CVE-2026-89919

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: keyop: use mmulock to read gmap-asce Every other dat consumer in this file kvms390getskeys, setskeys, getcmmabits, setcmmabits, MEMCLRCMMA, kvms390fixupprefix, kvmtestagegfn, kvmagegfn reads kvm-arch.gmap-asce inside t...

CVE-2026-89919 KVM: s390: keyop: use mmu_lock to read gmap->asce

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: keyop: use mmulock to read gmap-asce Every other dat consumer in this file kvms390getskeys, setskeys, getcmmabits, setcmmabits, MEMCLRCMMA, kvms390fixupprefix, kvmtestagegfn, kvmagegfn reads kvm-arch.gmap-asce inside t...

EUVD-2026-80519

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: keyop: use mmulock to read gmap-asce Every other dat consumer in this file kvms390getskeys, setskeys, getcmmabits, setcmmabits, MEMCLRCMMA, kvms390fixupprefix, kvmtestagegfn, kvmagegfn reads kvm-arch.gmap-asce inside t...

CVE-2026-89919

CVE-2026-89919 affects the Linux kernel's KVM s390 subsystem. The keyop function reads kvm->arch.gmap->asce without holding the mmu_lock read-side, unlike every other dat_* consumer in the same file. Because gmap->asce is mutated under write_lock(mmu_lock) by gmap_set_limit(), a concurre...