{"action":"Upgrade linux to 6.4.4-1 or later.","affected":[{"fixed":"6.4.4-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.4.4-1"],"id":"tcs_01M5NJSAFNR62D4Z4VKK83EWPC","modified_at":"2026-10-26T18:02:39.698788816Z","published_at":"2025-10-07T16:15:47.893Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-53645","https://security-tracker.debian.org/tracker/CVE-2023-53645"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-53645","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-53645"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: bpf: Make bpf_refcount_acquire fallible for non-owning refs This patch fixes an incorrect assumption made in the original bpf_refcou"}