CVE-2026-63806 KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()

In the Linux kernel, the following vulnerability has been resolved: KVM: Replace guest-triggerable BUGON in ioeventfd datamatch with getunaligned Drop a BUGON that has been reachable since it was first added, way back in 2009, and instead use getunaligned to perform potentially-unaligned accesses...

CVE-2026-63806 KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()

In the Linux kernel, the following vulnerability has been resolved: KVM: Replace guest-triggerable BUGON in ioeventfd datamatch with getunaligned Drop a BUGON that has been reachable since it was first added, way back in 2009, and instead use getunaligned to perform potentially-unaligned accesses...

CVE-2026-63794

The CVE-2026-63794 issue affects the Linux kernel KVM SEV path (sev_dbg_crypt) where the ENCRYPT path could overflow a single-page buffer when d_off > s_off, because the per-iteration transfer length wasn’t bounded by the destination page offset. The root cause is that len was bounded by (PAGE...

CVE-2026-63794

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Fix page overflow in sevdbgcrypt for ENCRYPT path In sevdbgcrypt, the per-iteration transfer length is bounded by the source page offset PAGESIZE - soff but not by the destination page offset PAGESIZE - doff. When doff...

CVE-2026-63794 KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Fix page overflow in sevdbgcrypt for ENCRYPT path In sevdbgcrypt, the per-iteration transfer length is bounded by the source page offset PAGESIZE - soff but not by the destination page offset PAGESIZE - doff. When doff...

EUVD-2026-45460

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Fix page overflow in sevdbgcrypt for ENCRYPT path In sevdbgcrypt, the per-iteration transfer length is bounded by the source page offset PAGESIZE - soff but not by the destination page offset PAGESIZE - doff. When doff...

PT-2026-61255

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SEV component when processing Page State Change PSC requests. The system fails to properly validate the PSC buffer against the effective size of the scratch...

PT-2026-61256

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SEV implementation regarding the calculation of the maximum length of the in-GHCB scratch area. When the scratch area is located within the GHCB shared buffer,...

PT-2026-61489

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SVM implementation for Hygon Family 18h CPUs. Due to a hardware erratum, the system may read a stale IsRunning=1 bit during ICR write emulation. This causes a...

PT-2026-61423

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM arm64 vgic-its component where the vgic its restore dte function fails to validate the Size field of a restored ITS Device Table Entry DTE. This allows userspa...

PT-2026-61258

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM arm64 implementation regarding how the ZCR EL2 register is handled for VHE guest hypervisors. When a guest hypervisor updates ZCR EL2 via ZCR EL1, the value is...

PT-2026-61122

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM x86 emulator where a guest can trigger a BUG ON in the ioeventfd datamatch process. This occurs when a guest emits a store that splits a page starting at page...

PT-2026-61074

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the iommu/vt-d component where the kernel lacks dirty tracking support on nested domains attached to a Process Address Space ID PASID. A PASID is a unique identifier...

Linux Distros Unpatched Vulnerability : CVE-2026-63806

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: Replace guest-triggerable BUGON in ioeventfd datamatch with getunaligned Drop a BUGON that has been reachable since it was first added, way back in 2009, a...

EUVD-2026-45302

IBM PowerVM Novalink 2.2.02.2.12.2.1.1, and 2.3.02.3.0.12.3.12.3.2 IBM NovaLink APIs misconfiguration may increase attack surface and enable unintended or unauthorized operations under non-default conditions...

CVE-2026-14971 This PowerVM Novalink update is being released to address

IBM PowerVM Novalink 2.2.02.2.12.2.1.1, and 2.3.02.3.0.12.3.12.3.2 IBM NovaLink APIs misconfiguration may increase attack surface and enable unintended or unauthorized operations under non-default conditions...

CVE-2026-9171

CVE-2026-9171 is an IBM WebSphere Application Server/Liberty denial-of-service vulnerability caused by sending a specially crafted request that can lead to memory resource exhaustion. It affects PowerVM Novalink versions 2.2.0, 2.2.1, 2.2.1.1, 2.3.0, 2.3.0.1, 2.3.1, 2.3.2. IBM IBM-provided bullet...

SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:3044-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3044-1 advisory. The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues The following security issues were fixed: -...

Exploit for CVE-2026-53359

AlmaLinux 9.5 — Mitigasi Januscape CVE-2026-53359 & Bad Epol...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine x86 shadow paging mechanism. This use-after-free vulnerability arises from incorrect handling of Guest Frame Numbers GFNs when guest page tables are modified. A local attacker with control over a guest virtual machine could...