| 2018-09-03 08:29:11 |
bugproxy |
bug |
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added bug |
| 2018-09-03 08:29:13 |
bugproxy |
tags |
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architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin--- |
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| 2018-09-03 08:29:15 |
bugproxy |
ubuntu: assignee |
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Skipper Bug Screeners (skipper-screen-team) |
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| 2018-09-03 08:29:19 |
bugproxy |
affects |
ubuntu |
linux (Ubuntu) |
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| 2018-09-03 09:05:42 |
Heinz-Werner Seeck |
information type |
Public |
Private Security |
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| 2018-09-03 09:38:04 |
Heinz-Werner Seeck |
bug |
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added subscriber Frank Heimes |
| 2018-09-03 10:01:33 |
Frank Heimes |
bug |
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added subscriber Andrew Cloke |
| 2018-09-03 10:04:55 |
Frank Heimes |
bug |
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added subscriber Stefan Bader |
| 2018-09-03 11:09:23 |
bugproxy |
tags |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin--- |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin1810 |
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| 2018-09-03 11:39:35 |
bugproxy |
attachment added |
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Extra spectre patch for Ubuntu 16.04 https://bugs.launchpad.net/bugs/1790457/+attachment/5183988/+files/ubuntu-16.04-bpf-indirect-call.patch |
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| 2018-09-03 11:39:37 |
bugproxy |
attachment added |
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Extra spectre patch for Ubuntu 18.04 https://bugs.launchpad.net/bugs/1790457/+attachment/5183989/+files/ubuntu-18.04-bpf-indirect-call.patch |
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| 2018-09-03 12:17:02 |
Frank Heimes |
bug |
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added subscriber Emily Ratliff |
| 2018-09-03 13:40:24 |
Frank Heimes |
removed subscriber Emily Ratliff |
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| 2018-09-03 13:40:45 |
Frank Heimes |
bug |
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added subscriber Jamie Strandboge |
| 2018-09-03 13:40:58 |
Frank Heimes |
bug |
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added subscriber Jamie Bennett |
| 2018-09-03 13:43:51 |
Frank Heimes |
bug task added |
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ubuntu-z-systems |
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| 2018-09-03 13:44:03 |
Frank Heimes |
ubuntu-z-systems: importance |
Undecided |
High |
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| 2018-09-03 18:54:19 |
Steve Beattie |
bug |
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added subscriber Tyler Hicks |
| 2018-09-03 18:54:38 |
Steve Beattie |
bug |
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added subscriber Kleber Sacilotto de Souza |
| 2018-09-03 18:54:55 |
Steve Beattie |
bug |
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added subscriber Brad Figg |
| 2018-09-04 09:32:27 |
Frank Heimes |
bug |
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added subscriber Alex Murray |
| 2018-09-04 09:42:33 |
Stefan Bader |
cve linked |
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2018-3639 |
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| 2018-09-04 09:45:37 |
Stefan Bader |
bug |
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added subscriber Andy Whitcroft |
| 2018-09-04 10:29:25 |
bugproxy |
cve linked |
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2017-5715 |
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| 2018-09-04 13:18:08 |
Stefan Bader |
cve unlinked |
2018-3639 |
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| 2018-09-04 13:18:33 |
Stefan Bader |
bug |
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added subscriber Khaled El Mously |
| 2018-09-07 08:31:29 |
Frank Heimes |
linux (Ubuntu): status |
New |
In Progress |
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| 2018-09-07 08:31:35 |
Frank Heimes |
ubuntu-z-systems: status |
New |
In Progress |
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| 2018-09-10 11:20:03 |
bugproxy |
attachment added |
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Backport of "s390: detect etoken facility" https://bugs.launchpad.net/bugs/1790457/+attachment/5187067/+files/0001-s390-detect-etoken-facility.patch |
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| 2018-09-10 11:20:04 |
bugproxy |
attachment added |
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Backport of "s390/lib: use expoline for all bcr instructions" https://bugs.launchpad.net/bugs/1790457/+attachment/5187068/+files/0002-s390-lib-use-expoline-for-all-bcr-instructions.patch |
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| 2018-09-10 16:02:11 |
Frank Heimes |
linux (Ubuntu): status |
In Progress |
Fix Committed |
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| 2018-09-10 16:02:14 |
Frank Heimes |
ubuntu-z-systems: status |
In Progress |
Fix Committed |
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| 2018-09-12 05:42:35 |
Christian Ehrhardt |
bug task added |
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qemu (Ubuntu) |
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| 2018-09-13 09:20:06 |
Christian Ehrhardt |
nominated for series |
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Ubuntu Bionic |
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| 2018-09-13 09:20:06 |
Christian Ehrhardt |
bug task added |
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qemu (Ubuntu Bionic) |
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| 2018-09-13 09:20:06 |
Christian Ehrhardt |
bug task added |
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linux (Ubuntu Bionic) |
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| 2018-09-13 09:20:23 |
Christian Ehrhardt |
qemu (Ubuntu): status |
New |
Triaged |
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| 2018-09-13 09:20:25 |
Christian Ehrhardt |
qemu (Ubuntu Bionic): status |
New |
Confirmed |
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| 2018-09-13 11:06:53 |
Christian Ehrhardt |
description |
Description will follow |
[Impact]
* eToken Facility will help to mitigate spectre.
With it in place use of expolines can be ommitted.
Kernel https://github.com/torvalds/linux/commit/aeaf7002a76c8da60c0f503badcbddc07650678c
KVM to pass it to guests:
https://patchwork.kernel.org/patch/10532197/
* Backport the changes to Qemu/Kernel so that the impact of the spectre
fixes can be minimized.
[Test Case]
* First of all you need HW with the facility available.
For HW without nothing should change at all, well maybe a message that
it wasn't detected when the new kernel boots.
* When running on HW with the Facility and a fixed kernel then the
facility should be reported as being available.
* With a fixed Kernel AND Qemu this facility should be passed to the
guest so that it can benefit from the improvements as well.
* Due to a lack of such HW IBM volunteered to do the verification on
this bug.
[Regression Potential]
* Detection and passing of a Facility is nothing new, s390x has plenty of
them and this is in some sense "just one more" so regressions should be
minimal. The one thing we thought about was how an enabled Kernel/qemu
would behave on systems that do not have the facility, but in all tests
that was correctly detected and continues to use expoline.
[Other Info]
* n/a
---
Description will follow |
|
| 2018-09-13 14:03:04 |
Launchpad Janitor |
qemu (Ubuntu): status |
Triaged |
Fix Released |
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| 2018-09-17 11:07:30 |
Frank Heimes |
linux (Ubuntu Bionic): status |
New |
Fix Committed |
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| 2018-09-20 12:58:38 |
Frank Heimes |
bug |
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added subscriber Eberhard Pasch |
| 2018-09-27 12:14:39 |
Christian Ehrhardt |
information type |
Private Security |
Public Security |
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| 2018-09-27 12:35:53 |
Łukasz Zemczak |
qemu (Ubuntu Bionic): status |
Confirmed |
Fix Committed |
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| 2018-09-27 12:35:54 |
Łukasz Zemczak |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2018-09-27 12:35:55 |
Łukasz Zemczak |
bug |
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added subscriber SRU Verification |
| 2018-09-27 12:36:02 |
Łukasz Zemczak |
tags |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin1810 |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin1810 verification-needed verification-needed-bionic |
|
| 2018-09-27 15:06:31 |
Christian Ehrhardt |
tags |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin1810 verification-needed verification-needed-bionic |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin1810 verification-done verification-done-bionic |
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| 2018-09-28 08:05:05 |
Robert Kieninger |
bug |
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added subscriber Robert Kieninger |
| 2018-10-08 10:00:02 |
Frank Heimes |
linux (Ubuntu Bionic): status |
Fix Committed |
Fix Released |
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| 2018-10-08 10:16:22 |
Frank Heimes |
linux (Ubuntu): status |
Fix Committed |
Fix Released |
|
| 2018-10-08 13:17:50 |
Launchpad Janitor |
qemu (Ubuntu Bionic): status |
Fix Committed |
Fix Released |
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| 2018-10-08 13:17:50 |
Launchpad Janitor |
cve linked |
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2018-15746 |
|
| 2018-10-08 13:18:08 |
Łukasz Zemczak |
removed subscriber Ubuntu Stable Release Updates Team |
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| 2018-10-08 13:30:05 |
Frank Heimes |
ubuntu-z-systems: status |
Fix Committed |
Fix Released |
|
| 2018-10-10 12:49:59 |
Launchpad Janitor |
merge proposal linked |
|
https://code.launchpad.net/~paelzer/ubuntu/+source/qemu/+git/qemu/+merge/356406 |
|
| 2019-07-24 21:26:54 |
Brad Figg |
tags |
architecture-s39064 bugnameltc-171040 severity-high targetmilestone-inin1810 verification-done verification-done-bionic |
architecture-s39064 bugnameltc-171040 cscc severity-high targetmilestone-inin1810 verification-done verification-done-bionic |
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