CVE-2019-18660: patches for Ubuntu

Bug #1853142 reported by Daniel Axtens on 2019-11-19
264
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Status tracked in Focal
Xenial
Undecided
Ben Romer
Bionic
Undecided
Ben Romer
Disco
Undecided
Ben Romer
Eoan
Undecided
Ben Romer
Focal
Undecided
Unassigned

Bug Description

Hi,

Recently you would have been notified about CVE-2019-18660 via email to the linux-distros private mailing list. In short, it is a bug in the Spectre v2 class affecting powerpc.

We have developed some backports for supported Ubuntu kernels, and tested them in our lab. I will attach the patches shortly. Most of them should end up being identical to the versions in linux-stable, but the ones for Bionic are slightly different due to it using a 4.15 kernel.

Please get in touch with me or Michael Ellerman (powerpc maintainer) if you have any questions or if we can be of any assistance.

Kind regards,
Daniel

Daniel Axtens (daxtens) wrote :
Tyler Hicks (tyhicks) on 2019-11-20
Changed in linux (Ubuntu):
status: New → Triaged
Tyler Hicks (tyhicks) on 2019-11-20
Changed in linux (Ubuntu Eoan):
assignee: nobody → Ben Romer (bromer)
Changed in linux (Ubuntu Disco):
assignee: nobody → Ben Romer (bromer)
Changed in linux (Ubuntu Bionic):
assignee: nobody → Ben Romer (bromer)
Changed in linux (Ubuntu Xenial):
assignee: nobody → Ben Romer (bromer)
status: New → Triaged
Changed in linux (Ubuntu Bionic):
status: New → Triaged
Changed in linux (Ubuntu Disco):
status: New → Triaged
Changed in linux (Ubuntu Eoan):
status: New → Triaged
Daniel Axtens (daxtens) wrote :

The embargo has expired so I'm making this public now.

description: updated
information type: Private Security → Public Security
Changed in linux (Ubuntu Bionic):
status: Triaged → Fix Committed
Changed in linux (Ubuntu Xenial):
status: Triaged → Fix Committed
Changed in linux (Ubuntu Disco):
status: Triaged → Fix Committed
Changed in linux (Ubuntu Eoan):
status: Triaged → Fix Committed

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-disco' to 'verification-done-disco'. If the problem still exists, change the tag 'verification-needed-disco' to 'verification-failed-disco'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-disco
tags: added: verification-needed-bionic

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed-xenial'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-xenial

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-eoan' to 'verification-done-eoan'. If the problem still exists, change the tag 'verification-needed-eoan' to 'verification-failed-eoan'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-eoan
Daniel Axtens (daxtens) wrote :

My colleague has verified all 4 versions. In all cases, on supported hardware, the test now operates as expected: the secret does not leak unless the mitigation is manually turned off.

I notice the SRU verification is happening a bit sooner than I expected - when do you expect these kernels to be released?

tags: added: verification-done-bionic verification-done-disco verification-done-eoan verification-done-xenial
removed: verification-needed-bionic verification-needed-disco verification-needed-eoan verification-needed-xenial
Launchpad Janitor (janitor) wrote :
Download full text (27.4 KiB)

This bug was fixed in the package linux - 5.3.0-26.28

---------------
linux (5.3.0-26.28) eoan; urgency=medium

  * eoan/linux: 5.3.0-26.28 -proposed tracker (LP: #1856807)

  * nvidia-435 is in eoan, linux-restricted-modules only builds against 430,
    ubiquity gives me the self-signed modules experience instead of using the
    Canonical-signed modules (LP: #1856407)
    - Add nvidia-435 dkms build

linux (5.3.0-25.27) eoan; urgency=medium

  * eoan/linux: 5.3.0-25.27 -proposed tracker (LP: #1854762)

  * CVE-2019-14901
    - SAUCE: mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()

  * CVE-2019-14896 // CVE-2019-14897
    - SAUCE: libertas: Fix two buffer overflows at parsing bss descriptor

  * CVE-2019-14895
    - SAUCE: mwifiex: fix possible heap overflow in mwifiex_process_country_ie()

  * [CML] New device id's for CMP-H (LP: #1846335)
    - mmc: sdhci-pci: Add another Id for Intel CML
    - i2c: i801: Add support for Intel Comet Lake PCH-H
    - mtd: spi-nor: intel-spi: Add support for Intel Comet Lake-H SPI serial flash
    - mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDs

  * i915: Display flickers (monitor loses signal briefly) during "flickerfree"
    boot, while showing the BIOS logo on a black background (LP: #1836858)
    - [Config] FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y

  * Please add patch fixing RK818 ID detection (LP: #1853192)
    - SAUCE: mfd: rk808: Fix RK818 ID template

  * Kernel build log filled with "/bin/bash: line 5: warning: command
    substitution: ignored null byte in input" (LP: #1853843)
    - [Debian] Fix warnings when checking for modules signatures

  * Lenovo dock MAC Address pass through doesn't work in Ubuntu (LP: #1827961)
    - r8152: Add macpassthru support for ThinkPad Thunderbolt 3 Dock Gen 2

  * Dell XPS 13 9350/9360 headphone audio hiss (LP: #1654448) // [XPS 13 9360,
    Realtek ALC3246, Black Headphone Out, Front] High noise floor (LP: #1845810)
    - ALSA: hda/realtek: Reduce the Headphone static noise on XPS 9350/9360

  * no HDMI video output since GDM greeter after linux-oem-osp1 version
    5.0.0-1026 (LP: #1852386)
    - drm/i915: Add new CNL PCH ID seen on a CML platform
    - SAUCE: drm/i915: Fix detection for a CMP-V PCH

  * [broadwell-rt286, playback] Since Linux 5.2rc2 audio playback no longer
    works on Dell Venue 11 Pro 7140 (LP: #1846539)
    - [Config] Drop snd-sof-intel-bdw build
    - SAUCE: ASoC: SOF: Intel: Broadwell: clarify mutual exclusion with legacy
      driver

  * [CML-S62] Need enable turbostat patch support for Comet lake- S 6+2
    (LP: #1847451)
    - SAUCE: tools/power turbostat: Add Cometlake support

  * External microphone can't work on some dell machines with the codec alc256
    or alc236 (LP: #1853791)
    - SAUCE: ALSA: hda/realtek - Move some alc256 pintbls to fallback table
    - SAUCE: ALSA: hda/realtek - Move some alc236 pintbls to fallback table

  * Memory leak in net/xfrm/xfrm_state.c - 8 pages per ipsec connection
    (LP: #1853197)
    - xfrm: Fix memleak on xfrm state destroy

  * CVE-2019-18660: patches for Ubuntu (LP: #1853142) // CVE-2019-18660
    - powerpc/64s: support nospectre_v2 cmdline option
    - powerp...

Changed in linux (Ubuntu Eoan):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :
Download full text (42.3 KiB)

This bug was fixed in the package linux - 5.0.0-38.41

---------------
linux (5.0.0-38.41) disco; urgency=medium

  * disco/linux: 5.0.0-38.41 -proposed tracker (LP: #1854788)

  * [Regression] Failed to boot disco kernel built from master-next (kernel
    kernel NULL pointer dereference) (LP: #1853981)
    - SAUCE: blk-mq: Fix blk_mq_make_request for mq devices

  * CVE-2019-14901
    - SAUCE: mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()

  * CVE-2019-14896 // CVE-2019-14897
    - SAUCE: libertas: Fix two buffer overflows at parsing bss descriptor

  * CVE-2019-14895
    - SAUCE: mwifiex: fix possible heap overflow in mwifiex_process_country_ie()

  * [CML] New device id's for CMP-H (LP: #1846335)
    - mmc: sdhci-pci: Add another Id for Intel CML
    - i2c: i801: Add support for Intel Comet Lake PCH-H
    - mtd: spi-nor: intel-spi: Add support for Intel Comet Lake-H SPI serial flash
    - mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDs

  * Please add patch fixing RK818 ID detection (LP: #1853192)
    - SAUCE: mfd: rk808: Fix RK818 ID template

  * [SRU][B/OEM-B/OEM-OSP1/D] Enable new Elan touchpads which are not in current
    whitelist (LP: #1853246)
    - Input: elan_i2c - export the device id whitelist
    - HID: quirks: Refactor ELAN 400 and 401 handling

  * Lenovo dock MAC Address pass through doesn't work in Ubuntu (LP: #1827961)
    - r8152: Add macpassthru support for ThinkPad Thunderbolt 3 Dock Gen 2

  * [CML-S62] Need enable turbostat patch support for Comet lake- S 6+2
    (LP: #1847451)
    - SAUCE: tools/power turbostat: Add Cometlake support

  * External microphone can't work on some dell machines with the codec alc256
    or alc236 (LP: #1853791)
    - SAUCE: ALSA: hda/realtek - Move some alc256 pintbls to fallback table
    - SAUCE: ALSA: hda/realtek - Move some alc236 pintbls to fallback table

  * Memory leak in net/xfrm/xfrm_state.c - 8 pages per ipsec connection
    (LP: #1853197)
    - xfrm: Fix memleak on xfrm state destroy

  * CVE-2019-18660: patches for Ubuntu (LP: #1853142) // CVE-2019-18660
    - powerpc/64s: support nospectre_v2 cmdline option
    - powerpc/book3s64: Fix link stack flush on context switch
    - KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel

  * Raydium Touchscreen on ThinkPad L390 does not work (LP: #1849721)
    - HID: i2c-hid: fix no irq after reset on raydium 3118

  * Make Goodix I2C touchpads work (LP: #1853842)
    - HID: i2c-hid: Remove runtime power management
    - HID: i2c-hid: Send power-on command after reset

  * Touchpad doesn't work on Dell Inspiron 7000 2-in-1 (LP: #1851901)
    - Revert "UBUNTU: SAUCE: mfd: intel-lpss: add quirk for Dell XPS 13 7390
      2-in-1"
    - lib: devres: add a helper function for ioremap_uc
    - mfd: intel-lpss: Use devm_ioremap_uc for MMIO

  * CVE-2019-19055
    - nl80211: fix memory leak in nl80211_get_ftm_responder_stats

  * [CML-S62] Need enable intel_rapl patch support for Comet lake- S 6+2
    (LP: #1847454)
    - powercap/intel_rapl: add support for CometLake Mobile
    - powercap/intel_rapl: add support for Cometlake desktop

  * [CML-S62] Need enable intel_pmc_core driver patch for Comet l...

Changed in linux (Ubuntu Disco):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :
Download full text (42.4 KiB)

This bug was fixed in the package linux - 4.15.0-74.84

---------------
linux (4.15.0-74.84) bionic; urgency=medium

  * bionic/linux: 4.15.0-74.84 -proposed tracker (LP: #1856749)

  * [Hyper-V] KVP daemon fails to start on first boot of disco VM (LP: #1820063)
    - [Packaging] bind hv_kvp_daemon startup to hv_kvp device

  * Unrevert "arm64: Use firmware to detect CPUs that are not affected by
    Spectre-v2" (LP: #1854207)
    - arm64: Get rid of __smccc_workaround_1_hvc_*
    - arm64: Use firmware to detect CPUs that are not affected by Spectre-v2

  * Bionic kernel panic on Cavium ThunderX CN88XX (LP: #1853485)
    - SAUCE: irqchip/gic-v3-its: Add missing return value in
      its_irq_domain_activate()

linux (4.15.0-73.82) bionic; urgency=medium

  * bionic/linux: 4.15.0-73.82 -proposed tracker (LP: #1854819)

  * CVE-2019-14901
    - SAUCE: mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()

  * CVE-2019-14896 // CVE-2019-14897
    - SAUCE: libertas: Fix two buffer overflows at parsing bss descriptor

  * CVE-2019-14895
    - SAUCE: mwifiex: fix possible heap overflow in mwifiex_process_country_ie()

  * CVE-2019-18660: patches for Ubuntu (LP: #1853142) // CVE-2019-18660
    - powerpc/64s: support nospectre_v2 cmdline option
    - powerpc/book3s64: Fix link stack flush on context switch
    - KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel

  * Please add patch fixing RK818 ID detection (LP: #1853192)
    - SAUCE: mfd: rk808: Fix RK818 ID template

  * [SRU][B/OEM-B/OEM-OSP1/D] Enable new Elan touchpads which are not in current
    whitelist (LP: #1853246)
    - HID: quirks: Fix keyboard + touchpad on Lenovo Miix 630
    - Input: elan_i2c - export the device id whitelist
    - HID: quirks: Refactor ELAN 400 and 401 handling

  * Lenovo dock MAC Address pass through doesn't work in Ubuntu (LP: #1827961)
    - r8152: Add macpassthru support for ThinkPad Thunderbolt 3 Dock Gen 2

  * s390/dasd: reduce the default queue depth and nr of hardware queues
    (LP: #1852257)
    - s390/dasd: reduce the default queue depth and nr of hardware queues

  * External microphone can't work on some dell machines with the codec alc256
    or alc236 (LP: #1853791)
    - SAUCE: ALSA: hda/realtek - Move some alc256 pintbls to fallback table
    - SAUCE: ALSA: hda/realtek - Move some alc236 pintbls to fallback table

  * Memory leak in net/xfrm/xfrm_state.c - 8 pages per ipsec connection
    (LP: #1853197)
    - xfrm: Fix memleak on xfrm state destroy

  * CVE-2019-19083
    - drm/amd/display: memory leak

  * update ENA driver for DIMLIB dynamic interrupt moderation (LP: #1853180)
    - net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
    - net: ena: switch to dim algorithm for rx adaptive interrupt moderation
    - net: ena: reimplement set/get_coalesce()
    - net: ena: enable the interrupt_moderation in driver_supported_features
    - net: ena: remove code duplication in
      ena_com_update_nonadaptive_moderation_interval _*()
    - net: ena: remove old adaptive interrupt moderation code from ena_netdev
    - net: ena: remove ena_restore_ethtool_params() and relevant fields
    - net: ena: remov...

Changed in linux (Ubuntu Bionic):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :
Download full text (15.0 KiB)

This bug was fixed in the package linux - 4.4.0-171.200

---------------
linux (4.4.0-171.200) xenial; urgency=medium

  * xenial/linux: 4.4.0-171.200 -proposed tracker (LP: #1854835)

  * CVE-2019-14901
    - SAUCE: mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()

  * CVE-2019-14896 // CVE-2019-14897
    - SAUCE: libertas: Fix two buffer overflows at parsing bss descriptor

  * CVE-2019-14895
    - SAUCE: mwifiex: fix possible heap overflow in mwifiex_process_country_ie()

  * CVE-2019-18660: patches for Ubuntu (LP: #1853142) // CVE-2019-18660
    - powerpc/64s: support nospectre_v2 cmdline option
    - powerpc/book3s64: Fix link stack flush on context switch
    - KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel

  * cloudimg: no iavf/i40evf module so no network available with SR-IOV enabled
    cloud (LP: #1848481)
    - [Packaging]: include i40evf in generic

  * update ENA driver for DIMLIB dynamic interrupt moderation (LP: #1853180)
    - net: ena: fix bug that might cause hang after consecutive open/close
      interface.
    - net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
    - net: ena: switch to dim algorithm for rx adaptive interrupt moderation
    - net: ena: reimplement set/get_coalesce()
    - net: ena: enable the interrupt_moderation in driver_supported_features
    - net: ena: remove code duplication in
      ena_com_update_nonadaptive_moderation_interval _*()
    - net: ena: remove old adaptive interrupt moderation code from ena_netdev
    - net: ena: remove ena_restore_ethtool_params() and relevant fields
    - net: ena: remove all old adaptive rx interrupt moderation code from ena_com
    - net: ena: fix update of interrupt moderation register
    - net: ena: fix retrieval of nonadaptive interrupt moderation intervals
    - net: ena: fix incorrect update of intr_delay_resolution
    - net: ena: Select DIMLIB for ENA_ETHERNET
    - SAUCE: net: ena: fix issues in setting interrupt moderation params in
      ethtool
    - SAUCE: net: ena: fix too long default tx interrupt moderation interval

  * backport DIMLIB (lib/dim/) to pre-5.2 kernels (LP: #1852637)
    - include/linux/bitops.h: introduce BITS_PER_TYPE
    - linux/kernel.h: move DIV_ROUND_DOWN_ULL() macro
    - [Config] enable DIMLIB
    - linux/dim: import DIMLIB (lib/dim/)
    - SAUCE: linux/dim: avoid library object filename clash

  * Enable framebuffer fonts auto selection for HighDPI screen (LP: #1851623)
    - fonts: Fix coding style
    - fonts: Prefer a bigger font for high resolution screens

  * Xenial update: 4.4.203 upstream stable release (LP: #1853881)
    - slip: Fix memory leak in slip_open error path
    - ax88172a: fix information leak on short answers
    - ALSA: usb-audio: Fix missing error check at mixer resolution test
    - ALSA: usb-audio: not submit urb for stopped endpoint
    - Input: ff-memless - kill timer in destroy()
    - ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
    - ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
    - iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
    - mm: memcg: switch to css_tryget() in g...

Changed in linux (Ubuntu Xenial):
status: Fix Committed → Fix Released
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