This is a note to let you know that I've just added the patch titled
x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-pti-rename-bug_cpu_insecure-to-bug_cpu_meltdown.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From de791821c295cc61419a06fe5562288417d1bc58 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date: Fri, 5 Jan 2018 15:27:34 +0100
Subject: x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
commit de791821c295cc61419a06fe5562288417d1bc58 upstream.
Use the name associated with the particular attack which needs page table
isolation for mitigation.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
Cc: Alan Cox <gnomes@xxxxxxxxxxxxxxxxxxx>
Cc: Jiri Koshina <jikos@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
Cc: Andi Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Paul Turner <pjt@xxxxxxxxxx>
Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>
Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1801051525300.1724@nanos
Signed-off-by: Razvan Ghitulete <rga@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/include/asm/cpufeature.h | 2 +-
arch/x86/kernel/cpu/common.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -277,7 +277,7 @@
#define X86_BUG_FXSAVE_LEAK X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
#define X86_BUG_CLFLUSH_MONITOR X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
#define X86_BUG_SYSRET_SS_ATTRS X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
-#define X86_BUG_CPU_INSECURE X86_BUG(14) /* CPU is insecure and needs kernel page table isolation */
+#define X86_BUG_CPU_MELTDOWN X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */
#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -832,7 +832,7 @@ static void __init early_identify_cpu(st
setup_force_cpu_cap(X86_FEATURE_ALWAYS);
/* Assume for now that ALL x86 CPUs are insecure */
- setup_force_cpu_bug(X86_BUG_CPU_INSECURE);
+ setup_force_cpu_bug(X86_BUG_CPU_MELTDOWN);
fpu__init_system(c);
}
Patches currently in stable-queue which might be from tglx@xxxxxxxxxxxxx are
queue-4.4/x86-mm-pat-dev-mem-remove-superfluous-error-message.patch
queue-4.4/x86-cpufeatures-add-x86_bug_spectre_v.patch
queue-4.4/x86-microcode-intel-extend-bdw-late-loading-with-a-revision-check.patch
queue-4.4/x86-alternatives-add-missing-n-at-end-of-alternative-inline-asm.patch
queue-4.4/sysfs-cpu-fix-typos-in-vulnerability-documentation.patch
queue-4.4/locking-mutex-allow-next-waiter-lockless-wakeup.patch
queue-4.4/x86-cpufeatures-add-x86_bug_cpu_insecure.patch
queue-4.4/x86-cpufeatures-make-cpu-bugs-sticky.patch
queue-4.4/x86-vsdo-fix-build-on-paravirt_clock-y-kvm_guest-n.patch
queue-4.4/x86-pti-efi-broken-conversion-from-efi-to-kernel-page-table.patch
queue-4.4/x86-documentation-add-pti-description.patch
queue-4.4/x86-acpi-handle-sci-interrupts-above-legacy-space-gracefully.patch
queue-4.4/x86-cpu-implement-cpu-vulnerabilites-sysfs-functions.patch
queue-4.4/futex-replace-barrier-in-unqueue_me-with-read_once.patch
queue-4.4/x86-cpu-factor-out-application-of-forced-cpu-caps.patch
queue-4.4/selftests-x86-add-test_vsyscall.patch
queue-4.4/x86-cpu-merge-bugs.c-and-bugs_64.c.patch
queue-4.4/sysfs-cpu-add-vulnerability-folder.patch
queue-4.4/x86-pti-rename-bug_cpu_insecure-to-bug_cpu_meltdown.patch
queue-4.4/x86-acpi-reduce-code-duplication-in-mp_override_legacy_irq.patch
queue-4.4/x86-alternatives-fix-optimize_nops-checking.patch