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Message #33544
[Bug 1851380] Re: root can lift kernel lockdown
This bug was fixed in the package linux - 5.0.0-37.40
---------------
linux (5.0.0-37.40) disco; urgency=medium
* disco/linux: 5.0.0-37.40 -proposed tracker (LP: #1852253)
* System hangs at early boot (LP: #1851216)
- x86/timer: Skip PIT initialization on modern chipsets
* drm/i915: Add support for another CMP-H PCH (LP: #1848491)
- drm/i915/cml: Add second PCH ID for CMP
* Some EFI systems fail to boot in efi_init() when booted via maas
(LP: #1851810)
- efi: efi_get_memory_map -- increase map headroom
* seccomp: fix SECCOMP_USER_NOTIF_FLAG_CONTINUE test (LP: #1849281)
- SAUCE: seccomp: avoid overflow in implicit constant conversion
- SAUCE: seccomp: rework define for SECCOMP_USER_NOTIF_FLAG_CONTINUE
- SAUCE: seccomp: fix SECCOMP_USER_NOTIF_FLAG_CONTINUE test
* dkms artifacts may expire from the pool (LP: #1850958)
- [Packaging] dkms -- try launchpad librarian for pool downloads
- [Packaging] dkms -- dkms-build quieten wget verbiage
* update ENA driver to version 2.1.0 (LP: #1850175)
- net: ena: fix swapped parameters when calling
ena_com_indirect_table_fill_entry
- net: ena: fix: Free napi resources when ena_up() fails
- net: ena: fix incorrect test of supported hash function
- net: ena: fix return value of ena_com_config_llq_info()
- net: ena: improve latency by disabling adaptive interrupt moderation by
default
- net: ena: fix ena_com_fill_hash_function() implementation
- net: ena: add handling of llq max tx burst size
- net: ena: ethtool: add extra properties retrieval via get_priv_flags
- net: ena: replace free_tx/rx_ids union with single free_ids field in
ena_ring
- net: ena: arrange ena_probe() function variables in reverse christmas tree
- net: ena: add newline at the end of pr_err prints
- net: ena: documentation: update ena.txt
- net: ena: allow automatic fallback to polling mode
- net: ena: add support for changing max_header_size in LLQ mode
- net: ena: optimise calculations for CQ doorbell
- net: ena: add good checksum counter
- net: ena: use dev_info_once instead of static variable
- net: ena: add MAX_QUEUES_EXT get feature admin command
- net: ena: enable negotiating larger Rx ring size
- net: ena: make ethtool show correct current and max queue sizes
- net: ena: allow queue allocation backoff when low on memory
- net: ena: add ethtool function for changing io queue sizes
- net: ena: remove inline keyword from functions in *.c
- net: ena: update driver version from 2.0.3 to 2.1.0
- net: ena: Fix bug where ring allocation backoff stopped too late
- Revert "net: ena: ethtool: add extra properties retrieval via
get_priv_flags"
- net: ena: don't wake up tx queue when down
- net: ena: clean up indentation issue
* Add Intel Comet Lake ethernet support (LP: #1848555)
- SAUCE: e1000e: Add support for Comet Lake
* Intel Wireless AC 3168 on Eoan complaints FW error in SYNC CMD
GEO_TX_POWER_LIMIT (LP: #1846016)
- iwlwifi: exclude GEO SAR support for 3168
* tsc marked unstable after entered PC10 on Intel CoffeeLake (LP: #1840239)
- SAUCE: x86/intel: Disable HPET on Intel Coffe Lake platforms
- SAUCE: x86/intel: Disable HPET on Intel Ice Lake platforms
* cloudimg: no iavf/i40evf module so no network available with SR-IOV enabled
cloud (LP: #1848481)
- [Packaging] include iavf/i40evf in generic
* High power consumption using 5.0.0-25-generic (LP: #1840835)
- PCI: Add a helper to check Power Resource Requirements _PR3 existence
- ALSA: hda: Allow HDA to be runtime suspended when dGPU is not bound to a
driver
- PCI: Fix missing inline for pci_pr3_present()
* CML CPUIDs (LP: #1843794)
- x86/cpu: Add Comet Lake to the Intel CPU models header
* shiftfs: prevent exceeding project quotas (LP: #1849483)
- SAUCE: shiftfs: drop CAP_SYS_RESOURCE from effective capabilities
* shiftfs: fix fallocate() (LP: #1849482)
- SAUCE: shiftfs: setup correct s_maxbytes limit
* Bluetooth: hidp: Fix assumptions on the return value of hidp_send_message
(LP: #1850443)
- Bluetooth: hidp: Fix assumptions on the return value of hidp_send_message
* [SRU][B/OEM-B/OEM-OSP1/D/E] UBUNTU: SAUCE: add rtl623 codec support and fix
mic issues (LP: #1850599)
- SAUCE: ALSA: hda/realtek - Add support for ALC623
- SAUCE: ALSA: hda/realtek - Fix 2 front mics of codec 0x623
* NFSv4.1: Interrupted connections cause high bandwidth RPC ping-pong between
client and server (LP: #1828978)
- NFSv4.1: Avoid false retries when RPC calls are interrupted
* SUNRPC: Use after free when GSSD credentials are invalid causes oops
(LP: #1842037)
- SUNRPC: Clean up
- SUNRPC: Fix a use after free when a server rejects the RPCSEC_GSS credential
* Suppress "hid_field_extract() called with n (192) > 32!" message floods
(LP: #1850600)
- HID: core: reformat and reduce hid_printk macros
- HID: core: Add printk_once variants to hid_warn() etc
- HID: core: fix dmesg flooding if report field larger than 32bit
* ubuntu-aufs-modified mmap_region() breaks refcounting in overlayfs/shiftfs
error path (LP: #1850994) // CVE-2019-15794
- SAUCE: shiftfs: Restore vm_file value when lower fs mmap fails
- SAUCE: ovl: Restore vm_file value when lower fs mmap fails
* s_iflags overlap prevents unprivileged overlayfs mounts (LP: #1851677)
- SAUCE: fs: Move SB_I_NOSUID to the top of s_iflags
* root can lift kernel lockdown (LP: #1851380)
- SAUCE: (efi-lockdown) Really don't allow lifting lockdown from userspace
* Disco update: upstream stable patchset 2019-11-01 (LP: #1850974)
- panic: ensure preemption is disabled during panic()
- f2fs: use EINVAL for superblock with invalid magic
- [Config] updateconfigs for USB_RIO500
- USB: rio500: Remove Rio 500 kernel driver
- USB: yurex: Don't retry on unexpected errors
- USB: yurex: fix NULL-derefs on disconnect
- USB: usb-skeleton: fix runtime PM after driver unbind
- USB: usb-skeleton: fix NULL-deref on disconnect
- xhci: Fix false warning message about wrong bounce buffer write length
- xhci: Prevent device initiated U1/U2 link pm if exit latency is too long
- xhci: Check all endpoints for LPM timeout
- xhci: Fix USB 3.1 capability detection on early xHCI 1.1 spec based hosts
- usb: xhci: wait for CNR controller not ready bit in xhci resume
- xhci: Prevent deadlock when xhci adapter breaks during init
- USB: adutux: fix use-after-free on disconnect
- USB: adutux: fix NULL-derefs on disconnect
- USB: adutux: fix use-after-free on release
- USB: iowarrior: fix use-after-free on disconnect
- USB: iowarrior: fix use-after-free on release
- USB: iowarrior: fix use-after-free after driver unbind
- USB: usblp: fix runtime PM after driver unbind
- USB: chaoskey: fix use-after-free on release
- USB: ldusb: fix NULL-derefs on driver unbind
- serial: uartlite: fix exit path null pointer
- USB: serial: keyspan: fix NULL-derefs on open() and write()
- USB: serial: ftdi_sio: add device IDs for Sienna and Echelon PL-20
- USB: serial: option: add Telit FN980 compositions
- USB: serial: option: add support for Cinterion CLS8 devices
- USB: serial: fix runtime PM after driver unbind
- USB: usblcd: fix I/O after disconnect
- USB: microtek: fix info-leak at probe
- USB: dummy-hcd: fix power budget for SuperSpeed mode
- usb: renesas_usbhs: gadget: Do not discard queues in
usb_ep_set_{halt,wedge}()
- usb: renesas_usbhs: gadget: Fix usb_ep_set_{halt,wedge}() behavior
- USB: legousbtower: fix slab info leak at probe
- USB: legousbtower: fix deadlock on disconnect
- USB: legousbtower: fix potential NULL-deref on disconnect
- USB: legousbtower: fix open after failed reset request
- USB: legousbtower: fix use-after-free on release
- mei: me: add comet point (lake) LP device ids
- mei: avoid FW version request on Ibex Peak and earlier
- gpio: eic: sprd: Fix the incorrect EIC offset when toggling
- Staging: fbtft: fix memory leak in fbtft_framebuffer_alloc
- staging: vt6655: Fix memory leak in vt6655_probe
- iio: adc: hx711: fix bug in sampling of data
- iio: adc: ad799x: fix probe error handling
- iio: adc: axp288: Override TS pin bias current for some models
- iio: light: opt3001: fix mutex unlock race
- efivar/ssdt: Don't iterate over EFI vars if no SSDT override was specified
- perf llvm: Don't access out-of-scope array
- perf inject jit: Fix JIT_CODE_MOVE filename
- CIFS: Gracefully handle QueryInfo errors during open
- CIFS: Force revalidate inode when dentry is stale
- CIFS: Force reval dentry if LOOKUP_REVAL flag is set
- kernel/sysctl.c: do not override max_threads provided by userspace
- mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
- firmware: google: increment VPD key_len properly
- gpiolib: don't clear FLAG_IS_OUT when emulating open-drain/open-source
- iio: adc: stm32-adc: move registers definitions
- iio: adc: stm32-adc: fix a race when using several adcs with dma and irq
- cifs: use cifsInodeInfo->open_file_lock while iterating to avoid a panic
- btrfs: fix incorrect updating of log root tree
- btrfs: fix uninitialized ret in ref-verify
- NFS: Fix O_DIRECT accounting of number of bytes read/written
- MIPS: Disable Loongson MMI instructions for kernel build
- MIPS: elf_hwcap: Export userspace ASEs
- ACPI/PPTT: Add support for ACPI 6.3 thread flag
- arm64: topology: Use PPTT to determine if PE is a thread
- Fix the locking in dcache_readdir() and friends
- media: stkwebcam: fix runtime PM after driver unbind
- arm64/sve: Fix wrong free for task->thread.sve_state
- tracing/hwlat: Report total time spent in all NMIs during the sample
- tracing/hwlat: Don't ignore outer-loop duration when calculating max_latency
- ftrace: Get a reference counter for the trace_array on filter files
- tracing: Get trace_array reference for available_tracers files
- hwmon: Fix HWMON_P_MIN_ALARM mask
- x86/asm: Fix MWAITX C-state hint value
- perf/hw_breakpoint: Fix arch_hw_breakpoint use-before-initialization
- serial: uartps: Fix uartps_major handling
- usb: typec: tcpm: usb: typec: tcpm: Fix a signedness bug in
tcpm_fw_get_caps()
- staging: bcm2835-audio: Fix draining behavior regression
- staging: rtl8188eu: fix HighestRate check in odm_ARFBRefresh_8188E()
- iio: accel: adxl372: Fix/remove limitation for FIFO samples
- iio: accel: adxl372: Fix push to buffers lost samples
- iio: accel: adxl372: Perform a reset at start up
- selinux: fix context string corruption in convert_context()
- mm/z3fold.c: claim page in the beginning of free
- mm/page_alloc.c: fix a crash in free_pages_prepare()
- gpio: fix getting nonexclusive gpiods from DT
- btrfs: fix balance convert to single on 32-bit host CPUs
- Btrfs: fix memory leak due to concurrent append writes with fiemap
- RDMA/vmw_pvrdma: Free SRQ only once
- drm/i915: Whitelist COMMON_SLICE_CHICKEN2
- mtd: rawnand: au1550nd: Fix au_read_buf16() prototype
* Suspend stopped working from 4.4.0-157 onwards (LP: #1844021) // Disco
update: upstream stable patchset 2019-11-01 (LP: #1850974)
- xhci: Increase STS_SAVE timeout in xhci_suspend()
* Disco update: upstream stable patchset 2019-10-31 (LP: #1850870)
- s390/process: avoid potential reading of freed stack
- KVM: s390: Test for bad access register and size at the start of S390_MEM_OP
- s390/topology: avoid firing events before kobjs are created
- s390/cio: exclude subchannels with no parent from pseudo check
- KVM: PPC: Book3S HV: Fix race in re-enabling XIVE escalation interrupts
- KVM: PPC: Book3S HV: Check for MMU ready on piggybacked virtual cores
- KVM: PPC: Book3S HV: Don't lose pending doorbell request on migration on P9
- KVM: X86: Fix userspace set invalid CR4
- nbd: fix max number of supported devs
- PM / devfreq: tegra: Fix kHz to Hz conversion
- ASoC: Define a set of DAPM pre/post-up events
- ASoC: sgtl5000: Improve VAG power and mute control
- powerpc/mce: Fix MCE handling for huge pages
- powerpc/mce: Schedule work from irq_work
- powerpc/powernv: Restrict OPAL symbol map to only be readable by root
- powerpc/powernv/ioda: Fix race in TCE level allocation
- powerpc/book3s64/mm: Don't do tlbie fixup for some hardware revisions
- can: mcp251x: mcp251x_hw_reset(): allow more time after a reset
- tools lib traceevent: Fix "robust" test of do_generate_dynamic_list_file
- crypto: qat - Silence smp_processor_id() warning
- crypto: skcipher - Unmap pages after an external error
- crypto: cavium/zip - Add missing single_release()
- crypto: caam - fix concurrency issue in givencrypt descriptor
- crypto: ccree - account for TEE not ready to report
- crypto: ccree - use the full crypt length value
- MIPS: Treat Loongson Extensions as ASEs
- power: supply: sbs-battery: use correct flags field
- power: supply: sbs-battery: only return health when battery present
- tracing: Make sure variable reference alias has correct var_ref_idx
- usercopy: Avoid HIGHMEM pfn warning
- timer: Read jiffies once when forwarding base clk
- PCI: vmd: Fix shadow offsets to reflect spec changes
- watchdog: imx2_wdt: fix min() calculation in imx2_wdt_set_timeout
- perf stat: Fix a segmentation fault when using repeat forever
- drm/omap: fix max fclk divider for omap36xx
- drm/msm/dsi: Fix return value check for clk_get_parent
- drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors
- drm/i915/gvt: update vgpu workload head pointer correctly
- mmc: sdhci: improve ADMA error reporting
- mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
- Revert "locking/pvqspinlock: Don't wait if vCPU is preempted"
- xen/xenbus: fix self-deadlock after killing user process
- ieee802154: atusb: fix use-after-free at disconnect
- s390/cio: avoid calling strlen on null pointer
- cfg80211: initialize on-stack chandefs
- ima: always return negative code for error
- ima: fix freeing ongoing ahash_request
- fs: nfs: Fix possible null-pointer dereferences in encode_attrs()
- 9p: Transport error uninitialized
- 9p: avoid attaching writeback_fid on mmap with type PRIVATE
- xen/pci: reserve MCFG areas earlier
- ceph: fix directories inode i_blkbits initialization
- ceph: reconnect connection if session hang in opening state
- watchdog: aspeed: Add support for AST2600
- netfilter: nf_tables: allow lookups in dynamic sets
- drm/amdgpu: Fix KFD-related kernel oops on Hawaii
- drm/amdgpu: Check for valid number of registers to read
- pNFS: Ensure we do clear the return-on-close layout stateid on fatal errors
- pwm: stm32-lp: Add check in case requested period cannot be achieved
- x86/purgatory: Disable the stackleak GCC plugin for the purgatory
- ntb: point to right memory window index
- thermal: Fix use-after-free when unregistering thermal zone device
- thermal_hwmon: Sanitize thermal_zone type
- libnvdimm/region: Initialize bad block for volatile namespaces
- fuse: fix memleak in cuse_channel_open
- libnvdimm/nfit_test: Fix acpi_handle redefinition
- sched/membarrier: Call sync_core only before usermode for same mm
- sched/membarrier: Fix private expedited registration check
- sched/core: Fix migration to invalid CPU in __set_cpus_allowed_ptr()
- perf build: Add detection of java-11-openjdk-devel package
- kernel/elfcore.c: include proper prototypes
- perf unwind: Fix libunwind build failure on i386 systems
- nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs
- drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed
- KVM: PPC: Book3S HV: XIVE: Free escalation interrupts before disabling the
VP
- KVM: nVMX: Fix consistency check on injected exception error code
- nbd: fix crash when the blksize is zero
- powerpc/pseries: Fix cpu_hotplug_lock acquisition in resize_hpt()
- powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
- tools lib traceevent: Do not free tep->cmdlines in add_new_comm() on failure
- tick: broadcast-hrtimer: Fix a race in bc_set_next
- perf tools: Fix segfault in cpu_cache_level__read()
- perf stat: Reset previous counts on repeat with interval
- riscv: Avoid interrupts being erroneously enabled in handle_exception()
- arm64: Add sysfs vulnerability show for spectre-v1
- arm64: add sysfs vulnerability show for meltdown
- arm64: enable generic CPU vulnerabilites support
- arm64: Always enable ssb vulnerability detection
- arm64: Provide a command line to disable spectre_v2 mitigation
- arm64: Advertise mitigation of Spectre-v2, or lack thereof
- arm64: Always enable spectre-v2 vulnerability detection
- arm64: add sysfs vulnerability show for spectre-v2
- arm64: add sysfs vulnerability show for speculative store bypass
- arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
- arm64: Use firmware to detect CPUs that are not affected by Spectre-v2
- arm64/speculation: Support 'mitigations=' cmdline option
- vfs: Fix EOVERFLOW testing in put_compat_statfs64
- coresight: etm4x: Use explicit barriers on enable/disable
- staging: erofs: fix an error handling in erofs_readdir()
- staging: erofs: some compressed cluster should be submitted for corrupted
images
- staging: erofs: add two missing erofs_workgroup_put for corrupted images
- staging: erofs: detect potential multiref due to corrupted images
- cfg80211: add and use strongly typed element iteration macros
- cfg80211: Use const more consistently in for_each_element macros
- nl80211: validate beacon head
- KVM: s390: fix __insn32_query() inline assembly
- crypto: caam/qi - fix error handling in ERN handler
- PCI: vmd: Fix config addressing when using bus offsets
- drm/atomic: Reject FLIP_ASYNC unconditionally
- drm/atomic: Take the atomic toys away from X
- drm/i915: to make vgpu ppgtt notificaiton as atomic operation
- mac80211: keep BHs disabled while calling drv_tx_wake_queue()
- mmc: tegra: Implement ->set_dma_mask()
- mmc: sdhci: Let drivers define their DMA mask
- libnvdimm/altmap: Track namespace boundaries in altmap
- DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
- xprtrdma: Toggle XPRT_CONGESTED in xprtrdma's slot methods
- fuse: fix request limit
- ceph: fetch cap_gen under spinlock in ceph_add_cap
- perf probe: Fix to clear tev->nargs in clear_probe_trace_event()
- selftests/seccomp: fix build on older kernels
- iommu/amd: Fix downgrading default page-sizes in alloc_pte()
- bpf: Fix bpf_event_output re-entry issue
- i2c: qcom-geni: Disable DMA processing on the Lenovo Yoga C630
- mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions
- nfp: abm: fix memory leak in nfp_abm_u32_knode_replace
- Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
- libnvdimm: prevent nvdimm from requesting key when security is disabled
-- Connor Kuehl <connor.kuehl@xxxxxxxxxxxxx> Wed, 13 Nov 2019 11:35:47
-0800
** Changed in: linux (Ubuntu Disco)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-15794
--
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https://bugs.launchpad.net/bugs/1851380
Title:
root can lift kernel lockdown
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Invalid
Status in linux source package in Bionic:
Fix Committed
Status in linux source package in Disco:
Fix Released
Status in linux source package in Eoan:
Fix Released
Status in linux source package in Focal:
In Progress
Bug description:
SRU Justification
Impact: The kernel lockdown support adds a sysrq to allow a physically
present user to disable lockdown from the keyboard. A bug in the
implementation makes it possible to also lift lockdown by writing to
/proc/sysrq-trigger.
Fix: Correct the logic to disallow disabling lockdown via /proc/sysrq-
trigger.
Test Case: Write "x" to /proc/sysrq-trigger. When working properly
there should be no messages in dmesg about lifting lockdown, and
lockdown restrictions (e.g. loading unsigned modules) should remain in
effect.
Regression Potential: Anyone using /proc/sysrq-trigger to disable
lockdown will no longer be able to do so. Implementation bugs could
prevent use of the sysrq from the keyboard from disabling lockdown,
but this has been confrimed to still work with the fix in place.
---
Echoing "x" into /proc/sysrq-trigger disables kernel lockdown, even
though it shouldn't.
If I'm not mistaken, kernel lockdown is meant to create a barrier
between root and the kernel that can only be broken with physical
access to the system. It is automatically enabled when the system is
booted with UEFI Secure Boot, which is the case for me.
This should show the bug:
# echo "x" > /proc/sysrq-trigger
Nov 05 14:58:15 panzersperre kernel: sysrq: SysRq :
Nov 05 14:58:15 panzersperre kernel: This sysrq operation is disabled from userspace.
Nov 05 14:58:15 panzersperre kernel: Disabling Secure Boot restrictions
Nov 05 14:58:15 panzersperre kernel: Lifting lockdown
Note that it first says that the operation is disabled and then performs this operation.
This should only be possible by physically pressing sysrq+x on an attached keyboard.
I'm doing this on 4.15.0-68-generic on Ubuntu 18.04.3 LTS.
I have kernel.sysrq set to 1 - this is important to be able to trigger this bug. (But I don't think it disqualifies this issue as non-security relevant because root can trivially execute `sysctl kernel.sysrq=1`.)
I first learned about this by reading a blog post
(https://gehrcke.de/2019/09/running-an-ebpf-program-may-require-
lifting-the-kernel-lockdown/), so I'm not the first to notice this
behavior (even though this post doesn't say it's a bug).
Looking through drivers/tty/sysrq.c, I guess the problem is caused by
this if condition in __handle_sysrq:
554 │ /* Ban synthetic events from some sysrq functionality */
555 │ if ((from == SYSRQ_FROM_PROC || from == SYSRQ_FROM_SYNTHETIC) &&
556 │ op_p->enable_mask & SYSRQ_DISABLE_USERSPACE)
557 │ printk("This sysrq operation is disabled from userspace.\n");
558 │ /*
559 │ * Should we check for enabled operations (/proc/sysrq-trigger
560 │ * should not) and is the invoked operation enabled?
561 │ */
562 │ if (from == SYSRQ_FROM_KERNEL || sysrq_on_mask(op_p->enable_mask)) {
563 │ pr_cont("%s\n", op_p->action_msg);
564 │ console_loglevel = orig_log_level;
565 │ op_p->handler(key);
566 │ } else {
567 │ pr_cont("This sysrq operation is disabled.\n");
568 │ }
Note that `op_p->enable_mask & SYSRQ_DISABLE_USERSPACE` just causes a
printk and no change of behavior.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-68-generic 4.15.0-68.77
ProcVersionSignature: Ubuntu 4.15.0-68.77-generic 4.15.18
Uname: Linux 4.15.0-68-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: niklas 2442 F.... pulseaudio
/dev/snd/controlC0: niklas 2442 F.... pulseaudio
CurrentDesktop: KDE
Date: Tue Nov 5 14:58:33 2019
InstallationDate: Installed on 2015-12-11 (1424 days ago)
InstallationMedia: Kubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: LENOVO 20E8S00600
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-68-generic root=UUID=67485aa6-c665-4c53-bf41-328307d0cbf0 ro rootflags=subvol=@ quiet splash kaslr i915.alpha_support=1 vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-68-generic N/A
linux-backports-modules-4.15.0-68-generic N/A
linux-firmware 1.173.11
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-07-05 (487 days ago)
dmi.bios.date: 09/26/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: JHET69WW (1.69 )
dmi.board.asset.tag: Not Available
dmi.board.name: Intel powered classmate PC
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrJHET69WW(1.69):bd09/26/2018:svnLENOVO:pn20E8S00600:pvrThinkPad11e:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad 11e
dmi.product.name: 20E8S00600
dmi.product.version: ThinkPad 11e
dmi.sys.vendor: LENOVO
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