NULL pointer deref in do_blockdev_direct_IO()

[miroR]

grsec-unoff RAP related Call Traces http://www.croatiafidelis.hr/foss/cap/cap-171117-grsec-RAP-Oops/ Will be back to tell more, ask more...

[miroR]

I believe it would be necessary to post the Call Trace here in this location. I'll try now.

Nov 17 14:26:36 gdOv kernel: [ 3456.797283] grsec: exec of /usr/lib/x86_64-linux-gnu/wireshark/extcap/ciscodump (/usr/lib/x86_64-linux-gnu/wireshark/extcap/ciscodump --extcap-config --extcap-interface cisco ) by /usr/lib/x86_64-linux-gnu/wireshark/extcap/ciscodump[tshark:27964] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/bin/tshark[tshark:27958] uid/euid:1000/1000 gid/egid:1000/1000
Nov 17 14:26:37 gdOv kernel: [ 3456.809214] grsec: chdir to /usr/lib/x86_64-linux-gnu/wireshark/extcap by /usr/bin/tshark[tshark:27965] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/bin/tshark[tshark:27958] uid/euid:1000/1000 gid/egid:1000/1000
Nov 17 14:26:37 gdOv kernel: [ 3456.809422] PAX: please report this to pageexec@freemail.hu
Nov 17 14:26:37 gdOv kernel: [ 3456.809436] BUG: unable to handle kernel NULL pointer dereference at 00000000000003e8
Nov 17 14:26:37 gdOv kernel: [ 3456.812435] IP: [<ffffffff81361cbd>] do_blockdev_direct_IO+0x2c9d/0x4fe0
Nov 17 14:26:37 gdOv kernel: [ 3456.813998] PGD 200276000 
Nov 17 14:26:37 gdOv kernel: [ 3456.814014] 
Nov 17 14:26:37 gdOv kernel: [ 3456.815581] Oops: 0000 [#1] SMP
Nov 17 14:26:37 gdOv kernel: [ 3456.817139] CPU: 0 PID: 27965 Comm: tshark Not tainted 4.9.61-unofficial+grsec171114-20 #1
Nov 17 14:26:37 gdOv kernel: [ 3456.818740] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Nov 17 14:26:37 gdOv kernel: [ 3456.820359] task: ffff8802cefdf2c0 task.stack: ffffc9000722c000
Nov 17 14:26:37 gdOv kernel: [ 3456.822002] RIP: 0010:[<ffffffff81361cbd>]  [<ffffffff81361cbd>] do_blockdev_direct_IO+0x2c9d/0x4fe0
Nov 17 14:26:37 gdOv kernel: [ 3456.823635] RSP: 0018:ffffc9000722fc48  EFLAGS: 00010246
Nov 17 14:26:37 gdOv kernel: [ 3456.825251] RAX: 0000000000000000 RBX: ffff8802e67aa540 RCX: 0000000000000000
Nov 17 14:26:37 gdOv kernel: [ 3456.826876] RDX: 0000000000000000 RSI: 00000000000003e8 RDI: 00000000ffffffff
Nov 17 14:26:37 gdOv kernel: [ 3456.828524] RBP: ffffc9000722fc98 R08: 00000000ffffffc3 R09: 0000000000000000
Nov 17 14:26:37 gdOv kernel: [ 3456.830139] R10: ffffffff814958b0 R11: 0000000000000000 R12: ffff8802d8d150c0
Nov 17 14:26:37 gdOv kernel: [ 3456.831752] R13: ffff8803207b8000 R14: 0000000000000000 R15: 0000000000000000
Nov 17 14:26:37 gdOv kernel: [ 3456.833367] FS:  000003ee36ee5ec0(0000) GS:ffff88032fc00000(0000) knlGS:0000000000000000
Nov 17 14:26:37 gdOv kernel: [ 3456.835029] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 17 14:26:37 gdOv kernel: [ 3456.836664] CR2: 00000000000003e8 CR3: 0000000002c22000 CR4: 00000000000006f0
Nov 17 14:26:37 gdOv kernel: [ 3456.838325] Stack:
Nov 17 14:26:37 gdOv kernel: [ 3456.839980]  ffffc9000722fc90 000000008128a28f 0000000000000000 0000000000000000
Nov 17 14:26:37 gdOv kernel: [ 3456.841722]  793a2e3f24dcd213 ffff8803207b8000 ffff88020e9286a8 ffff880320401400
Nov 17 14:26:37 gdOv kernel: [ 3456.843457]  ffff8803207b8000 000000000000001b ffffc9000722fce0 ffffffff812f7fb8
Nov 17 14:26:37 gdOv kernel: [ 3456.845211] Call Trace:
Nov 17 14:26:37 gdOv kernel: [ 3456.846958]  [<ffffffff812f7fb8>] prepare_binprm+0xc8/0x240
Nov 17 14:26:37 gdOv kernel: [ 3456.848669]  [<ffffffff812f8c47>] do_execveat_common.isra.53+0x677/0xd20
Nov 17 14:26:37 gdOv kernel: [ 3456.850345]  [<ffffffff812de9b8>] ? __check_object_size+0x178/0x31a
Nov 17 14:26:37 gdOv kernel: [ 3456.852008]  [<ffffffff8187318f>] ? strncpy_from_user+0x6f/0x1e0
Nov 17 14:26:37 gdOv kernel: [ 3456.853646]  [<ffffffff812ffb85>] ? getname_flags+0x85/0x260
Nov 17 14:26:37 gdOv kernel: [ 3456.855263]  [<ffffffff812f983b>] rap_sys_execve+0x6b/0xa0
Nov 17 14:26:37 gdOv kernel: [ 3456.856861]  [<ffffffff81001e2d>] do_syscall_64+0x8d/0x180
Nov 17 14:26:37 gdOv kernel: [ 3456.858481]  [<ffffffff825af54d>] entry_SYSCALL64_slow_path+0x32/0x32
Nov 17 14:26:37 gdOv kernel: [ 3456.860066] Code: 48 8b b4 24 48 03 00 00 eb 0b a5 65 b7 e6 ff ff ff ff cc cc cc e8 e4 a8 45 00 8b 94 24 54 03 00 00 39 c2 0f 84 b7 08 00 00 4c 8b <ac> 24 e8 02 00 00 4d 89 65 50 48 8b bc 24 30 02 00 00 eb 0b 00 
Nov 17 14:26:37 gdOv kernel: [ 3456.863587] RIP  [<ffffffff81361cbd>] do_blockdev_direct_IO+0x2c9d/0x4fe0
Nov 17 14:26:37 gdOv kernel: [ 3456.865253]  RSP <ffffc9000722fc48>
Nov 17 14:26:37 gdOv kernel: [ 3456.866931] CR2: 00000000000003e8
Nov 17 14:26:37 gdOv kernel: [ 3456.876484] ---[ end trace b254e691dff20938 ]---
Nov 17 14:26:37 gdOv kernel: [ 3456.876487] grsec: banning user with uid 1000 until system restart for suspicious kernel crash
Nov 17 14:26:37 gdOv kernel: [ 3456.895953] grsec: exec of /sbin/agetty (/sbin/getty 38400 tty6 ) by /sbin/agetty[init:27966] uid/euid:0/0 gid/egid:0/0, parent /sbin/init[init:1] uid/euid:0/0 gid/egid:0/0

I'd be very much interested to know what that could be... Any information that would be needed I'll try to do my best to provide. This happened similarly a few times. I'll try and see if I can explain more, and as systematically as I can, at the address given in the first post grsec-unoff RAP related Call Traces

[miroR]

@HacKurx, I'm afraid there are still issues with the patch for 4.9.62.

Nov 18 09:33:36 gdOv kernel: [ 1918.420433] general protection fault: 0000 [#1] SMP
Nov 18 09:33:36 gdOv kernel: [ 1918.421791] Modules linked in: nf_log_ipv4 nf_log_common xt_LOG xt_tcpudp xt_conntrack iptable_filter iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_raw ip_tables x_tables cx22702 isl6421 cx24123 cx88_dvb cx88_vp3054_i2c videobuf2_dvb dvb_core wm8775 ir_lirc_codec ir_rc5_decoder lirc_dev rc_hauppauge tuner_simple tuner_types tda9887 tda8290 tuner snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel edac_mce_amd snd_hda_codec edac_core snd_hda_core amdkfd cx8802 radeon cx8800 cx88_alsa mxm_wmi snd_hwdep snd_pcm cx88xx snd_timer ttm drm_kms_helper drm tveeprom fb_sys_fops k10temp videobuf2_dma_sg syscopyarea videobuf2_memops v4l2_common sysfillrect kvm_amd kvm irqbypass snd evdev serio_raw videobuf2_v4l2 pcspkr videobuf2_core sysimgblt soundcore
Nov 18 09:33:36 gdOv kernel: [ 1918.428454]  videodev media i2c_algo_bit nuvoton_cir sp5100_tco sg wmi shpchp rc_core button acpi_cpufreq ext4 crc16 jbd2 fscrypto mbcache xts gf128mul algif_skcipher af_alg dm_crypt dm_mod sr_mod cdrom sd_mod ata_generic uas usb_storage ohci_pci psmouse r8169 mii firewire_ohci ahci firewire_core crc_itu_t libahci sky2 pata_atiixp libata xhci_pci ehci_pci ohci_hcd xhci_hcd ehci_hcd i2c_piix4 scsi_mod usbcore fjes
Nov 18 09:33:36 gdOv kernel: [ 1918.436249] CPU: 3 PID: 4097 Comm: Xorg Not tainted 4.9.62-unofficial+grsec171117-23 #1
Nov 18 09:33:36 gdOv kernel: [ 1918.438360] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Nov 18 09:33:36 gdOv kernel: [ 1918.440532] task: ffff88031b860680 task.stack: ffffc9000a164000
Nov 18 09:33:36 gdOv kernel: [ 1918.442702] RIP: 0010:[<ffffffff8115a534>]  [<ffffffff8115a534>] vma_wants_writenotify+0x94/0xc0
Nov 18 09:33:36 gdOv kernel: [ 1918.444968] RSP: 0018:ffffc9000a167cf0  EFLAGS: 00010287
Nov 18 09:33:36 gdOv kernel: [ 1918.447247] RAX: ff8803194de000ff RBX: 8000000000000027 RCX: 4000000000000000
Nov 18 09:33:36 gdOv kernel: [ 1918.449569] RDX: 0000000000000020 RSI: 2000000000000000 RDI: ffff880322c9bfff
Nov 18 09:33:36 gdOv kernel: [ 1918.451887] RBP: ffff88031c743900 R08: ffff88031c743900 R09: 00000000140440bb
Nov 18 09:33:36 gdOv kernel: [ 1918.454263] R10: 8000000000000027 R11: ffff88031cd7a620 R12: 00003ffffffff278
Nov 18 09:33:36 gdOv kernel: [ 1918.456665] R13: 00000000140440bb R14: 0000000000000001 R15: 000003e3dc42b000
Nov 18 09:33:36 gdOv kernel: [ 1918.459090] FS:  000003e3dc412a40(0000) GS:ffff88032fd80000(0000) knlGS:0000000000000000
Nov 18 09:33:36 gdOv kernel: [ 1918.461557] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 18 09:33:36 gdOv kernel: [ 1918.464046] CR2: 000003e3dc424800 CR3: 00000000017e9000 CR4: 00000000000006f0
Nov 18 09:33:36 gdOv kernel: [ 1918.466518] Stack:
Nov 18 09:33:36 gdOv kernel: [ 1918.468906]  ffffffff8115a594 00000000140440bb 000003e3dc42b000 ffff880320dd66c0
Nov 18 09:33:36 gdOv kernel: [ 1918.471257]  ffff88031ab11980 ffffffff8115c27f ffff880320efb100 0000000000101332
Nov 18 09:33:36 gdOv kernel: [ 1918.473583]  0000000000000000 ffff88031c743900 00000000140440bb ffff88031c743900
Nov 18 09:33:36 gdOv kernel: [ 1918.475855] Call Trace:
Nov 18 09:33:36 gdOv kernel: [ 1918.478045]  [<ffffffff8115a594>] ? vma_set_page_prot+0x34/0x60
Nov 18 09:33:36 gdOv kernel: [ 1918.480243]  [<ffffffff8115c27f>] ? mmap_region+0x2cf/0x6d0
Nov 18 09:33:36 gdOv kernel: [ 1918.482475]  [<ffffffff8115cbe0>] ? do_mmap+0x560/0x620
Nov 18 09:33:36 gdOv kernel: [ 1918.484713]  [<ffffffff81142259>] ? vm_mmap_pgoff+0xb9/0x100
Nov 18 09:33:36 gdOv kernel: [ 1918.486940]  [<ffffffff8115a3d9>] ? sys_mmap_pgoff+0x1a9/0x270
Nov 18 09:33:36 gdOv kernel: [ 1918.489203]  [<ffffffff8154fd79>] ? entry_SYSCALL_64_fastpath+0x17/0xa8
Nov 18 09:33:36 gdOv kernel: [ 1918.491480] Code: c0 74 a4 48 8b 80 f8 00 00 00 48 85 c0 74 98 48 8b 38 48 c7 c0 40 ca 44 82 48 85 ff 74 14 48 8b 47 28 48 3b 05 d6 bf 34 01 74 10 <48> 8b 80 d8 00 00 00 8b 40 18 f7 d0 83 e0 01 c3 e8 97 0d 08 00 
Nov 18 09:33:36 gdOv kernel: [ 1918.496342] RIP  [<ffffffff8115a534>] vma_wants_writenotify+0x94/0xc0
Nov 18 09:33:36 gdOv kernel: [ 1918.498750]  RSP <ffffc9000a167cf0>
Nov 18 09:33:36 gdOv kernel: [ 1918.511405] ---[ end trace 31e80f49fd8dc8c9 ]---

There's much more at: grsec-unoff RAP related Call Traces, 171118-0933 oops

[theLOICofFRANCE]

Here is what changed in 4.9.62:

 Documentation/devicetree/bindings/arm/davinci.txt           |    4 
 Documentation/devicetree/bindings/clock/qoriq-clock.txt     |    1 
 Documentation/devicetree/bindings/vendor-prefixes.txt       |    1 
 Makefile                                                    |    2 
 arch/arm/boot/dts/imx53-qsb-common.dtsi                     |   20 +-
 arch/arm/boot/dts/stih410.dtsi                              |    2 
 arch/arm/configs/omap2plus_defconfig                        |    1 
 arch/arm/kernel/traps.c                                     |   28 ++-
 arch/arm64/mm/dma-mapping.c                                 |   17 +-
 arch/mips/ar7/platform.c                                    |    5 
 arch/mips/ar7/prom.c                                        |    2 
 arch/mips/include/asm/mips-cm.h                             |    4 
 arch/mips/kernel/process.c                                  |    4 
 arch/mips/kernel/smp-bmips.c                                |    4 
 arch/mips/kernel/smp.c                                      |   29 ++-
 arch/mips/mm/uasm-micromips.c                               |    2 
 arch/powerpc/boot/dts/fsl/kmcoge4.dts                       |    4 
 arch/powerpc/kernel/time.c                                  |    1 
 arch/powerpc/kvm/book3s_hv_rm_xics.c                        |    5 
 arch/s390/kernel/early.c                                    |   12 +
 arch/s390/kernel/topology.c                                 |   11 -
 arch/sh/kernel/cpu/sh3/setup-sh770x.c                       |    1 
 arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S            |   12 -
 arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S        |   12 -
 arch/x86/include/asm/uaccess.h                              |   13 +
 arch/x86/kernel/smpboot.c                                   |   11 -
 arch/x86/kernel/tsc.c                                       |    8 
 arch/x86/oprofile/op_model_ppro.c                           |    4 
 crypto/ccm.c                                                |    4 
 drivers/base/power/opp/of.c                                 |   12 -
 drivers/block/rbd.c                                         |    4 
 drivers/clk/mvebu/ap806-system-controller.c                 |   28 ++-
 drivers/clk/samsung/clk-exynos5433.c                        |    6 
 drivers/crypto/vmx/aes_ctr.c                                |    6 
 drivers/edac/amd64_edac.c                                   |   12 -
 drivers/edac/amd64_edac.h                                   |    1 
 drivers/gpu/drm/arm/malidp_planes.c                         |    3 
 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c                |   36 ++--
 drivers/gpu/drm/drm_drv.c                                   |    2 
 drivers/gpu/drm/i915/intel_drv.h                            |    1 
 drivers/gpu/drm/i915/intel_pm.c                             |   52 ++----
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c                         |    2 
 drivers/iio/magnetometer/mag3110.c                          |   30 ++-
 drivers/iio/pressure/ms5611_core.c                          |   12 -
 drivers/iio/proximity/sx9500.c                              |   10 -
 drivers/iio/trigger/iio-trig-interrupt.c                    |    8 
 drivers/iio/trigger/iio-trig-sysfs.c                        |    2 
 drivers/infiniband/sw/rxe/rxe_req.c                         |    1 
 drivers/infiniband/sw/rxe/rxe_resp.c                        |    1 
 drivers/infiniband/ulp/ipoib/ipoib_cm.c                     |    2 
 drivers/input/keyboard/mpr121_touchkey.c                    |   24 +-
 drivers/input/mouse/elan_i2c_core.c                         |    1 
 drivers/iommu/arm-smmu-v3.c                                 |   10 -
 drivers/media/i2c/adv7604.c                                 |    3 
 drivers/misc/cxl/pci.c                                      |    3 
 drivers/net/can/c_can/c_can_pci.c                           |    1 
 drivers/net/can/c_can/c_can_platform.c                      |    1 
 drivers/net/can/ifi_canfd/ifi_canfd.c                       |    6 
 drivers/net/can/sun4i_can.c                                 |   12 +
 drivers/net/usb/cdc_ncm.c                                   |   28 +++
 drivers/net/usb/huawei_cdc_ncm.c                            |    6 
 drivers/net/wireless/ath/wcn36xx/main.c                     |    3 
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c |    9 -
 drivers/net/wireless/marvell/libertas/cmd.c                 |    2 
 drivers/net/wireless/ralink/rt2x00/rt2800usb.c              |    5 
 drivers/net/xen-netback/netback.c                           |    6 
 drivers/pci/host/pci-mvebu.c                                |  101 +++++++-----
 drivers/pinctrl/intel/pinctrl-baytrail.c                    |    2 
 drivers/platform/x86/hp-wmi.c                               |   60 ++++---
 drivers/s390/net/qeth_core.h                                |    1 
 drivers/s390/net/qeth_core_main.c                           |   21 ++
 drivers/s390/net/qeth_l2_main.c                             |   15 -
 drivers/s390/net/qeth_l3_main.c                             |   15 -
 drivers/s390/net/qeth_l3_sys.c                              |   30 +--
 drivers/staging/iio/trigger/iio-trig-bfin-timer.c           |    4 
 drivers/tty/serial/sh-sci.c                                 |   17 --
 drivers/usb/core/hcd.c                                      |    1 
 drivers/video/fbdev/pmag-ba-fb.c                            |    2 
 include/dt-bindings/clock/exynos5433.h                      |    5 
 include/linux/phy.h                                         |    8 
 include/linux/preempt.h                                     |   21 +-
 include/linux/usb/cdc_ncm.h                                 |    1 
 include/sound/seq_kernel.h                                  |    3 
 kernel/sched/core.c                                         |    1 
 kernel/workqueue_internal.h                                 |    3 
 lib/asn1_decoder.c                                          |    4 
 net/dsa/Kconfig                                             |    5 
 net/ipv4/ah4.c                                              |    3 
 net/netfilter/nft_meta.c                                    |   28 +++
 security/apparmor/lsm.c                                     |    2 
 security/keys/trusted.c                                     |   71 +++-----
 sound/core/seq/oss/seq_oss_midi.c                           |    4 
 sound/core/seq/oss/seq_oss_readq.c                          |   29 +++
 sound/core/seq/oss/seq_oss_readq.h                          |    2 
 sound/soc/sunxi/sun4i-spdif.c                               |    8 
 tools/testing/selftests/firmware/fw_filesystem.sh           |    6 
 tools/testing/selftests/firmware/fw_userhelper.sh           |   28 +++
 97 files changed, 664 insertions(+), 412 deletions(-)

[theLOICofFRANCE]

I'm afraid there are still issues with the patch for 4.9.62.

Can you test that.

Thanks.

[miroR]

I'm afraid there are still issues with the patch for 4.9.62. Can you test that.

I'll first try and check if it too late to test that. (I was first overwhelmed with system not working, than I was busy, I'm sorry.) And if it's too late (as it looks to be), I guess it is better to test: 4.9.63

[miroR]

Ah, I see (slow at reading the logs and the sources a little). partial-reverse-commit-7c4788950ba5922fde976d80b72baf46f14dee8d.diff applies to either 4.9.62 and 4.9.63, after patching the kernel. Correct me if I'm wrong. Preparing for testing.

[miroR]

I'm running 4.9.63 with your patch, and the partial-reverse-commit:

$ uname -r
4.9.63-unofficial+grsec171121-10
$

No telling yet, because:

$ uptime
 13:52:14 up 14 min, 18 users,  load average: 1.60, 0.92, 0.43
$

But so far, so good. No issues in this short yet.

[miroR]

I'm running 4.9.63 with your patch, and the partial-reverse-commit:

Nope! The system froze dead again... Uptime was not much more than 1h. Must be something else. Because indeed I've been running 4.9.61 with your patch on three systems without issues for the last three days.

[miroR]

Here's a fresh one, and even though it's 4.9.61 HacKurx-patch kernel, I believe I owe it somehow (will hopefully be able to explain the circumstancial indications to that) to the 4.9.63 same-author patch kernel.

Nov 22 13:48:06 gdOv kernel: [53537.165773] PAX: please report this to pageexec@freemail.hu
Nov 22 13:48:06 gdOv kernel: [53537.165785] BUG: unable to handle kernel NULL pointer dereference at 00000000000003e8
Nov 22 13:48:06 gdOv kernel: [53537.167255] IP:
Nov 22 13:48:06 gdOv kernel: [53537.167262]  [<ffffffff81361cbd>] do_blockdev_direct_IO+0x2c9d/0x4fe0
Nov 22 13:48:06 gdOv kernel: PGD 2e33b0000 
Nov 22 13:48:06 gdOv kernel: [53537.167264] 
Nov 22 13:48:06 gdOv kernel: [53537.167265] Oops: 0000 [#1] SMP
Nov 22 13:48:06 gdOv kernel: [53537.167269] CPU: 2 PID: 27492 Comm: tshark Not tainted 4.9.61-unofficial+grsec171114-20 #1
Nov 22 13:48:06 gdOv kernel: [53537.167270] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Nov 22 13:48:06 gdOv kernel: [53537.167271] task: ffff88016ef2b280 task.stack: ffffc9000db84000
Nov 22 13:48:06 gdOv kernel: [53537.167272] RIP: 0010:[<ffffffff81361cbd>] 
Nov 22 13:48:06 gdOv kernel: [53537.167274]  [<ffffffff81361cbd>] do_blockdev_direct_IO+0x2c9d/0x4fe0
Nov 22 13:48:06 gdOv kernel: [53537.167275] RSP: 0018:ffffc9000db87c48  EFLAGS: 00010246
Nov 22 13:48:06 gdOv kernel: [53537.167275] RAX: 0000000000000000 RBX: ffff88031d963900 RCX: 0000000000000000
Nov 22 13:48:06 gdOv kernel: [53537.167276] RDX: 0000000000000000 RSI: 00000000000003e8 RDI: 00000000ffffffff
Nov 22 13:48:06 gdOv kernel: [53537.167277] RBP: ffffc9000db87c98 R08: 00000000ffffffc3 R09: 0000000000000000
Nov 22 13:48:06 gdOv kernel: [53537.167277] R10: ffffffff814958b0 R11: 0000000000000000 R12: ffff88031ecf9c00
Nov 22 13:48:06 gdOv kernel: [53537.167278] R13: ffff88031dba7800 R14: 0000000000000000 R15: 0000000000000000
Nov 22 13:48:06 gdOv kernel: [53537.167279] FS:  000003768b733ec0(0000) GS:ffff88032fd00000(0000) knlGS:0000000000000000
Nov 22 13:48:06 gdOv kernel: [53537.167280] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 22 13:48:06 gdOv kernel: [53537.167280] CR2: 00000000000003e8 CR3: 0000000002c26000 CR4: 00000000000006f0
Nov 22 13:48:06 gdOv kernel: [53537.167281] Stack:
Nov 22 13:48:06 gdOv kernel: [53537.167282]  ffffc9000db87c90
Nov 22 13:48:06 gdOv kernel: [53537.167282]  000000008128a28f 0000000000000000 0000000000000000<3>[53537.167284]  903bb4fa8554f77f
Nov 22 13:48:06 gdOv kernel: [53537.167284]  ffff88031dba7800 ffff8802e662b6e8 ffff88014d20f800<3>[53537.167285]  ffff88031dba7800
Nov 22 13:48:06 gdOv kernel: [53537.167286]  000000000000001b ffffc9000db87ce0 ffffffff812f7fb8<3>[53537.167287] Call Trace:
Nov 22 13:48:06 gdOv kernel: [53537.167291]  [<ffffffff812f7fb8>] prepare_binprm+0xc8/0x240
Nov 22 13:48:06 gdOv kernel: [53537.167294]  [<ffffffff812f8c47>] do_execveat_common.isra.53+0x677/0xd20
Nov 22 13:48:06 gdOv kernel: [53537.167297]  [<ffffffff812de9b8>] ? __check_object_size+0x178/0x31a
Nov 22 13:48:06 gdOv kernel: [53537.167299]  [<ffffffff8187318f>] ? strncpy_from_user+0x6f/0x1e0
Nov 22 13:48:06 gdOv kernel: [53537.167301]  [<ffffffff812ffb85>] ? getname_flags+0x85/0x260
Nov 22 13:48:06 gdOv kernel: [53537.167302]  [<ffffffff812f983b>] rap_sys_execve+0x6b/0xa0
Nov 22 13:48:06 gdOv kernel: [53537.167305]  [<ffffffff81001e2d>] do_syscall_64+0x8d/0x180
Nov 22 13:48:06 gdOv kernel: [53537.167307]  [<ffffffff825af54d>] entry_SYSCALL64_slow_path+0x32/0x32
Nov 22 13:48:06 gdOv kernel: [53537.167308] Code: 
Nov 22 13:48:06 gdOv kernel: [53537.167309] 48 8b b4 24 48 03 00 00 eb 0b a5 65 b7 e6 ff ff ff ff cc cc cc e8 e4 a8 45 00 8b 94 24 54 03 00 00 39 c2 0f 84 b7 08 00 00 4c 8b <ac> 24 e8 02 00 00 4d 89 65 50 48 8b bc 24 30 02 00 00 eb 0b 00 <1>[53537.167331] RIP 
Nov 22 13:48:06 gdOv kernel: [53537.167332]  [<ffffffff81361cbd>] do_blockdev_direct_IO+0x2c9d/0x4fe0
Nov 22 13:48:06 gdOv kernel: RSP <ffffc9000db87c48>
Nov 22 13:48:06 gdOv kernel: [53537.167333] CR2: 00000000000003e8
Nov 22 13:48:06 gdOv kernel: [53537.175251] ---[ end trace 201210643accd5d1 ]---
Nov 22 13:48:06 gdOv kernel: [53537.175253] grsec: banning user with uid 1000 until system restart for suspicious kernel crash
Nov 22 13:48:07 gdOv kernel: [53537.445984] grsec: (default:D:/) exec of /sbin/agetty (/sbin/getty 38400 tty6 ) by /sbin/agetty[init:27493] uid/euid:0/0 gid/egid:0/0, parent /sbin/init[init:1] uid/euid:0/0 gid/egid:0/0
Nov 22 13:48:07 gdOv kernel: [53538.015583] grsec: (default:D:/) special role admin (id 3) exited by /bin/bash[bash:3958] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/sudo[sudo:3957] uid/euid:0/0 gid/egid:0/0

Also, this time it may be related to RAP: rap_sys_execve (but I may stand corrected by people with real understanding, not vague like me)

[minipli]

This is not RAP related, as far as I can see. The kernel Oopses in do_blockdev_direct_IO() with a NULL pointer dereference bug.

Can you please post your kernel config and the filesystem type and mount options you're using for the following paths?: /usr/lib/x86_64-linux-gnu/wireshark/extcap/ /usr/bin/tshark

[miroR]

First, I can't say how happy I am you'r back, @minipli !

This is not RAP related, as far as I can see. The kernel Oopses in do_blockdev_direct_IO() with a NULL pointer dereference bug.

Hmmh... I'm sure you're right... (vague is my understanding)

Can you please post your kernel config and the filesystem type [...] kernel config in a separate post next, filesystem type is:

/dev/mapper/a2_548 /boot           ext2    defaults        0       2
/dev/mapper/a5_548 /               ext4    errors=remount-ro 0       1
/dev/mapper/a7_548 /Cmn            ext4    defaults        0       2
/dev/mapper/a6_548 none            swap    sw              0       0

> and mount options you're using for the following paths?:
> ```
> /usr/lib/x86_64-linux-gnu/wireshark/extcap/
> /usr/bin/tshark
> ```

But I'm not sure what you mean by mount options for these:

ls -l /usr/lib/x86_64-linux-gnu/wireshark/extcap/

total 136 -rwxr-xr-x 1 root root 43624 2017-05-27 22:50 androiddump -rwxr-xr-x 1 root root 35496 2017-05-27 22:50 ciscodump -rwxr-xr-x 1 root root 25688 2017-05-27 22:50 randpktdump -rwxr-xr-x 1 root root 27336 2017-05-27 22:50 sshdump #

and also:

ls -l /usr/bin/tshark

-rwxr-xr-x 1 root root 273896 2017-05-27 22:50 /usr/bin/tshark #

My /usr is on the already above pasted:

/dev/mapper/a5_548 / ext4 errors=remount-ro 0 1

Kernel config coming next.

[miroR]

# Security options
#

#
# Grsecurity
#
CONFIG_PAX_PER_CPU_PGD=y
CONFIG_TASK_SIZE_MAX_SHIFT=42
CONFIG_GRKERNSEC=y
CONFIG_GRKERNSEC_CONFIG_AUTO=y
# CONFIG_GRKERNSEC_CONFIG_CUSTOM is not set
# CONFIG_GRKERNSEC_CONFIG_SERVER is not set
CONFIG_GRKERNSEC_CONFIG_DESKTOP=y
# CONFIG_GRKERNSEC_CONFIG_VIRT_NONE is not set
# CONFIG_GRKERNSEC_CONFIG_VIRT_GUEST is not set
CONFIG_GRKERNSEC_CONFIG_VIRT_HOST=y
CONFIG_GRKERNSEC_CONFIG_VIRT_EPT=y
# CONFIG_GRKERNSEC_CONFIG_VIRT_SOFT is not set
# CONFIG_GRKERNSEC_CONFIG_VIRT_XEN is not set
# CONFIG_GRKERNSEC_CONFIG_VIRT_VMWARE is not set
CONFIG_GRKERNSEC_CONFIG_VIRT_KVM=y
# CONFIG_GRKERNSEC_CONFIG_VIRT_VIRTUALBOX is not set
# CONFIG_GRKERNSEC_CONFIG_VIRT_HYPERV is not set
# CONFIG_GRKERNSEC_CONFIG_PRIORITY_PERF is not set
CONFIG_GRKERNSEC_CONFIG_PRIORITY_SECURITY=y

#
# Default Special Groups
#
CONFIG_GRKERNSEC_PROC_GID=1001
CONFIG_GRKERNSEC_TPE_UNTRUSTED_GID=1005

#
# Customize Configuration
#

#
# PaX
#
CONFIG_PAX=y

#
# PaX Control
#
# CONFIG_PAX_SOFTMODE is not set
CONFIG_PAX_EI_PAX=y
CONFIG_PAX_PT_PAX_FLAGS=y
CONFIG_PAX_XATTR_PAX_FLAGS=y
# CONFIG_PAX_NO_ACL_FLAGS is not set
CONFIG_PAX_HAVE_ACL_FLAGS=y
# CONFIG_PAX_HOOK_ACL_FLAGS is not set

#
# Non-executable pages
#
CONFIG_PAX_NOEXEC=y
CONFIG_PAX_PAGEEXEC=y
CONFIG_PAX_EMUTRAMP=y
CONFIG_PAX_MPROTECT=y
# CONFIG_PAX_MPROTECT_COMPAT is not set
# CONFIG_PAX_ELFRELOCS is not set
CONFIG_PAX_KERNEXEC=y
CONFIG_PAX_KERNEXEC_PLUGIN=y
# CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_NONE is not set
CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS=y
# CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR is not set

#
# Address Space Layout Randomization
#
CONFIG_PAX_ASLR=y
CONFIG_PAX_RANDKSTACK=y
CONFIG_PAX_RANDUSTACK=y
CONFIG_PAX_RANDMMAP=y

#
# Miscellaneous hardening features
#
CONFIG_PAX_MEMORY_SANITIZE=y
CONFIG_PAX_MEMORY_STACKLEAK=y
CONFIG_PAX_MEMORY_STRUCTLEAK=y
CONFIG_PAX_MEMORY_UDEREF=y
CONFIG_PAX_REFCOUNT=y
CONFIG_PAX_USERCOPY=y
CONFIG_PAX_CONSTIFY_PLUGIN=y
# CONFIG_PAX_USERCOPY_DEBUG is not set
CONFIG_PAX_SIZE_OVERFLOW=y
CONFIG_PAX_SIZE_OVERFLOW_EXTRA=y
# CONFIG_PAX_INITIFY is not set
CONFIG_HAVE_PAX_INITIFY_INIT_EXIT=y
CONFIG_PAX_LATENT_ENTROPY=y
CONFIG_PAX_RAP=y
CONFIG_PAX_RAP_VERBOSE=y

#
# Memory Protections
#
CONFIG_GRKERNSEC_KMEM=y
# CONFIG_GRKERNSEC_IO is not set
CONFIG_GRKERNSEC_BPF_HARDEN=y
CONFIG_GRKERNSEC_PERF_HARDEN=y
CONFIG_GRKERNSEC_RAND_THREADSTACK=y
CONFIG_GRKERNSEC_PROC_MEMMAP=y
CONFIG_GRKERNSEC_KSTACKOVERFLOW=y
CONFIG_GRKERNSEC_BRUTE=y
CONFIG_GRKERNSEC_HIDESYM=y
CONFIG_GRKERNSEC_RANDSTRUCT=y
# CONFIG_GRKERNSEC_RANDSTRUCT_PERFORMANCE is not set
CONFIG_GRKERNSEC_KERN_LOCKOUT=y

#
# Role Based Access Control Options
#
# CONFIG_GRKERNSEC_NO_RBAC is not set
# CONFIG_GRKERNSEC_ACL_HIDEKERN is not set
CONFIG_GRKERNSEC_ACL_MAXTRIES=3
CONFIG_GRKERNSEC_ACL_TIMEOUT=30

#
# Filesystem Protections
#
CONFIG_GRKERNSEC_PROC=y
# CONFIG_GRKERNSEC_PROC_USER is not set
CONFIG_GRKERNSEC_PROC_USERGROUP=y
CONFIG_GRKERNSEC_PROC_ADD=y
CONFIG_GRKERNSEC_LINK=y
# CONFIG_GRKERNSEC_SYMLINKOWN is not set
CONFIG_GRKERNSEC_FIFO=y
# CONFIG_GRKERNSEC_SYSFS_RESTRICT is not set
# CONFIG_GRKERNSEC_ROFS is not set
CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL=y
CONFIG_GRKERNSEC_CHROOT=y
CONFIG_GRKERNSEC_CHROOT_MOUNT=y
CONFIG_GRKERNSEC_CHROOT_DOUBLE=y
CONFIG_GRKERNSEC_CHROOT_PIVOT=y
CONFIG_GRKERNSEC_CHROOT_CHDIR=y
CONFIG_GRKERNSEC_CHROOT_CHMOD=y
CONFIG_GRKERNSEC_CHROOT_FCHDIR=y
CONFIG_GRKERNSEC_CHROOT_MKNOD=y
CONFIG_GRKERNSEC_CHROOT_SHMAT=y
CONFIG_GRKERNSEC_CHROOT_UNIX=y
CONFIG_GRKERNSEC_CHROOT_FINDTASK=y
CONFIG_GRKERNSEC_CHROOT_NICE=y
CONFIG_GRKERNSEC_CHROOT_SYSCTL=y
CONFIG_GRKERNSEC_CHROOT_RENAME=y
CONFIG_GRKERNSEC_CHROOT_CAPS=y
CONFIG_GRKERNSEC_CHROOT_INITRD=y

#
# Kernel Auditing
#
# CONFIG_GRKERNSEC_AUDIT_GROUP is not set
CONFIG_GRKERNSEC_EXECLOG=y
CONFIG_GRKERNSEC_RESLOG=y
CONFIG_GRKERNSEC_CHROOT_EXECLOG=y
CONFIG_GRKERNSEC_AUDIT_PTRACE=y
CONFIG_GRKERNSEC_AUDIT_CHDIR=y
CONFIG_GRKERNSEC_AUDIT_MOUNT=y
CONFIG_GRKERNSEC_SIGNAL=y
CONFIG_GRKERNSEC_FORKFAIL=y
CONFIG_GRKERNSEC_TIME=y
CONFIG_GRKERNSEC_PROC_IPADDR=y
CONFIG_GRKERNSEC_RWXMAP_LOG=y

#
# Executable Protections
#
CONFIG_GRKERNSEC_DMESG=y
CONFIG_GRKERNSEC_HARDEN_PTRACE=y
CONFIG_GRKERNSEC_PTRACE_READEXEC=y
CONFIG_GRKERNSEC_SETXID=y
CONFIG_GRKERNSEC_HARDEN_IPC=y
CONFIG_GRKERNSEC_HARDEN_TTY=y
CONFIG_GRKERNSEC_TPE=y
CONFIG_GRKERNSEC_TPE_ALL=y
# CONFIG_GRKERNSEC_TPE_INVERT is not set
CONFIG_GRKERNSEC_TPE_GID=1005

#
# Network Protections
#
CONFIG_GRKERNSEC_BLACKHOLE=y
CONFIG_GRKERNSEC_NO_SIMULT_CONNECT=y
# CONFIG_GRKERNSEC_SOCKET is not set

#
# Physical Protections
#
CONFIG_GRKERNSEC_DENYUSB=y
# CONFIG_GRKERNSEC_DENYUSB_FORCE is not set

#
# Sysctl Support
#
CONFIG_GRKERNSEC_SYSCTL=y
CONFIG_GRKERNSEC_SYSCTL_ON=y

#
# Logging Options
#
CONFIG_GRKERNSEC_FLOODTIME=10
CONFIG_GRKERNSEC_FLOODBURST=6

You need the whole config: /boot/config-4.9.61-unofficial+grsec171114-20, pls. say, but I'll encrypt it to your PGP-key and post it on my site. Anything else, if I don't drop too tired before I can do it, do say. Else, in the morning. @HacKurx, me, other people really missed you!

[miroR]

After HacKurx posted https://github.com/minipli/linux-unofficial_grsec/issues/20#issuecomment-349995870 (and see my ramblings afterwards, pick out what's relevant from it), I went and compiled vanilla 4.14.4. Surprise! Just read:

Dec  9 14:14:57 gdOv kernel: [  298.008112] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec  9 14:14:57 gdOv kernel: [  298.008125] IP: _raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.008126] PGD 0 P4D 0 
Dec  9 14:14:57 gdOv kernel: [  298.008129] Oops: 0002 [#1] SMP
Dec  9 14:14:57 gdOv kernel: [  298.008132] CPU: 3 PID: 3447 Comm: xterm Not tainted 4.14.4171209-12 #1
Dec  9 14:14:57 gdOv kernel: [  298.008133] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 14:14:57 gdOv kernel: [  298.008135] task: ffffa254dcf7cdc0 task.stack: ffffacad01d74000
Dec  9 14:14:57 gdOv kernel: [  298.008137] RIP: 0010:_raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.008138] RSP: 0018:ffffacad01d77c08 EFLAGS: 00010246
Dec  9 14:14:57 gdOv kernel: [  298.008140] RAX: 0000000000000000 RBX: ffffa254e0070800 RCX: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.008141] RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.008142] RBP: ffffacad01d77c08 R08: 0000000000000000 R09: 000000007ffff000
Dec  9 14:14:57 gdOv kernel: [  298.008143] R10: ffffacad01d77d88 R11: ffffa254dcf7cdc0 R12: 0000000000000040
Dec  9 14:14:57 gdOv kernel: [  298.008144] R13: 0000000000000000 R14: ffffacad01d77ec0 R15: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.008145] FS:  00007f7650822bc0(0000) GS:ffffa254efd80000(0000) knlGS:0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.008146] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 14:14:57 gdOv kernel: [  298.008147] CR2: 0000000000000000 CR3: 00000002e0823000 CR4: 00000000000006e0
Dec  9 14:14:57 gdOv kernel: [  298.008149] Call Trace:
Dec  9 14:14:57 gdOv kernel: [  298.008153]  unix_stream_read_generic+0x14a/0x850
Dec  9 14:14:57 gdOv kernel: [  298.008157]  ? import_iovec+0x43/0xf0
Dec  9 14:14:57 gdOv kernel: [  298.008158]  unix_stream_recvmsg+0x4c/0x70
Dec  9 14:14:57 gdOv kernel: [  298.008159]  ? __unix_insert_socket+0x40/0x40
Dec  9 14:14:57 gdOv kernel: [  298.008162]  sock_recvmsg+0x14/0x20
Dec  9 14:14:57 gdOv kernel: [  298.008164]  ___sys_recvmsg+0xe1/0x200
Dec  9 14:14:57 gdOv kernel: [  298.008167]  ? vfs_writev+0xab/0x110
Dec  9 14:14:57 gdOv kernel: [  298.008169]  __sys_recvmsg+0x53/0x90
Dec  9 14:14:57 gdOv kernel: [  298.008170]  SyS_recvmsg+0xd/0x20
Dec  9 14:14:57 gdOv kernel: [  298.008172]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 14:14:57 gdOv kernel: [  298.008174] RIP: 0033:0x7f764ea7b917
Dec  9 14:14:57 gdOv kernel: [  298.008175] RSP: 002b:00007ffe458aa108 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
Dec  9 14:14:57 gdOv kernel: [  298.008176] RAX: ffffffffffffffda RBX: 00005620bc37bb40 RCX: 00007f764ea7b917
Dec  9 14:14:57 gdOv kernel: [  298.008177] RDX: 0000000000000000 RSI: 00007ffe458aa160 RDI: 0000000000000003
Dec  9 14:14:57 gdOv kernel: [  298.008178] RBP: 00005620bc6b2780 R08: 00005620bc686d48 R09: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.008179] R10: 0000000000000000 R11: 0000000000000246 R12: 00005620bc754f20
Dec  9 14:14:57 gdOv kernel: [  298.008180] R13: 00005620bc384e00 R14: 00005620bc6ac7c0 R15: 00005620bc37bb40
Dec  9 14:14:57 gdOv kernel: [  298.008182] Code: 00 f0 80 61 02 df 0f ae f0 48 8b 11 83 e2 08 74 0b 65 81 25 f4 c9 1b 66 ff ff ff 7f 5d c3 90 90 55 48 89 e5 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 02 5d c3 89 c6 e8 74 45 2c ff 5d 0f 1f 00 
Dec  9 14:14:57 gdOv kernel: [  298.008201] RIP: _raw_spin_lock+0xb/0x30 RSP: ffffacad01d77c08
Dec  9 14:14:57 gdOv kernel: [  298.008202] CR2: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.008203] ---[ end trace 4eca4bb077bac4e0 ]---
Dec  9 14:14:57 gdOv kernel: [  298.008983] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec  9 14:14:57 gdOv kernel: [  298.008988] IP: _raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.008989] PGD 0 P4D 0 
Dec  9 14:14:57 gdOv kernel: [  298.008996] Oops: 0002 [#2] SMP
Dec  9 14:14:57 gdOv kernel: [  298.008998] CPU: 3 PID: 3422 Comm: openbox Tainted: G      D         4.14.4171209-12 #1
Dec  9 14:14:57 gdOv kernel: [  298.008999] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 14:14:57 gdOv kernel: [  298.009000] task: ffffa254d7a05140 task.stack: ffffacad01c90000
Dec  9 14:14:57 gdOv kernel: [  298.009002] RIP: 0010:_raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.009003] RSP: 0018:ffffacad01c93c08 EFLAGS: 00010246
Dec  9 14:14:57 gdOv kernel: [  298.009004] RAX: 0000000000000000 RBX: ffffa254dcf14800 RCX: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.009005] RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.009006] RBP: ffffacad01c93c08 R08: 0000000000000000 R09: 000000007ffff000
Dec  9 14:14:57 gdOv kernel: [  298.009007] R10: ffffacad01c93d88 R11: ffffa254d7a05140 R12: 0000000000000040
Dec  9 14:14:57 gdOv kernel: [  298.009008] R13: 0000000000000000 R14: ffffacad01c93ec0 R15: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.009009] FS:  00007f3974547500(0000) GS:ffffa254efd80000(0000) knlGS:0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.009010] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 14:14:57 gdOv kernel: [  298.009011] CR2: 0000000000000000 CR3: 00000003179e4000 CR4: 00000000000006e0
Dec  9 14:14:57 gdOv kernel: [  298.009012] Call Trace:
Dec  9 14:14:57 gdOv kernel: [  298.009014]  unix_stream_read_generic+0x14a/0x850
Dec  9 14:14:57 gdOv kernel: [  298.009016]  ? import_iovec+0x43/0xf0
Dec  9 14:14:57 gdOv kernel: [  298.009018]  unix_stream_recvmsg+0x4c/0x70
Dec  9 14:14:57 gdOv kernel: [  298.009019]  ? __unix_insert_socket+0x40/0x40
Dec  9 14:14:57 gdOv kernel: [  298.009021]  sock_recvmsg+0x14/0x20
Dec  9 14:14:57 gdOv kernel: [  298.009022]  ___sys_recvmsg+0xe1/0x200
Dec  9 14:14:57 gdOv kernel: [  298.009024]  ? do_iter_write+0xf6/0x1b0
Dec  9 14:14:57 gdOv kernel: [  298.009025]  ? vfs_writev+0xab/0x110
Dec  9 14:14:57 gdOv kernel: [  298.009028]  ? handle_mm_fault+0xbc/0x210
Dec  9 14:14:57 gdOv kernel: [  298.009029]  __sys_recvmsg+0x53/0x90
Dec  9 14:14:57 gdOv kernel: [  298.009031]  SyS_recvmsg+0xd/0x20
Dec  9 14:14:57 gdOv kernel: [  298.009033]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 14:14:57 gdOv kernel: [  298.009034] RIP: 0033:0x7f39725b5917
Dec  9 14:14:57 gdOv kernel: [  298.009035] RSP: 002b:00007fffc904a818 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
Dec  9 14:14:57 gdOv kernel: [  298.009036] RAX: ffffffffffffffda RBX: 0000557fd6e86670 RCX: 00007f39725b5917
Dec  9 14:14:57 gdOv kernel: [  298.009037] RDX: 0000000000000000 RSI: 00007fffc904a870 RDI: 0000000000000005
Dec  9 14:14:57 gdOv kernel: [  298.009038] RBP: 0000000000000000 R08: 0000557fd6e86688 R09: 0000000000000002
Dec  9 14:14:57 gdOv kernel: [  298.009039] R10: 0000557fd6f02360 R11: 0000000000000246 R12: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.009040] R13: 0000557fd6e86688 R14: 0000000000000000 R15: 00007f3972876850
Dec  9 14:14:57 gdOv kernel: [  298.009041] Code: 00 f0 80 61 02 df 0f ae f0 48 8b 11 83 e2 08 74 0b 65 81 25 f4 c9 1b 66 ff ff ff 7f 5d c3 90 90 55 48 89 e5 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 02 5d c3 89 c6 e8 74 45 2c ff 5d 0f 1f 00 
Dec  9 14:14:57 gdOv kernel: [  298.009060] RIP: _raw_spin_lock+0xb/0x30 RSP: ffffacad01c93c08
Dec  9 14:14:57 gdOv kernel: [  298.009061] CR2: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.009074] ---[ end trace 4eca4bb077bac4e1 ]---
Dec  9 14:14:57 gdOv kernel: [  298.011133] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec  9 14:14:57 gdOv kernel: [  298.011143] IP: _raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.011144] PGD 0 P4D 0 
Dec  9 14:14:57 gdOv kernel: [  298.011146] Oops: 0002 [#3] SMP
Dec  9 14:14:57 gdOv kernel: [  298.011149] CPU: 3 PID: 3415 Comm: Xorg Tainted: G      D         4.14.4171209-12 #1
Dec  9 14:14:57 gdOv kernel: [  298.011150] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 14:14:57 gdOv kernel: [  298.011151] task: ffffa254dc010f40 task.stack: ffffacad09cd0000
Dec  9 14:14:57 gdOv kernel: [  298.011153] RIP: 0010:_raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.011154] RSP: 0018:ffffacad09cd3c08 EFLAGS: 00010246
Dec  9 14:14:57 gdOv kernel: [  298.011156] RAX: 0000000000000000 RBX: ffffa254dcfcbc00 RCX: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.011157] RDX: 0000000000000001 RSI: 0000000000004000 RDI: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011158] RBP: ffffacad09cd3c08 R08: 0000000000000000 R09: 000000007ffff000
Dec  9 14:14:57 gdOv kernel: [  298.011159] R10: ffffacad09cd3d88 R11: ffffa254dc010f40 R12: 0000000000000040
Dec  9 14:14:57 gdOv kernel: [  298.011160] R13: 0000000000000000 R14: ffffacad09cd3ec0 R15: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011161] FS:  00007fd785b8fa80(0000) GS:ffffa254efd80000(0000) knlGS:0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011162] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 14:14:57 gdOv kernel: [  298.011163] CR2: 0000000000000000 CR3: 0000000317a63000 CR4: 00000000000006e0
Dec  9 14:14:57 gdOv kernel: [  298.011164] Call Trace:
Dec  9 14:14:57 gdOv kernel: [  298.011167]  unix_stream_read_generic+0x14a/0x850
Dec  9 14:14:57 gdOv kernel: [  298.011170]  ? import_iovec+0x43/0xf0
Dec  9 14:14:57 gdOv kernel: [  298.011171]  unix_stream_recvmsg+0x4c/0x70
Dec  9 14:14:57 gdOv kernel: [  298.011173]  ? __unix_insert_socket+0x40/0x40
Dec  9 14:14:57 gdOv kernel: [  298.011175]  sock_recvmsg+0x14/0x20
Dec  9 14:14:57 gdOv kernel: [  298.011177]  ___sys_recvmsg+0xe1/0x200
Dec  9 14:14:57 gdOv kernel: [  298.011180]  ? __handle_mm_fault+0x3f8/0xc40
Dec  9 14:14:57 gdOv kernel: [  298.011183]  ? timerqueue_add+0x57/0x80
Dec  9 14:14:57 gdOv kernel: [  298.011187]  ? enqueue_hrtimer+0x46/0xa0
Dec  9 14:14:57 gdOv kernel: [  298.011188]  ? hrtimer_start_range_ns+0x1b7/0x330
Dec  9 14:14:57 gdOv kernel: [  298.011192]  ? __fget_light+0x46/0x60
Dec  9 14:14:57 gdOv kernel: [  298.011194]  __sys_recvmsg+0x53/0x90
Dec  9 14:14:57 gdOv kernel: [  298.011196]  SyS_recvmsg+0xd/0x20
Dec  9 14:14:57 gdOv kernel: [  298.011198]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 14:14:57 gdOv kernel: [  298.011199] RIP: 0033:0x7fd783300080
Dec  9 14:14:57 gdOv kernel: [  298.011200] RSP: 002b:00007fff52c5e9a0 EFLAGS: 00003293 ORIG_RAX: 000000000000002f
Dec  9 14:14:57 gdOv kernel: [  298.011202] RAX: ffffffffffffffda RBX: 000055ed014ea140 RCX: 00007fd783300080
Dec  9 14:14:57 gdOv kernel: [  298.011203] RDX: 0000000000000000 RSI: 00007fff52c5e9e0 RDI: 0000000000000007
Dec  9 14:14:57 gdOv kernel: [  298.011204] RBP: 00007fd7832e8b00 R08: 0000000000000000 R09: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011205] R10: 00000000000000fb R11: 0000000000003293 R12: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011206] R13: 0000000000000190 R14: 000055ed014ea2d0 R15: 0000000000000020
Dec  9 14:14:57 gdOv kernel: [  298.011207] Code: 00 f0 80 61 02 df 0f ae f0 48 8b 11 83 e2 08 74 0b 65 81 25 f4 c9 1b 66 ff ff ff 7f 5d c3 90 90 55 48 89 e5 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 02 5d c3 89 c6 e8 74 45 2c ff 5d 0f 1f 00 
Dec  9 14:14:57 gdOv kernel: [  298.011225] RIP: _raw_spin_lock+0xb/0x30 RSP: ffffacad09cd3c08
Dec  9 14:14:57 gdOv kernel: [  298.011226] CR2: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011228] ---[ end trace 4eca4bb077bac4e2 ]---
Dec  9 14:14:57 gdOv kernel: [  298.011400] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec  9 14:14:57 gdOv kernel: [  298.011404] IP: _raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.011405] PGD 0 P4D 0 
Dec  9 14:14:57 gdOv kernel: [  298.011407] Oops: 0002 [#4] SMP
Dec  9 14:14:57 gdOv kernel: [  298.011409] CPU: 3 PID: 3436 Comm: xterm Tainted: G      D         4.14.4171209-12 #1
Dec  9 14:14:57 gdOv kernel: [  298.011410] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 14:14:57 gdOv kernel: [  298.011411] task: ffffa254e0144000 task.stack: ffffacad01d34000
Dec  9 14:14:57 gdOv kernel: [  298.011413] RIP: 0010:_raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.011414] RSP: 0018:ffffacad01d37c08 EFLAGS: 00010246
Dec  9 14:14:57 gdOv kernel: [  298.011415] RAX: 0000000000000000 RBX: ffffa254d7b19800 RCX: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.011416] RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011417] RBP: ffffacad01d37c08 R08: 0000000000000000 R09: 000000007ffff000
Dec  9 14:14:57 gdOv kernel: [  298.011418] R10: ffffacad01d37d88 R11: ffffa254e0144000 R12: 0000000000000040
Dec  9 14:14:57 gdOv kernel: [  298.011419] R13: 0000000000000000 R14: ffffacad01d37ec0 R15: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011420] FS:  00007f7db9f5dbc0(0000) GS:ffffa254efd80000(0000) knlGS:0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011422] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 14:14:57 gdOv kernel: [  298.011423] CR2: 0000000000000000 CR3: 00000002e182e000 CR4: 00000000000006e0
Dec  9 14:14:57 gdOv kernel: [  298.011424] Call Trace:
Dec  9 14:14:57 gdOv kernel: [  298.011425]  unix_stream_read_generic+0x14a/0x850
Dec  9 14:14:57 gdOv kernel: [  298.011427]  ? import_iovec+0x43/0xf0
Dec  9 14:14:57 gdOv kernel: [  298.011429]  unix_stream_recvmsg+0x4c/0x70
Dec  9 14:14:57 gdOv kernel: [  298.011431]  ? __unix_insert_socket+0x40/0x40
Dec  9 14:14:57 gdOv kernel: [  298.011432]  sock_recvmsg+0x14/0x20
Dec  9 14:14:57 gdOv kernel: [  298.011434]  ___sys_recvmsg+0xe1/0x200
Dec  9 14:14:57 gdOv kernel: [  298.011437]  ? vfs_writev+0xab/0x110
Dec  9 14:14:57 gdOv kernel: [  298.011443]  ? put_prev_entity+0xdc/0x4f0
Dec  9 14:14:57 gdOv kernel: [  298.011444]  __sys_recvmsg+0x53/0x90
Dec  9 14:14:57 gdOv kernel: [  298.011446]  SyS_recvmsg+0xd/0x20
Dec  9 14:14:57 gdOv kernel: [  298.011448]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 14:14:57 gdOv kernel: [  298.011449] RIP: 0033:0x7f7db81b6917
Dec  9 14:14:57 gdOv kernel: [  298.011450] RSP: 002b:00007fff7af326b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
Dec  9 14:14:57 gdOv kernel: [  298.011452] RAX: ffffffffffffffda RBX: 000055ae005ee8f4 RCX: 00007f7db81b6917
Dec  9 14:14:57 gdOv kernel: [  298.011453] RDX: 0000000000000000 RSI: 00007fff7af32710 RDI: 0000000000000003
Dec  9 14:14:57 gdOv kernel: [  298.011454] RBP: 000000000000003d R08: 000055ae005abd48 R09: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.011455] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ae005ee674
Dec  9 14:14:57 gdOv kernel: [  298.011456] R13: 000000000000007a R14: 000055ae005d17c0 R15: 000055ae005e1430
Dec  9 14:14:57 gdOv kernel: [  298.011457] Code: 00 f0 80 61 02 df 0f ae f0 48 8b 11 83 e2 08 74 0b 65 81 25 f4 c9 1b 66 ff ff ff 7f 5d c3 90 90 55 48 89 e5 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 02 5d c3 89 c6 e8 74 45 2c ff 5d 0f 1f 00 
Dec  9 14:14:57 gdOv kernel: [  298.011476] RIP: _raw_spin_lock+0xb/0x30 RSP: ffffacad01d37c08
Dec  9 14:14:57 gdOv kernel: [  298.011477] CR2: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.011478] ---[ end trace 4eca4bb077bac4e3 ]---
Dec  9 14:14:57 gdOv kernel: [  298.013388] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec  9 14:14:57 gdOv kernel: [  298.013395] IP: _raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.013396] PGD 0 P4D 0 
Dec  9 14:14:57 gdOv kernel: [  298.013398] Oops: 0002 [#5] SMP
Dec  9 14:14:57 gdOv kernel: [  298.013401] CPU: 3 PID: 3448 Comm: xterm Tainted: G      D         4.14.4171209-12 #1
Dec  9 14:14:57 gdOv kernel: [  298.013401] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 14:14:57 gdOv kernel: [  298.013403] task: ffffa254a0863240 task.stack: ffffacad01d7c000
Dec  9 14:14:57 gdOv kernel: [  298.013405] RIP: 0010:_raw_spin_lock+0xb/0x30
Dec  9 14:14:57 gdOv kernel: [  298.013406] RSP: 0018:ffffacad01d7fc08 EFLAGS: 00010246
Dec  9 14:14:57 gdOv kernel: [  298.013407] RAX: 0000000000000000 RBX: ffffa254dcdd6c00 RCX: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.013408] RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.013410] RBP: ffffacad01d7fc08 R08: 0000000000000000 R09: 000000007ffff000
Dec  9 14:14:57 gdOv kernel: [  298.013411] R10: ffffacad01d7fd88 R11: ffffa254a0863240 R12: 0000000000000040
Dec  9 14:14:57 gdOv kernel: [  298.013412] R13: 0000000000000000 R14: ffffacad01d7fec0 R15: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.013413] FS:  00007f6a39429bc0(0000) GS:ffffa254efd80000(0000) knlGS:0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.013414] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 14:14:57 gdOv kernel: [  298.013415] CR2: 0000000000000000 CR3: 00000002e0930000 CR4: 00000000000006e0
Dec  9 14:14:57 gdOv kernel: [  298.013416] Call Trace:
Dec  9 14:14:57 gdOv kernel: [  298.013418]  unix_stream_read_generic+0x14a/0x850
Dec  9 14:14:57 gdOv kernel: [  298.013422]  ? import_iovec+0x43/0xf0
Dec  9 14:14:57 gdOv kernel: [  298.013423]  unix_stream_recvmsg+0x4c/0x70
Dec  9 14:14:57 gdOv kernel: [  298.013425]  ? __unix_insert_socket+0x40/0x40
Dec  9 14:14:57 gdOv kernel: [  298.013427]  sock_recvmsg+0x14/0x20
Dec  9 14:14:57 gdOv kernel: [  298.013430]  ___sys_recvmsg+0xe1/0x200
Dec  9 14:14:57 gdOv kernel: [  298.013432]  ? vfs_writev+0xab/0x110
Dec  9 14:14:57 gdOv kernel: [  298.013434]  __sys_recvmsg+0x53/0x90
Dec  9 14:14:57 gdOv kernel: [  298.013435]  SyS_recvmsg+0xd/0x20
Dec  9 14:14:57 gdOv kernel: [  298.013437]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 14:14:57 gdOv kernel: [  298.013438] RIP: 0033:0x7f6a37682917
Dec  9 14:14:57 gdOv kernel: [  298.013439] RSP: 002b:00007fff9e632d88 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
Dec  9 14:14:57 gdOv kernel: [  298.013441] RAX: ffffffffffffffda RBX: 0000564ffc1a2480 RCX: 00007f6a37682917
Dec  9 14:14:57 gdOv kernel: [  298.013442] RDX: 0000000000000000 RSI: 00007fff9e632de0 RDI: 0000000000000003
Dec  9 14:14:57 gdOv kernel: [  298.013443] RBP: 0000000000000000 R08: 0000564ffc1a9d48 R09: 0000000000000001
Dec  9 14:14:57 gdOv kernel: [  298.013444] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.013445] R13: 0000000000000008 R14: 000000000000000d R15: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.013446] Code: 00 f0 80 61 02 df 0f ae f0 48 8b 11 83 e2 08 74 0b 65 81 25 f4 c9 1b 66 ff ff ff 7f 5d c3 90 90 55 48 89 e5 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 02 5d c3 89 c6 e8 74 45 2c ff 5d 0f 1f 00 
Dec  9 14:14:57 gdOv kernel: [  298.013464] RIP: _raw_spin_lock+0xb/0x30 RSP: ffffacad01d7fc08
Dec  9 14:14:57 gdOv kernel: [  298.013465] CR2: 0000000000000000
Dec  9 14:14:57 gdOv kernel: [  298.013466] ---[ end trace 4eca4bb077bac4e4 ]---
Dec  9 14:14:57 gdOv kernel: [  298.026958] bash (3492) used greatest stack depth: 12544 bytes left

[miroR]

I had compiled the 4.14.4171209-12 # 1 from the above Call Trace under RBAC deployed, but it was with minor fault because of some perms in rules missing, because it complained about LD_PRELOAD and shared memory segment (or so, can't look up the log right now, allow correction later). And so I decided I should recompile to see if that was the reason. NOTE: Of course I'm not online and browsing with that vanilla kenrel. I rebooted into 4.9.67-unofficial+grsec171207-14 to go online. And I recompiled, no errors, kernel for the similar Call Trace below is 4.14.4171209-12 # 2. I left lines in the log around:

Dec  9 15:44:59 gdOv kernel: [  132.326586] tda9887 3-0043: i2c i/o error: rc == -6 (should be 4)
Dec  9 15:44:59 gdOv kernel: [  132.327473] tda9887 3-0043: i2c i/o error: rc == -6 (should be 4)

because that was the last thing I saw before the freeze.

Dec  9 15:43:27 gdOv kernel: [   14.167639] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null)
Dec  9 15:43:27 gdOv kernel: [   14.236293] udevd: 131 output lines suppressed due to ratelimiting
Dec  9 15:43:27 gdOv kernel: [   15.616159] sed (474) used greatest stack depth: 13144 bytes left
Dec  9 15:43:27 gdOv kernel: [   17.735282] EXT4-fs (dm-0): re-mounted. Opts: errors=remount-ro
Dec  9 15:43:27 gdOv kernel: [   36.315128] Adding 8997948k swap on /dev/mapper/a6_548.  Priority:-2 extents:1 across:8997948k FS
Dec  9 15:43:27 gdOv kernel: [   36.849033] EXT4-fs (dm-3): mounted filesystem with ordered data mode. Opts: (null)
Dec  9 15:43:27 gdOv kernel: [   36.849369] EXT4-fs (dm-2): mounting ext2 file system using the ext4 subsystem
Dec  9 15:43:27 gdOv kernel: [   36.881145] EXT4-fs (dm-2): mounted filesystem without journal. Opts: (null)
Dec  9 15:43:27 gdOv kernel: [   37.176811] dd (1442) used greatest stack depth: 13024 bytes left
Dec  9 15:43:27 gdOv kernel: [   37.603542] ip (1508) used greatest stack depth: 12648 bytes left
Dec  9 15:44:59 gdOv kernel: [  132.326586] tda9887 3-0043: i2c i/o error: rc == -6 (should be 4)
Dec  9 15:44:59 gdOv kernel: [  132.327473] tda9887 3-0043: i2c i/o error: rc == -6 (should be 4)
Dec  9 15:49:54 gdOv kernel: [  427.366433] BUG: unable to handle kernel paging request at ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.366444] IP: 0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.366445] PGD 8e60b067 P4D 8e60b067 PUD 0 
Dec  9 15:49:54 gdOv kernel: [  427.366449] Oops: 0010 [#1] SMP
Dec  9 15:49:54 gdOv kernel: [  427.366454] CPU: 3 PID: 3420 Comm: xterm Not tainted 4.14.4171209-12 #2
Dec  9 15:49:54 gdOv kernel: [  427.366455] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 15:49:54 gdOv kernel: [  427.366457] task: ffff9fac98f10340 task.stack: ffffae3841da4000
Dec  9 15:49:54 gdOv kernel: [  427.366458] RIP: 0010:0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.366459] RSP: 0018:ffffae3841da7b08 EFLAGS: 00010202
Dec  9 15:49:54 gdOv kernel: [  427.366461] RAX: 0000000000000000 RBX: ffffae3841da7b74 RCX: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.366462] RDX: 0000000000000019 RSI: ffff9fac9d1a2200 RDI: ffffae3841da7c60
Dec  9 15:49:54 gdOv kernel: [  427.366463] RBP: ffffae3841da7f10 R08: 0000000000000000 R09: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.366464] R10: 0000000000000000 R11: ffff9fac98f10340 R12: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.366465] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9fac9cf3e700
Dec  9 15:49:54 gdOv kernel: [  427.366467] FS:  00007fe3e0a29bc0(0000) GS:ffff9facafd80000(0000) knlGS:0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.366468] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 15:49:54 gdOv kernel: [  427.366469] CR2: ffffffff7d2370c0 CR3: 0000000318e6b000 CR4: 00000000000006e0
Dec  9 15:49:54 gdOv kernel: [  427.366470] Call Trace:
Dec  9 15:49:54 gdOv kernel: [  427.366476]  ? do_sys_poll+0x398/0x520
Dec  9 15:49:54 gdOv kernel: [  427.366480]  ? __wake_up_common_lock+0xa4/0xd0
Dec  9 15:49:54 gdOv kernel: [  427.366484]  ? mutex_lock+0xd/0x30
Dec  9 15:49:54 gdOv kernel: [  427.366487]  ? unix_stream_read_generic+0x25c/0x850
Dec  9 15:49:54 gdOv kernel: [  427.366491]  ? import_iovec+0x43/0xf0
Dec  9 15:49:54 gdOv kernel: [  427.366493]  ? unix_stream_recvmsg+0x4c/0x70
Dec  9 15:49:54 gdOv kernel: [  427.366494]  ? __unix_insert_socket+0x40/0x40
Dec  9 15:49:54 gdOv kernel: [  427.366497]  ? ___sys_recvmsg+0x16e/0x200
Dec  9 15:49:54 gdOv kernel: [  427.366499]  ? vfs_writev+0xab/0x110
Dec  9 15:49:54 gdOv kernel: [  427.366502]  ? __sys_recvmsg+0x53/0x90
Dec  9 15:49:54 gdOv kernel: [  427.366503]  SyS_poll+0x96/0x130
Dec  9 15:49:54 gdOv kernel: [  427.366506]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 15:49:54 gdOv kernel: [  427.366508] RIP: 0033:0x7fe3dec77a50
Dec  9 15:49:54 gdOv kernel: [  427.366509] RSP: 002b:00007fff280f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000007
Dec  9 15:49:54 gdOv kernel: [  427.366511] RAX: ffffffffffffffda RBX: 000055c0fd4c6d30 RCX: 00007fe3dec77a50
Dec  9 15:49:54 gdOv kernel: [  427.366512] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007fff280f6250
Dec  9 15:49:54 gdOv kernel: [  427.366513] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.366513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.366515] R13: 000055c0fd4c6d48 R14: 000055c0fd4ec7c0 R15: 000055c0fd2a4b40
Dec  9 15:49:54 gdOv kernel: [  427.366516] Code:  Bad RIP value.
Dec  9 15:49:54 gdOv kernel: [  427.366520] RIP: 0xffffffff7d2370c0 RSP: ffffae3841da7b08
Dec  9 15:49:54 gdOv kernel: [  427.366521] CR2: ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.366523] ---[ end trace 605b3990f744c9b5 ]---
Dec  9 15:49:54 gdOv kernel: [  427.368356] BUG: unable to handle kernel paging request at ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.368361] IP: 0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.368362] PGD 8e60b067 P4D 8e60b067 PUD 0 
Dec  9 15:49:54 gdOv kernel: [  427.368365] Oops: 0010 [#2] SMP
Dec  9 15:49:54 gdOv kernel: [  427.368367] CPU: 3 PID: 3395 Comm: openbox Tainted: G      D         4.14.4171209-12 #2
Dec  9 15:49:54 gdOv kernel: [  427.368369] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 15:49:54 gdOv kernel: [  427.368370] task: ffff9fac99400240 task.stack: ffffae3841d04000
Dec  9 15:49:54 gdOv kernel: [  427.368371] RIP: 0010:0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.368372] RSP: 0018:ffffae3841d07b08 EFLAGS: 00010202
Dec  9 15:49:54 gdOv kernel: [  427.368373] RAX: 0000000000000001 RBX: ffffae3841d07b7c RCX: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.368374] RDX: 0000000000000019 RSI: ffff9fac9cd91cc0 RDI: ffffae3841d07c60
Dec  9 15:49:54 gdOv kernel: [  427.368375] RBP: ffffae3841d07f10 R08: 0000000000000000 R09: ffff9facafd979e8
Dec  9 15:49:54 gdOv kernel: [  427.368376] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.368377] R13: 0000000000000001 R14: 0000000000000000 R15: ffff9fac9e72da00
Dec  9 15:49:54 gdOv kernel: [  427.368378] FS:  00007f5bc490e500(0000) GS:ffff9facafd80000(0000) knlGS:0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.368380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 15:49:54 gdOv kernel: [  427.368381] CR2: ffffffff7d2370c0 CR3: 0000000318e2b000 CR4: 00000000000006e0
Dec  9 15:49:54 gdOv kernel: [  427.368381] Call Trace:
Dec  9 15:49:54 gdOv kernel: [  427.368384]  ? do_sys_poll+0x398/0x520
Dec  9 15:49:54 gdOv kernel: [  427.368387]  ? kfree_skbmem+0x53/0x60
Dec  9 15:49:54 gdOv kernel: [  427.368389]  ? mutex_lock+0xd/0x30
Dec  9 15:49:54 gdOv kernel: [  427.368390]  ? unix_stream_read_generic+0x25c/0x850
Dec  9 15:49:54 gdOv kernel: [  427.368393]  ? compat_poll_select_copy_remaining+0x130/0x130
Dec  9 15:49:54 gdOv kernel: [  427.368395]  ? compat_poll_select_copy_remaining+0x130/0x130
Dec  9 15:49:54 gdOv kernel: [  427.368396]  ? ___sys_recvmsg+0x16e/0x200
Dec  9 15:49:54 gdOv kernel: [  427.368398]  ? do_iter_write+0xf6/0x1b0
Dec  9 15:49:54 gdOv kernel: [  427.368399]  ? vfs_writev+0xab/0x110
Dec  9 15:49:54 gdOv kernel: [  427.368401]  ? __sys_recvmsg+0x53/0x90
Dec  9 15:49:54 gdOv kernel: [  427.368402]  SyS_poll+0x2b/0x130
Dec  9 15:49:54 gdOv kernel: [  427.368404]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 15:49:54 gdOv kernel: [  427.368405] RIP: 0033:0x7f5bc2971a50
Dec  9 15:49:54 gdOv kernel: [  427.368406] RSP: 002b:00007ffc87eb6418 EFLAGS: 00000246 ORIG_RAX: 0000000000000007
Dec  9 15:49:54 gdOv kernel: [  427.368408] RAX: ffffffffffffffda RBX: 000000000000005b RCX: 00007f5bc2971a50
Dec  9 15:49:54 gdOv kernel: [  427.368409] RDX: 00000000ffffffff RSI: 0000000000000002 RDI: 0000558580375480
Dec  9 15:49:54 gdOv kernel: [  427.368409] RBP: 0000000000000020 R08: 0000000000000002 R09: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.368410] R10: 0000558580377480 R11: 0000000000000246 R12: 0000000000000090
Dec  9 15:49:54 gdOv kernel: [  427.368411] R13: 00007f5bc2c2cb58 R14: 00007f5bc2c2cbd8 R15: 00007f5bc2c2cb00
Dec  9 15:49:54 gdOv kernel: [  427.368413] Code:  Bad RIP value.
Dec  9 15:49:54 gdOv kernel: [  427.368416] RIP: 0xffffffff7d2370c0 RSP: ffffae3841d07b08
Dec  9 15:49:54 gdOv kernel: [  427.368416] CR2: ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.368418] ---[ end trace 605b3990f744c9b6 ]---
Dec  9 15:49:54 gdOv kernel: [  427.369642] BUG: unable to handle kernel paging request at ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369647] IP: 0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369648] PGD 8e60b067 P4D 8e60b067 PUD 0 
Dec  9 15:49:54 gdOv kernel: [  427.369651] Oops: 0010 [#3] SMP
Dec  9 15:49:54 gdOv kernel: [  427.369654] CPU: 0 PID: 3423 Comm: xterm Tainted: G      D         4.14.4171209-12 #2
Dec  9 15:49:54 gdOv kernel: [  427.369655] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 15:49:54 gdOv kernel: [  427.369656] task: ffff9fac98fda380 task.stack: ffffae3841dc4000
Dec  9 15:49:54 gdOv kernel: [  427.369657] RIP: 0010:0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369658] RSP: 0018:ffffae3841dc7b08 EFLAGS: 00010202
Dec  9 15:49:54 gdOv kernel: [  427.369660] RAX: 0000000000000000 RBX: ffffae3841dc7b74 RCX: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.369661] RDX: 0000000000000019 RSI: ffff9fac6243f5c0 RDI: ffffae3841dc7c60
Dec  9 15:49:54 gdOv kernel: [  427.369662] RBP: ffffae3841dc7f10 R08: 0000000000000000 R09: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.369663] R10: 0000000000000000 R11: ffff9fac98fda380 R12: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369664] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9fac54bfe900
Dec  9 15:49:54 gdOv kernel: [  427.369666] FS:  00007fcfa0b3cbc0(0000) GS:ffff9facafc00000(0000) knlGS:0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 15:49:54 gdOv kernel: [  427.369668] CR2: ffffffff7d2370c0 CR3: 0000000318f79000 CR4: 00000000000006f0
Dec  9 15:49:54 gdOv kernel: [  427.369669] Call Trace:
Dec  9 15:49:54 gdOv kernel: [  427.369671]  ? do_sys_poll+0x398/0x520
Dec  9 15:49:54 gdOv kernel: [  427.369674]  ? __wake_up_common_lock+0xa4/0xd0
Dec  9 15:49:54 gdOv kernel: [  427.369676]  ? mutex_lock+0xd/0x30
Dec  9 15:49:54 gdOv kernel: [  427.369677]  ? unix_stream_read_generic+0x25c/0x850
Dec  9 15:49:54 gdOv kernel: [  427.369680]  ? import_iovec+0x43/0xf0
Dec  9 15:49:54 gdOv kernel: [  427.369682]  ? unix_stream_recvmsg+0x4c/0x70
Dec  9 15:49:54 gdOv kernel: [  427.369683]  ? __unix_insert_socket+0x40/0x40
Dec  9 15:49:54 gdOv kernel: [  427.369685]  ? ___sys_recvmsg+0x16e/0x200
Dec  9 15:49:54 gdOv kernel: [  427.369686]  ? vfs_writev+0xab/0x110
Dec  9 15:49:54 gdOv kernel: [  427.369688]  ? __sys_recvmsg+0x53/0x90
Dec  9 15:49:54 gdOv kernel: [  427.369689]  SyS_poll+0x96/0x130
Dec  9 15:49:54 gdOv kernel: [  427.369691]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 15:49:54 gdOv kernel: [  427.369692] RIP: 0033:0x7fcf9ed8aa50
Dec  9 15:49:54 gdOv kernel: [  427.369693] RSP: 002b:00007fffb9eff668 EFLAGS: 00000246 ORIG_RAX: 0000000000000007
Dec  9 15:49:54 gdOv kernel: [  427.369695] RAX: ffffffffffffffda RBX: 0000000000057850 RCX: 00007fcf9ed8aa50
Dec  9 15:49:54 gdOv kernel: [  427.369696] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007fffb9eff750
Dec  9 15:49:54 gdOv kernel: [  427.369697] RBP: 0000565257134840 R08: 0000000000000001 R09: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.369698] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000e10
Dec  9 15:49:54 gdOv kernel: [  427.369699] R13: 00007fcf9f045b58 R14: 00005652570dc1e0 R15: 00007fcf9f045b00
Dec  9 15:49:54 gdOv kernel: [  427.369700] Code:  Bad RIP value.
Dec  9 15:49:54 gdOv kernel: [  427.369703] RIP: 0xffffffff7d2370c0 RSP: ffffae3841dc7b08
Dec  9 15:49:54 gdOv kernel: [  427.369704] CR2: ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369706] ---[ end trace 605b3990f744c9b7 ]---
Dec  9 15:49:54 gdOv kernel: [  427.369707] BUG: unable to handle kernel paging request at ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369712] IP: 0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369713] PGD 8e60b067 P4D 8e60b067 PUD 0 
Dec  9 15:49:54 gdOv kernel: [  427.369716] Oops: 0010 [#4] SMP
Dec  9 15:49:54 gdOv kernel: [  427.369718] CPU: 1 PID: 3387 Comm: xinit Tainted: G      D         4.14.4171209-12 #2
Dec  9 15:49:54 gdOv kernel: [  427.369719] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 15:49:54 gdOv kernel: [  427.369721] task: ffff9fac9cce0f00 task.stack: ffffae3849b4c000
Dec  9 15:49:54 gdOv kernel: [  427.369722] RIP: 0010:0xffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369723] RSP: 0018:ffffae3849b4fb08 EFLAGS: 00010202
Dec  9 15:49:54 gdOv kernel: [  427.369724] RAX: 0000000000000004 RBX: ffffae3849b4fb74 RCX: 0000000000000001
Dec  9 15:49:54 gdOv kernel: [  427.369725] RDX: 000000000000001d RSI: 0000000000000246 RDI: ffffae3849b4fc60
Dec  9 15:49:54 gdOv kernel: [  427.369726] RBP: ffffae3849b4ff10 R08: 0000000000000000 R09: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369727] R10: 0000000000000187 R11: ffff9fac9cce0f00 R12: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369728] R13: 0000000000000001 R14: 0000000000000000 R15: ffff9fac9d0a1d00
Dec  9 15:49:54 gdOv kernel: [  427.369730] FS:  00007fb78ed62040(0000) GS:ffff9facafc80000(0000) knlGS:0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369731] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 15:49:54 gdOv kernel: [  427.369732] CR2: ffffffff7d2370c0 CR3: 0000000320419000 CR4: 00000000000006e0
Dec  9 15:49:54 gdOv kernel: [  427.369733] Call Trace:
Dec  9 15:49:54 gdOv kernel: [  427.369735]  ? do_sys_poll+0x398/0x520
Dec  9 15:49:54 gdOv kernel: [  427.369738]  ? proc_destroy_inode+0x17/0x20
Dec  9 15:49:54 gdOv kernel: [  427.369740]  ? destroy_inode+0x36/0x50
Dec  9 15:49:54 gdOv kernel: [  427.369742]  ? evict+0x130/0x190
Dec  9 15:49:54 gdOv kernel: [  427.369745]  ? call_rcu_sched+0x12/0x20
Dec  9 15:49:54 gdOv kernel: [  427.369746]  ? dentry_free+0x33/0x70
Dec  9 15:49:54 gdOv kernel: [  427.369748]  ? __dentry_kill+0x110/0x150
Dec  9 15:49:54 gdOv kernel: [  427.369749]  ? dput.part.27+0x31/0x1d0
Dec  9 15:49:54 gdOv kernel: [  427.369751]  ? compat_poll_select_copy_remaining+0x130/0x130
Dec  9 15:49:54 gdOv kernel: [  427.369752]  ? call_rcu_sched+0x12/0x20
Dec  9 15:49:54 gdOv kernel: [  427.369756]  ? release_task+0x34b/0x480
Dec  9 15:49:54 gdOv kernel: [  427.369757]  ? wait_consider_task+0x834/0x8e0
Dec  9 15:49:54 gdOv kernel: [  427.369759]  ? do_wp_page+0x12f/0x470
Dec  9 15:49:54 gdOv kernel: [  427.369760]  ? __handle_mm_fault+0x3f8/0xc40
Dec  9 15:49:54 gdOv kernel: [  427.369762]  ? handle_mm_fault+0xbc/0x210
Dec  9 15:49:54 gdOv kernel: [  427.369765]  ? __do_page_fault+0x22d/0x470
Dec  9 15:49:54 gdOv kernel: [  427.369766]  SyS_poll+0x2b/0x130
Dec  9 15:49:54 gdOv kernel: [  427.369768]  ? do_page_fault+0x3a/0xf0
Dec  9 15:49:54 gdOv kernel: [  427.369770]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 15:49:54 gdOv kernel: [  427.369771] RIP: 0033:0x7fb78e55aa50
Dec  9 15:49:54 gdOv kernel: [  427.369772] RSP: 002b:00007ffce2a36868 EFLAGS: 00000246 ORIG_RAX: 0000000000000007
Dec  9 15:49:54 gdOv kernel: [  427.369774] RAX: ffffffffffffffda RBX: 000055b016b11740 RCX: 00007fb78e55aa50
Dec  9 15:49:54 gdOv kernel: [  427.369775] RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 00007ffce2a36880
Dec  9 15:49:54 gdOv kernel: [  427.369776] RBP: 00007ffce2a36974 R08: 0000000000000000 R09: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369777] R10: 0000000000000187 R11: 0000000000000246 R12: 000055b016b12868
Dec  9 15:49:54 gdOv kernel: [  427.369778] R13: 00007ffce2a36978 R14: 00007ffce2a36974 R15: 000055b016b11740
Dec  9 15:49:54 gdOv kernel: [  427.369779] Code:  Bad RIP value.
Dec  9 15:49:54 gdOv kernel: [  427.369782] RIP: 0xffffffff7d2370c0 RSP: ffffae3849b4fb08
Dec  9 15:49:54 gdOv kernel: [  427.369783] CR2: ffffffff7d2370c0
Dec  9 15:49:54 gdOv kernel: [  427.369785] ---[ end trace 605b3990f744c9b8 ]---
Dec  9 15:49:54 gdOv kernel: [  427.369785] BUG: unable to handle kernel NULL pointer dereference at 00000000000008d0
Dec  9 15:49:54 gdOv kernel: [  427.369794] IP: check_preempt_curr+0x28/0x90
Dec  9 15:49:54 gdOv kernel: [  427.369795] PGD 0 P4D 0 
Dec  9 15:49:54 gdOv kernel: [  427.369797] Oops: 0000 [#5] SMP
Dec  9 15:49:54 gdOv kernel: [  427.369799] CPU: 3 PID: 3388 Comm: Xorg Tainted: G      D         4.14.4171209-12 #2
Dec  9 15:49:54 gdOv kernel: [  427.369801] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./970 Extreme4, BIOS P2.60 11/11/2013
Dec  9 15:49:54 gdOv kernel: [  427.369802] task: ffff9faca0194480 task.stack: ffffae3849b3c000
Dec  9 15:49:54 gdOv kernel: [  427.369803] RIP: 0010:check_preempt_curr+0x28/0x90
Dec  9 15:49:54 gdOv kernel: [  427.369805] RSP: 0018:ffffae3849b3fb78 EFLAGS: 00010046
Dec  9 15:49:54 gdOv kernel: [  427.369806] RAX: ffff9facafd9a180 RBX: 0000000000000000 RCX: 00000000000000c3
Dec  9 15:49:54 gdOv kernel: [  427.369807] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffae3841d07ce0
Dec  9 15:49:54 gdOv kernel: [  427.369808] RBP: ffffae3849b3fbc8 R08: ffffae3841d07ce0 R09: ffffae3849b3fbe0
Dec  9 15:49:54 gdOv kernel: [  427.369809] R10: ffff9fac563cfa00 R11: ffff9faca0194480 R12: ffff9fac9cd91cc8
Dec  9 15:49:54 gdOv kernel: [  427.369810] R13: ffffae3849b3fbe0 R14: 000000009d28c300 R15: ffff9facafd9a168
Dec  9 15:49:54 gdOv kernel: [  427.369812] FS:  00007f7f9fc47a80(0000) GS:ffff9facafd80000(0000) knlGS:0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369813] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec  9 15:49:54 gdOv kernel: [  427.369814] CR2: 00000000000008d0 CR3: 00000003196ef000 CR4: 00000000000006e0
Dec  9 15:49:54 gdOv kernel: [  427.369814] Call Trace:
Dec  9 15:49:54 gdOv kernel: [  427.369817]  ? __wake_up_common+0x6d/0x160
Dec  9 15:49:54 gdOv kernel: [  427.369818]  __wake_up_common_lock+0x96/0xd0
Dec  9 15:49:54 gdOv kernel: [  427.369820]  __wake_up_sync_key+0x19/0x20
Dec  9 15:49:54 gdOv kernel: [  427.369821]  sock_def_readable+0x38/0x60
Dec  9 15:49:54 gdOv kernel: [  427.369823]  unix_stream_sendmsg+0x1fd/0x3a0
Dec  9 15:49:54 gdOv kernel: [  427.369825]  sock_write_iter+0x90/0xf0
Dec  9 15:49:54 gdOv kernel: [  427.369827]  do_iter_readv_writev+0xf9/0x150
Dec  9 15:49:54 gdOv kernel: [  427.369829]  do_iter_write+0x9b/0x1b0
Dec  9 15:49:54 gdOv kernel: [  427.369830]  vfs_writev+0x89/0x110
Dec  9 15:49:54 gdOv kernel: [  427.369832]  ? handle_mm_fault+0xbc/0x210
Dec  9 15:49:54 gdOv kernel: [  427.369836]  ? __do_page_fault+0x22d/0x470
Dec  9 15:49:54 gdOv kernel: [  427.369837]  do_writev+0x67/0x100
Dec  9 15:49:54 gdOv kernel: [  427.369838]  SyS_writev+0xb/0x10
Dec  9 15:49:54 gdOv kernel: [  427.369840]  entry_SYSCALL_64_fastpath+0x13/0x94
Dec  9 15:49:54 gdOv kernel: [  427.369841] RIP: 0033:0x7f7f9d0e769d
Dec  9 15:49:54 gdOv kernel: [  427.369842] RSP: 002b:00007ffe59843b90 EFLAGS: 00003293 ORIG_RAX: 0000000000000014
Dec  9 15:49:54 gdOv kernel: [  427.369844] RAX: ffffffffffffffda RBX: 0000556b348ca370 RCX: 00007f7f9d0e769d
Dec  9 15:49:54 gdOv kernel: [  427.369845] RDX: 0000000000000001 RSI: 00007ffe59843e70 RDI: 000000000000001c
Dec  9 15:49:54 gdOv kernel: [  427.369846] RBP: 00007f7f9d3a0b00 R08: 0000000000000001 R09: 0000556b346c4ea0
Dec  9 15:49:54 gdOv kernel: [  427.369847] R10: 0000000000000008 R11: 0000000000003293 R12: 0000000000000000
Dec  9 15:49:54 gdOv kernel: [  427.369848] R13: 0000000000000220 R14: 0000556b348ca590 R15: 0000000000000030
Dec  9 15:49:54 gdOv kernel: [  427.369849] Code: 00 00 00 55 48 8b 8e 98 00 00 00 48 89 e5 53 48 89 fb 48 8b bf d0 08 00 00 4c 8b 87 98 00 00 00 4c 39 c1 75 29 48 89 df ff 51 28 <48> 8b bb d0 08 00 00 83 bf 84 00 00 00 01 74 03 5b 5d c3 48 8b 
Dec  9 15:49:54 gdOv kernel: [  427.369868] RIP: check_preempt_curr+0x28/0x90 RS
Dec  9 15:49:54 gdOv kernel: [  427.369869] CR2: 00000000000008d0
Dec  9 15:49:54 gdOv kernel: [  427.369870] ---[ end trace 605b3990f744c9b9 ]---
Dec  9 15:49:54 gdOv kernel: [  427.379206] bash (3489) used greatest stack dept

By the way, with 4.9.67 grsec-unoff patched, still no more crashes... Load-running tasks on it as I write...

[miroR]

As far as tor that I suspected might be involved because of the OpenSSL header-mismatch as in https://github.com/minipli/linux-unofficial_grsec/issues/20#issuecomment-350208705 (and the bug that I opened in https://trac.torproject.org/projects/tor/ticket/24564 asking Tor devs about it --no replies so far): Tor is running again, all the time:

# /etc/init.d/tor status
[ ok ] tor is running.
#

Again, with 4.9.67 grsec-unoff patched, still no more crashes.

[miroR]

I'm browsing with the "all-modules-for-all-systems" kernel, which I offer for the brave at:

https://croatiafidelis.hr/gnu/deb/linux-image-4.9.67-grsecunoff-171209-20/

[minipli]

I'm sorry, I have to close this one. You're mixing up multiple bugs here which makes this a mess to follow.

The initial bug -- the NULL pointer deref in do_blockdev_direct_IO() -- is interesting. The kernel crashes while trying to execute some binary -- presumably some filter program executed by tshark. You even managed to reproduce the bug in comment #10. Again the very same NULL deref, triggered by tshark.

The next bug -- a general protection fault in vma_wants_writenotify() -- is interesting too. It's interesting because the instruction that traps tries to dereference the memory location pointed by the RAX register. Looking at RAX, it's 0xff8803194de000ff. That's indeed a non-canonical address, as its uppermost 16 bits are neither all 0 or all 1. That explains the #GP. However, if you rotate that value by 8 bit to the right, it'll look like a valid kernel address... Confusing, I know, but just some thoughts about the bug.

A few comments later you hit a bug with a NULL pointer deref related to a spin lock within the UNIX domain sockets code. That was on vanilla Linux v4.14, though. So nothing to look at (yet).

After that another invalid pointer deref is posted. This time without frame pointers so the backtrace is unreliable. However, it's a code pointer that traps, e.g. the kernel branched off the control flow to an invalid address. Very odd -- and bad! But, again, this was on vanilla Linux, so nothing to worry about (yet).

Also, the i2c error message is hardly related to the panic. It happens almost 5 minutes before the panic and is just some diagnostic message that some i2c command has failed. Nothing to worry about.

That mentioning of tor later on makes no sense to me whatsoever....

Anyways, that's at least four different (kernel) bugs. I guess we can ignore the last two for the moment (though, you should report them to LKML as they are, apparently, upstream bugs). For the others: There have been some fixes to the block layer in later versions, so could you please try to reproduce the relevant bugs (with tshark?) on a recent version and, if you can, open new issues -- one for each bug you hit?

But just one more thought: All of your reports hint at memory related issues. Are you overclocking / overvolting your system? Or is the CPU overheating? Could you run a memory stress test like memtest86 on those systems? Those addresses and call traces just look too odd, so memory problems might be the real issue here.

[miroR]

But just one more thought: All of your reports hint at memory related issues. Are you overclocking / overvolting your system?

No, I'm not. (Related somewhat, old MBO firmware I have, as @HacKurx reported somewhere in my six report of which one is this, but I want more info on those... What if some PSP was enhanced, than I'm better of with the old MBO firmware, but where do I learn about those? Sorry!)

Or is the CPU overheating? Could you run a memory stress test like memtest86 on those systems? Those addresses and call traces just look too odd, so memory problems might be the real issue here.

I will. As soon as I'm done with some other work. (Also: will study your new posts to my best, then. Thanks!)

[miroR]

Or is the CPU overheating? Could you run a memory stress test like memtest86 on those systems? Those addresses and call traces just look too odd, so memory problems might be the real issue here.

I will.

Just for completeness, about that I reported in the open bug where the above post by minipli was referenced:

https://github.com/minipli/linux-unofficial_grsec/issues/19#issuecomment-354361175

And the reply to this part

Are you overclocking / overvolting your system?

is explicitly: No! No means for new systems very often at all, I can't afford experimenting with overclocking / overvolting.

Thanks again, @minipli !