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Uncaught Exception The advisory has been revoked - it doesn't affect any version of package kernel-modules-internal  (opens in a new tab)

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EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELMODULESINTERNAL-21864865
  • published30 Oct 2026
  • disclosed24 Apr 2026
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Introduced: 24 Apr 2026

CVE-2026-31568  (opens in a new tab)
CWE-248  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules-internal package and not the kernel-modules-internal package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

s390/mm: Add missing secure storage access fixups for donated memory

There are special cases where secure storage access exceptions happen in a kernel context for pages that don't have the PG_arch_1 bit set. That bit is set for non-exported guest secure storage (memory) but is absent on storage donated to the Ultravisor since the kernel isn't allowed to export donated pages.

Prior to this patch we would try to export the page by calling arch_make_folio_accessible() which would instantly return since the arch bit is absent signifying that the page was already exported and no further action is necessary. This leads to secure storage access exception loops which can never be resolved.

With this patch we unconditionally try to export and if that fails we fixup.