{"schema":"threatline.record/2","record":{"id":"CVE-2026-98174","aliases":[],"summary":"smb: client: fix rlist race and missing initialization","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix rlist race and missing initialization\n\nTCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next\nand ->prev to NULL instead of pointing to itself, making list_empty()\nalways return false and list_add() dereference a NULL ->prev pointer.\n\nAlso, cifs_signal_cifsd_for_reconnect() can be called concurrently\nfrom multiple cifsd threads, allowing the same server's rlist node to\nbe added twice into the local list, corrupting it.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"b5f924ffbfa976e4b97f17e8132c595b97482c2d","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"5a8f82f9c5839389cf4036029dd75a9911049e83","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"04082b1833856cb9ed87e0d3d5f04cbf836cf7da","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"5f270f091256da1338c3631083e15d7f83cc05e1","status":"affected","versionType":"git"},{"version":"0","lessThan":"6.6.158","status":"affected","versionType":"semver"},{"version":"0","lessThan":"6.12.112","status":"affected","versionType":"semver"},{"version":"0","lessThan":"6.18.54","status":"affected","versionType":"semver"},{"version":"0","lessThan":"7.2.8","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"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-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5a8f82f9c5839389cf4036029dd75a9911049e83","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"04082b1833856cb9ed87e0d3d5f04cbf836cf7da","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5f270f091256da1338c3631083e15d7f83cc05e1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6.6.158","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6.12.112","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6.18.54","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","source_modified_at":"2026-10-19T09:15:05.758Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7.2.8","basis":"first unaffected version stated in the CVE record"}],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00365,"percentile":0.29205,"score_date":"2026-10-23"},"published_at":"2026-10-06T08:44:18.350Z","modified_at":"2026-10-19T09:15:05.758Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98174","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:15:05.758Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98174","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/b5f924ffbfa976e4b97f17e8132c595b97482c2d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5a8f82f9c5839389cf4036029dd75a9911049e83"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/04082b1833856cb9ed87e0d3d5f04cbf836cf7da"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5f270f091256da1338c3631083e15d7f83cc05e1"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:15:05.758Z","content_hash":"721b8639ece9ab86f22f0df43857d4c31244a1bdb9c20b4eb182ef0f544d324f"}}