https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 03:48:53 +0000 https://vulnerability.circl.lu/vuln/bell-cve-2026-64284 <p><strong>Affected:</strong> Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts</p> <p><strong>Affected:</strong> Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts</p> https://vulnerability.circl.lu/vuln/bell-cve-2026-64284 https://vulnerability.circl.lu/vuln/certfr-2026-avi-1031 certfr-2026-avi-1031 https://vulnerability.circl.lu/vuln/certfr-2026-avi-1031 https://vulnerability.circl.lu/vuln/fkie_cve-2026-64284 <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>KVM: x86: Ensure vendor&#39;s exit handler runs before fastpath userspace exits</p> <p>Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty.</p> <p>Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as that risks consuming stale state in a fastpath handler. That will be addressed in a future change.</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>KVM: x86: Ensure vendor&#39;s exit handler runs before fastpath userspace exits</p> <p>Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty.</p> <p>Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as that risks consuming stale state in a fastpath handler. That will be addressed in a future change.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-64284 https://vulnerability.circl.lu/vuln/ghsa-gv38-jcpj-j76h <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>KVM: x86: Ensure vendor&#39;s exit handler runs before fastpath userspace exits</p> <p>Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty.</p> <p>Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as that risks consuming stale state in a fastpath handler. That will be addressed in a future change.</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>KVM: x86: Ensure vendor&#39;s exit handler runs before fastpath userspace exits</p> <p>Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty.</p> <p>Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as that risks consuming stale state in a fastpath handler. That will be addressed in a future change.</p> https://vulnerability.circl.lu/vuln/ghsa-gv38-jcpj-j76h https://vulnerability.circl.lu/vuln/opensuse-su-2026:11476-1 <p>kernel-devel-7.1.7-1.1 on GA media</p> <p>kernel-devel-7.1.7-1.1 on GA media</p> https://vulnerability.circl.lu/vuln/opensuse-su-2026:11476-1 https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-64284 <p><strong>Affected:</strong> Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 119 more</p> <p>In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ensure vendor&#39;s exit handler runs before fastpath userspace exits Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty. Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as that risks consuming stale state in a fastpath handler. That will be addressed in a future change.</p> <p><strong>Affected:</strong> Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 119 more</p> <p>In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ensure vendor&#39;s exit handler runs before fastpath userspace exits Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains control of the vCPU. E.g. for VMX (and soon to be for SVM as well), KVM needs to flush the PML buffer prior to exiting to userspace, otherwise any memory written by the final KVM_RUN might never be flagged as dirty. Note, waiting to snapshot CR0 and CR3 until svm_handle_exit() is flawed in general, as that risks consuming stale state in a fastpath handler. That will be addressed in a future change.</p> https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-64284 https://vulnerability.circl.lu/vuln/wid-sec-w-2026-2527 <p>Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, dazu können DoS-Angriffe, die Offenlegung von Informationen, die Beschädigung des Speichers oder die Umgehung von Sicherheitsmaßnahmen gehören.</p> <p>Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, dazu können DoS-Angriffe, die Offenlegung von Informationen, die Beschädigung des Speichers oder die Umgehung von Sicherheitsmaßnahmen gehören.</p> https://vulnerability.circl.lu/vuln/wid-sec-w-2026-2527