Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the KVM SEV not locking all vCPUs when SNP completes synchronization and encryption of VMSA. This...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003959)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003959 advisory. A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister MSR access with nested=1 virtualization enabled. In that, L1 guest could access...

EUVD-2022-15379

Malicious code in bioql PyPI...

Siemens SIMATIC Devices Linux Kernel Incomplete Cleanup (CVE-2022-0171)

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root host user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization SEV. This plugin only works with...

kernel: KVM: SVM: Get source vCPUs from source VM for SEV-ES intrahost migration

A flaw was found in the Linux kernel's KVM SVM implementation for AMD SEV-ES. During intrahost VM migration, KVM incorrectly retrieves source vCPUs from the destination VM instead of the source VM. This causes the VMSA Virtual Machine Save Area pointer to remain NULL, leading to a host kernel cra...

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).

...

DEBIAN-CVE-2022-0171

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root host user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization SEV...

A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that L1 guest could access L0's APIC register values via L2 guest when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.

...

Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.145 and fixes at least the following security issues: There is heap-based buffer overflow in the marvell wifi chip driver that allows local users to cause a denial of servicesystem crash or possibly execute arbitrary code CVE-2019-14814,...

Kernel: KVM: nVMX: guest accesses L0 MSR causes potential DoS

A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Register MSR access with nested=1 virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash th...

Linux kernel KVM hypervisor memory misreference vulnerability

Linux kernel is the kernel used by the operating system Linux released by the Linux Foundation in the U.S. KVM hypervisor is one of the kernel-based virtual machines. A memory misreference vulnerability exists in the KVM hypervisor in the Linux kernel. An attacker could exploit this vulnerability...

Virtuozzo 7 : readykernel-patch (VZA-2017-010)

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - The tcpspliceread function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a...