tree f9b2a4437d00ae1ee49fc92772052b23e2b41454
parent 9216514602ac436c116664ac9eaf18127ccf34df
parent 65565a68c582fec2f2a8f5aaa399118ab1209103
author Linus Torvalds <torvalds@linux-foundation.org> 1561382439 +0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1561382439 +0800
mergetag object 65565a68c582fec2f2a8f5aaa399118ab1209103
 type commit
 tag powerpc-5.2-6
 tagger Michael Ellerman <mpe@ellerman.id.au> 1560942498 +1000
 
 powerpc fixes for 5.2 #6
 
 One fix for a bug in our context id handling on 64-bit hash CPUs, which can lead
 to unrelated processes being able to read/write to each other's virtual memory.
 See the commit for full details.
 
 That is the fix for CVE-2019-12817.
 
 This also adds a kernel selftest for the bug.
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Merge tag 'powerpc-5.2-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "One fix for a bug in our context id handling on 64-bit hash CPUs,
  which can lead to unrelated processes being able to read/write to each
  other's virtual memory. See the commit for full details.

  That is the fix for CVE-2019-12817.

  This also adds a kernel selftest for the bug"

* tag 'powerpc-5.2-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Add test of fork with mapping above 512TB
  powerpc/mm/64s/hash: Reallocate context ids on fork