[ubuntu/trusty-updates] linux 3.13.0-155.205 (Accepted)

[Andy Whitcroft]

linux (3.13.0-155.205) trusty; urgency=medium

  * CVE-2017-18344
    - posix-timer: Properly check sigevent->sigev_notify

  * CVE-2018-5390
    - tcp: avoid collapses in tcp_prune_queue() if possible
    - tcp: detect malicious patterns in tcp_collapse_ofo_queue()

  * CVE-2018-5391
    - Revert "net: increase fragment memory usage limits"

  * CVE-2018-3620 // CVE-2018-3646
    - SAUCE: x86/cpufeatures: Add CPUID_7_EDX CPUID leaf
    - 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/topology: Create logical package id
    - x86/topology: Fix logical package mapping
    - x86/topology: Fix Intel HT disable
    - x86/topology: Use total_cpus not nr_cpu_ids for logical packages
    - x86/topology: Fix AMD core count
    - x86/smp: Provide topology_is_primary_thread()
    - x86/topology: Provide topology_smt_supported()
    - cpu/hotplug: Split do_cpu_down()
    - x86/topology: Add topology_max_smt_threads()
    - cpu/hotplug: Provide knobs to control SMT
    - [Config] updateconfigs - enable CONFIG_HOTPLUG_SMT
    - x86/CPU: Modify detect_extended_topology() to return result
    - x86/CPU/AMD: Derive CPU topology from CPUID function 0xB when available
    - 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: 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
    - SAUCE: Alternative approach to boot nosmt
    - SAUCE: x86/mce: Try register mce notifier earlier
    - KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks
    - 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
    - KVM: add kvm_arch_sched_in
    - 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: Seperate 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/apic: Order irq_enter/exit() calls correctly vs. ack_APIC_irq()
    - SAUCE: Move __this_cpu_{read,write} to percpu-ubuntu.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
    - 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: Ensure cpa->pfn only contains page frame numbers
    - SAUCE: Add pfn_pud() and pud_mkhuge()
    - x86/mm/pat: Make set_memory_np() L1TF safe

Date: 2018-08-10 15:47:12.997947+00:00
Changed-By: Juerg Haefliger <juergh at canonical.com>
Signed-By: Andy Whitcroft <apw at canonical.com>
https://launchpad.net/ubuntu/+source/linux/3.13.0-155.205
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