Unbreakable Enterprise kernel security update

[2.6.39-400.298.2]

• x86: Use PRED_CMD MSR when ibpb is enabled (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/spec: Dont print the Missing arguments for option spectre_v2 (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: Move ENABLE_IBRS in the interrupt macro (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• Add set_ibrs_disabled and set_ibpb_disabled (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/boot: Add early cmdline parsing for options with arguments (Tom Lendacky) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86, boot: Carve out early cmdline parsing function (Borislav Petkov) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: Fix kABI build breakage (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: Add command-line options ‘spectre_v2’ and ‘nospectre_v2’ (Kanth Ghatraju) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/mm: Set IBPB upon context switch (Brian Maly) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: Display correct settings for the SPECTRE_V2 bug (Kanth Ghatraju) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• Set CONFIG_GENERIC_CPU_VULNERABILITIES flag (Kanth Ghatraju) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/cpu: Implement CPU vulnerabilites sysfs functions (Thomas Gleixner) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• sysfs/cpu: Fix typos in vulnerability documentation (David Woodhouse) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• sysfs/cpu: Add vulnerability folder (Thomas Gleixner) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86, cpu: Expand cpufeature facility to include cpu bugs (Borislav Petkov) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/cpufeatures: Add X86_BUG_SPECTRE_V[12] (David Woodhouse) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/cpufeatures: Add X86_BUG_CPU_MELTDOWN (Kanth Ghatraju) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/spec: STUFF_RSB before ENABLE_IBRS (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: Move STUFF_RSB in to the idt macro (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/IBRS/IBPB: Set sysctl_ibrs/ibpb_enabled properly (Boris Ostrovsky) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/IBRS: Make sure we restore MSR_IA32_SPEC_CTRL to a valid value (Boris Ostrovsky) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/spec_ctrl: Add missing ‘lfence’ when IBRS is not supported (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/ia32: Move STUFF_RSB And ENABLE_IBRS (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/entry: Stuff RSB for entry to kernel for non-SMEP platform (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: Use IBRS for firmware update path (David Woodhouse) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/spec_ctrl: Disable if running as Xen PV guest (Konrad Rzeszutek Wilk) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/microcode: Recheck IBRS features on microcode reload (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/idle: Disable IBRS entering idle and enable it on wakeup (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/enter: Use IBRS on syscall and interrupts (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/enter: MACROS to set/clear IBRS and set IBPB (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86/feature: Detect the x86 IBRS feature to control Speculation (Tim Chen) [Orabug: 27369777] {CVE-2017-5715} {CVE-2017-5753}
• x86: fix build breakage (Brian Maly) [Orabug: 27346425] {CVE-2017-5753}
• kaiser: rename X86_FEATURE_KAISER to X86_FEATURE_PTI to match upstream (Mike Kravetz) {CVE-2017-5754}
• x86/kaiser: Check boottime cmdline params (Mike Kravetz) [Orabug: 27333761] {CVE-2017-5754}
• x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling (Borislav Petkov) [Orabug: 27333761] {CVE-2017-5754}
• KPTI: Report when enabled (Mike Kravetz) [Orabug: 27333761] {CVE-2017-5754}
• PTI: unbreak EFI old_memmap (Jiri Kosina) [Orabug: 27333761] [Orabug: 27333760] {CVE-2017-5754}
• kaiser: Set _PAGE_NX only if supported (Guenter Roeck) [Orabug: 27333761] [Orabug: 27333760] {CVE-2017-5754}
• KPTI: Rename to PAGE_TABLE_ISOLATION (Kees Cook) [Orabug: 27333761] {CVE-2017-5754}
• kaiser: kaiser_flush_tlb_on_return_to_user() check PCID (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• kaiser: asm/tlbflush.h handle noPGE at lower level (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• x86/alternatives: add asm ALTERNATIVE macro (Mike Kravetz) [Orabug: 27333761] {CVE-2017-5754}
• x86/kaiser: Reenable PARAVIRT, dynamically disable KAISER if PARAVIRT (Borislav Petkov) [Orabug: 27333761] {CVE-2017-5754}
• kaiser: add ‘nokaiser’ boot option, using ALTERNATIVE (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• x86-32: Fix boot with CONFIG_X86_INVD_BUG (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• kaiser: alloc_ldt_struct() use get_zeroed_page() (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• kaiser: user_map __kprobes_text too (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm/kaiser: re-enable vsyscalls (Andrea Arcangeli) [Orabug: 27333761] {CVE-2017-5754}
• KAISER: Kernel Address Isolation (Hugh Dickins) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: fix bad backport to disable PCID on Xen (Borislav Petkov) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm/64: Fix reboot interaction with CR4.PCIDE (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Enable CR4.PCIDE on supported systems (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Add the ‘nopcid’ boot option to turn off PCID (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Disable PCID on 32-bit kernels (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP code (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• sched/core: Idle_task_exit() shouldnt use switch_mm_irqs_off() (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm, sched/core: Turn off IRQs in switch_mm() (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm, sched/core: Uninline switch_mm() (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Build arch/x86/mm/tlb.c even on !SMP (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• sched/core: Add switch_mm_irqs_off() and use it in the scheduler (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• mm/mmu_context, sched/core: Fix mmu_context.h assumption (Ingo Molnar) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: If INVPCID is available, use it to flush global mappings (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Add a ‘noinvpcid’ boot option to turn off INVPCID (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Fix INVPCID asm constraint (Borislav Petkov) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Add INVPCID helpers (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86, cpufeature: Add CPU features from Intel document 319433-012A (H. Peter Anvin) [Orabug: 27333761] {CVE-2017-5754}
• x86/paravirt: Dont patch flush_tlb_single (Thomas Gleixner) [Orabug: 27333761] {CVE-2017-5754}
• x86-64: Map the HPET NX (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754}
• x86/ldt: Make modify_ldt synchronous (Andy Lutomirski) [Orabug: 27333761] {CVE-2017-5754} {CVE-2015-5157}
• x86, cpu: Add cpufeature flag for PCIDs (Arun Thomas) [Orabug: 27333761] {CVE-2017-5754}
• x86/mm: Disable preemption during CR3 read+write (Sebastian Andrzej Siewior) [Orabug: 27333761] {CVE-2017-5754}
• locking/barriers: fix compile issue (Brian Maly) [Orabug: 27346425] {CVE-2017-5753}
• x86: Add another set of MSR accessor functions (Borislav Petkov) [Orabug: 27346425] {CVE-2017-5753}
• udf: prevent speculative execution (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• fs: prevent speculative execution (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• qla2xxx: prevent speculative execution (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• p54: prevent speculative execution (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• carl9170: prevent speculative execution (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• uvcvideo: prevent speculative execution (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• locking/barriers: introduce new observable speculation barrier (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}
• x86/cpu/AMD: Make the LFENCE instruction serialized (Elena Reshetova) [Orabug: 27346425] {CVE-2017-5753}