xen-4.17.1_04-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2024:12959 Final 1 1 2024-06-17T21:45:33Z current 2024-06-17T21:45:33Z 2024-06-17T21:45:33Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z xen-4.17.1_04-1.1 on GA media These are all security issues fixed in the xen-4.17.1_04-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2024-12959 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) E-Mail link for openSUSE-SU-2024:12959 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2022-42336/ SUSE CVE CVE-2022-42336 page openSUSE Tumbleweed xen-4.17.1_04-1.1 xen-devel-4.17.1_04-1.1 xen-doc-html-4.17.1_04-1.1 xen-libs-4.17.1_04-1.1 xen-tools-4.17.1_04-1.1 xen-tools-domU-4.17.1_04-1.1 xen-tools-xendomains-wait-disk-4.17.1_04-1.1 xen-4.17.1_04-1.1 as a component of openSUSE Tumbleweed xen-devel-4.17.1_04-1.1 as a component of openSUSE Tumbleweed xen-doc-html-4.17.1_04-1.1 as a component of openSUSE Tumbleweed xen-libs-4.17.1_04-1.1 as a component of openSUSE Tumbleweed xen-tools-4.17.1_04-1.1 as a component of openSUSE Tumbleweed xen-tools-domU-4.17.1_04-1.1 as a component of openSUSE Tumbleweed xen-tools-xendomains-wait-disk-4.17.1_04-1.1 as a component of openSUSE Tumbleweed Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads require SSBD active in order to coordinate it, such logic relies on using a per-core counter of threads that have SSBD active. When running on the mentioned hardware, it's possible for a guest to under or overflow the thread counter, because each write to VIRT_SPEC_CTRL.SSBD by the guest gets propagated to the helper that does the per-core active accounting. Underflowing the counter causes the value to get saturated, and thus attempts for guests running on the same core to set SSBD won't have effect because the hypervisor assumes it's already active. CVE-2022-42336 openSUSE Tumbleweed:xen-4.17.1_04-1.1 openSUSE Tumbleweed:xen-devel-4.17.1_04-1.1 openSUSE Tumbleweed:xen-doc-html-4.17.1_04-1.1 openSUSE Tumbleweed:xen-libs-4.17.1_04-1.1 openSUSE Tumbleweed:xen-tools-4.17.1_04-1.1 openSUSE Tumbleweed:xen-tools-domU-4.17.1_04-1.1 openSUSE Tumbleweed:xen-tools-xendomains-wait-disk-4.17.1_04-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2022-42336.html CVE-2022-42336 https://bugzilla.suse.com/1211433 SUSE Bug 1211433