CVE-2025-38455 KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Reject SEV-ES intra host migration if vCPU creation is in-flight Reject migration of SEV-ES state if either the source or destination VM is actively creating a vCPU, i.e. if kvmvmioctlcreatevcpu is in the section betwee...

CVE-2025-38455

CVE-2025-38455 is a Linux kernel/KVM vulnerability in the KVM: SVM path. The issue occurs during SEV{-ES} intra-host migration when a vCPU is being created (in-flight) on either source or destination VM, where SEV{-ES} state can be toggled to non-SEV{-ES} in the destination. This can lead to a cr...

The vulnerability of the __kvm_vgic_vcpudestroy() function in the kernel of the Linux operating system’s arch/arm64/kvm/vgic/vgic-init.c file allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the kvmvgicvcpuDestroy function in the kernel of the Linux operating system’s arch/arm64/kvm/vgic/vgic-init.c module is related to the re-use of previously released memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...

OESA-2025-1648 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITESAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written...

SUSE CVE-2022-50227

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Initialize Xen timer only once Add a check for existing xen timers before initializing a new one. Currently kvmxeninittimer is called on every KVMXENVCPUATTRTYPETIMER, which is causing the following ODEBUG crash whe...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Load DR6 with the guest value only before entering the .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 may load hardware with a...

The vulnerability of the sev_vcpu_deliver_sipi_vector() function in the arch/x86/kvm/svm/sev.c module of the virtualization subsystem on the Linux kernel-based x86 platform allows a attacker to cause a service failure.

The vulnerability of the sevvcpudeliversipivector function in the arch/x86/kvm/svm/sev.c module of the virtualization subsystem on the Linux kernel-based x86 platform is related to the assignment of the NULL pointer. Exploiting this vulnerability could allow an attacker to cause a service failure...

UBUNTU-CVE-2025-37936

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: KVM: Mask PEBSENABLE loaded for guest with vCPU's value. When generating the MSRIA32PEBSENABLE value that will be loaded on VM-Entry to a KVM guest, mask the value with the vCPU's desired PEBSENABLE value...

CVE-2025-37936

CVE-2025-37936: Linux kernel issue in perf/x86/intel/KVM where MSR_IA32_PEBS_ENABLE loaded for a guest could be masked incorrectly when deriving PEBS_ENABLE, causing guest PEBS to be enabled unintentionally and potentially crash the guest with a flood of #PFs. The fix masks the guest MSR value us...

SUSE CVE-2025-37849

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvmarchvcpucreate fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak...

CVE-2025-37849

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvmarchvcpucreate fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak...

CVE-2025-37849 KVM: arm64: Tear down vGIC on failed vCPU creation

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvmarchvcpucreate fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak...

CVE-2025-37849 KVM: arm64: Tear down vGIC on failed vCPU creation

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvmarchvcpucreate fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak...

CVE-2025-37849

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvmarchvcpucreate fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak...

CVE-2025-37849

CVE-2025-37849 affects the Linux kernel KVM arm64; the issue occurs when kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, leaving vGIC vCPU data initialised. This can leak memory on vCPU destruction and may cause use-after-free in redistributor handling. The fix adds prope...

CVE-2022-49932

CVE-2022-49932 affects the Linux kernel KVM/vMX path where /dev/kvm is exposed before VMX initialization is complete. The EulerOS advisories (EulerOS-SA-2025-2464/2483, EulerOS-SA-2025-2436/2447) flag this issue as part of kernel fixes and describe the root cause as incomplete initialization prio...

CVE-2022-49884 KVM: Initialize gfn_to_pfn_cache locks in dedicated helper

In the Linux kernel, the following vulnerability has been resolved: KVM: Initialize gfntopfncache locks in dedicated helper Move the gfntopfncache lock initialization to another helper and call the new helper during VM/vCPU creation. There are race conditions possible due to kvmgfntopfncacheinit'...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF bsc1237918. CVE-2022-49465: blk-throttle: Set BIOTHROTTLED when bio has been throttled bsc1238919...

SUSE CVE-2025-22013

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state There are several problems with the way hyp code lazily saves the host's FPSIMD/SVE state, including: Host SVE being discarded unexpectedly due to inconsistent...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: Squashfs: check the inode number is not the invalid value of zero CVE-2024-26982 In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire kvm-srcu when handling KVMSETVCPUEVENTS...