Oracle Errata System Oracle Linux 5.11 2026-07-31T08:02:53 Oracle Linux 8 [4.18.0-553.147.1] - Update Oracle Linux certificates (Kevin Lyons) - Disable signing for aarch64 (Ilya Okomin) - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237] - Update x509.genkey [Orabug: 24817676] - Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.3 - Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652] - Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772] [4.18.0-553.147.1] - KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level (Aidan Wallace) [RHEL-213341] {CVE-2026-63807} - KVM: nVMX: Hide shadow VMCS right after VMCLEAR (Aidan Wallace) [RHEL-213341] - KVM: x86: Check for invalid/obsolete root *after* making MMU pages available (Aidan Wallace) [RHEL-213341] - KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state (Aidan Wallace) [RHEL-213341] - KVM: nVMX: Add helper to put (unmap) vmcs12 pages (Aidan Wallace) [RHEL-213341] - KVM: nVMX: Use kvm_vcpu_map() to get/pin vmcs12's APIC-access page (Aidan Wallace) [RHEL-213341] - KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (Aidan Wallace) [RHEL-211228] {CVE-2025-40026} - KVM: x86: wean in-kernel PIO from vcpu->arch.pio* (Aidan Wallace) [RHEL-211228] - KVM: x86: move all vcpu->arch.pio* setup in emulator_pio_in_out() (Aidan Wallace) [RHEL-211228] - KVM: x86: drop PIO from unregistered devices (Aidan Wallace) [RHEL-211228] - KVM: x86: inline kernel_pio into its sole caller (Aidan Wallace) [RHEL-211228] - serial: 8250_mid: Disable DMA for selected platforms (Mark Salter) [RHEL-190191] - tipc: fix double-free in tipc_buf_append() (CKI Backport Bot) [RHEL-192178] {CVE-2026-52993} - xfrm: esp: restore combined single-frag length gate (CKI Backport Bot) [RHEL-178324] - dm log: fix out-of-bounds write due to region_count overflow (CKI Backport Bot) [RHEL-188543] {CVE-2026-53059} - xfs: Use xarray to track SB UUIDs instead of plain array. (Lukas Herbolt) [RHEL-127174] - selftests: kvm: try getting XFD and XSAVE state out of sync (Paolo Bonzini) [RHEL-166738] - selftests: kvm: replace numbering of sync points with actions (Paolo Bonzini) [RHEL-166738] - x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1 (Paolo Bonzini) [RHEL-166738] - mount: Retest MNT_LOCKED in do_umount (Ian Kent) [RHEL-152655] - mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts (Ian Kent) [RHEL-152655] - mount: Prevent MNT_DETACH from disconnecting locked mounts (Ian Kent) [RHEL-152655] IMPORTANT Copyright 2026 Oracle, Inc. CVE-2025-40026 CVE-2026-52993 CVE-2026-53059 cpe:/o:oracle:linux:8::baseos_latest cpe:/o:oracle:linux:8:10:baseos_patch cpe:/a:oracle:linux:8::codeready_builder