CVE-2026-74515

CVE CVE-2026-74515EUVD EUVD-2026-59708Published 2026-08-15T12:27:35.000ZLast changed 2026-08-19T16:38:14.000ZCVSS 8.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled The MPCIFC instruction doesn't allow registering adapter interrupts without first unregistering. So reject any request to enable interrupt forwarding if its already enabled for the zPCI device. This also fixes overwriting and thus leaking resources when the ioctl is called multiple times for the same device.

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: 0; 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <591952b63a9f976da7d49f719f36ec826ee2a575; patch: 7.1.8; patch: 6.1.183; 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <6837f0ae85fd54cf64c8a0c7c530bba2fae0a207; 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <8fa01be5a6149404adb82c0979a78f6347edd3ef; 6.0; patch: 6.18.44; 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <642d2d1067f7c4d753ae0e3ba5bc98b43cfe3c70; 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <78d9648e7e960546d5b72504a0b0358cd8bb1e9d; 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <6be1ff49ba81f96a6fa55915e6d920be43ac57cc; patch: 6.6.151; patch: 6.12.103; patch: 7.2

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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