Bug #1742771 “s390: add ppa to kernel entry/exit” : Bugs : Ubuntu on IBM z Systems

Revision history for this message

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2018-01-11: Missing required logs.

#1

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1742771

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status:	New → Incomplete
Changed in linux (Ubuntu Artful):
status:	New → Incomplete
Changed in linux (Ubuntu Xenial):
status:	New → Incomplete

Marcelo Cerri (mhcerri) on 2018-01-11

Changed in linux (Ubuntu):
status:	Incomplete → In Progress
Changed in linux (Ubuntu Xenial):
status:	Incomplete → In Progress
Changed in linux (Ubuntu Artful):
status:	Incomplete → In Progress

Marcelo Cerri (mhcerri) on 2018-01-11

Changed in linux (Ubuntu Artful):
status:	In Progress → Fix Committed

Marcelo Cerri (mhcerri) on 2018-01-12

Changed in linux (Ubuntu Xenial):
status:	In Progress → Fix Committed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2018-01-22:

#2

Download full text (11.5 KiB)

This bug was fixed in the package linux - 4.13.0-31.34

---------------
linux (4.13.0-31.34) artful; urgency=low

* linux: 4.13.0-31.34 -proposed tracker (LP: #1744294)

  [ Stefan Bader ]
  * CVE-2017-5715 // CVE-2017-5753
    - SAUCE: s390: improve cpu alternative handling for gmb and nobp
    - SAUCE: s390: print messages for gmb and nobp
    - [Config] KERNEL_NOBP=y

linux (4.13.0-30.33) artful; urgency=low

* linux: 4.13.0-30.33 -proposed tracker (LP: #1743412)

  * Do not duplicate changelog entries assigned to more than one bug or CVE
    (LP: #1743383)
    - [Packaging] git-ubuntu-log -- handle multiple bugs/cves better

  * Unable to handle kernel NULL pointer dereference at isci_task_abort_task
    (LP: #1726519)
    - Revert "scsi: libsas: allow async aborts"

  * CVE-2017-5715 // CVE-2017-5753
    - SAUCE: x86/microcode: Extend post microcode reload to support IBPB feature
      -- repair missmerge
    - Revert "x86/svm: Add code to clear registers on VM exit"
    - kvm: vmx: Scrub hardware GPRs at VM-exit

linux (4.13.0-29.32) artful; urgency=low

* linux: 4.13.0-29.32 -proposed tracker (LP: #1742722)

  * CVE-2017-5754
    - Revert "x86/cpu: Implement CPU vulnerabilites sysfs functions"
    - Revert "sysfs/cpu: Fix typos in vulnerability documentation"
    - Revert "sysfs/cpu: Add vulnerability folder"
    - Revert "UBUNTU: [Config] updateconfigs to enable
      GENERIC_CPU_VULNERABILITIES"

linux (4.13.0-28.31) artful; urgency=low

* CVE-2017-5753
- SAUCE: x86/kvm: Fix stuff_RSB() for 32-bit

* CVE-2017-5715
- SAUCE: x86/kvm: Fix stuff_RSB() for 32-bit

linux (4.13.0-27.30) artful; urgency=low

  [ Andy Whitcroft ]
  * CVE-2017-5753
    - locking/barriers: introduce new memory barrier gmb()
    - bpf: prevent speculative execution in eBPF interpreter
    - x86, bpf, jit: prevent speculative execution when JIT is enabled
    - uvcvideo: prevent speculative execution
    - carl9170: prevent speculative execution
    - p54: prevent speculative execution
    - qla2xxx: prevent speculative execution
    - cw1200: prevent speculative execution
    - Thermal/int340x: prevent speculative execution
    - userns: prevent speculative execution
    - ipv6: prevent speculative execution
    - fs: prevent speculative execution
    - net: mpls: prevent speculative execution
    - udf: prevent speculative execution
    - x86/feature: Enable the x86 feature to control Speculation
    - x86/feature: Report presence of IBPB and IBRS control
    - x86/enter: MACROS to set/clear IBRS and set IBPB
    - x86/enter: Use IBRS on syscall and interrupts
    - x86/idle: Disable IBRS entering idle and enable it on wakeup
    - x86/idle: Disable IBRS when offlining cpu and re-enable on wakeup
    - x86/mm: Set IBPB upon context switch
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
    - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
    - x86/kvm: Set IBPB when switching VM
    - x86/kvm: Toggle IBRS on VM entry and exit
    - x86/kvm: Pad RSB on VM transition
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL fea...

This bug was fixed in the package linux - 4.13.0-31.34

---------------
linux (4.13.0-31.34) artful; urgency=low

* linux: 4.13.0-31.34 -proposed tracker (LP: #1744294)

[ Stefan Bader ]
  * CVE-2017-5715 // CVE-2017-5753
    - SAUCE: s390: improve cpu alternative handling for gmb and nobp
    - SAUCE: s390: print messages for gmb and nobp
    - [Config] KERNEL_NOBP=y

linux (4.13.0-30.33) artful; urgency=low

* linux: 4.13.0-30.33 -proposed tracker (LP: #1743412)

* Do not duplicate changelog entries assigned to more than one bug or CVE
    (LP: #1743383)
    - [Packaging] git-ubuntu-log -- handle multiple bugs/cves better

* Unable to handle kernel NULL pointer dereference at isci_task_abort_task
    (LP: #1726519)
    - Revert "scsi: libsas: allow async aborts"

* CVE-2017-5715 // CVE-2017-5753
    - SAUCE: x86/microcode: Extend post microcode reload to support IBPB feature
      -- repair missmerge
    - Revert "x86/svm: Add code to clear registers on VM exit"
    - kvm: vmx: Scrub hardware GPRs at VM-exit

linux (4.13.0-29.32) artful; urgency=low

* linux: 4.13.0-29.32 -proposed tracker (LP: #1742722)

* CVE-2017-5754
    - Revert "x86/cpu: Implement CPU vulnerabilites sysfs functions"
    - Revert "sysfs/cpu: Fix typos in vulnerability documentation"
    - Revert "sysfs/cpu: Add vulnerability folder"
    - Revert "UBUNTU: [Config] updateconfigs to enable
      GENERIC_CPU_VULNERABILITIES"

linux (4.13.0-28.31) artful; urgency=low

* CVE-2017-5753
    - SAUCE: x86/kvm: Fix stuff_RSB() for 32-bit

* CVE-2017-5715
    - SAUCE: x86/kvm: Fix stuff_RSB() for 32-bit

linux (4.13.0-27.30) artful; urgency=low

[ Andy Whitcroft ]
  * CVE-2017-5753
    - locking/barriers: introduce new memory barrier gmb()
    - bpf: prevent speculative execution in eBPF interpreter
    - x86, bpf, jit: prevent speculative execution when JIT is enabled
    - uvcvideo: prevent speculative execution
    - carl9170: prevent speculative execution
    - p54: prevent speculative execution
    - qla2xxx: prevent speculative execution
    - cw1200: prevent speculative execution
    - Thermal/int340x: prevent speculative execution
    - userns: prevent speculative execution
    - ipv6: prevent speculative execution
    - fs: prevent speculative execution
    - net: mpls: prevent speculative execution
    - udf: prevent speculative execution
    - x86/feature: Enable the x86 feature to control Speculation
    - x86/feature: Report presence of IBPB and IBRS control
    - x86/enter: MACROS to set/clear IBRS and set IBPB
    - x86/enter: Use IBRS on syscall and interrupts
    - x86/idle: Disable IBRS entering idle and enable it on wakeup
    - x86/idle: Disable IBRS when offlining cpu and re-enable on wakeup
    - x86/mm: Set IBPB upon context switch
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
    - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
    - x86/kvm: Set IBPB when switching VM
    - x86/kvm: Toggle IBRS on VM entry and exit
    - x86/kvm: Pad RSB on VM transition
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
    - x86/spec_ctrl: Add lock to serialize changes to ibrs and ibpb control
    - x86/syscall: Clear unused extra registers on syscall entrance
    - x86/syscall: Clear unused extra registers on 32-bit compatible syscall
      entrance
    - x86/entry: Use retpoline for syscall's indirect calls
    - x86/cpu/AMD: Add speculative control support for AMD
    - x86/microcode: Extend post microcode reload to support IBPB feature
    - KVM: SVM: Do not intercept new speculative control MSRs
    - x86/svm: Set IBRS value on VM entry and exit
    - x86/svm: Set IBPB when running a different VCPU
    - KVM: x86: Add speculative control CPUID support for guests
    - x86/svm: Add code to clobber the RSB on VM exit
    - x86/svm: Add code to clear registers on VM exit
    - x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature
    - powerpc: add gmb barrier
    - s390/spinlock: add gmb memory barrier
    - x86/microcode/AMD: Add support for fam17h microcode loading

* CVE-2017-5715
    - locking/barriers: introduce new memory barrier gmb()
    - bpf: prevent speculative execution in eBPF interpreter
    - x86, bpf, jit: prevent speculative execution when JIT is enabled
    - uvcvideo: prevent speculative execution
    - carl9170: prevent speculative execution
    - p54: prevent speculative execution
    - qla2xxx: prevent speculative execution
    - cw1200: prevent speculative execution
    - Thermal/int340x: prevent speculative execution
    - userns: prevent speculative execution
    - ipv6: prevent speculative execution
    - fs: prevent speculative execution
    - net: mpls: prevent speculative execution
    - udf: prevent speculative execution
    - x86/feature: Enable the x86 feature to control Speculation
    - x86/feature: Report presence of IBPB and IBRS control
    - x86/enter: MACROS to set/clear IBRS and set IBPB
    - x86/enter: Use IBRS on syscall and interrupts
    - x86/idle: Disable IBRS entering idle and enable it on wakeup
    - x86/idle: Disable IBRS when offlining cpu and re-enable on wakeup
    - x86/mm: Set IBPB upon context switch
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
    - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
    - x86/kvm: Set IBPB when switching VM
    - x86/kvm: Toggle IBRS on VM entry and exit
    - x86/kvm: Pad RSB on VM transition
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
    - x86/spec_ctrl: Add lock to serialize changes to ibrs and ibpb control
    - x86/syscall: Clear unused extra registers on syscall entrance
    - x86/syscall: Clear unused extra registers on 32-bit compatible syscall
      entrance
    - x86/entry: Use retpoline for syscall's indirect calls
    - x86/cpu/AMD: Add speculative control support for AMD
    - x86/microcode: Extend post microcode reload to support IBPB feature
    - KVM: SVM: Do not intercept new speculative control MSRs
    - x86/svm: Set IBRS value on VM entry and exit
    - x86/svm: Set IBPB when running a different VCPU
    - KVM: x86: Add speculative control CPUID support for guests
    - x86/svm: Add code to clobber the RSB on VM exit
    - x86/svm: Add code to clear registers on VM exit
    - x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature
    - powerpc: add gmb barrier
    - s390/spinlock: add gmb memory barrier
    - x86/microcode/AMD: Add support for fam17h microcode loading

* CVE-2017-5754
    - x86/pti: Enable PTI by default
    - x86/pti: Make sure the user/kernel PTEs match
    - x86/dumpstack: Fix partial register dumps
    - x86/dumpstack: Print registers for first stack frame
    - x86/process: Define cpu_tss_rw in same section as declaration
    - x86/mm: Set MODULES_END to 0xffffffffff000000
    - x86/mm: Map cpu_entry_area at the same place on 4/5 level
    - x86/kaslr: Fix the vaddr_end mess
    - x86/events/intel/ds: Use the proper cache flush method for mapping ds
      buffers
    - x86/tlb: Drop the _GPL from the cpu_tlbstate export
    - x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
    - x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
    - x86/pti: Unbreak EFI old_memmap
    - x86/Documentation: Add PTI description
    - x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]
    - sysfs/cpu: Add vulnerability folder
    - x86/cpu: Implement CPU vulnerabilites sysfs functions
    - x86/tboot: Unbreak tboot with PTI enabled
    - x86/mm/pti: Remove dead logic in pti_user_pagetable_walk*()
    - x86/cpu/AMD: Make LFENCE a serializing instruction
    - x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
    - sysfs/cpu: Fix typos in vulnerability documentation
    - x86/alternatives: Fix optimize_nops() checking
    - x86/pti: Make unpoison of pgd for trusted boot work for real
    - s390: introduce CPU alternatives
    - s390: add ppa to kernel entry / exit
    - SAUCE: powerpc: Secure memory rfi flush
    - SAUCE: rfi-flush: Make DEBUG_RFI a CONFIG option
    - SAUCE: rfi-flush: Add HRFI_TO_UNKNOWN and use it in denorm
    - SAUCE: rfi-flush: kvmppc_skip_(H)interrupt returns to host kernel
    - SAUCE: KVM: Revert the implementation of H_GET_CPU_CHARACTERISTICS
    - SAUCE: rfi-flush: Implement congruence-first fallback flush
    - SAUCE: rfi-flush: Make l1d_flush_type bit flags
    - SAUCE: rfi-flush: Push the instruction selection down to the patching
      routine
    - SAUCE: rfi-flush: Expand the RFI section to two nop slots
    - SAUCE: rfi-flush: Support more than one flush type at once
    - SAUCE: rfi-flush: Allow HV to advertise multiple flush types
    - SAUCE: rfi-flush: Add speculation barrier before ori 30,30,0 flush
    - SAUCE: rfi-flush: Add barriers to the fallback L1D flushing
    - SAUCE: rfi-flush: Rework powernv logic to be more cautious
    - SAUCE: rfi-flush: Rework pseries logic to be more cautious
    - SAUCE: rfi-flush: Put the fallback flushes in the real trampoline section
    - SAUCE: rfi-flush: Fix the fallback flush to actually activate
    - SAUCE: rfi-flush: Fix HRFI_TO_UNKNOWN
    - SAUCE: rfi-flush: Refactor the macros so the nops are defined once
    - SAUCE: rfi-flush: Add no_rfi_flush and nopti comandline options
    - SAUCE: rfi-flush: Use rfi-flush in printks
    - SAUCE: rfi-flush: Fallback flush add load dependency
    - SAUCE: rfi-flush: Fix the 32-bit KVM build
    - SAUCE: rfi-flush: Fix some RFI conversions in the KVM code
    - SAUCE: rfi-flush: Make the fallback robust against memory corruption
    - [Config] Disable CONFIG_PPC_DEBUG_RFI
    - [Config] updateconfigs to enable GENERIC_CPU_VULNERABILITIES

* powerpc: flush L1D on return to use (LP: #1742772)
    - SAUCE: powerpc: Secure memory rfi flush
    - SAUCE: rfi-flush: Make DEBUG_RFI a CONFIG option
    - SAUCE: rfi-flush: Add HRFI_TO_UNKNOWN and use it in denorm
    - SAUCE: rfi-flush: kvmppc_skip_(H)interrupt returns to host kernel
    - SAUCE: KVM: Revert the implementation of H_GET_CPU_CHARACTERISTICS
    - SAUCE: rfi-flush: Implement congruence-first fallback flush
    - SAUCE: rfi-flush: Make l1d_flush_type bit flags
    - SAUCE: rfi-flush: Push the instruction selection down to the patching
      routine
    - SAUCE: rfi-flush: Expand the RFI section to two nop slots
    - SAUCE: rfi-flush: Support more than one flush type at once
    - SAUCE: rfi-flush: Allow HV to advertise multiple flush types
    - SAUCE: rfi-flush: Add speculation barrier before ori 30,30,0 flush
    - SAUCE: rfi-flush: Add barriers to the fallback L1D flushing
    - SAUCE: rfi-flush: Rework powernv logic to be more cautious
    - SAUCE: rfi-flush: Rework pseries logic to be more cautious
    - SAUCE: rfi-flush: Put the fallback flushes in the real trampoline section
    - SAUCE: rfi-flush: Fix the fallback flush to actually activate
    - SAUCE: rfi-flush: Fix HRFI_TO_UNKNOWN
    - SAUCE: rfi-flush: Refactor the macros so the nops are defined once
    - SAUCE: rfi-flush: Add no_rfi_flush and nopti comandline options
    - SAUCE: rfi-flush: Use rfi-flush in printks
    - SAUCE: rfi-flush: Fallback flush add load dependency
    - SAUCE: rfi-flush: Fix the 32-bit KVM build
    - SAUCE: rfi-flush: Fix some RFI conversions in the KVM code
    - SAUCE: rfi-flush: Make the fallback robust against memory corruption
    - [Config] Disable CONFIG_PPC_DEBUG_RFI

* s390: add ppa to kernel entry/exit (LP: #1742771)
    - s390: introduce CPU alternatives
    - s390: add ppa to kernel entry / exit

-- Marcelo Henrique Cerri <marcelo.cerri@canonical.com>  Fri, 19 Jan 2018 09:56:09 -0200

Changed in linux (Ubuntu Artful):
status:	Fix Committed → Fix Released

Revision history for this message

Launchpad Janitor (janitor) wrote on 2018-01-22:

#3

Download full text (10.7 KiB)

This bug was fixed in the package linux - 4.4.0-112.135

---------------
linux (4.4.0-112.135) xenial; urgency=low

* linux: 4.4.0-112.135 -proposed tracker (LP: #1744244)

  * CVE-2017-5715 // CVE-2017-5753
    - x86/cpuid: Provide get_scattered_cpuid_leaf()
    - SAUCE: Fix spec_ctrl support in KVM
    - SAUCE: s390: improve cpu alternative handling for gmb and nobp
    - SAUCE: s390: print messages for gmb and nobp
    - [Config] KERNEL_NOBP=y

linux (4.4.0-111.134) xenial; urgency=low

* linux: 4.4.0-111.134 -proposed tracker (LP: #1743362)

  * Do not duplicate changelog entries assigned to more than one bug or CVE
    (LP: #1743383)
    - [Packaging] git-ubuntu-log -- handle multiple bugs/cves better

  * CVE-2017-5715 // CVE-2017-5753
    - SAUCE: x86/microcode: Extend post microcode reload to support IBPB feature
      -- repair missmerge
    - Revert "x86/svm: Add code to clear registers on VM exit"
    - kvm: vmx: Scrub hardware GPRs at VM-exit

* CVE-2017-5754
- SAUCE: powerpc: use sync instead of hwsync mnemonic

linux (4.4.0-110.133) xenial; urgency=low

* linux: 4.4.0-110.133 -proposed tracker (LP: #1742995)

  * CVE-2017-5753
    - x86/microcode/AMD: Add support for fam17h microcode loading
    - bpf: add bpf_patch_insn_single helper
    - bpf: prepare bpf_int_jit_compile/bpf_prog_select_runtime apis
    - bpf: add generic constant blinding for use in jits
    - locking/barriers: introduce new memory barrier gmb()
    - bpf: prevent speculative execution in eBPF interpreter
    - x86, bpf, jit: prevent speculative execution when JIT is enabled
    - uvcvideo: prevent speculative execution
    - carl9170: prevent speculative execution
    - qla2xxx: prevent speculative execution
    - Thermal/int340x: prevent speculative execution
    - userns: prevent speculative execution
    - ipv6: prevent speculative execution
    - fs: prevent speculative execution
    - net: mpls: prevent speculative execution
    - udf: prevent speculative execution
    - x86/feature: Enable the x86 feature to control Speculation
    - x86/feature: Report presence of IBPB and IBRS control
    - x86/enter: MACROS to set/clear IBRS and set IBPB
    - x86/enter: Use IBRS on syscall and interrupts
    - x86/idle: Disable IBRS entering idle and enable it on wakeup
    - x86/idle: Disable IBRS when offlining cpu and re-enable on wakeup
    - x86/mm: Set IBPB upon context switch
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
    - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
    - x86/kvm: Set IBPB when switching VM
    - x86/kvm: Toggle IBRS on VM entry and exit
    - x86/kvm: Pad RSB on VM transition
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
    - x86/spec_ctrl: Add lock to serialize changes to ibrs and ibpb control
    - x86/syscall: Clear unused extra registers on syscall entrance
    - x86/syscall: Clear unused extra registers on 32-bit compatible syscall
      entrance
    - x86/entry: Use retpoline for syscall's indirect calls
    - x86/cpu/amd, kvm: Satisfy guest kernel reads of IC_CFG MSR
    - x...

This bug was fixed in the package linux - 4.4.0-112.135

---------------
linux (4.4.0-112.135) xenial; urgency=low

* linux: 4.4.0-112.135 -proposed tracker (LP: #1744244)

* CVE-2017-5715 // CVE-2017-5753
    - x86/cpuid: Provide get_scattered_cpuid_leaf()
    - SAUCE: Fix spec_ctrl support in KVM
    - SAUCE: s390: improve cpu alternative handling for gmb and nobp
    - SAUCE: s390: print messages for gmb and nobp
    - [Config] KERNEL_NOBP=y

linux (4.4.0-111.134) xenial; urgency=low

* linux: 4.4.0-111.134 -proposed tracker (LP: #1743362)

* Do not duplicate changelog entries assigned to more than one bug or CVE
    (LP: #1743383)
    - [Packaging] git-ubuntu-log -- handle multiple bugs/cves better

* CVE-2017-5715 // CVE-2017-5753
    - SAUCE: x86/microcode: Extend post microcode reload to support IBPB feature
      -- repair missmerge
    - Revert "x86/svm: Add code to clear registers on VM exit"
    - kvm: vmx: Scrub hardware GPRs at VM-exit

* CVE-2017-5754
    - SAUCE: powerpc: use sync instead of hwsync mnemonic

linux (4.4.0-110.133) xenial; urgency=low

* linux: 4.4.0-110.133 -proposed tracker (LP: #1742995)

* CVE-2017-5753
    - x86/microcode/AMD: Add support for fam17h microcode loading
    - bpf: add bpf_patch_insn_single helper
    - bpf: prepare bpf_int_jit_compile/bpf_prog_select_runtime apis
    - bpf: add generic constant blinding for use in jits
    - locking/barriers: introduce new memory barrier gmb()
    - bpf: prevent speculative execution in eBPF interpreter
    - x86, bpf, jit: prevent speculative execution when JIT is enabled
    - uvcvideo: prevent speculative execution
    - carl9170: prevent speculative execution
    - qla2xxx: prevent speculative execution
    - Thermal/int340x: prevent speculative execution
    - userns: prevent speculative execution
    - ipv6: prevent speculative execution
    - fs: prevent speculative execution
    - net: mpls: prevent speculative execution
    - udf: prevent speculative execution
    - x86/feature: Enable the x86 feature to control Speculation
    - x86/feature: Report presence of IBPB and IBRS control
    - x86/enter: MACROS to set/clear IBRS and set IBPB
    - x86/enter: Use IBRS on syscall and interrupts
    - x86/idle: Disable IBRS entering idle and enable it on wakeup
    - x86/idle: Disable IBRS when offlining cpu and re-enable on wakeup
    - x86/mm: Set IBPB upon context switch
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
    - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
    - x86/kvm: Set IBPB when switching VM
    - x86/kvm: Toggle IBRS on VM entry and exit
    - x86/kvm: Pad RSB on VM transition
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
    - x86/spec_ctrl: Add lock to serialize changes to ibrs and ibpb control
    - x86/syscall: Clear unused extra registers on syscall entrance
    - x86/syscall: Clear unused extra registers on 32-bit compatible syscall
      entrance
    - x86/entry: Use retpoline for syscall's indirect calls
    - x86/cpu/amd, kvm: Satisfy guest kernel reads of IC_CFG MSR
    - x86/cpu/AMD: Add speculative control support for AMD
    - x86/microcode: Extend post microcode reload to support IBPB feature
    - KVM: SVM: Do not intercept new speculative control MSRs
    - x86/svm: Set IBRS value on VM entry and exit
    - x86/svm: Set IBPB when running a different VCPU
    - KVM: x86: Add speculative control CPUID support for guests
    - x86/svm: Add code to clobber the RSB on VM exit
    - x86/svm: Add code to clear registers on VM exit
    - x86/cpu/AMD: Make the LFENCE instruction serialized
    - x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature
    - powerpc: add gmb barrier
    - s390/spinlock: add gmb memory barrier
    - SAUCE: x86/kvm: Fix stuff_RSB() for 32-bit
    - arm64: no gmb() implementation yet
    - arm: no gmb() implementation yet

* CVE-2017-5715
    - x86/microcode/AMD: Add support for fam17h microcode loading
    - bpf: add bpf_patch_insn_single helper
    - bpf: prepare bpf_int_jit_compile/bpf_prog_select_runtime apis
    - bpf: add generic constant blinding for use in jits
    - locking/barriers: introduce new memory barrier gmb()
    - bpf: prevent speculative execution in eBPF interpreter
    - x86, bpf, jit: prevent speculative execution when JIT is enabled
    - uvcvideo: prevent speculative execution
    - carl9170: prevent speculative execution
    - qla2xxx: prevent speculative execution
    - Thermal/int340x: prevent speculative execution
    - userns: prevent speculative execution
    - ipv6: prevent speculative execution
    - fs: prevent speculative execution
    - net: mpls: prevent speculative execution
    - udf: prevent speculative execution
    - x86/feature: Enable the x86 feature to control Speculation
    - x86/feature: Report presence of IBPB and IBRS control
    - x86/enter: MACROS to set/clear IBRS and set IBPB
    - x86/enter: Use IBRS on syscall and interrupts
    - x86/idle: Disable IBRS entering idle and enable it on wakeup
    - x86/idle: Disable IBRS when offlining cpu and re-enable on wakeup
    - x86/mm: Set IBPB upon context switch
    - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
    - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
    - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
    - x86/kvm: Set IBPB when switching VM
    - x86/kvm: Toggle IBRS on VM entry and exit
    - x86/kvm: Pad RSB on VM transition
    - x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
    - x86/spec_ctrl: Add lock to serialize changes to ibrs and ibpb control
    - x86/syscall: Clear unused extra registers on syscall entrance
    - x86/syscall: Clear unused extra registers on 32-bit compatible syscall
      entrance
    - x86/entry: Use retpoline for syscall's indirect calls
    - x86/cpu/amd, kvm: Satisfy guest kernel reads of IC_CFG MSR
    - x86/cpu/AMD: Add speculative control support for AMD
    - x86/microcode: Extend post microcode reload to support IBPB feature
    - KVM: SVM: Do not intercept new speculative control MSRs
    - x86/svm: Set IBRS value on VM entry and exit
    - x86/svm: Set IBPB when running a different VCPU
    - KVM: x86: Add speculative control CPUID support for guests
    - x86/svm: Add code to clobber the RSB on VM exit
    - x86/svm: Add code to clear registers on VM exit
    - x86/cpu/AMD: Make the LFENCE instruction serialized
    - x86/cpu/AMD: Remove now unused definition of MFENCE_RDTSC feature
    - powerpc: add gmb barrier
    - s390/spinlock: add gmb memory barrier
    - SAUCE: x86/kvm: Fix stuff_RSB() for 32-bit
    - arm64: no gmb() implementation yet
    - arm: no gmb() implementation yet

* powerpc: flush L1D on return to use (LP: #1742772)
    - SAUCE: powerpc: Secure memory rfi flush
    - SAUCE: rfi-flush: Make DEBUG_RFI a CONFIG option
    - SAUCE: rfi-flush: Add HRFI_TO_UNKNOWN and use it in denorm
    - SAUCE: Fixup rfid in kvmppc_skip_Hinterrupt should be hrfid
    - SAUCE: rfi-flush: kvmppc_skip_(H)interrupt returns to host
    - SAUCE: KVM: Revert the implementation of H_GET_CPU_CHARACTERISTICS
    - SAUCE: rfi-flush: Implement congruence-first fallback flush
    - SAUCE: rfi-flush: Make l1d_flush_type bit flags
    - SAUCE: rfi-flush: Push the instruction selection down to the patching
      routine
    - SAUCE: rfi-flush: Expand the RFI section to two nop slots
    - SAUCE: rfi-flush: Support more than one flush type at once
    - SAUCE: rfi-flush: Allow HV to advertise multiple flush types
    - SAUCE: rfi-flush: Add speculation barrier before ori 30,30,0 flush
    - SAUCE: powerpc/asm: Allow including ppc_asm.h in asm files
    - SAUCE: Remove setup.h include file otherwise compilation complains about
      missing header file.
    - SAUCE: Fix compilation errors for arch/powerpc/lib/feature-fixups.c
    - SAUCE: rfi-flush: Add barriers to the fallback L1D flushing
    - SAUCE: rfi-flush: Rework powernv logic to be more cautious
    - SAUCE: rfi-flush: Rework pseries logic to be more cautious
    - SAUCE: rfi-flush: Fix the fallback flush to actually activate
    - SAUCE: rfi-flush: Fix HRFI_TO_UNKNOWN
    - SAUCE: rfi-flush: Refactor the macros so the nops are defined once
    - SAUCE: rfi-flush: Add no_rfi_flush and nopti comandline options
    - SAUCE: rfi-flush: Use rfi-flush in printks
    - SAUCE: rfi-flush: Fallback flush add load dependency
    - SAUCE: rfi-flush: Fix the 32-bit KVM build
    - SAUCE: rfi-flush: Fix some RFI conversions in the KVM code
    - SAUCE: UBUNTU: [Config] Disable CONFIG_PPC_DEBUG_RFI

* s390: add ppa to kernel entry/exit (LP: #1742771)
    - s390: introduce CPU alternatives
    - s390: add ppa to kernel entry / exit

* CVE-2017-5754
    - x86/tlb: Drop the _GPL from the cpu_tlbstate export
    - Map the vsyscall page with _PAGE_USER
    - s390: introduce CPU alternatives
    - s390: add ppa to kernel entry / exit
    - SAUCE: powerpc: Secure memory rfi flush
    - SAUCE: rfi-flush: Make DEBUG_RFI a CONFIG option
    - SAUCE: rfi-flush: Add HRFI_TO_UNKNOWN and use it in denorm
    - SAUCE: Fixup rfid in kvmppc_skip_Hinterrupt should be hrfid
    - SAUCE: rfi-flush: kvmppc_skip_(H)interrupt returns to host
    - SAUCE: KVM: Revert the implementation of H_GET_CPU_CHARACTERISTICS
    - SAUCE: rfi-flush: Implement congruence-first fallback flush
    - SAUCE: rfi-flush: Make l1d_flush_type bit flags
    - SAUCE: rfi-flush: Push the instruction selection down to the patching
      routine
    - SAUCE: rfi-flush: Expand the RFI section to two nop slots
    - SAUCE: rfi-flush: Support more than one flush type at once
    - SAUCE: rfi-flush: Allow HV to advertise multiple flush types
    - SAUCE: rfi-flush: Add speculation barrier before ori 30,30,0 flush
    - SAUCE: powerpc/asm: Allow including ppc_asm.h in asm files
    - SAUCE: Remove setup.h include file otherwise compilation complains about
      missing header file.
    - SAUCE: Fix compilation errors for arch/powerpc/lib/feature-fixups.c
    - SAUCE: rfi-flush: Add barriers to the fallback L1D flushing
    - SAUCE: rfi-flush: Rework powernv logic to be more cautious
    - SAUCE: rfi-flush: Rework pseries logic to be more cautious
    - SAUCE: rfi-flush: Fix the fallback flush to actually activate
    - SAUCE: rfi-flush: Fix HRFI_TO_UNKNOWN
    - SAUCE: rfi-flush: Refactor the macros so the nops are defined once
    - SAUCE: rfi-flush: Add no_rfi_flush and nopti comandline options
    - SAUCE: rfi-flush: Use rfi-flush in printks
    - SAUCE: rfi-flush: Fallback flush add load dependency
    - SAUCE: rfi-flush: Fix the 32-bit KVM build
    - SAUCE: rfi-flush: Fix some RFI conversions in the KVM code
    - SAUCE: UBUNTU: [Config] Disable CONFIG_PPC_DEBUG_RFI

-- Stefan Bader <stefan.bader@canonical.com>  Fri, 19 Jan 2018 11:03:51 +0100

Changed in linux (Ubuntu Xenial):
status:	Fix Committed → Fix Released

Frank Heimes (fheimes) on 2018-01-29

Changed in ubuntu-z-systems:
status:	New → In Progress

Marcelo Cerri (mhcerri) on 2018-01-30

Changed in linux (Ubuntu):
status:	In Progress → Fix Released
Changed in ubuntu-z-systems:
status:	In Progress → Fix Committed
status:	Fix Committed → Fix Released

	Status	Importance	Assigned to
Ubuntu on IBM z Systems	Fix Released	Undecided	Unassigned
linux (Ubuntu)	Fix Released	Undecided	Unassigned
Xenial	Fix Released	Undecided	Unassigned
Artful	Fix Released	Undecided	Unassigned

Ubuntu on IBM z Systems

s390: add ppa to kernel entry/exit

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