ioctl$sock_ipv6_tunnel_SIOCCHGPRL(0xffffffffffffffff, 0x89f7, &(0x7f0000009ec0)={'ip6tnl0\x00', 0x0}) pipe2(&(0x7f0000009f80)={0xffffffffffffffff}, 0x0) syz_genetlink_get_family_id$smc(&(0x7f000000a1c0), r0)