{"action":"Upgrade linux to 6.1.187-1 or later.","affected":[{"fixed":"6.1.187-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.187-1"],"id":"tcs_01M5NVPBGC2XTZY0T19YQCYJ20","modified_at":"2026-10-23T18:05:44.889954424Z","published_at":"2026-08-26T15:17:09.477Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-80550","https://security-tracker.debian.org/tracker/CVE-2026-80550"],"severity":{"label":"high","score":7.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-80550","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-80550"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Fix out of bounds check on CCW array The routine ccwchain_calc_length() counts the number of channel command words (C"}