{"id":"CVE-2025-40074","revision":null,"records":[{"revision":"155bc18eb662402ebb236a037376e872","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40074","aliases":[],"title":"ipv4: start using dst_dev_rcu()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: start using dst_dev_rcu()\n\nChange icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.\n\nChange ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(),\nipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().","state":0,"publishedAt":"2025-10-28T11:48:41.202+00:00","modifiedAt":"2026-10-03T10:55:27.348+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/ipv4/icmp.c\",\n                        \"net/ipv4/ip_fragment.c\",\n                        \"net/ipv4/ipmr.c\",\n                        \"net/ipv4/route.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36\",\n                            \"lessThan\": \"864155c164654110f68a17a63bd0339754790d67\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36\",\n                            \"lessThan\": \"e150f273cd8ed34ebc6d03758aad95c12fc58337\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36\",\n                            \"lessThan\": \"684efb2c86c887685f9aa65e1a21b3df6c1f822d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36\",\n                            \"lessThan\": \"923e0734c386984d45de508528a7a7ad91d791cc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36\",\n                            \"lessThan\": \"6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8\",\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/ipv4/icmp.c\",\n                        \"net/ipv4/ip_fragment.c\",\n                        \"net/ipv4/ipmr.c\",\n                        \"net/ipv4/route.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.106\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.3\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\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:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/864155c164654110f68a17a63bd0339754790d67","https://git.kernel.org/stable/c/e150f273cd8ed34ebc6d03758aad95c12fc58337","https://git.kernel.org/stable/c/684efb2c86c887685f9aa65e1a21b3df6c1f822d","https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc","https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40074","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40074","identifiers":["CVE-2025-40074"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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