Activity log for bug #1792957

Date Who What changed Old value New value Message
2018-09-17 14:40:02 bugproxy bug added bug
2018-09-17 14:40:04 bugproxy tags architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804
2018-09-17 14:40:05 bugproxy ubuntu: assignee Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
2018-09-17 14:40:09 bugproxy affects ubuntu kernel-package (Ubuntu)
2018-09-17 14:51:56 Frank Heimes affects kernel-package (Ubuntu) linux (Ubuntu)
2018-09-17 14:52:15 Frank Heimes bug task added ubuntu-power-systems
2018-09-17 14:52:26 Frank Heimes ubuntu-power-systems: importance Undecided Medium
2018-09-17 14:52:42 Frank Heimes ubuntu-power-systems: assignee Canonical Kernel Team (canonical-kernel-team)
2018-09-17 15:25:34 Joseph Salisbury linux (Ubuntu): importance Undecided Medium
2018-09-17 15:25:41 Joseph Salisbury linux (Ubuntu): status New In Progress
2018-09-17 15:25:45 Joseph Salisbury linux (Ubuntu): assignee Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Joseph Salisbury (jsalisbury)
2018-09-17 15:25:58 Joseph Salisbury nominated for series Ubuntu Bionic
2018-09-17 15:25:58 Joseph Salisbury bug task added linux (Ubuntu Bionic)
2018-09-17 15:26:08 Joseph Salisbury linux (Ubuntu Bionic): status New In Progress
2018-09-17 15:26:11 Joseph Salisbury linux (Ubuntu Bionic): importance Undecided Medium
2018-09-17 15:26:15 Joseph Salisbury linux (Ubuntu Bionic): assignee Joseph Salisbury (jsalisbury)
2018-09-18 07:37:00 Frank Heimes ubuntu-power-systems: status New In Progress
2018-10-11 20:18:15 Joseph Salisbury description == Comment: #0 - Leonardo Augusto Guimaraes Garcia <lagarcia@br.ibm.com> - 2018-09-13 07:12:48 == +++ This bug was initially created as a clone of Bug #171443 +++ Please, add the following patch: http://patchwork.ozlabs.org/patch/968786/ which adds a mode where all vCPUs on a core must be the same VM on POWER8 and POWER9. This is intended for use in security-conscious settings where users are concerned about possible side-channel attacks between threads which could perhaps enable one VM to attack another VM on the same core, or the host. == SRU Justification == This patch has been requested by IBM. It provides a mode where all vCPUs on a core must be the same VM. This is intended for use in security-conscious settings where users are concerned about possible side-channel attacks between threads which could perhaps enable one VM to attack another VM on the same core, or the host. == Fix == linux-next commit: aa2278644ae5 ("KVM: PPC: Book3S HV: Provide mode where all vCPUs on a core must be the same VM") == Regression Potential == Low. Changes limited to powerpc. == Test Case == A test kernel was built with this patch and tested by the original bug reporter. The bug reporter states the test kernel resolved the bug. == Comment: #0 - Leonardo Augusto Guimaraes Garcia <lagarcia@br.ibm.com> - 2018-09-13 07:12:48 == +++ This bug was initially created as a clone of Bug #171443 +++ Please, add the following patch: http://patchwork.ozlabs.org/patch/968786/ which adds a mode where all vCPUs on a core must be the same VM on POWER8 and POWER9. This is intended for use in security-conscious settings where users are concerned about possible side-channel attacks between threads which could perhaps enable one VM to attack another VM on the same core, or the host.
2018-10-11 20:18:23 Joseph Salisbury nominated for series Ubuntu Cosmic
2018-10-11 20:18:23 Joseph Salisbury bug task added linux (Ubuntu Cosmic)
2018-10-23 14:48:05 Kleber Sacilotto de Souza linux (Ubuntu Bionic): status In Progress Fix Committed
2018-10-24 13:35:03 Brad Figg tags architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-needed-bionic
2018-10-24 14:50:11 Brad Figg tags architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-needed-bionic architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-needed-bionic verification-needed-cosmic
2018-11-07 16:22:39 Kleber Sacilotto de Souza linux (Ubuntu Cosmic): status In Progress Fix Committed
2018-11-13 07:47:18 Andrew Cloke tags architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-needed-bionic verification-needed-cosmic architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-done-bionic verification-needed-cosmic
2018-11-13 18:51:26 Launchpad Janitor linux (Ubuntu Bionic): status Fix Committed Fix Released
2018-11-13 18:51:26 Launchpad Janitor cve linked 2017-13168
2018-11-13 18:51:26 Launchpad Janitor cve linked 2018-15471
2018-11-13 18:51:26 Launchpad Janitor cve linked 2018-16658
2018-11-13 18:51:26 Launchpad Janitor cve linked 2018-9363
2018-11-13 19:09:36 Launchpad Janitor linux (Ubuntu Cosmic): status Fix Committed Fix Released
2018-11-14 16:06:55 Joseph Salisbury linux (Ubuntu): status In Progress Fix Released
2018-11-14 16:33:07 Andrew Cloke ubuntu-power-systems: status In Progress Fix Released
2018-11-21 16:26:02 Dimitri John Ledkov tags architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-done-bionic verification-needed-cosmic architecture-ppc64le bugnameltc-171449 severity-medium targetmilestone-inin1804 verification-done-bionic verification-done-cosmic