{"id":"CVE-2022-33745","details":"insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.","modified":"2026-03-13T05:51:06.096307Z","published":"2022-07-26T13:15:10.003Z","related":["SUSE-SU-2022:2557-1","SUSE-SU-2022:2560-1","SUSE-SU-2022:2569-1","SUSE-SU-2022:2574-1","SUSE-SU-2022:2591-1","SUSE-SU-2022:2597-1","SUSE-SU-2022:2599-1","SUSE-SU-2022:2599-2","SUSE-SU-2022:2600-1","SUSE-SU-2022:2601-1","SUSE-SU-2022:3665-1","openSUSE-SU-2024:12219-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HUFIMNGYP5VQAA6KE3T2I5GW6UP6F7BS/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYI3OMJ7RIZNL3C6GUWNANNPEUUID6FM/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5272"},{"type":"ADVISORY","url":"https://xenbits.xenproject.org/xsa/advisory-408.txt"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2022/07/26/2"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2022/07/26/3"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/advisory-408.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-33745.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"11.0"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]},{"events":[{"introduced":"0"},{"last_affected":"36"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}