{"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_01M5NN3ZTC3MDK1V6SDGY1ERRZ","modified_at":"2026-09-01T20:05:43.289644745Z","published_at":"2025-04-01T16:15:29.710Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21983","https://security-tracker.debian.org/tracker/CVE-2025-21983"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21983#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21983"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: mm/slab/kvfree_rcu: Switch to WQ_MEM_RECLAIM wq Currently kvfree_rcu() APIs use a system workqueue which is \"system_unbound_wq\" to d"}