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** Attachment added: "Backport of "crypto: vmx - ghash: do nosimd fallback 
manually""
   
https://bugs.launchpad.net/bugs/1841984/+attachment/5285696/+files/BACKPORTv2-4.19-5.0-5.1-crypto-vmx---ghash-do-nosimd-fallback-manually.patch

** Changed in: ubuntu
     Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1841984

Title:
  [Backport] Crypto VMX Fixes

Status in The Ubuntu-power-systems project:
  New
Status in linux package in Ubuntu:
  New

Bug description:
  Ubuntu Disco is missing the fix for "5c380d623ed3 - crypto: vmx - Add
  support for VMS instructions by ASM (4 years, 5 months ago) <Leonidas
  S. Barbosa>" ... which is fixed by 'crypto: vmx - fix copy-paste error
  in CTR mode', it fixes a couple of incorrect branch targets, and usage
  of an incorrect vector assembly instruction.

  The others two patches ("crypto: vmx - CTR: always increment IV as
  quadword ", "crypto: vmx - ghash: do nosimd fallback manually ") fixes
  for ghash replaces the fallback mechanism that is used on powerpc an
  operation is required to operate in interrupt context.

  Not having these patches might lead to data integrity issues.

  patches
  crypto: vmx - fix copy-paste error in CTR mode
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dcf7b48212c0fab7df69e84fab22d6cb7c8c0fb9

  crypto: vmx - CTR: always increment IV as quadword
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=009b30ac7444c17fae34c4f435ebce8e8e2b3250

  crypto: vmx - ghash: do nosimd fallback manually
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=357d065a44cdd77ed5ff35155a989f2a763e96ef

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