{"action":"Upgrade linux to 6.12.15-1 or later.","affected":[{"fixed":"6.12.15-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.12.15-1"],"id":"tcs_01M5NN25PAVMZNEJM7113MT4WC","modified_at":"2026-09-01T20:05:42.592476794Z","published_at":"2025-02-27T20:16:04.520Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21820","https://security-tracker.debian.org/tracker/CVE-2025-21820"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21820#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21820"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: tty: xilinx_uartps: split sysrq handling lockdep detects the following circular locking dependency: CPU 0 CPU 1 ===================="}