{"schema":"threatline.record/2","record":{"id":"CVE-2026-98172","aliases":[],"summary":"smb: client: fix smbd_connection leak on cifs_get_tcp_session() error","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix smbd_connection leak on cifs_get_tcp_session() error\n\nWhen an RDMA connection is successfully established via\nsmbd_get_connection() but cifs_get_tcp_session() later fails (e.g.\nkthread_create() returns an error), the error path frees tcp_ses\nwithout first destroying the smbd_connection.\n\nFix this by calling smbd_destroy() in the out_err cleanup path before\nkfree(tcp_ses).  smbd_destroy() safely handles the case where\nsmbd_conn is NULL, so it can be called unconditionally.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98172","source_modified_at":"2026-10-19T09:15:03.619Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"2f8946464b11822169b9f10c7cf58a2440b51d54","lessThan":"3164402c58940ff58a3cecdb026405f07b0253af","status":"affected","versionType":"git"},{"version":"2f8946464b11822169b9f10c7cf58a2440b51d54","lessThan":"e3344bb0ff5ec8a276f42239e140f5442841ef23","status":"affected","versionType":"git"},{"version":"2f8946464b11822169b9f10c7cf58a2440b51d54","lessThan":"5c908e49d349266dff0c86dda6a05df0ff19b824","status":"affected","versionType":"git"},{"version":"2f8946464b11822169b9f10c7cf58a2440b51d54","lessThan":"928edc4bd6a617caabeb575fc13c254d9df623c4","status":"affected","versionType":"git"},{"version":"2f8946464b11822169b9f10c7cf58a2440b51d54","lessThan":"b26a3fcf2f1c2cadba400290b639f01395db8fc8","status":"affected","versionType":"git"},{"version":"2f8946464b11822169b9f10c7cf58a2440b51d54","lessThan":"e75c96157d45e498970158c8f7373d90102e33b9","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98172","source_modified_at":"2026-10-19T09:15:03.619Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98172","source_modified_at":"2026-10-19T09:15:03.619Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3164402c58940ff58a3cecdb026405f07b0253af","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98172","source_modified_at":"2026-10-19T09:15:03.619Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5c908e49d349266dff0c86dda6a05df0ff19b824","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98172","source_modified_at":"2026-10-19T09:15:03.619Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"928edc4bd6a617caabeb575fc13c254d9df623c4","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00172,"percentile":0.06318,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:44:16.721Z","modified_at":"2026-10-19T09:15:03.619Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98172","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:15:03.619Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98172","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/3164402c58940ff58a3cecdb026405f07b0253af"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e3344bb0ff5ec8a276f42239e140f5442841ef23"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5c908e49d349266dff0c86dda6a05df0ff19b824"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/928edc4bd6a617caabeb575fc13c254d9df623c4"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/b26a3fcf2f1c2cadba400290b639f01395db8fc8"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e75c96157d45e498970158c8f7373d90102e33b9"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:15:03.619Z","content_hash":"676e581453c2b55f2e76a4442f3d46bc903dde4340cf932e6b39e3e8613042b6"}}