Ubuntu
gcc-5 package

Spectre related Compiler updates

Bug #1759152 reported by bugproxy
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ubuntu on IBM z Systems
Fix Released
High
Unassigned
gcc-5 (Ubuntu)
Fix Released
Undecided
Skipper Bug Screeners
Xenial
Fix Released
Undecided
Unassigned
Bionic
Fix Released
Undecided
Skipper Bug Screeners

Bug Description

This is a backport of the parts relevant for the Linux kernel build. It does not include inline thunks and function attributes.

The patch has been tested with the 5.4.0-6ubuntu1~16.04.9 GCC package from Ubuntu 16.04.04. There are no testsuite regressions.

The related upstream revision is: r257489 (Spectre #2 mitigation)

The bugfix r257522 is NOT relevant for the GCC 5 backport since it was a problem related to the function attributes.

Revision history for this message
bugproxy (bugproxy) wrote : Partial backport of upstream Spectre #2 mitigation patches

Default Comment by Bridge

tags: added: architecture-s39064 bugnameltc-165142 severity-high targetmilestone-inin16045
Changed in ubuntu:
assignee: nobody → Skipper Bug Screeners (skipper-screen-team)
affects: ubuntu → linux (Ubuntu)
Frank Heimes (fheimes)
affects: linux (Ubuntu) → gcc-defaults (Ubuntu)
Changed in ubuntu-z-systems:
status: New → Triaged
importance: Undecided → High
Matthias Klose (doko)
affects: gcc-defaults (Ubuntu) → gcc-5 (Ubuntu)
Matthias Klose (doko)
Changed in gcc-5 (Ubuntu Bionic):
status: New → Fix Committed
Frank Heimes (fheimes)
Changed in ubuntu-z-systems:
status: Triaged → In Progress
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gcc-5 - 5.5.0-11ubuntu1

---------------
gcc-5 (5.5.0-11ubuntu1) bionic; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-5 (5.5.0-11) unstable; urgency=medium

  * S/390: Disable branch prediction, backported from the trunk (Andreas
    Krebbel). LP: #1759152.

 -- Matthias Klose <email address hidden> Tue, 27 Mar 2018 23:43:45 +0800

Changed in gcc-5 (Ubuntu Bionic):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gcc-5 - 5.4.0-6ubuntu1~16.04.10

---------------
gcc-5 (5.4.0-6ubuntu1~16.04.10) xenial-security; urgency=medium

  * Backport upstream revision r257489 (Spectre #2 mitigation for s390x).
    LP: #1759152.

 -- Matthias Klose <email address hidden> Mon, 18 Jun 2018 15:31:24 +0200

Changed in gcc-5 (Ubuntu Xenial):
status: New → Fix Released
Frank Heimes (fheimes)
Changed in ubuntu-z-systems:
status: In Progress → Fix Released
Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2018-06-29 07:05 EDT-------
IBM bugzilla status -> closed, Fix Released by Canonical

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