{"action":"Upgrade linux to 6.12.94-1 or later.","affected":[{"fixed":"6.12.94-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.12.94-1"],"id":"tcs_01M5NTCA3WNQEHNG3NMPSES30S","modified_at":"2026-10-23T18:05:03.095756680Z","published_at":"2026-07-19T16:17:38.823Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-63993","https://security-tracker.debian.org/tracker/CVE-2026-63993"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-63993#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-63993"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() skb_tunnel_check_pmtu() can change skb->head. Reusing old_ip"}