** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1972006
Title:
Bionic update: upstream stable patchset 2022-05-06
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Fix Committed
Bug description:
SRU Justification
Impact:
The upstream process for stable tree updates is quite similar
in scope to the Ubuntu SRU process, e.g., each patch has to
demonstrably fix a bug, and each patch is vetted by upstream
by originating either directly from a mainline/stable Linux tree or
a minimally backported form of that patch. The following upstream
stable patches should be included in the Ubuntu kernel:
upstream stable patchset 2022-05-06
Ported from the following upstream stable releases:
v4.14.275
from git://git.kernel.org/
UBUNTU: [Config] updateconfigs for ARM64_ERRATUM_1188873
arm64: arch_timer: Add workaround for ARM erratum 1188873
arm64: arch_timer: avoid unused function warning
arm64: Add silicon-errata.txt entry for ARM erratum 1188873
arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
arm64: Add part number for Neoverse N1
arm64: Add part number for Arm Cortex-A77
arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
arm64: Add Cortex-X2 CPU part definition
arm64: entry.S: Add ventry overflow sanity checks
arm64: entry: Make the trampoline cleanup optional
arm64: entry: Free up another register on kpti's tramp_exit path
arm64: entry: Move the trampoline data page before the text page
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary
arm64: entry: Don't assume tramp_vectors is the start of the vectors
arm64: entry: Move trampoline macros out of ifdef'd section
arm64: entry: Make the kpti trampoline's kpti sequence optional
Revert "arm64: mmu: add the entry trampolines start/end section markers into
sections.h"
arm64: entry: Allow the trampoline text to occupy multiple pages
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations
UBUNTU: [Config] updateconfigs for MITIGATE_SPECTRE_BRANCH_HISTORY
arm64: entry: Add vectors that have the bhb mitigation sequences
arm64: entry: Add macro for reading symbol addresses from the trampoline
arm64: Add percpu vectors for EL1
arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
KVM: arm64: Add templates for BHB mitigation sequences
arm64: Mitigate spectre style branch history side channels
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated
arm64: add ID_AA64ISAR2_EL1 sys register
arm64: Use the clearbhb instruction in mitigations
UBUNTU: upstream stable to v4.14.275
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