{"id":"CVE-2026-74281","revision":null,"records":[{"revision":"d09f1c9742ec406abf710471a7ba119d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74281","aliases":[],"title":"tipc: reject inverted service ranges from peer bindings","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: reject inverted service ranges from peer bindings\n\ntipc_update_nametbl() inserts a binding advertised by a peer node using\nthe lower and upper service-range bounds taken directly from the wire,\nwithout checking that lower <= upper. The local bind path validates the\nordering (tipc_uaddr_valid()), but the name-distribution path does not.\n\nA binding with lower > upper is inserted at the far end of the\nservice-range rbtree (keyed on lower) where no lookup or withdrawal can\never match it (service_range_foreach_match() requires sr->lower <= end).\nThe publication, its service_range node and the augmented rbtree entry\nare then leaked for the lifetime of the namespace, and there is no\nper-peer cap equivalent to TIPC_MAX_PUBL on locally created bindings.\n\nReject inverted ranges in the network path as well. A peer node can\notherwise leak unbounded binding-table memory by sending PUBLICATION\nitems with lower > upper.","state":0,"publishedAt":"2026-08-15T05:57:51.423+00:00","modifiedAt":"2026-10-16T18:55:29.746+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/tipc/name_distr.c\"\n ],\n \"versions\": [\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"cd1955f81bd8ebeef51b324989ac871ad1947fb6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"f683200b83a0085d4e11abea8c1fdd9fdfb95b0b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"f1715d92ee3095d9215b493a8603a81f646fcf61\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"581ef56e5c34d475056ce086dc2ba0e872ba6857\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"7e401233f9bb74a626e70698d0d62f3a94ac0676\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"973bf0ed896b9898668dbadb82ed849d7d573010\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"37922ea4a3105176357c8d565a9d982c4a08714a\",\n \"lessThan\": \"2afb648f7b99216c687db1f89739c995e1144153\",\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/tipc/name_distr.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.17\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.17\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.212\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.178\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.145\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.97\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.40\",\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/cd1955f81bd8ebeef51b324989ac871ad1947fb6","https://git.kernel.org/stable/c/f683200b83a0085d4e11abea8c1fdd9fdfb95b0b","https://git.kernel.org/stable/c/f1715d92ee3095d9215b493a8603a81f646fcf61","https://git.kernel.org/stable/c/581ef56e5c34d475056ce086dc2ba0e872ba6857","https://git.kernel.org/stable/c/7e401233f9bb74a626e70698d0d62f3a94ac0676","https://git.kernel.org/stable/c/973bf0ed896b9898668dbadb82ed849d7d573010","https://git.kernel.org/stable/c/2afb648f7b99216c687db1f89739c995e1144153"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74281","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74281","identifiers":["CVE-2026-74281"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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