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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu)
       Status: Confirmed => In Progress

** Also affects: linux (Ubuntu Xenial)
   Importance: Medium
     Assignee: Joseph Salisbury (jsalisbury)
       Status: In Progress

** Also affects: linux (Ubuntu Vivid)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Wily)
   Importance: Undecided
       Status: New

** 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: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Vivid)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Trusty)
     Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Tags added: trusty vivid wily xenial

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https://bugs.launchpad.net/bugs/1520411

Title:
  powerpc/tm: Fix local DoS

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  In Progress
Status in linux source package in Vivid:
  In Progress
Status in linux source package in Wily:
  In Progress
Status in linux source package in Xenial:
  In Progress

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+

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