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Message-Id: <1658574849159138@kroah.com>
Date: Sat, 23 Jul 2022 13:14:08 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Linux 5.15.57
I'm announcing the release of the 5.15.57 kernel.
All users of the 5.15 kernel series must upgrade.
The updated 5.15.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
thanks,
greg k-h
------------
Documentation/admin-guide/kernel-parameters.txt | 25
Makefile | 9
arch/um/kernel/um_arch.c | 8
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 | 134 ++--
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_32.S | 1
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 | 33 -
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/platform/efi/efi_thunk_64.S | 5
arch/x86/xen/setup.c | 6
arch/x86/xen/xen-asm.S | 30 -
arch/x86/xen/xen-head.S | 5
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/cpufeatures.h | 12
tools/arch/x86/include/asm/disabled-features.h | 21
tools/arch/x86/include/asm/msr-index.h | 13
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
84 files changed, 2519 insertions(+), 953 deletions(-)
Alexandre Chartre (2):
x86/bugs: Report AMD retbleed vulnerability
x86/bugs: Add AMD retbleed= boot parameter
Andrew Cooper (1):
x86/cpu/amd: Enumerate BTC_NO
Arnaldo Carvalho de Melo (2):
tools arch x86: Sync the msr-index.h copy with the kernel sources
tools headers cpufeatures: Sync with the kernel sources
Ben Hutchings (1):
x86/xen: Fix initialisation in hypercall_page after rethunk
Greg Kroah-Hartman (1):
Linux 5.15.57
Jiri Slaby (1):
x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit
Josh Poimboeuf (12):
x86/bugs: Do IBPB fallback check only once
x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
x86/speculation: Fix firmware entry SPEC_CTRL handling
x86/speculation: Fix SPEC_CTRL write on SMT state change
x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
x86/speculation: Remove x86_spec_ctrl_mask
objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
KVM: VMX: Flatten __vmx_vcpu_run()
KVM: VMX: Convert launched argument to flags
KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
KVM: VMX: Fix IBRS handling after vmexit
x86/speculation: Fill RSB on vmexit for IBRS
Kim Phillips (3):
x86/sev: Avoid using __x86_return_thunk
x86/bugs: Enable STIBP for JMP2RET
x86/bugs: Remove apostrophe typo
Konrad Rzeszutek Wilk (1):
x86/kexec: Disable RET on kexec
Lai Jiangshan (4):
x86/traps: Use pt_regs directly in fixup_bad_iret()
x86/entry: Switch the stack after error_entry() returns
x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry()
x86/entry: Don't call error_entry() for XENPV
Nathan Chancellor (1):
x86/speculation: Use DECLARE_PER_CPU for x86_spec_ctrl_current
Paolo Bonzini (1):
KVM: emulate: do not adjust size of fastop and setcc subroutines
Pawan Gupta (3):
x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS
x86/bugs: Add Cannon lake to RETBleed affected CPU list
x86/speculation: Disable RRSBA behavior
Peter Zijlstra (50):
objtool: Classify symbols
objtool: Explicitly avoid self modifying code in .altinstr_replacement
objtool: Shrink struct instruction
objtool,x86: Replace alternatives with .retpoline_sites
objtool: Introduce CFI hash
x86/retpoline: Remove unused replacement symbols
x86/asm: Fix register order
x86/asm: Fixup odd GEN-for-each-reg.h usage
x86/retpoline: Move the retpoline thunk declarations to nospec-branch.h
x86/retpoline: Create a retpoline thunk array
x86/alternative: Implement .retpoline_sites support
x86/alternative: Handle Jcc __x86_indirect_thunk_\reg
x86/alternative: Try inline spectre_v2=retpoline,amd
x86/alternative: Add debug prints to apply_retpolines()
bpf,x86: Simplify computing label offsets
bpf,x86: Respect X86_FEATURE_RETPOLINE*
objtool: Default ignore INT3 for unreachable
x86/entry: Remove skip_r11rcx
x86/kvm/vmx: Make noinstr clean
x86/cpufeatures: Move RETPOLINE flags to word 11
x86/retpoline: Cleanup some #ifdefery
x86/retpoline: Swizzle retpoline thunk
x86/retpoline: Use -mfunction-return
x86: Undo return-thunk damage
x86,objtool: Create .return_sites
x86,static_call: Use alternative RET encoding
x86/ftrace: Use alternative RET encoding
x86/bpf: Use alternative RET encoding
x86/kvm: Fix SETcc emulation for return thunks
x86/vsyscall_emu/64: Don't use RET in vsyscall emulation
x86: Use return-thunk in asm code
x86/entry: Avoid very early RET
objtool: Treat .text.__x86.* as noinstr
x86: Add magic AMD return-thunk
x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value
x86/bugs: Optimize SPEC_CTRL MSR writes
x86/bugs: Split spectre_v2_select_mitigation() and spectre_v2_user_select_mitigation()
x86/bugs: Report Intel retbleed vulnerability
intel_idle: Disable IBRS during long idle
objtool: Update Retpoline validation
x86/xen: Rename SYS* entry points
x86/xen: Add UNTRAIN_RET
x86/bugs: Add retbleed=ibpb
objtool: Add entry UNRET validation
x86/cpu/amd: Add Spectral Chicken
x86/common: Stamp out the stepping madness
x86/retbleed: Add fine grained Kconfig knobs
x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry
um: Add missing apply_returns()
x86: Use -mindirect-branch-cs-prefix for RETPOLINE builds
Thadeu Lima de Souza Cascardo (6):
x86/realmode: build with -D__DISABLE_EXPORTS
objtool: skip non-text sections when adding return-thunk sites
x86/entry: Add kernel IBRS implementation
x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
efi/x86: use naked RET on mixed mode call wrapper
x86/kvm: fix FASTOP_SIZE when return thunks are enabled
Thomas Gleixner (1):
x86/static_call: Serialize __static_call_fixup() properly
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