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Message-Id: <20220712183238.844813653@linuxfoundation.org>
Date: Tue, 12 Jul 2022 20:38:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
jonathanh@...dia.com, f.fainelli@...il.com,
sudipm.mukherjee@...il.com, slade@...dewatkins.com
Subject: [PATCH 5.15 00/78] 5.15.55-rc1 review
This is the start of the stable review cycle for the 5.15.55 release.
There are 78 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 Thu, 14 Jul 2022 18:32:19 +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-5.15.55-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-5.15.y
and the diffstat can be found below.
thanks,
greg k-h
-------------
Pseudo-Shortlog of commits:
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Linux 5.15.55-rc1
Thomas Gleixner <tglx@...utronix.de>
x86/static_call: Serialize __static_call_fixup() properly
Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
x86/speculation: Disable RRSBA behavior
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
x86/kexec: Disable RET on kexec
Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
Peter Zijlstra <peterz@...radead.org>
x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry
Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
x86/bugs: Add Cannon lake to RETBleed affected CPU list
Peter Zijlstra <peterz@...radead.org>
x86/retbleed: Add fine grained Kconfig knobs
Andrew Cooper <andrew.cooper3@...rix.com>
x86/cpu/amd: Enumerate BTC_NO
Peter Zijlstra <peterz@...radead.org>
x86/common: Stamp out the stepping madness
Josh Poimboeuf <jpoimboe@...nel.org>
x86/speculation: Fill RSB on vmexit for IBRS
Josh Poimboeuf <jpoimboe@...nel.org>
KVM: VMX: Fix IBRS handling after vmexit
Josh Poimboeuf <jpoimboe@...nel.org>
KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
Josh Poimboeuf <jpoimboe@...nel.org>
KVM: VMX: Convert launched argument to flags
Josh Poimboeuf <jpoimboe@...nel.org>
KVM: VMX: Flatten __vmx_vcpu_run()
Josh Poimboeuf <jpoimboe@...nel.org>
objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
Josh Poimboeuf <jpoimboe@...nel.org>
x86/speculation: Remove x86_spec_ctrl_mask
Josh Poimboeuf <jpoimboe@...nel.org>
x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
Josh Poimboeuf <jpoimboe@...nel.org>
x86/speculation: Fix SPEC_CTRL write on SMT state change
Josh Poimboeuf <jpoimboe@...nel.org>
x86/speculation: Fix firmware entry SPEC_CTRL handling
Josh Poimboeuf <jpoimboe@...nel.org>
x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
Peter Zijlstra <peterz@...radead.org>
x86/cpu/amd: Add Spectral Chicken
Peter Zijlstra <peterz@...radead.org>
objtool: Add entry UNRET validation
Josh Poimboeuf <jpoimboe@...nel.org>
x86/bugs: Do IBPB fallback check only once
Peter Zijlstra <peterz@...radead.org>
x86/bugs: Add retbleed=ibpb
Peter Zijlstra <peterz@...radead.org>
x86/xen: Add UNTRAIN_RET
Peter Zijlstra <peterz@...radead.org>
x86/xen: Rename SYS* entry points
Peter Zijlstra <peterz@...radead.org>
objtool: Update Retpoline validation
Peter Zijlstra <peterz@...radead.org>
intel_idle: Disable IBRS during long idle
Peter Zijlstra <peterz@...radead.org>
x86/bugs: Report Intel retbleed vulnerability
Peter Zijlstra <peterz@...radead.org>
x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation()
Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS
Peter Zijlstra <peterz@...radead.org>
x86/bugs: Optimize SPEC_CTRL MSR writes
Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
x86/entry: Add kernel IBRS implementation
Peter Zijlstra <peterz@...radead.org>
x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value
Kim Phillips <kim.phillips@....com>
x86/bugs: Enable STIBP for JMP2RET
Alexandre Chartre <alexandre.chartre@...cle.com>
x86/bugs: Add AMD retbleed= boot parameter
Alexandre Chartre <alexandre.chartre@...cle.com>
x86/bugs: Report AMD retbleed vulnerability
Peter Zijlstra <peterz@...radead.org>
x86: Add magic AMD return-thunk
Peter Zijlstra <peterz@...radead.org>
objtool: Treat .text.__x86.* as noinstr
Peter Zijlstra <peterz@...radead.org>
x86/entry: Avoid very early RET
Peter Zijlstra <peterz@...radead.org>
x86: Use return-thunk in asm code
Kim Phillips <kim.phillips@....com>
x86/sev: Avoid using __x86_return_thunk
Peter Zijlstra <peterz@...radead.org>
x86/vsyscall_emu/64: Don't use RET in vsyscall emulation
Peter Zijlstra <peterz@...radead.org>
x86/kvm: Fix SETcc emulation for return thunks
Peter Zijlstra <peterz@...radead.org>
x86/bpf: Use alternative RET encoding
Peter Zijlstra <peterz@...radead.org>
x86/ftrace: Use alternative RET encoding
Peter Zijlstra <peterz@...radead.org>
x86,static_call: Use alternative RET encoding
Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
objtool: skip non-text sections when adding return-thunk sites
Peter Zijlstra <peterz@...radead.org>
x86,objtool: Create .return_sites
Peter Zijlstra <peterz@...radead.org>
x86: Undo return-thunk damage
Peter Zijlstra <peterz@...radead.org>
x86/retpoline: Use -mfunction-return
Peter Zijlstra <peterz@...radead.org>
x86/retpoline: Swizzle retpoline thunk
Peter Zijlstra <peterz@...radead.org>
x86/retpoline: Cleanup some #ifdefery
Peter Zijlstra <peterz@...radead.org>
x86/cpufeatures: Move RETPOLINE flags to word 11
Peter Zijlstra <peterz@...radead.org>
x86/kvm/vmx: Make noinstr clean
Thadeu Lima de Souza Cascardo <cascardo@...onical.com>
x86/realmode: build with -D__DISABLE_EXPORTS
Peter Zijlstra <peterz@...radead.org>
x86/entry: Remove skip_r11rcx
Peter Zijlstra <peterz@...radead.org>
objtool: Default ignore INT3 for unreachable
Peter Zijlstra <peterz@...radead.org>
bpf,x86: Respect X86_FEATURE_RETPOLINE*
Peter Zijlstra <peterz@...radead.org>
bpf,x86: Simplify computing label offsets
Peter Zijlstra <peterz@...radead.org>
x86/alternative: Add debug prints to apply_retpolines()
Peter Zijlstra <peterz@...radead.org>
x86/alternative: Try inline spectre_v2=retpoline,amd
Peter Zijlstra <peterz@...radead.org>
x86/alternative: Handle Jcc __x86_indirect_thunk_\reg
Peter Zijlstra <peterz@...radead.org>
x86/alternative: Implement .retpoline_sites support
Peter Zijlstra <peterz@...radead.org>
x86/retpoline: Create a retpoline thunk array
Peter Zijlstra <peterz@...radead.org>
x86/retpoline: Move the retpoline thunk declarations to nospec-branch.h
Peter Zijlstra <peterz@...radead.org>
x86/asm: Fixup odd GEN-for-each-reg.h usage
Peter Zijlstra <peterz@...radead.org>
x86/asm: Fix register order
Peter Zijlstra <peterz@...radead.org>
x86/retpoline: Remove unused replacement symbols
Peter Zijlstra <peterz@...radead.org>
objtool: Introduce CFI hash
Peter Zijlstra <peterz@...radead.org>
objtool,x86: Replace alternatives with .retpoline_sites
Peter Zijlstra <peterz@...radead.org>
objtool: Shrink struct instruction
Peter Zijlstra <peterz@...radead.org>
objtool: Explicitly avoid self modifying code in .altinstr_replacement
Peter Zijlstra <peterz@...radead.org>
objtool: Classify symbols
Lai Jiangshan <jiangshan.ljs@...group.com>
x86/entry: Don't call error_entry() for XENPV
Lai Jiangshan <jiangshan.ljs@...group.com>
x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry()
Lai Jiangshan <jiangshan.ljs@...group.com>
x86/entry: Switch the stack after error_entry() returns
Lai Jiangshan <jiangshan.ljs@...group.com>
x86/traps: Use pt_regs directly in fixup_bad_iret()
-------------
Diffstat:
Documentation/admin-guide/kernel-parameters.txt | 25 +
Makefile | 10 +-
arch/um/kernel/um_arch.c | 4 +
arch/x86/Kconfig | 103 +++-
arch/x86/Makefile | 2 +-
arch/x86/entry/Makefile | 2 +-
arch/x86/entry/calling.h | 72 ++-
arch/x86/entry/entry.S | 22 +
arch/x86/entry/entry_32.S | 2 -
arch/x86/entry/entry_64.S | 88 ++-
arch/x86/entry/entry_64_compat.S | 21 +-
arch/x86/entry/vdso/Makefile | 1 +
arch/x86/entry/vsyscall/vsyscall_emu_64.S | 9 +-
arch/x86/include/asm/GEN-for-each-reg.h | 14 +-
arch/x86/include/asm/alternative.h | 2 +
arch/x86/include/asm/asm-prototypes.h | 18 -
arch/x86/include/asm/cpufeatures.h | 12 +-
arch/x86/include/asm/disabled-features.h | 21 +-
arch/x86/include/asm/linkage.h | 8 +
arch/x86/include/asm/msr-index.h | 13 +
arch/x86/include/asm/nospec-branch.h | 133 ++---
arch/x86/include/asm/static_call.h | 17 +
arch/x86/include/asm/traps.h | 2 +-
arch/x86/include/asm/unwind_hints.h | 14 +-
arch/x86/kernel/alternative.c | 260 ++++++++-
arch/x86/kernel/cpu/amd.c | 46 +-
arch/x86/kernel/cpu/bugs.c | 475 +++++++++++++---
arch/x86/kernel/cpu/common.c | 61 ++-
arch/x86/kernel/cpu/cpu.h | 2 +
arch/x86/kernel/cpu/hygon.c | 6 +
arch/x86/kernel/cpu/scattered.c | 1 +
arch/x86/kernel/ftrace.c | 7 +-
arch/x86/kernel/head_64.S | 5 +
arch/x86/kernel/module.c | 15 +-
arch/x86/kernel/process.c | 2 +-
arch/x86/kernel/relocate_kernel_32.S | 25 +-
arch/x86/kernel/relocate_kernel_64.S | 23 +-
arch/x86/kernel/static_call.c | 49 +-
arch/x86/kernel/traps.c | 19 +-
arch/x86/kernel/vmlinux.lds.S | 23 +-
arch/x86/kvm/emulate.c | 26 +-
arch/x86/kvm/svm/vmenter.S | 18 +
arch/x86/kvm/vmx/nested.c | 2 +-
arch/x86/kvm/vmx/run_flags.h | 8 +
arch/x86/kvm/vmx/vmenter.S | 164 +++---
arch/x86/kvm/vmx/vmx.c | 76 ++-
arch/x86/kvm/vmx/vmx.h | 6 +-
arch/x86/kvm/x86.c | 4 +-
arch/x86/lib/memmove_64.S | 7 +-
arch/x86/lib/retpoline.S | 133 +++--
arch/x86/mm/mem_encrypt_boot.S | 10 +-
arch/x86/net/bpf_jit_comp.c | 179 +++---
arch/x86/net/bpf_jit_comp32.c | 22 +-
arch/x86/xen/setup.c | 6 +-
arch/x86/xen/xen-asm.S | 30 +-
arch/x86/xen/xen-head.S | 1 +
arch/x86/xen/xen-ops.h | 6 +-
drivers/base/cpu.c | 8 +
drivers/idle/intel_idle.c | 43 +-
include/linux/cpu.h | 2 +
include/linux/kvm_host.h | 2 +-
include/linux/objtool.h | 9 +-
scripts/Makefile.build | 1 +
scripts/link-vmlinux.sh | 3 +
security/Kconfig | 11 -
tools/arch/x86/include/asm/msr-index.h | 9 +
tools/include/linux/objtool.h | 9 +-
tools/objtool/arch/x86/decode.c | 145 +----
tools/objtool/builtin-check.c | 4 +-
tools/objtool/check.c | 701 ++++++++++++++++++++----
tools/objtool/elf.c | 84 ---
tools/objtool/include/objtool/arch.h | 3 +-
tools/objtool/include/objtool/builtin.h | 2 +-
tools/objtool/include/objtool/cfi.h | 2 +
tools/objtool/include/objtool/check.h | 10 +-
tools/objtool/include/objtool/elf.h | 9 +-
tools/objtool/include/objtool/objtool.h | 1 +
tools/objtool/objtool.c | 1 +
tools/objtool/orc_gen.c | 15 +-
tools/objtool/special.c | 8 -
80 files changed, 2470 insertions(+), 944 deletions(-)
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