RHEL 8 : kernel (RHSA-2025:21667)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:21667 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nfsd: don't ignore the return...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

RHEL 9 : kernel (RHSA-2025:21469)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:21469 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: KVM: x86/hyper-v: Skip...

CVE-2025-40181

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

EUVD-2025-150393

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

EUVD-2025-150390

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix debug checking for np-guests using huge mappings When running with transparent huge pages and CONFIGNVHEEL2DEBUG then the debug checking in asserthostsharedguest fails on the launch of an np-guest. This WARNON...

Linux Distros Unpatched Vulnerability : CVE-2025-40181

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory...

Linux Distros Unpatched Vulnerability : CVE-2025-40184

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 debug checking for np- guests using huge mappings When running with...

CVE-2025-40184

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix debug checking for np-guests using huge mappings When running with transparent huge pages and CONFIGNVHEEL2DEBUG then the debug checking in asserthostsharedguest fails on the launch of an np-guest. This WARNON...

DEBIAN-CVE-2025-40181

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

CVE-2025-40184

The CVE-2025-40184 entry documents a Linux kernel KVM/arm64 vulnerability: when using transparent huge pages with NVHE EL2 debug, the debug check in assert_host_shared_guest() may trigger a WARN_ON leading to a host panic. The issue arises because __pkvm_host_relax_perms_guest() assumes a single-...

CVE-2025-40181 x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990832)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990832 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICCSGIEL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest...

kernel: KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Load DR6 with guest value only before entering .vcpurun loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpurun loop to fix a bug where KVM can load hardware with a stale...

Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: isotp: fix potential CAN frame reception race in isotprcv CVE-2022-48830 kernel: soc: qcom: cmd-db: Map shared memory as WC, not WB CVE-2024-46689 kernel: Squashfs: sanity check...

Unbreakable Enterprise kernel security update

5.4.17-2136.349.3.1 - i40e: add validation for ringlen param Lukasz Czapnik Orabug: 38604171 CVE-2025-39973 - i40e: increase max descriptors for XL710 Justin Bronder Orabug: 38604171 CVE-2025-39973 5.4.17-2136.349.3 - Revert 'net/mlx5e: Update and set Xon/Xoff upon MTU set' Jakub Kicinski Orabug:...

Security update for the Linux Kernel

The SUSE Linux Enterprise Server 16.0 and SUSE Linux Micro 6.2 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2024-53164: net: sched: fix ordering of qlen adjustment bsc1234863. CVE-2024-57891: schedext: Fix invalid irq restore in scxopsbypass...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990426)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990426 advisory. In the Linux kernel, the following vulnerability has been resolved: mmmremap.c: avoid pointless invalidaterangestart/end on mremapoldsize=0 If an mremap syscall with...

The vulnerability in the arch/riscv/kvm/vmid.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability in the arch/riscv/kvm/vmid.c module of the Linux operating system is related to insufficient validation of input data. Exploiting this vulnerability can allow an attacker to cause a service failure...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989694)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989694 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: fix panic on out-of-bounds guest IRQ As guestirq is coming from KVMIRQFD API call, it m...