[PATCH 5.16 00/37] 5.16.14-rc1 review

Greg Kroah-Hartman
2022-03-09T16:22:44Z

This is the start of the stable review cycle for the 5.16.14 release.
There are 37 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.

Responses should be made by Fri, 11 Mar 2022 15:58:48 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.16.14-rc1.gz
or in the git tree and branch at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.16.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux 5.16.14-rc1

Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
ARM: fix build error when BPF_SYSCALL is disabled

James Morse <james.morse@arm.com>
arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting

James Morse <james.morse@arm.com>
arm64: Use the clearbhb instruction in mitigations

James Morse <james.morse@arm.com>
KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated

James Morse <james.morse@arm.com>
arm64: Mitigate spectre style branch history side channels

James Morse <james.morse@arm.com>
arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2

James Morse <james.morse@arm.com>
arm64: Add percpu vectors for EL1

James Morse <james.morse@arm.com>
arm64: entry: Add macro for reading symbol addresses from the trampoline

James Morse <james.morse@arm.com>
arm64: entry: Add vectors that have the bhb mitigation sequences

James Morse <james.morse@arm.com>
arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations

James Morse <james.morse@arm.com>
arm64: entry: Allow the trampoline text to occupy multiple pages

James Morse <james.morse@arm.com>
arm64: entry: Make the kpti trampoline's kpti sequence optional

James Morse <james.morse@arm.com>
arm64: entry: Move trampoline macros out of ifdef'd section

James Morse <james.morse@arm.com>
arm64: entry: Don't assume tramp_vectors is the start of the vectors

James Morse <james.morse@arm.com>
arm64: entry: Allow tramp_alias to access symbols after the 4K boundary

James Morse <james.morse@arm.com>
arm64: entry: Move the trampoline data page before the text page

James Morse <james.morse@arm.com>
arm64: entry: Free up another register on kpti's tramp_exit path

James Morse <james.morse@arm.com>
arm64: entry: Make the trampoline cleanup optional

James Morse <james.morse@arm.com>
KVM: arm64: Allow indirect vectors to be used without SPECTRE_V3A

James Morse <james.morse@arm.com>
arm64: spectre: Rename spectre_v4_patch_fw_mitigation_conduit

James Morse <james.morse@arm.com>
arm64: entry.S: Add ventry overflow sanity checks

Joey Gouly <joey.gouly@arm.com>
arm64: cpufeature: add HWCAP for FEAT_RPRES

Joey Gouly <joey.gouly@arm.com>
arm64: cpufeature: add HWCAP for FEAT_AFP

Joey Gouly <joey.gouly@arm.com>
arm64: add ID_AA64ISAR2_EL1 sys register

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
ARM: include unprivileged BPF status in Spectre V2 reporting

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
ARM: Spectre-BHB workaround

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
ARM: use LOADADDR() to get load address of sections

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
ARM: early traps initialisation

Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
ARM: report Spectre v2 status through sysfs

Josh Poimboeuf <jpoimboe@redhat.com>
x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT

Josh Poimboeuf <jpoimboe@redhat.com>
x86/speculation: Warn about Spectre v2 LFENCE mitigation

Kim Phillips <kim.phillips@amd.com>
x86/speculation: Update link to AMD speculation whitepaper

Kim Phillips <kim.phillips@amd.com>
x86/speculation: Use generic retpoline by default on AMD

Josh Poimboeuf <jpoimboe@redhat.com>
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting

Peter Zijlstra <peterz@infradead.org>
Documentation/hw-vuln: Update spectre doc

Peter Zijlstra <peterz@infradead.org>
x86/speculation: Add eIBRS + Retpoline options

Peter Zijlstra (Intel) <peterz@infradead.org>
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE

-------------

Diffstat:

Documentation/admin-guide/hw-vuln/spectre.rst | 50 +--
Documentation/admin-guide/kernel-parameters.txt | 8 +-
Documentation/arm64/cpu-feature-registers.rst | 17 ++
Documentation/arm64/elf_hwcaps.rst | 8 +
Makefile | 4 +-
arch/arm/include/asm/assembler.h | 10 +
arch/arm/include/asm/spectre.h | 32 ++
arch/arm/include/asm/vmlinux.lds.h | 35 ++-
arch/arm/kernel/Makefile | 2 +
arch/arm/kernel/entry-armv.S | 79 ++++-
arch/arm/kernel/entry-common.S | 24 ++
arch/arm/kernel/spectre.c | 71 +++++
arch/arm/kernel/traps.c | 65 +++-
arch/arm/mm/Kconfig | 11 +
arch/arm/mm/proc-v7-bugs.c | 207 ++++++++++---
arch/arm64/Kconfig | 9 +
arch/arm64/include/asm/assembler.h | 53 ++++
arch/arm64/include/asm/cpu.h | 1 +
arch/arm64/include/asm/cpufeature.h | 29 ++
arch/arm64/include/asm/cputype.h | 8 +
arch/arm64/include/asm/fixmap.h | 6 +-
arch/arm64/include/asm/hwcap.h | 2 +
arch/arm64/include/asm/insn.h | 1 +
arch/arm64/include/asm/kvm_host.h | 5 +
arch/arm64/include/asm/sections.h | 5 +
arch/arm64/include/asm/spectre.h | 4 +
arch/arm64/include/asm/sysreg.h | 18 ++
arch/arm64/include/asm/vectors.h | 73 +++++
arch/arm64/include/uapi/asm/hwcap.h | 2 +
arch/arm64/include/uapi/asm/kvm.h | 5 +
arch/arm64/kernel/cpu_errata.c | 7 +
arch/arm64/kernel/cpufeature.c | 25 ++
arch/arm64/kernel/cpuinfo.c | 3 +
arch/arm64/kernel/entry.S | 214 +++++++++----
arch/arm64/kernel/image-vars.h | 4 +
arch/arm64/kernel/proton-pack.c | 391 +++++++++++++++++++++++-
arch/arm64/kernel/vmlinux.lds.S | 2 +-
arch/arm64/kvm/arm.c | 5 +-
arch/arm64/kvm/hyp/hyp-entry.S | 9 +
arch/arm64/kvm/hyp/nvhe/mm.c | 4 +-
arch/arm64/kvm/hyp/vhe/switch.c | 9 +-
arch/arm64/kvm/hypercalls.c | 12 +
arch/arm64/kvm/psci.c | 18 +-
arch/arm64/kvm/sys_regs.c | 2 +-
arch/arm64/mm/mmu.c | 12 +-
arch/arm64/tools/cpucaps | 1 +
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/include/asm/nospec-branch.h | 16 +-
arch/x86/kernel/alternative.c | 8 +-
arch/x86/kernel/cpu/bugs.c | 204 ++++++++++---
arch/x86/lib/retpoline.S | 2 +-
arch/x86/net/bpf_jit_comp.c | 2 +-
include/linux/arm-smccc.h | 5 +
include/linux/bpf.h | 12 +
kernel/sysctl.c | 7 +
tools/arch/x86/include/asm/cpufeatures.h | 2 +-
56 files changed, 1606 insertions(+), 216 deletions(-)