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kernel: KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()

🗓️ 11 Nov 2025 09:13:24Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Verify vCPU online before clamping in kvm_get_vcpu to avoid returning vCPU0 for bad indices.

Related
Packages
Refs
ReporterTitlePublishedViews
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Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-876)
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Tenable Nessus		Amazon Linux 2 : kernel (ALAS-2025-2865)
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2025-088 (ALASKERNEL-5.10-2025-088)
17 Apr 202500:00
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-069 (ALASKERNEL-5.15-2025-069)
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Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-097 (ALASKERNEL-5.4-2025-097)
1 Apr 202500:00
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Tenable Nessus		Amazon Linux AMI : kernel (ALAS-2025-1983)
9 Jun 202500:00
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Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2025:20518)
19 Nov 202500:00
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Tenable Nessus		Debian dla-4102 : linux-config-6.1 - security update
1 Apr 202500:00
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Tenable Nessus		Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update
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Tenable Nessus		EulerOS 2.0 SP12 : kernel (EulerOS-SA-2025-1589)
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.7aarch64kernel5.14.0-611.5.1.el9_7kernel-5.14.0-611.5.1.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7ppc64lekernel5.14.0-611.5.1.el9_7kernel-5.14.0-611.5.1.el9_7.ppc64le.rpm
Red Hat Enterprise Linux9.7s390xkernel5.14.0-611.5.1.el9_7kernel-5.14.0-611.5.1.el9_7.s390x.rpm
Red Hat Enterprise Linux9.7x86_64kernel5.14.0-611.5.1.el9_7kernel-5.14.0-611.5.1.el9_7.x86_64.rpm
Red Hat Enterprise Linux9.7aarch64kernel-64k5.14.0-611.5.1.el9_7kernel-64k-5.14.0-611.5.1.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7aarch64kernel-64k-core5.14.0-611.5.1.el9_7kernel-64k-core-5.14.0-611.5.1.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7aarch64kernel-64k-debug5.14.0-611.5.1.el9_7kernel-64k-debug-5.14.0-611.5.1.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7aarch64kernel-64k-debug-core5.14.0-611.5.1.el9_7kernel-64k-debug-core-5.14.0-611.5.1.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7aarch64kernel-64k-debug-debuginfo5.14.0-611.5.1.el9_7kernel-64k-debug-debuginfo-5.14.0-611.5.1.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7aarch64kernel-64k-debug-devel5.14.0-611.5.1.el9_7kernel-64k-debug-devel-5.14.0-611.5.1.el9_7.aarch64.rpm
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21 Jul 2026 20:57Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.8
EPSS0.00211
SSVC
kernel virtualizationvirtual CPU onlineclamping safeguardcpu array race
4