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VULNERABILITIES

CVE-2026-74515 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/591952b63a9f976da7d49f719f36ec826ee2a575 kernel.org
https://git.kernel.org/stable/c/642d2d1067f7c4d753ae0e3ba5bc98b43cfe3c70 kernel.org
https://git.kernel.org/stable/c/6837f0ae85fd54cf64c8a0c7c530bba2fae0a207 kernel.org
https://git.kernel.org/stable/c/6be1ff49ba81f96a6fa55915e6d920be43ac57cc kernel.org
https://git.kernel.org/stable/c/78d9648e7e960546d5b72504a0b0358cd8bb1e9d kernel.org

see all 6 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-74515
NVD Published Date:
Aug 15, 2026
NVD Last Modified:
Aug 19, 2026
Source:
kernel.org
CVE-2026-74515 Details - Not Deferred