CVE-2026-89921

CVE-2026-89921 affects the Linux kernel KVM s390 architecture. The function __kvm_inject_pfault_token() only sets .type and .u.ext.ext_params2 of the on-stack struct kvm_s390_irq, but the full ext substructure is copied into the CPU local variable on injection, leaving ext_params and pad with sta...

EUVD-2026-80521

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Zero initialize data structures for injectpfaulttoken kvminjectpfaulttoken only sets .type and .u.ext.extparams2 of the on-stack struct kvms390irq but the full ext substructure is copied into the cpu local variable on...