r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000003c40), 0xffffffffffffffff)
sendmsg$ETHTOOL_MSG_CHANNELS_SET(r0, &(0x7f0000003d40)={0x0, 0x0, &(0x7f0000003d00)={&(0x7f0000003cc0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@ETHTOOL_A_CHANNELS_HEADER={0x4}]}, 0x18}}, 0x0)