This bug was fixed in the package linux-hwe-edge - 4.15.0-22.24~16.04.1
---------------
linux-hwe-edge (4.15.0-22.24~16.04.1) xenial; urgency=medium
* CVE-2018-3639 (powerpc)
- powerpc/64s: Add support for a store forwarding barrier at kernel
entry/exit
- stf-barrier: set eieio instruction bit 6 for future optimisations
* CVE-2018-3639 (x86)
- x86/nospec: Simplify alternative_msr_write()
- x86/bugs: Concentrate bug detection into a separate function
- x86/bugs: Concentrate bug reporting into a separate function
- 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
- 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 code
- x86/speculation: Make "seccomp" the default mode for Speculative Store
Bypass
- x86/bugs: Rename _RDS to _SSBD
- proc: Use underscores for SSBD in 'status'
- Documentation/spec_ctrl: Do some minor cleanups
- x86/bugs: Fix __ssb_select_mitigation() return type
- x86/bugs: Make cpu_show_common() static
* LSM Stacking prctl values should be redefined as to not collide with
upstream prctls (LP: #1769263) // CVE-2018-3639
- SAUCE: LSM stacking: adjust prctl values
linux (4.15.0-21.22) bionic; urgency=medium
* linux: 4.15.0-21.22 -proposed tracker (LP: #1767397)
* initramfs-tools exception during pm.DoInstall with do-release-upgrade from
16.04 to 18.04 (LP: #1766727)
- Add linux-image-* Breaks on s390-tools (<< 2.3.0-0ubuntu3)
* linux-image-4.15.0-20-generic install after upgrade from xenial breaks
(LP: #1767133)
- Packaging: Depends on linux-base that provides the necessary tools
* linux-image packages need to Breaks flash-kernel << 3.90ubuntu2
(LP: #1766629)
- linux-image-* breaks on flash-kernel (<< 3.90ubuntu2)
-- Stefan Bader <stefan.ba...@canonical.com> Tue, 15 May 2018 07:41:28
+0200
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https://bugs.launchpad.net/bugs/1766727
Title:
initramfs-tools exception during pm.DoInstall with do-release-upgrade
from 16.04 to 18.04
Status in Ubuntu on IBM z Systems:
Fix Released
Status in initramfs-tools package in Ubuntu:
Invalid
Status in linux package in Ubuntu:
Fix Committed
Status in linux-hwe-edge package in Ubuntu:
Fix Committed
Status in s390-tools package in Ubuntu:
Fix Released
Status in ubuntu-release-upgrader package in Ubuntu:
Invalid
Status in initramfs-tools source package in Xenial:
Invalid
Status in linux source package in Xenial:
New
Status in linux-hwe-edge source package in Xenial:
Fix Released
Status in s390-tools source package in Xenial:
Fix Released
Status in ubuntu-release-upgrader source package in Xenial:
Invalid
Status in initramfs-tools source package in Bionic:
Invalid
Status in linux source package in Bionic:
Fix Released
Status in linux-hwe-edge source package in Bionic:
Invalid
Status in s390-tools source package in Bionic:
Fix Released
Status in ubuntu-release-upgrader source package in Bionic:
Invalid
Bug description:
[Impact]
Upgrades of linux-image-generic-hwe-16.04-edge will fail to configure because
the post-update script for zipl will fail.
[Test Case]
Upgrade linux-image-generic-hwe-16.04-edge from xenial to xenial-proposed on
s390x.
[Regression]
zipl update on s390x might fail, causing the system to be unbootable.
----------------------------
Upgrading from 16.04 to 18.04 using 'do-release-upgrade -d' results
in:
Errors were encountered while processing:
initramfs-tools
Exception during pm.DoInstall(): E:Sub-process /usr/bin/dpkg returned an
error code (1)
Could not install the upgrades
The upgrade has aborted. Your system could be in an unusable state. A
recovery will run now (dpkg --configure -a).
---
Processing triggers for systemd (237-3ubuntu10) ...
Processing triggers for initramfs-tools (0.130ubuntu3) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-121-generic
Using config file '/etc/zipl.conf'
Error: Ramdisk file '/boot/initrd.img' in section 'ubuntu': No such file or
directory
run-parts: /etc/initramfs/post-update.d//zz-zipl exited with return code 1
[1mdpkg:[0m error processing package initramfs-tools (--configure):
installed initramfs-tools package post-installation script subprocess
returned error exit status 1
Processing triggers for ca-certificates (20180409) ...
Updating certificates in /etc/ssl/certs...
0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
done.
Processing triggers for dictionaries-common (1.27.2) ...
Processing triggers for linux-image-4.15.0-19-generic (4.15.0-19.20) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.15.0-19-generic
Using config file '/etc/zipl.conf'
Building bootmap in '/boot'
Building menu 'menu'
Adding #1: IPL section 'ubuntu' (default)
Adding #2: IPL section 'old'
Preparing boot device: dasdb (0104).
Done.
/etc/kernel/postinst.d/zz-zipl:
Using config file '/etc/zipl.conf'
Building bootmap in '/boot'
Building menu 'menu'
Adding #1: IPL section 'ubuntu' (default)
Adding #2: IPL section 'old'
Preparing boot device: dasdb (0104).
Done.
Processing triggers for sgml-base (1.29) ...
Processing triggers for resolvconf (1.79ubuntu10) ...
Processing triggers for ureadahead (0.100.0-20) ...
Errors were encountered while processing:
initramfs-tools
Log ended: 2018-04-24 13:12:40
---
ApportVersion: 2.20.9-0ubuntu6
Architecture: s390x
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 4.15.0-19.20-generic 4.15.17
Tags: bionic
Uname: Linux 4.15.0-19-generic s390x
UpgradeStatus: Upgraded to bionic on 2018-04-24 (0 days ago)
UserGroups: adm cdrom cpacfstats dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
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