[El-errata] ELSA-2018-4196 Important: Oracle Linux 7 Unbreakable Enterprise kernel security update

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Tue Aug 14 12:51:59 PDT 2018


Oracle Linux Security Advisory ELSA-2018-4196

http://linux.oracle.com/errata/ELSA-2018-4196.html

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
kernel-uek-doc-4.1.12-124.18.5.el7uek.noarch.rpm
kernel-uek-firmware-4.1.12-124.18.5.el7uek.noarch.rpm
kernel-uek-4.1.12-124.18.5.el7uek.x86_64.rpm
kernel-uek-devel-4.1.12-124.18.5.el7uek.x86_64.rpm
kernel-uek-debug-4.1.12-124.18.5.el7uek.x86_64.rpm
kernel-uek-debug-devel-4.1.12-124.18.5.el7uek.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/kernel-uek-4.1.12-124.18.5.el7uek.src.rpm



Description of changes:

[4.1.12-124.18.5.el7uek]
- inet: frag: enforce memory limits earlier (Eric Dumazet)  [Orabug: 
28450977]
- x86/mm/pageattr.c: fix page prot mask (Mihai Carabas)  [Orabug: 28492122]
- x86/pgtable.h: fix PMD/PUD mask (Mihai Carabas)  [Orabug: 28492122]
- x86/asm: Add pud/pmd mask interfaces to handle large PAT bit (Toshi 
Kani)  [Orabug: 28492122]

[4.1.12-124.18.4.el7uek]
- kvm/vmx: Don't mark vmx_exit() __exit (Boris Ostrovsky)  [Orabug: 
28491688]
- x86/speculation: Don't mark cpu_no_l1tf __initconst (Boris Ostrovsky) 
[Orabug: 28491688]
- x86/speculation: parse l1tf boot parameter early (Boris Ostrovsky) 
[Orabug: 28491688]

[4.1.12-124.18.3.el7uek]
- posix-timer: Properly check sigevent->sigev_notify (Thomas Gleixner) 
[Orabug: 28481412]  {CVE-2017-18344}

[4.1.12-124.18.2.el7uek]
- x86/mm/kmmio: Make the tracer robust against L1TF (Andi Kleen) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/mm/pat: Make set_memory_np() L1TF safe (Andi Kleen)  [Orabug: 
28220674]  {CVE-2018-3620}
- x86/mm/pat: Ensure cpa->pfn only contains page frame numbers (Matt 
Fleming)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert (Andi Kleen) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Invert all not present mappings (Andi Kleen) 
[Orabug: 28220674]  {CVE-2018-3620}
- cpu/hotplug: Fix SMT supported evaluation (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3620}
- KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry 
(Paolo Bonzini)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry 
(Paolo Bonzini)  [Orabug: 28220674]  {CVE-2018-3620}
- KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES (KarimAllah Ahmed) 
[Orabug: 28220674]  {CVE-2018-3646}
- x86/speculation: Simplify sysfs report of VMX L1TF vulnerability 
(Paolo Bonzini)  [Orabug: 28220674]  {CVE-2018-3620}
- Documentation/l1tf: Remove Yonah processors from not vulnerable list 
(Thomas Gleixner)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr() 
(Nicolai Stange)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d (Nicolai 
Stange)  [Orabug: 28220674]  {CVE-2018-3646}
- x86: Don't include linux/irq.h from asm/hardirq.h (Nicolai Stange) 
[Orabug: 28220625]  {CVE-2018-3620}
- x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d 
(Nicolai Stange)  [Orabug: 28220625]  {CVE-2018-3646}
- x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush() (Nicolai 
Stange)  [Orabug: 28220625]  {CVE-2018-3646}
- x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond' 
(Nicolai Stange)  [Orabug: 28220625]  {CVE-2018-3646}
- x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush() 
(Nicolai Stange)  [Orabug: 28220625]  {CVE-2018-3646}
- KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR (Paolo 
Bonzini)  [Orabug: 28220625]  {CVE-2018-3646}
- KVM: X86: Introduce kvm_get_msr_feature() (Wanpeng Li)  [Orabug: 
28220674]  {CVE-2018-3646}
- KVM: x86: Add a framework for supporting MSR-based features (Tom 
Lendacky)  [Orabug: 28220674]  {CVE-2018-3646}
- cpu/hotplug: detect SMT disabled by BIOS (Josh Poimboeuf)  [Orabug: 
28220674]  {CVE-2018-3620}
- Documentation/l1tf: Fix typos (Tony Luck)  [Orabug: 28220674] 
{CVE-2018-3620}
- x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content (Nicolai 
Stange)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/speculation/l1tf: Unbreak !__HAVE_ARCH_PFN_MODIFY_ALLOWED 
architectures (Jiri Kosina)  [Orabug: 28220674]  {CVE-2018-3620}
- Documentation: Add section about CPU vulnerabilities (Thomas Gleixner) 
  [Orabug: 28220674]  {CVE-2018-3620}
- x86/bugs, kvm: Introduce boot-time control of L1TF mitigations (Jiri 
Kosina)  [Orabug: 28220674]  {CVE-2018-3646}
- cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- cpu/hotplug: Expose SMT control init function (Jiri Kosina)  [Orabug: 
28220674]  {CVE-2018-3620}
- x86/kvm: Allow runtime control of L1D flush (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3646}
- x86/kvm: Serialize L1D flush parameter setter (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3646}
- x86/kvm: Add static key for flush always (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3646}
- x86/kvm: Move l1tf setup function (Thomas Gleixner)  [Orabug: 
28220625]  {CVE-2018-3646}
- x86/l1tf: Handle EPT disabled state proper (Thomas Gleixner)  [Orabug: 
28220625]  {CVE-2018-3620}
- x86/kvm: Drop L1TF MSR list approach (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3646}
- x86/litf: Introduce vmx status variable (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3620}
- cpu/hotplug: Online siblings when SMT control is turned on (Thomas 
Gleixner)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required (Konrad 
Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs 
(Konrad Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting 
(Konrad Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Add find_msr() helper function (Konrad Rzeszutek Wilk) 
[Orabug: 28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest 
numbers (Konrad Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Add L1D flush logic (Paolo Bonzini)  [Orabug: 28220674] 
{CVE-2018-3646}
- x86/KVM/VMX: Add L1D MSR based flush (Paolo Bonzini)  [Orabug: 
28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Add L1D flush algorithm (Paolo Bonzini)  [Orabug: 
28220674]  {CVE-2018-3646}
- x86/KVM/VMX: Add module argument for L1TF mitigation (Konrad Rzeszutek 
Wilk)  [Orabug: 28220674]  {CVE-2018-3646} {CVE-2018-3646}
- locking/static_keys: Add static_key_{en,dis}able() helpers (Peter 
Zijlstra)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present 
(Konrad Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3646}
- KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks (Suravee 
Suthikulpanit)  [Orabug: 28220674]  {CVE-2018-3646}
- cpu/hotplug: Boot HT siblings at least once (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- Revert "x86/apic: Ignore secondary threads if nosmt=force" (Thomas 
Gleixner)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Fix up pte->pfn conversion for PAE (Michal 
Hocko)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Protect PAE swap entries against L1TF (Vlastimil 
Babka)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings 
(Borislav Petkov)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/cpufeatures: Add detection of L1D cache flush support. (Konrad 
Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Extend 64bit swap file size limit (Vlastimil 
Babka)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/apic: Ignore secondary threads if nosmt=force (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/cpu/AMD: Evaluate smp_num_siblings early (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info 
(Borislav Petkov)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/cpu/intel: Evaluate smp_num_siblings early (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/cpu/topology: Provide detect_extended_topology_early() (Thomas 
Gleixner)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/cpu/common: Provide detect_ht_early() (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3620}
- x86/cpu/AMD: Remove the pointless detect_ht() call (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/cpu: Remove the pointless CPU printout (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3620}
- cpu/hotplug: Provide knobs to control SMT (Thomas Gleixner)  [Orabug: 
28220674]  {CVE-2018-3620}
- x86/topology: Add topology_max_smt_threads() (Andi Kleen)  [Orabug: 
28220674]  {CVE-2018-3620}
- cpu/hotplug: Split do_cpu_down() (Thomas Gleixner)  [Orabug: 28220674] 
  {CVE-2018-3620}
- x86/topology: Provide topology_smt_supported() (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/smp: Provide topology_is_primary_thread() (Thomas Gleixner) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/bugs: Move the l1tf function and define pr_fmt properly (Konrad 
Rzeszutek Wilk)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Limit swap file size to MAX_PA/2 (Andi Klein) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE 
mappings (Andi Klein)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Add sysfs reporting for l1tf (Andi Klein) 
[Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Make sure the first page is always reserved 
(Andi Klein)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation (Andi 
Klein)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Protect swap entries against L1TF (Linus 
Torvalds)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Change order of offset/type in swap entry (Linus 
Torvalds)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT (Andi 
Klein)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/mm: Limit mmap() of /dev/mem to valid physical addresses (Craig 
Bergstrom)  [Orabug: 28220674]  {CVE-2018-3620}
- x86/mm: Prevent non-MAP_FIXED mapping across DEFAULT_MAP_WINDOW border 
(Kirill A. Shutemov)  [Orabug: 28220674]  {CVE-2018-3620}




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