r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl802154(&(0x7f0000000540), 0xffffffffffffffff)
sendmsg$NL802154_CMD_SET_BACKOFF_EXPONENT(r0, &(0x7f00000008c0)={0x0, 0x0, &(0x7f0000000880)={&(0x7f0000000840)={0x20, r1, 0xbdf2d8767bff44a1, 0x0, 0x0, {}, [@NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}]}, 0x20}}, 0x0)