{"action":"Upgrade linux to 6.5.3-1 or later.","affected":[{"fixed":"6.5.3-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.5.3-1"],"id":"tcs_01M5NJQ9FPYZC05PBJ7ZMHHYNH","modified_at":"2026-10-26T18:03:08.818885769Z","published_at":"2025-09-18T16:15:47.967Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-53438","https://security-tracker.debian.org/tracker/CVE-2023-53438"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-53438#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-53438"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: x86/MCE: Always save CS register on AMD Zen IF Poison errors The Instruction Fetch (IF) units on current AMD Zen-based systems do no"}