powerpc/tm: Fix local DoS
Bug #1520411 reported by
Michael Neuling
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Trusty |
Fix Released
|
Medium
|
Unassigned | ||
Vivid |
Fix Released
|
Medium
|
Unassigned | ||
Wily |
Fix Released
|
Medium
|
Unassigned | ||
Xenial |
Fix Released
|
Medium
|
Unassigned |
Bug Description
The following two fixes have just made it into mpes powerpc fixes tree:
7f821fc powerpc/tm: Check for already reclaimed tasks
d2b9d2a powerpc/tm: Block signal return setting invalid MSR state
They fix local DoS (userspace can crash the OS) on powerpc POWER8 cpus for any kernel v3.9+
Related branches
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
status: | Confirmed → In Progress |
Changed in linux (Ubuntu Wily): | |
status: | New → In Progress |
Changed in linux (Ubuntu Vivid): | |
status: | New → In Progress |
Changed in linux (Ubuntu Trusty): | |
status: | New → In Progress |
Changed in linux (Ubuntu Wily): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Vivid): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Trusty): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Wily): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
Changed in linux (Ubuntu Vivid): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
Changed in linux (Ubuntu Trusty): | |
assignee: | nobody → Joseph Salisbury (jsalisbury) |
tags: | added: trusty vivid wily xenial |
Changed in linux (Ubuntu Xenial): | |
status: | In Progress → Confirmed |
Changed in linux (Ubuntu Wily): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Vivid): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Trusty): | |
status: | In Progress → Fix Committed |
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This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1520411
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.