CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47062 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47062 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

CVE-2021-47062

The CVE-2021-47062 vulnerability affects the Linux kernel KVM SVM path. The issue occurs when iterating vCPUs for SEV-encrypted VMSAs using created_vcpus, which does not guarantee a vCPU’s existence and can trigger a NULL pointer dereference. The documented fix switches to iterating with online_v...

CVE-2021-47062

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs Use the kvmforeachvcpu helper to iterate over vCPUs when encrypting VMSAs for SEV, which effectively switches to use onlinevcpus instead of createdvcpus. This fix...

PT-2024-21507 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.8.0-rc2+ Description: The issue is related to the LoongArch architecture in the Linux kernel. When the hardware platform has more than 64 CPUs, the system will crash due to an array overflow when parsing the...

sysstat security and bug fix update

11.7.3-11.0.1 - add mpstat -H option to also display physically hotplugged vCPUs Orabug: 34683071 11.7.3-11 - fix the arithmetic overflow in allocatestructures that is still possible on some 32 bit systems CVE-2023-33204 11.7.3-10 - Fix incorrect CPU usage on ALL CPU field for iowait in mpstat...

CVE-2023-4155 Sev-es / sev-snp vmgexit double fetch vulnerability

A flaw was found in KVM AMD Secure Encrypted Virtualization SEV in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the VMGEXIT handler recursively. If an attacker manages to call the handler multiple time...

Fedora 37 : kernel (2023-d9509be489)

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-d9509be489 advisory. The 6.4.10 stable kernel update contains a number of important fixes across the tree. Tenable has extracted the preceding description block directly...

sysstat security and bug fix update

11.7.3-9.0.1 - add mpstat -H option to also display physically hotplugged vCPUs Orabug: 34683071 11.7.3-9 - add -f flag to force fdatasync after sa file update 2153192 11.7.3-8 - arithmetic overflow in allocatestructures on 32 bit systems CVE-2022-39377...

sysstat security and bug fix update

12.5.4-5.0.1 - add mpstat -H option to also display physically hotplugged vCPUs Orabug: 34683087 12.5.4-5 - Fix --dec argument validation rhbz2080650 12.5.4-4 - arithmetic overflow in allocatestructures on 32 bit systems CVE-2022-39377...

SUSE CVE-2013-4153

Double free vulnerability in the qemuAgentGetVCPUs function in qemu/qemuagent.c in libvirt 1.0.6 through 1.1.0 allows remote attackers to cause a denial of service daemon crash via a cpu count request, as demonstrated by the "virsh vcpucount dom --guest" command...

SUSE CVE-2015-7969

Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service memory consumption via a large number of "teardowns" of domains with the vcpu pointer array allocated using the 1 XENDOMCTLmaxvcpus hypercall or the...

SUSE CVE-2020-25604

An issue was discovered in Xen through 4.14.x. There is a race condition when migrating timers between x86 HVM vCPUs. When migrating timers of x86 HVM guests between its vCPUs, the locking model used allows for a second vCPU of the same guest also operating on the timers to release a lock that it...

ALSA-2022:5249 Important: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak CVE-2022-1012 kernel: race condition in perfeventopen leads to privilege escalation...

GSD-2021-1000298 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.4 by commit...

UVI-2021-1000298 KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

KVM: SVM: Use onlinevcpus, not createdvcpus, to iterate over vCPUs This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.4 by commit...

Low: Red Hat Security Advisory: Red Hat Virtualization security, bug fix, and enhancement update

An update is now available for Red Hat Virtualization Engine 4.4. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link...

RHEL 8 : Red Hat Virtualization (RHSA-2020:5179)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5179 advisory. The org.ovirt.engine-root is a core component of oVirt. The following packages have been upgraded to a later upstream version: engine-db-que...