kernel security update

4.18.0-553.123.1 - 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 olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

ALSA-2026:13578 Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont a...

Linux Distros Unpatched Vulnerability : CVE-2026-31553

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix the descriptor address in kvmatswapdesc Using u64 user hva + offset to get t...

Linux Distros Unpatched Vulnerability : CVE-2026-31564

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix base address calculation in kvmeiointcregsaccess In function...

Linux Distros Unpatched Vulnerability : CVE-2026-31569

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - LoongArch: KVM: Handle the case that EIOINTC's coremap is empty EIOINTC's coremap in eiointcupdateswcoremap can be empty, currently we get a cpuid with -1 in th...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: CVE-2025-39998: scsi: target: targetcoreconfigfs: Add length check to avoid buffer overflow bsc1252073. CVE-2026-23103: ipvlan: Make the addrslock be per port bsc1257773...

Oracle Linux 9 : qemu-kvm (ELSA-2026-50241)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50241 advisory. - Document CVEs Mark Kanda CVE-2025-54566 CVE-2025-54567 CVE-2025-8860 CVE-2026-0665 CVE-2026-3886 - hw/usb/hcd-ohci: check for MPS=0 to avoid infinit...

Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50239)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50239 advisory. - Limit recursion in ri-records CVE-2021-3622 resolves: rhbz1976194 - Bounds check for block exceeding page length CVE-2021-3504 resolves: rhbz1950501...

Linux Distros Unpatched Vulnerability : CVE-2026-31588

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: x86: Use scratch field in MMIO fragment to hold small write values When exiting to userspace to service an emulated MMIO write, copy the to-be-written valu...

Linux Distros Unpatched Vulnerability : CVE-2026-31591

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as allowing...

Linux Distros Unpatched Vulnerability : CVE-2026-31592

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't...

SUSE CVE-2026-31590

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Drop WARN on large size for KVMMEMORYENCRYPTREGREGION Drop the WARN in sevpinmemory on npages overflowing an int, as the WARN is comically trivially to trigger from userspace, e.g. by doing: struct kvmencregion range =...

SUSE CVE-2026-31592

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't stable unless kvm-lock is held or KVM can guarantee KVMSEVINIT2 has...

CVE-2026-31593

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine virtualization module. When Secure Nested Paging SNP is enabled, an attempt to update the state of an already running and encrypted virtual machine can cause the host system to crash. This vulnerability leads to a Denial of...

CVE-2026-31593

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU Reject synchronizing vCPU state to its associated VMSA if the vCPU has already been launched, i.e. if the VMSA has already been encrypted. On a host wit...

CVE-2026-31590

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Drop WARN on large size for KVMMEMORYENCRYPTREGREGION Drop the WARN in sevpinmemory on npages overflowing an int, as the WARN is comically trivially to trigger from userspace, e.g. by doing: struct kvmencregion range =...

CVE-2026-31558

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Make kvmgetvcpubycpuid more robust kvmgetvcpubycpuid takes a cpuid parameter whose type is int, so cpuid can be negative. Let kvmgetvcpubycpuid return NULL for this case so as to make it more robust. This fix an...

DEBIAN-CVE-2026-31564

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix base address calculation in kvmeiointcregsaccess In function kvmeiointcregsaccess, the register base address is caculated from array base address plus offset, the offset is absolute value from the base address...

CLSA-2026-1777042213 qemu-kvm: Fix of 2 CVEs

Fix CVE-2023-3255 qemu-kvm: VNC inflatebuffer infinite loop ELSCVE-57519 - Fix CVE-2023-6683 qemu-kvm: VNC clipboard NULL pointer dereference ELSCVE-57516...

CVE-2026-31593

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU Reject synchronizing vCPU state to its associated VMSA if the vCPU has already been launched, i.e. if the VMSA has already been encrypted. On a host wit...