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-2026-31590 KVM: SEV: Drop WARN on large size for KVM_MEMORY_ENCRYPT_REG_REGION

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-2026-31564

CVE-2026-31564 (LoongArch KVM) : The Linux kernel fix addresses a faulty address calculation in the LoongArch KVM implementation, specifically in kvm_eiointc_regs_access(). The code previously derived the register base address by adding an offset to an array base address treated as a u64, which c...

CVE-2026-31564 LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()

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...

EUVD-2026-25457

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...

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...

EUVD-2026-25451

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...

CVE-2026-31558 LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust

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...

CVE-2026-31558 LoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust

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...

EUVD-2026-25446

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 the virtual addresses of S1/S2 descriptors looks really wrong, if offset is not zero. What we want to get for swapping is hva + offset,...

CVE-2026-31553

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 the virtual addresses of S1/S2 descriptors looks really wrong, if offset is not zero. What we want to get for swapping is hva + offset,...

PT-2026-34942

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SEV component where the sev pin memory function triggers a warning when the number of pages overflows an integer. This can be easily triggered from userspace b...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013790)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013790 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Fix crash due to uninitialized currentvmcs KVM enables 'Enlightened VMCS' and...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013809)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013809 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O When completing emulation of...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-007007)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007007 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Flush pages under kvm-lock to fix UAF in svmregisterencregion Do the cache flush of...

kernel security update

4.18.0-553.120.1 - 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...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-006920)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006920 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: use arrayindexnospec with indices that come from guest min and destid are...

CLSA-2026-1775655705 kernel-uek: Fix of 34 CVEs

ALSA: usb-audio: Fix use-after-free in sndusbmixerfree CVE-2026-23089 - HID: core: Harden s32ton against conversion to 0 bits CVE-2025-38556 - KVM: nSVM: Ignore nCR34:0 when loading PDPTEs from memory CVE-2024-50115 - KVM: x86: Reset IRTE to host control if new route isn't postable CVE-2025-37885...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006615)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006615 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: Don't null dereference ops-destroy A KVM device cleanup happens in either of two callbacks: ...

Linux Distros Unpatched Vulnerability : CVE-2026-23425

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Fix ID register initialization for non-protected pKVM guests In protected mode, the hypervisor maintains a separate instance of the kvm structure fo...