Bug 2429608 (CVE-2025-71121)

Summary: CVE-2025-71121 kernel: parisc: Do not reprogram affinitiy on ASP chip
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2026-01-14 16:04:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

parisc: Do not reprogram affinitiy on ASP chip

The ASP chip is a very old variant of the GSP chip and is used e.g. in
HP 730 workstations. When trying to reprogram the affinity it will crash
with a HPMC as the relevant registers don't seem to be at the usual
location.  Let's avoid the crash by checking the sversion. Also note,
that reprogramming isn't necessary either, as the HP730 is a just a
single-CPU machine.
Comment 1 Jon Moroney 2026-01-14 19:07:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026011416-CVE-2025-71121-bf23@gregkh/T