[ubuntu/bionic-security] linux-kvm 4.15.0-1019.19 (Accepted)

[Andy Whitcroft]

linux-kvm (4.15.0-1019.19) bionic; urgency=medium

  [ Ubuntu: 4.15.0-32.34 ]

  * CVE-2018-5391
    - Revert "net: increase fragment memory usage limits"
  * CVE-2018-3620 // CVE-2018-3646
    - x86/Centaur: Initialize supported CPU features properly
    - x86/Centaur: Report correct CPU/cache topology
    - x86/CPU/AMD: Have smp_num_siblings and cpu_llc_id always be present
    - perf/events/amd/uncore: Fix amd_uncore_llc ID to use pre-defined cpu_llc_id
    - x86/CPU: Rename intel_cacheinfo.c to cacheinfo.c
    - x86/CPU/AMD: Calculate last level cache ID from number of sharing threads
    - x86/CPU: Modify detect_extended_topology() to return result
    - x86/CPU/AMD: Derive CPU topology from CPUID function 0xB when available
    - x86/CPU: Move cpu local function declarations to local header
    - x86/CPU: Make intel_num_cpu_cores() generic
    - x86/CPU: Move cpu_detect_cache_sizes() into init_intel_cacheinfo()
    - x86/CPU: Move x86_cpuinfo::x86_max_cores assignment to
      detect_num_cpu_cores()
    - x86/CPU/AMD: Fix LLC ID bit-shift calculation
    - x86/mm: Factor out pageattr _PAGE_GLOBAL setting
    - x86/mm: Undo double _PAGE_PSE clearing
    - x86/mm: Introduce "default" kernel PTE mask
    - x86/espfix: Document use of _PAGE_GLOBAL
    - x86/mm: Do not auto-massage page protections
    - x86/mm: Remove extra filtering in pageattr code
    - x86/mm: Comment _PAGE_GLOBAL mystery
    - x86/mm: Do not forbid _PAGE_RW before init for __ro_after_init
    - x86/ldt: Fix support_pte_mask filtering in map_ldt_struct()
    - x86/power/64: Fix page-table setup for temporary text mapping
    - x86/pti: Filter at vma->vm_page_prot population
    - x86/boot/64/clang: Use fixup_pointer() to access '__supported_pte_mask'
    - x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT
    - x86/speculation/l1tf: Change order of offset/type in swap entry
    - x86/speculation/l1tf: Protect swap entries against L1TF
    - x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation
    - x86/speculation/l1tf: Make sure the first page is always reserved
    - x86/speculation/l1tf: Add sysfs reporting for l1tf
    - x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings
    - x86/speculation/l1tf: Limit swap file size to MAX_PA/2
    - x86/bugs: Move the l1tf function and define pr_fmt properly
    - sched/smt: Update sched_smt_present at runtime
    - x86/smp: Provide topology_is_primary_thread()
    - x86/topology: Provide topology_smt_supported()
    - cpu/hotplug: Make bringup/teardown of smp threads symmetric
    - cpu/hotplug: Split do_cpu_down()
    - cpu/hotplug: Provide knobs to control SMT
    - x86/cpu: Remove the pointless CPU printout
    - x86/cpu/AMD: Remove the pointless detect_ht() call
    - x86/cpu/common: Provide detect_ht_early()
    - x86/cpu/topology: Provide detect_extended_topology_early()
    - x86/cpu/intel: Evaluate smp_num_siblings early
    - x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info
    - x86/cpu/AMD: Evaluate smp_num_siblings early
    - x86/apic: Ignore secondary threads if nosmt=force
    - x86/speculation/l1tf: Extend 64bit swap file size limit
    - x86/cpufeatures: Add detection of L1D cache flush support.
    - x86/CPU/AMD: Move TOPOEXT reenablement before reading smp_num_siblings
    - x86/speculation/l1tf: Protect PAE swap entries against L1TF
    - x86/speculation/l1tf: Fix up pte->pfn conversion for PAE
    - Revert "x86/apic: Ignore secondary threads if nosmt=force"
    - cpu/hotplug: Boot HT siblings at least once
    - x86/KVM: Warn user if KVM is loaded SMT and L1TF CPU bug being present
    - x86/KVM/VMX: Add module argument for L1TF mitigation
    - x86/KVM/VMX: Add L1D flush algorithm
    - x86/KVM/VMX: Add L1D MSR based flush
    - x86/KVM/VMX: Add L1D flush logic
    - x86/KVM/VMX: Split the VMX MSR LOAD structures to have an host/guest numbers
    - x86/KVM/VMX: Add find_msr() helper function
    - x86/KVM/VMX: Separate the VMX AUTOLOAD guest/host number accounting
    - x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs
    - x86/KVM/VMX: Use MSR save list for IA32_FLUSH_CMD if required
    - cpu/hotplug: Online siblings when SMT control is turned on
    - x86/litf: Introduce vmx status variable
    - x86/kvm: Drop L1TF MSR list approach
    - x86/l1tf: Handle EPT disabled state proper
    - x86/kvm: Move l1tf setup function
    - x86/kvm: Add static key for flush always
    - x86/kvm: Serialize L1D flush parameter setter
    - x86/kvm: Allow runtime control of L1D flush
    - cpu/hotplug: Expose SMT control init function
    - cpu/hotplug: Set CPU_SMT_NOT_SUPPORTED early
    - x86/bugs, kvm: Introduce boot-time control of L1TF mitigations
    - Documentation: Add section about CPU vulnerabilities
    - x86/speculation/l1tf: Unbreak !__HAVE_ARCH_PFN_MODIFY_ALLOWED architectures
    - x86/KVM/VMX: Initialize the vmx_l1d_flush_pages' content
    - Documentation/l1tf: Fix typos
    - cpu/hotplug: detect SMT disabled by BIOS
    - x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()
    - x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'
    - x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()
    - x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
    - x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d
    - x86: Don't include linux/irq.h from asm/hardirq.h
    - x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d
    - x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()
    - Documentation/l1tf: Remove Yonah processors from not vulnerable list
    - x86/speculation: Simplify sysfs report of VMX L1TF vulnerability
    - x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
    - KVM: x86: Add a framework for supporting MSR-based features
    - KVM: X86: Introduce kvm_get_msr_feature()
    - KVM: VMX: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR
    - KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry
    - cpu/hotplug: Fix SMT supported evaluation
    - x86/speculation/l1tf: Invert all not present mappings
    - x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert
    - x86/mm/pat: Make set_memory_np() L1TF safe

Date: 2018-08-10 10:17:12.630566+00:00
Changed-By: Stefan Bader <stefan.bader at canonical.com>
Signed-By: Andy Whitcroft <apw at canonical.com>
https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1019.19
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