ARM CPU erratum Neoverse-N1 #1542419

Bug #1855729 reported by Kamal Mostafa on 2019-12-09
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-aws (Ubuntu)
Undecided
Kamal Mostafa
Bionic
Undecided
Kamal Mostafa

Bug Description

linux-aws-bionic needs the mainline patch set for ARM CPU erratum Neoverse-N1 #1542419 and its prerequisites:

arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space
arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419
arm64: errata: Hide CTR_EL0.DIC on systems affected by Neoverse-N1 #1542419
arm64: cpufeature: Trap CTR_EL0 access only where it is necessary
arm64: Add part number for Neoverse N1
arm64: Add support for new control bits CTR_EL0.DIC and CTR_EL0.IDC

CVE References

Changed in linux-aws (Ubuntu Bionic):
status: New → In Progress
assignee: nobody → Kamal Mostafa (kamalmostafa)
Changed in linux-aws (Ubuntu Bionic):
status: In Progress → Fix Committed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-aws - 4.15.0-1058.60

---------------
linux-aws (4.15.0-1058.60) bionic; urgency=medium

  * bionic/linux-aws: 4.15.0-1058.60 -proposed tracker (LP: #1859795)

  * Update EFA driver to 1.5.0 (LP: #1850195)
    - SAUCE: linux/efa: Fix incorrect error print
    - SAUCE: linux/efa: Fix ‘err’ may be used uninitialized in this function
      warning
    - SAUCE: linux/efa: Add support for CentOS 7.7
    - SAUCE: linux/efa: Clear the admin command buffer prior to its submission
    - SAUCE: linux/efa: Bump driver version to 1.4.1
    - SAUCE: linux/efa: Store network attributes in device attributes
    - SAUCE: linux/efa: Support remote read access in MR registration
    - SAUCE: linux/efa: Expose RDMA read related attributes
    - SAUCE: linux/efa: Add ib_uverbs as a soft dependency
    - SAUCE: linux/efa: Use the ib_port_phys_state enum values
    - SAUCE: linux/efa: Backport missing driver id
    - SAUCE: linux/efa: Check sscanf return value
    - SAUCE: linux/efa: SuSE 15.1 support
    - SAUCE: linux/efa: Bump driver version to 1.5.0

  * linux-aws: swapoff optimization (LP: #1858618)
    - UBUNTU SAUCE [aws]: mm: swap: improve swap readahead heuristic

  * ARM CPU erratum Neoverse-N1 #1542419 (LP: #1855729)
    - arm64: Add support for new control bits CTR_EL0.DIC and CTR_EL0.IDC
    - arm64: Add part number for Neoverse N1
    - arm64: cpufeature: Trap CTR_EL0 access only where it is necessary
    - arm64: errata: Hide CTR_EL0.DIC on systems affected by Neoverse-N1 #1542419
    - arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419
    - arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space
    - aws: [Config] updateconfigs for ARM64_ERRATUM_1542419

  [ Ubuntu: 4.15.0-75.85 ]

  * bionic/linux: 4.15.0-75.85 -proposed tracker (LP: #1859705)
  * use-after-free in i915_ppgtt_close (LP: #1859522) // CVE-2020-7053
    - SAUCE: drm/i915: Fix use-after-free when destroying GEM context
  * CVE-2019-14615
    - drm/i915/gen9: Clear residual context state on context switch
  * PAN is broken for execute-only user mappings on ARMv8 (LP: #1858815)
    - arm64: Revert support for execute-only user mappings
  * [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?
    (LP: #1856608)
    - SAUCE: Revert "usb: handle warm-reset port requests on hub resume"
  * Miscellaneous Ubuntu changes
    - update dkms package versions

  [ Ubuntu: 4.15.0-74.84 ]

  * 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()

 -- Connor Kuehl <email address hidden> Wed, 15 Jan 2020 10:27:24 -0800

Changed in linux-aws (Ubuntu Bionic):
status: Fix Committed → Fix Released
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