{"action":"Upgrade linux to 6.12.13-1 or later.","affected":[{"fixed":"6.12.13-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.13-1"],"id":"tcs_01M5NN23B7PMR1CX97DHX00CJW","modified_at":"2026-09-01T20:05:42.506580538Z","published_at":"2025-02-27T20:16:03.783Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21812","https://security-tracker.debian.org/tracker/CVE-2025-21812"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21812#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21812"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ax25: rcu protect dev->ax25_ptr syzbot found a lockdep issue [1]. We should remove ax25 RTNL dependency in ax25_setsockopt() This sh"}