CVE-2026-97593: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 81244074b518aeb90de5f68e7e825564c29c5c50 преди d0502ed0a1aae97e2ab7a21545903ba612d9f02e; 81244074b518aeb90de5f68e7e825564c29c5c50 преди 41b5e0ce6801bf04d8fd3bca46e8c393349ebd5c; 81244074b518aeb90de5f68e7e825564c29c5c50 преди 20db6573301e66cd65ebf6c130b6563c69374d9d
• Linux Linux: 6.16; преди 6.16; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-97593
• https://nvd.nist.gov/vuln/detail/CVE-2026-97593
• https://git.kernel.org/stable/c/d0502ed0a1aae97e2ab7a21545903ba612d9f02e
• https://git.kernel.org/stable/c/41b5e0ce6801bf04d8fd3bca46e8c393349ebd5c
• https://git.kernel.org/stable/c/20db6573301e66cd65ebf6c130b6563c69374d9d