lkdtm: Performing direct entry WARNING
------------[ cut here ]------------
Test Warning message asdfghjkl
WARNING: CPU: 0 PID: 3272 at /mnt/host/source/src/third_party/kernel/v4.4/drivers/misc/lkdtm.c:386 lkdtm_do_action+0x222/0x66e
Modules linked in: cmac rfcomm btusb uinput uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core snd_soc_kbl_rt5663_rt5514_max98927 bridge stp llc nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp esp6 ah6 xfrm6_mode_tunnel xfrm6_mode_transport xfrm4_mode_tunnel xfrm4_mode_transport ip6t_REJECT nf_reject_ipv6 ip6t_ipv6header snd_soc_hdac_hdmi snd_soc_dmic snd_soc_skl_ssp_clk snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_sst_match snd_hda_ext_core snd_hda_core snd_soc_rt5663 snd_soc_rt5514 snd_soc_rt5514_spi snd_soc_max98927 snd_soc_rl6231 ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_mark fuse iio_trig_sysfs cros_ec_activity cros_ec_light_prox cros_ec_sensors_ring cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf
 industrialio ip6table_filter iwlmvm r8152 zram mii iwlwifi iwl7000_mac80211 cfg80211 btrtl btbcm btintel bluetooth joydev [last unloaded: btusb]
CPU: 0 PID: 3272 Comm: bash Not tainted 4.4.189 #5
Hardware name: Google Eve/Eve, BIOS Google_Eve.9584.174.0 05/29/2018
 ffff88006d937d80 073b975c63534926 ffff88006d937cf0 ffffffffb3d86260
 073b975c63534926 ffffffffb465d1f7 0000000000000282 073b975c63534926
 ffffffffb465d1f7 ffff88006d937d30 ffffffffb3ad0a27 000000096d937d40
Call Trace:
 [<ffffffffb3d86260>] dump_stack+0x7a/0xbe
 [<ffffffffb3ad0a27>] __warn+0xb3/0xeb
 [<ffffffffb3ad0ac0>] warn_slowpath_fmt+0x61/0x7b
 [<ffffffffb3f5faa8>] lkdtm_do_action+0x222/0x66e
 [<ffffffffb3b0d03e>] ? printk+0x61/0x7b
 [<ffffffffb3f5f7a9>] direct_entry+0x100/0x128
 [<ffffffffb3cca2d4>] full_proxy_write+0x4c/0x75
 [<ffffffffb3cd0408>] SyS_write+0x207/0x3ec
 [<ffffffffb3aba4c8>] ? syscall_trace_enter_phase1+0xee/0x16e
 [<ffffffffb3ccf877>] ? filp_close+0x44/0x71
 [<ffffffffb3cddcc8>] ? __close_fd+0x9c/0xb4
 [<ffffffffb429c6e3>] entry_SYSCALL_64_fastpath+0x31/0xab
---[ end trace e607f822b03d8b73 ]---