CVE-2026-89922

CVE-2026-89922 is a race condition in the Linux kernel's KVM s390 subsystem. The function __import_wp_info() uses kvm_read_guest() to back up guest memory contents of a watchpoint, which resolves memslots via __kvm_memslots(). This call requires holding kvm->srcu (or kvm->slots_lock), but t...