CVE-2026-97593

CVE CVE-2026-97593EUVD EUVD-2026-86901Published 2026-09-25T10:22:09.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Fix NULL dereference in iova_to_phys() with ZPCI_TABLE_TYPE_RFX When using a 5-level translation table via ZPCI_TABLE_TYPE_RFX get_rso_from_iova() returns NULL when the region-first entry is invalid. Yet in get_rto_from_iova() the region-second origin rso is not checked to be non-NULL before accessing rso[rsx] leading to a NULL pointer dereference instead of a NULL return when iova_to_phys() is called on a unmapped IOVA. Fix this by adding the missing NULL check.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux patch: 6.18.53; 81244074b518aeb90de5f68e7e825564c29c5c50 <20db6573301e66cd65ebf6c130b6563c69374d9d; patch: 7.2.7; patch: 0; 81244074b518aeb90de5f68e7e825564c29c5c50 <d0502ed0a1aae97e2ab7a21545903ba612d9f02e; 81244074b518aeb90de5f68e7e825564c29c5c50 <41b5e0ce6801bf04d8fd3bca46e8c393349ebd5c; patch: 7.3-rc3; 6.16

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

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