In the Linux kernel, the following vulnerability has been resolved:
KVM: s390: pci: Fix handling of AIF enable without AISB
When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of virttophys(page_address(NULL)).
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68454.json",
"cna_assigner": "Linux"
}