{"action":"Upgrade linux to 6.12.10-1 or later.","affected":[{"fixed":"6.12.10-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.10-1"],"id":"tcs_01M5NN0E9J7VS10B7YPAJ26XWZ","modified_at":"2026-10-15T09:47:35.193365502Z","published_at":"2025-01-20T14:15:27.027Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21655","https://security-tracker.debian.org/tracker/CVE-2025-21655"],"severity":{"label":"medium","score":4.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21655#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21655"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period io_eventfd_do_signal() is invoked from an RCU callback, but w"}