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[Michael Neuling <1520411@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

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+

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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

Title:
  powerpc/tm: Fix local DoS

Status in linux package in Ubuntu:
  New

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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