef (8 bytes)
  //    f: send_flags = 0x4 (8 bytes)
  //    addr: ptr[in, sockaddr_ll] {
  //      sockaddr_ll {
  //        sll_family: const = 0x11 (2 bytes)
  //        sll_protocol: packet_protocols = 0x12 (2 bytes)
  //        sll_ifindex: ifindex (resource)
  //        sll_hatype: const = 0x1 (2 bytes)
  //        sll_pkttype: int8 = 0x0 (1 bytes)
  //        sll_halen: const = 0x6 (1 bytes)
  //        sll_addr: union mac_addr {
  //          multicast: buffer: {bb bb bb bb bb bb} (length 0x6)
  //        }
  //        pad: buffer: {00 00} (length 0x2)
  //      }
  //    }
  //    addrlen: len = 0x14 (8 bytes)
  //  ]
  memcpy((void*)0x2000000002c0,
         "\x05\x03\x22\x00\xd3\xfc\x14\x00\x00\x00\x47\x88\x03\x1c\x09\x10\x2c"
         "\x28",
         18);
  *(uint16_t*)0x200000000140 = 0x11;
  *(uint16_t*)0x200000000142 = htobe16(0x12);
  *(uint32_t*)0x200000000144 = r[8];
  *(uint16_t*)0x200000000148 = 1;
  *(uint8_t*)0x20000000014a = 0;
  *(uint8_t*)0x20000000014b = 6;
  memset((void*)0x20000000014c, 187, 6);
  memset((void*)0x200000000152, 0, 2);
  syscall(__NR_sendto, /*fd=*/r[7], /*buf=*/0x2000000002c0ul, /*len=*/0xfdeful,
          /*f=MSG_DONTROUTE*/ 4ul, /*addr=*/0x200000000140ul,
          /*addrlen=*/0x14ul);
  return 0;
}