{"action":"Upgrade linux to 5.15.15-1 or later.","affected":[{"fixed":"5.15.15-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.15.15-1"],"id":"tcs_01M5NG8HVR0XJZHCFV48JS63AC","modified_at":"2026-10-23T18:04:20.891228883Z","published_at":"2024-06-19T15:15:53.890Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-47593","https://security-tracker.debian.org/tracker/CVE-2021-47593"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-47593#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-47593"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: mptcp: clear 'kern' flag from fallback sockets The mptcp ULP extension relies on sk->sk_sock_kern being set correctly: It prevents s"}