{"action":"Upgrade linux to 6.12.105-1 or later.","affected":[{"fixed":"6.12.105-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.105-1"],"id":"tcs_01M5NVPC23D06C1TGNN3ZWVPD2","modified_at":"2026-10-23T18:04:42.129159774Z","published_at":"2026-08-26T15:17:09.610Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-80551","https://security-tracker.debian.org/tracker/CVE-2026-80551"],"severity":{"label":"critical","score":9.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-80551#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-80551"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure first IDAW remains constant The first IDAW in a list does not need to be on a 2K/4K boundary like all others,"}