{"id":"CVE-2025-21765","revision":"946b400a3dc94ee9a8b875617b357c7d","records":[{"revision":"946b400a3dc94ee9a8b875617b357c7d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-21765","aliases":[],"title":"ipv6: use RCU protection in ip6_default_advmss()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: use RCU protection in ip6_default_advmss()\n\nip6_default_advmss() needs rcu protection to make\nsure the net structure it reads does not disappear.","state":0,"publishedAt":"2025-02-27T02:18:16.078+00:00","modifiedAt":"2026-10-15T01:04:13.418+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ipv6/route.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"78ad057472d8c76e0602402269222f9f9c698790\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"d02f30d220ef9511568a48dba8a9004c65f8d904\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"28de355b63ad42309ed5a03ee7c436c90512265b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"84212387caadb211cd9dadd6fd5563bd37dc1f5e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"4176a68b0db8fc74ac14fcd00ba8231371051dc2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"713a40c892f40300d63691d9f85b2a23b48fe1e8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"550ed693f47370502a71b85382e7f9e6417300b8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5578689a4e3c04f2d43ea39736fd3fa396d80c6e\",\n                            \"lessThan\": \"3c8ffcd248da34fc41e52a46e51505900115fc2a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/ipv6/route.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.26\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.26\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.291\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.235\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.179\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.129\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.79\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.16\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13.4\",\n                            \"lessThanOrEqual\": \"6.13.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/78ad057472d8c76e0602402269222f9f9c698790","https://git.kernel.org/stable/c/d02f30d220ef9511568a48dba8a9004c65f8d904","https://git.kernel.org/stable/c/28de355b63ad42309ed5a03ee7c436c90512265b","https://git.kernel.org/stable/c/84212387caadb211cd9dadd6fd5563bd37dc1f5e","https://git.kernel.org/stable/c/4176a68b0db8fc74ac14fcd00ba8231371051dc2","https://git.kernel.org/stable/c/713a40c892f40300d63691d9f85b2a23b48fe1e8","https://git.kernel.org/stable/c/550ed693f47370502a71b85382e7f9e6417300b8","https://git.kernel.org/stable/c/3c8ffcd248da34fc41e52a46e51505900115fc2a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-21765","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-21765","identifiers":["CVE-2025-21765"]},"retained":false,"historicalAffected":[]}],"coverage":[]}