APPLIED: [SRU][B][C][D][Patch 0/1] pkey: Indicate old mkvp only if old and current mkvp are different (LP: 1832625)

[Kleber Souza]

On 6/18/19 9:03 AM, frank.heimes at canonical.com wrote:
> Buglink: https://bugs.launchpad.net/bugs/1832625
> 
> SRU Justification:
> 
> [Impact]
> 
> * 'zkey validate' shows wrong information about master key registers
> 
> * this might lead to unsuccessful usage of pkeys, although the master key and the derived keys are correct
> 
> [Fix]
> 
> * ebb7c695d3bc7a4986b92edc8d9ef43491be183e ebb7c69 "pkey: Indicate old mkvp only if old and current mkvp are different"
> 
> [Test Case]
> 
> * set a CCA master key
> 
> * generate a pkey
> 
> * 'change' (or better set) the current CCA master key to the exact same master key again which is currently in use
> 
> * execute a 'zkey validate'
> 
> [Regression Potential] 
> 
> * The regression potential can be considered as very low since this is purely s390x specific
> 
> * changes are limited to a single file (drivers/s390/crypto/pkey_api.c)
> 
> * patch changes only one line (actually expands an if stmt)
> 
> * and all this happens only in a very specific situation (in case a new master key was set, using the same key as before)
> 
> [Other Info]
> 
> * Problem was found during tests at IBM and is a so called 'preventive fix'
> 
> Ingo Franzki (1):
>   From: Ingo Franzki <ifranzki at linux.ibm.com>
> 
>  drivers/s390/crypto/pkey_api.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Applied to {bionic,cosmic,disco}/master-next branch.

Thanks,
Kleber