CVE-2026-80891

CVE-2026-80891 affects the Linux kernel 's KVM s390 PCI subsystem. The vulnerability arises when the AIBV (Adaptive Interrupt Bit Vector) size—derived from the NOI and AIBVO—exceeds a single page boundary, making it impossible to safely pin the guest page. Additionally, the AISB (Adaptive Interru...

EUVD-2026-71641

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a...