{"action":"Upgrade linux to 6.12.20-1 or later.","affected":[{"fixed":"6.12.20-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.12.20-1"],"id":"tcs_01M5NN3Z06RCTJ0X0JB56DWS24","modified_at":"2026-09-01T20:05:43.332176207Z","published_at":"2025-04-01T16:15:29.390Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21980","https://security-tracker.debian.org/tracker/CVE-2025-21980"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21980#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21980"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: sched: address a potential NULL pointer dereference in the GRED scheduler. If kzalloc in gred_init returns a NULL pointer, the code"}