Commit ID got upstream accepted with kernel v5.2-rc3, so will be automatically part of 19.10, when target kernel 5.2 finally lands in eoan. Kernel SRU needed for 19.04 and 18.04.
** Changed in: ubuntu-z-systems Status: New => Triaged -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1832624 Title: [UBUNTU] kernel: Fix wrong dispatching for control domain CPRBs Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Bug description: Description: kernel: Fix wrong dispatching for control domain CPRBs Symptom: Unable to maintain control-only crypto domains Problem: LPARs may have control-only crypto domains assigned. Such a domain can be controlled (for example master keys can be set) but can't be used for regualar crypto load (usage). A crypto domain may be assigned for control-and-usage to only one active LPAR. But the very same domain may be assigned for control-only to one or more other LPARs. However, trying to communicate in any way with a control-only crypto domain did not work. So a simple query for the state of the master keys on a control-only domain failed and the TKE does not even show this domain. Even worse, when the lowest domain (in a numerically sense) is a control-only domain, the TKE does not even see the crypto cards at all. Solution: This fix introduces some code which checks if an CCA CPRB is addressing a control-only domain. If that's the case and there is a default control-and-usage domain available the CPRB is send to this other domain instead. The target domain field within the CPRB is untouched and the crypto card firmware code detects this working-as-designed mismatch and does the right job and addresses the control domain. Reproduction: 1. Add a control-only domain to the crypto configuration of an LPAR and re-activate the LPAR. 2. Connect the TKE the LPAR and try to visit the master key verification patterns of this control-only domain. 3. Will fail without the fix, will succeed with the fix. Component: kernel Upstream-ID: 7379e652797c0b9b5f6caea1576f2dff9ce6a708 This fix is requested for 19.10 but should also be applied to 18.04 and 19.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1832624/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp