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
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