Patch "x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm" has been added to the 4.9-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
to the 4.9-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-alternatives-add-missing-n-at-end-of-alternative-inline-asm.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
b9e705ef7cfaf22db0daab91ad3cd33b0fa32eb9Mon Sep 17 00:00:00 2001
From: David Woodhouse <[email protected]>
Date: Thu, 4 Jan 2018 14:37:05 +0000
Subject: x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
From: David Woodhouse <[email protected]>
commit b9e705ef7cfaf22db0daab91ad3cd33b0fa32eb9 upstream.
Where an ALTERNATIVE is used in the middle of an inline asm block, this would otherwise lead to the following instruction being appended directly to the trailing ".popsection", and a failed compile.
--- arch/x86/include/asm/alternative.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
arch/x86/include/asm/alternative.h +2 -2
@@ -139,7 +139,7 @@ static inline int alternatives_text_rese".popsection\n" \".pushsection .altinstr_replacement, \"ax\"\n" \ ALTINSTR_REPLACEMENT(newinstr, feature, 1) \ - ".popsection" + ".popsection\n"#define ALTERNATIVE_2 (oldinstr, newinstr1, feature1, newinstr2, feature2)\ OLDINSTR_2(oldinstr, 1, 2) \
@@ -150,7 +150,7 @@ static inline int alternatives_text_rese".pushsection .altinstr_replacement, \"ax\"\n" \ ALTINSTR_REPLACEMENT(newinstr1, feature1, 1) \ ALTINSTR_REPLACEMENT(newinstr2, feature2, 2) \ -".popsection" +".popsection\n" /* * Alternative instructions for different CPU types or capabilities.
Patches currently in stable-queue which might be from [email protected] are
queue-4.9/x86-spectre-add-boot-time-option-to-select-spectre-v2-mitigation.patch queue-4.9/x86-retpoline-irq32-convert-assembler-indirect-jumps.patch queue-4.9/objtool-detect-jumps-to-retpoline-thunks.patch queue-4.9/x86-cpufeatures-add-x86_bug_spectre_v.patch queue-4.9/x86-alternatives-add-missing-n-at-end-of-alternative-inline-asm.patch queue-4.9/x86-retpoline-hyperv-convert-assembler-indirect-jumps.patch queue-4.9/x86-retpoline-entry-convert-entry-assembler-indirect-jumps.patch queue-4.9/sysfs-cpu-fix-typos-in-vulnerability-documentation.patch queue-4.9/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.9/x86-cpufeatures-make-cpu-bugs-sticky.patch queue-4.9/x86-cpu-amd-make-lfence-a-serializing-instruction.patch queue-4.9/x86-retpoline-ftrace-convert-ftrace-assembler-indirect-jumps.patch queue-4.9/objtool-allow-alternatives-to-be-ignored.patch queue-4.9/x86-cpu-implement-cpu-vulnerabilites-sysfs-functions.patch queue-4.9/x86-retpoline-crypto-convert-crypto-assembler-indirect-jumps.patch queue-4.9/x86-cpu-factor-out-application-of-forced-cpu-caps.patch queue-4.9/x86-retpoline-xen-convert-xen-hypercall-indirect-jumps.patch queue-4.9/x86-retpoline-checksum32-convert-assembler-indirect-jumps.patch queue-4.9/x86-mm-32-move-setup_clear_cpu_cap-x86_feature_pcid-earlier.patch queue-4.9/sysfs-cpu-add-vulnerability-folder.patch queue-4.9/x86-retpoline-fill-return-stack-buffer-on-vmexit.patch queue-4.9/x86-pti-rename-bug_cpu_insecure-to-bug_cpu_meltdown.patch queue-4.9/x86-retpoline-remove-compile-time-warning.patch queue-4.9/x86-alternatives-fix-optimize_nops-checking.patch queue-4.9/x86-cpu-amd-use-lfence_rdtsc-in-preference-to-mfence_rdtsc.patch queue-4.9/x86-retpoline-add-initial-retpoline-support.patch