linux-azure: 4.13.0-1017.20 -proposed tracker

I'm hoping this is based off the same 4.15 that's going into bionic, 4.15.0-1010.

Our testing on this kernel is complete and we are good with publishing.

4.13.0-1017.20 - azure
Regression test CMPL.

Issue to note in x86_64 (azure):
  ebizzy - failed on Standard_A0, passed on the rest
  libhugetlbfs - 1 failed (brk_near_huge, bug 1653597), Killed by signal 1, bad config 3, passed on the rest
  monotonic_time - all three tests (or just tsc test) failed on some instances, passed on the rest
  ubuntu_docker_smoke_test - test case issue
  ubuntu_kvm_unit_tests - test skipped due to no KVM support, vmx_control will crash E4 nodes (bug 1747892)
  ubuntu_lttng_smoke_test - failed on Standard_A0 (bug 1765035) and B1s, passed on the rest
  ubuntu_lxc - lxc-test-ubuntu failed (Failed to start networking in ubuntu-cloud container, Failed creating ubuntu-cloud container due to too many open files), passed on the rest
  ubuntu_qrt_apparmor - failed on Standard_A0 only, passed on the rest
  ubuntu_stress_smoke_test - sysfs caused kernel oopsed on some instances (bug 1757057)
  ubuntu_unionmount_overlayfs_suite - Invalid cross-device link was not produced (bug 1727290)
  ubuntu_zram_smoke_test - zram module missing (bug 1762756)

Skipped / blacklisted:
  * ubuntu_ltp
  * ubuntu_seccomp
  * ubuntu_sysdig_smoke_test

This bug was fixed in the package linux-azure - 4.13.0-1018.21

---------------
linux-azure (4.13.0-1018.21) xenial; urgency=medium

  [ Ubuntu: 4.13.0-43.48 ]

  * CVE-2018-3639 (powerpc)
    - SAUCE: rfi-flush: update H_CPU_* macro names to upstream
    - SAUCE: rfi-flush: update plpar_get_cpu_characteristics() signature to
      upstream
    - SAUCE: update pseries_setup_rfi_flush() capitalization to upstream
    - powerpc/pseries: Support firmware disable of RFI flush
    - powerpc/powernv: Support firmware disable of RFI flush
    - powerpc/64s: Allow control of RFI flush via debugfs
    - powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code
    - powerpc/rfi-flush: Always enable fallback flush on pseries
    - powerpc/rfi-flush: Differentiate enabled and patched flush types
    - powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags
    - powerpc: Add security feature flags for Spectre/Meltdown
    - powerpc/powernv: Set or clear security feature flags
    - powerpc/pseries: Set or clear security feature flags
    - powerpc/powernv: Use the security flags in pnv_setup_rfi_flush()
    - powerpc/pseries: Use the security flags in pseries_setup_rfi_flush()
    - powerpc/pseries: Fix clearing of security feature flags
    - powerpc: Move default security feature flags
    - powerpc/pseries: Restore default security feature flags on setup
    - powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit
  * CVE-2018-3639 (x86)
    - SAUCE: Add X86_FEATURE_ARCH_CAPABILITIES
    - SAUCE: x86: Add alternative_msr_write
    - x86/nospec: Simplify alternative_msr_write()
    - x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
    - x86/bugs: Concentrate bug detection into a separate function
    - x86/bugs: Concentrate bug reporting into a separate function
    - x86/msr: Add definitions for new speculation control MSRs
    - x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
    - x86/bugs, KVM: Support the combination of guest and host IBRS
    - x86/bugs: Expose /sys/../spec_store_bypass
    - x86/cpufeatures: Add X86_FEATURE_RDS
    - x86/bugs: Provide boot parameters for the spec_store_bypass_disable
      mitigation
    - x86/bugs/intel: Set proper CPU features and setup RDS
    - x86/bugs: Whitelist allowed SPEC_CTRL MSR values
    - x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
    - x86/KVM/VMX: Expose SPEC_CTRL Bit(2) to the guest
    - x86/speculation: Create spec-ctrl.h to avoid include hell
    - prctl: Add speculation control prctls
    - x86/process: Allow runtime control of Speculative Store Bypass
    - x86/speculation: Add prctl for Speculative Store Bypass mitigation
    - nospec: Allow getting/setting on non-current task
    - proc: Provide details on speculation flaw mitigations
    - seccomp: Enable speculation flaw mitigations
    - SAUCE: x86/bugs: Honour SPEC_CTRL default
    - x86/bugs: Make boot modes __ro_after_init
    - prctl: Add force disable speculation
    - seccomp: Use PR_SPEC_FORCE_DISABLE
    - seccomp: Add filter flag to opt-out of SSB mitigation
    - seccomp: Move speculation migitation control to arch cod...

All tasks have been completed and the bug is being set to Fix Released