Meltdown vulnerability

Document ID : KB000110276
Last Modified Date : 15/08/2018
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Introduction:
Require details of Product Meltdown vulnerability
Question:
Is there any Meltdown vulnerability for the products?
Environment:
z/os DB2
Answer:
1) We have tested all Detector functionality with the Meltdown patch on and encountered no problems.
) In reference to the PSASTAK field, which holds recovery information, neither Detector no Subsystem Analyzer reference that field
directly nor do they manipulate the recovery stack in any way. All references/uses of the recovery stack are through the use of documented interfaces.
3) Though not specifically related to the Meltdown patch, a related notification from IBM referred to the use of the LMG instruction in relation to management of linked-lists.
We have reviewed our use of the LMG instruction and found no anomalies.