RHSA-2021:3812HighCVSS 8.8

Red Hat Security Advisory: kernel security update

Published
October 12, 2021
Last Modified
July 11, 2026

🔗 CVE IDs covered (5)

CVE-2021-3653 →CVE-2021-3656 →CVE-2021-22543 →CVE-2021-22555 →CVE-2021-37576 →

📋 Description

CVE-2021-3653 — kernel: SVM nested virtualization issue in KVM (AVIC support) CVE-2021-3656 — kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) CVE-2021-22543 — kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks CVE-2021-22555 — kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c CVE-2021-37576 — kernel: powerpc: KVM guest OS users can cause host OS memory corruption

🔗 References (8)