{"action":"Upgrade linux-6.12 to 6.12.107-1~deb12u1 or later.","affected":[{"fixed":"6.12.107-1~deb12u1","introduced":"0"}],"component":"linux-6.12","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.12.107-1~deb12u1"],"id":"tcs_01M5NVS0NXD9DB3TXXV2CBM25X","modified_at":"2026-11-07T10:02:11.785898131Z","published_at":"2026-09-04T16:18:05.613Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-80793","https://security-tracker.debian.org/tracker/CVE-2026-80793"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-80793#Debian:12/linux-6.12","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-80793"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ipv4: reject undersized MTUs in ip_do_fragment() ip_do_fragment() subtracts the IPv4 header length from the effective MTU and passes"}