David Kaplan a740e71c23 x86/bugs: Fix reporting of LFENCE retpoline ...

[ Upstream commit d1cc1baef6 ]

The LFENCE retpoline mitigation is not secure but the kernel prints
inconsistent messages about this fact.  The dmesg log says 'Mitigation:
LFENCE', implying the system is mitigated.  But sysfs reports 'Vulnerable:
LFENCE' implying the system (correctly) is not mitigated.

Fix this by printing a consistent 'Vulnerable: LFENCE' string everywhere
when this mitigation is selected.

Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250915134706.3201818-1-david.kaplan@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-12-07 06:09:12 +09:00

..

acpi

x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility

2023-11-08 17:26:43 +01:00

apic

x86/apic: Always explicitly disarm TSC-deadline timer

2024-10-22 15:40:46 +02:00

cpu

x86/bugs: Fix reporting of LFENCE retpoline

2025-12-07 06:09:12 +09:00

fpu

x86/fpu: Avoid writing LBR bit to IA32_XSS unless supported

2024-10-17 15:11:58 +02:00

kprobes

x86/modules: Set VM_FLUSH_RESET_PERMS in module_alloc()

2025-05-22 14:08:28 +02:00

.gitignore

…

alternative.c

x86/its: FineIBT-paranoid vs ITS

2025-05-22 14:08:24 +02:00

amd_gart_64.c

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amd_nb.c

x86/amd_nb: Restrict init function to AMD-based systems

2025-03-13 12:50:17 +01:00

aperture_64.c

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apm_32.c

x86/APM: drop the duplicate APM_MINOR_DEV macro

2023-09-19 12:22:45 +02:00

asm-offsets_32.c

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asm-offsets_64.c

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asm-offsets.c

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audit_64.c

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bootflag.c

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cc_platform.c

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check.c

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cpuid.c

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crash_core_32.c

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crash_core_64.c

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crash_dump_32.c

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crash_dump_64.c

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crash.c

x86/crash: Disable virt in core NMI crash handler to avoid double shootdown

2023-03-10 09:40:01 +01:00

devicetree.c

x86/of: Return consistent error type from x86_of_pci_irq_enable()

2024-08-19 05:44:50 +02:00

doublefault_32.c

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dumpstack_32.c

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dumpstack_64.c

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dumpstack.c

x86/dumpstack: Fix inaccurate unwinding from exception stacks due to misplaced assignment

2025-04-10 14:32:01 +02:00

e820.c

x86/e820: Fix handling of subpage regions when calculating nosave ranges in e820__register_nosave_regions()

2025-05-02 07:44:06 +02:00

early_printk.c

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early-quirks.c

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ebda.c

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eisa.c

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espfix_64.c

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ftrace_32.S

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ftrace_64.S

x86/ibt,ftrace: Make function-graph play nice

2022-08-21 15:17:48 +02:00

ftrace.c

x86/modules: Set VM_FLUSH_RESET_PERMS in module_alloc()

2025-05-22 14:08:28 +02:00

head32.c

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head64.c

x86/boot: Fix incorrect startup_gdt_descr.size

2023-11-20 11:08:13 +01:00

head_32.S

x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit

2022-07-23 12:54:12 +02:00

head_64.S

objtool: Add entry UNRET validation

2022-07-23 12:54:06 +02:00

hpet.c

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hw_breakpoint.c

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i8237.c

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i8253.c

x86/i8253: Disable PIT timer 0 when not in use

2025-03-13 12:50:46 +01:00

i8259.c

x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility

2023-11-08 17:26:43 +01:00

idt.c

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io_delay.c

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ioport.c

x86/iopl: Cure TIF_IO_BITMAP inconsistencies

2025-06-27 11:05:22 +01:00

irq_32.c

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irq_64.c

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irq_work.c

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irq.c

x86/irq: Define trace events conditionally

2025-04-10 14:31:51 +02:00

irqflags.S

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irqinit.c

x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL

2023-02-01 08:27:30 +01:00

itmt.c

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jailhouse.c

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jump_label.c

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kdebugfs.c

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kexec-bzimage64.c

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kgdb.c

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ksysfs.c

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kvm.c

x86, kvm: use proper ASM macros for kvm_vcpu_is_preempted

2022-07-02 16:41:12 +02:00

kvmclock.c

x86/kvm: Do not try to disable kvmclock if it was not enabled

2024-01-25 14:52:49 -08:00

ldt.c

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machine_kexec_32.c

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machine_kexec_64.c

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Makefile

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mmconf-fam10h_64.c

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module.c

x86/modules: Set VM_FLUSH_RESET_PERMS in module_alloc()

2025-05-22 14:08:28 +02:00

mpparse.c

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msr.c

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nmi_selftest.c

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nmi.c

x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus()

2025-06-04 14:38:00 +02:00

paravirt-spinlocks.c

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paravirt.c

x86/ibt,paravirt: Use text_gen_insn() for paravirt_patch()

2024-03-01 13:21:49 +01:00

pci-dma.c

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pci-iommu_table.c

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pci-swiotlb.c

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pcspeaker.c

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perf_regs.c

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platform-quirks.c

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pmem.c

x86/pmem: Fix platform-device leak in error path

2022-08-17 14:23:07 +02:00

probe_roms.c

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process_32.c

x86/resctl: fix scheduler confusion with 'current'

2023-03-11 13:57:39 +01:00

process_64.c

x86/cpu: Fix check for RDPKRU in __show_regs()

2024-05-02 16:24:47 +02:00

process.c

x86: Pin task-stack in __get_wchan()

2025-08-28 16:24:03 +02:00

process.h

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ptrace.c

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pvclock.c

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quirks.c

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reboot_fixups_32.c

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reboot.c

x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus()

2025-06-04 14:38:00 +02:00

relocate_kernel_32.S

x86/kexec: Disable RET on kexec

2022-07-23 12:54:11 +02:00

relocate_kernel_64.S

x86/kexec: Disable RET on kexec

2022-07-23 12:54:11 +02:00

resource.c

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rtc.c

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setup_percpu.c

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setup.c

x86/mm: Fix RESERVE_BRK() for older binutils

2023-11-08 17:26:43 +01:00

sev_verify_cbit.S

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sev-shared.c

x86/sev: Check for user-space IOIO pointing to kernel space

2023-10-25 11:58:55 +02:00

sev.c

x86/sev: Check IOBM for IOIO exceptions from user-space

2023-10-25 11:58:55 +02:00

signal_compat.c

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signal.c

x86/init: Initialize signal frame size late

2023-08-08 19:58:31 +02:00

smp.c

x86/reboot: Disable SVM, not just VMX, when stopping CPUs

2023-03-10 09:40:01 +01:00

smpboot.c

x86/smp: Use dedicated cache-line for mwait_play_dead()

2023-07-05 18:25:05 +01:00

stacktrace.c

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static_call.c

x86/its: Add support for ITS-safe return thunk

2025-05-22 14:08:23 +02:00

step.c

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sys_ia32.c

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sys_x86_64.c

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tboot.c

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time.c

x86: stop playing stack games in profile_pc()

2024-07-05 09:14:45 +02:00

tls.c

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tls.h

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topology.c

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trace_clock.c

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trace.c

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tracepoint.c

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traps.c

x86/CPU/AMD: Fix the DIV(0) initial fix attempt

2023-08-26 14:23:40 +02:00

tsc_msr.c

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tsc_sync.c

x86/tsc: Trust initial offset in architectural TSC-adjust MSRs

2024-06-16 13:39:11 +02:00

tsc.c

x86/tsc: Always save/restore TSC sched_clock() on suspend/resume

2025-04-10 14:32:05 +02:00

umip.c

x86/umip: Fix decoding of register forms of 0F 01 (SGDT and SIDT aliases)

2025-10-19 16:21:48 +02:00

unwind_frame.c

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unwind_guess.c

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unwind_orc.c

x86/unwind/orc: Fix unreliable stack dump with gcov

2022-11-03 23:59:16 +09:00

uprobes.c

uprobes/x86: Allow to probe a NOP instruction with 0x66 prefix

2022-12-31 13:14:04 +01:00

verify_cpu.S

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vm86_32.c

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vmlinux.lds.S

x86/its: Add support for ITS-safe return thunk

2025-05-22 14:08:23 +02:00

vsmp_64.c

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x86_init.c

x86/rtc: Remove __init for runtime functions

2023-04-20 12:13:56 +02:00