{"action":"Upgrade linux to 6.12.63-1 or later.","affected":[{"fixed":"6.12.63-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.63-1"],"id":"tcs_01M5NNV8BWW215HD40SM24Z5ZB","modified_at":"2026-10-31T10:00:39.410609047Z","published_at":"2025-12-09T16:17:43.923Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-40337","https://security-tracker.debian.org/tracker/CVE-2025-40337"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-40337#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-40337"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Correctly handle Rx checksum offload errors The stmmac_rx function would previously set skb->ip_summed to CHECKSUM_UNNE"}