CVE-2026-74515 | BDVDB-2026-360232 Detail
LinuxLinux
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/642d2d1067f7c4d753ae0e3ba5bc98b43cfe3c70
- https://git.kernel.org/stable/c/78d9648e7e960546d5b72504a0b0358cd8bb1e9d
- https://git.kernel.org/stable/c/6be1ff49ba81f96a6fa55915e6d920be43ac57cc
- https://git.kernel.org/stable/c/6837f0ae85fd54cf64c8a0c7c530bba2fae0a207
- https://git.kernel.org/stable/c/591952b63a9f976da7d49f719f36ec826ee2a575
- https://git.kernel.org/stable/c/8fa01be5a6149404adb82c0979a78f6347edd3ef
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.