{"id":"CVE-2026-72253","revision":"fcebac9ea4c54a77b2c10db2292b39a8","records":[{"revision":"fcebac9ea4c54a77b2c10db2292b39a8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72253","aliases":[],"title":"netfilter: nf_conntrack_sip: validate skb_dst() before accessing it","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_sip: validate skb_dst() before accessing it\n\ntc ingress and openvswitch do not guarantee routing information to be\navailable. These subsystems use the conntrack helper infrastructure, and\nthe SIP helper relies on the skb_dst() to be present if\nsip_external_media is set to 1 (which is disabled by default as a module\nparameter).\n\nThis effectively disables the sip_external_media toggle for these\nsubsystems without resulting in a crash.","state":0,"publishedAt":"2026-08-15T05:54:41.49+00:00","modifiedAt":"2026-10-16T18:55:13.536+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/netfilter/nf_conntrack_sip.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"7866116a040b3a23fb094e7d8f7ea3d61b3ac70b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"c5ef7228be04518d95591fc5369a9c554b19756d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"0aec339694a56e263d4b22475ff7211d40900830\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"e64a48c50a1ff565a98c6a98d82b5b942868e76e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"c199ed687c00841daf60e9d131976958583a8c09\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"09755dc62b026076b1d47f83489eb0547c8135e0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"b843a96252f672332837ea2ecb7c8db0acf68e20\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cae3a2627520c3795b54533c5328b77af3405dbe\",\n                            \"lessThan\": \"e5e24a365a5e024efef63cc49abb345fbd4852c5\",\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/netfilter/nf_conntrack_sip.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.266\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.217\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.184\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.148\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.101\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.42\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\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:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/7866116a040b3a23fb094e7d8f7ea3d61b3ac70b","https://git.kernel.org/stable/c/c5ef7228be04518d95591fc5369a9c554b19756d","https://git.kernel.org/stable/c/0aec339694a56e263d4b22475ff7211d40900830","https://git.kernel.org/stable/c/e64a48c50a1ff565a98c6a98d82b5b942868e76e","https://git.kernel.org/stable/c/c199ed687c00841daf60e9d131976958583a8c09","https://git.kernel.org/stable/c/09755dc62b026076b1d47f83489eb0547c8135e0","https://git.kernel.org/stable/c/b843a96252f672332837ea2ecb7c8db0acf68e20","https://git.kernel.org/stable/c/e5e24a365a5e024efef63cc49abb345fbd4852c5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72253","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72253","identifiers":["CVE-2026-72253"]},"retained":false,"historicalAffected":[]}],"coverage":[]}