r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
ioctl$sock_SIOCETHTOOL(r0, 0x8946, &(0x7f0000000000)={'syz_tun\x00', &(0x7f0000000080)=@ethtool_sset_info={0x37, 0x0, 0xfffffffd}})