{"schema":"threatline.record/2","record":{"id":"CVE-2026-93210","aliases":[],"summary":"smb: client: harden DFS cache against invalid target hints","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: harden DFS cache against invalid target hints\n\nCurrently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is\nNULL, and dfs_cache_noreq_update_tgthint() assumes ce->tgthint is always\nvalid.\n\nIn preparation for clearing ce->tgthint in free_tgts(), harden callers\nof get_tgt_name() against ERR_PTR results and harden\ndfs_cache_noreq_update_tgthint() against NULL pointer dereferences.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93210","source_modified_at":"2026-10-19T09:07:22.393Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"54be1f6c1c37498bba557049df646cc239fa37e3","lessThan":"a48328afbc3f63e3b9de8827e2e16c15b17976f7","status":"affected","versionType":"git"},{"version":"54be1f6c1c37498bba557049df646cc239fa37e3","lessThan":"6cb7f9fed8f40f28fbd464ca99c946951afc0952","status":"affected","versionType":"git"},{"version":"54be1f6c1c37498bba557049df646cc239fa37e3","lessThan":"66dbcdbb0cadffd12eb8f2b115fd57d384c5109d","status":"affected","versionType":"git"},{"version":"54be1f6c1c37498bba557049df646cc239fa37e3","lessThan":"846f0709559b9e27024e126a80bc7afb76516912","status":"affected","versionType":"git"},{"version":"54be1f6c1c37498bba557049df646cc239fa37e3","lessThan":"7e32da6047d9afdae8dd17b87b4c8d97363c4ee2","status":"affected","versionType":"git"},{"version":"54be1f6c1c37498bba557049df646cc239fa37e3","lessThan":"bf86c08123c6ab8c61cc0be1dad7540db93738ff","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93210","source_modified_at":"2026-10-19T09:07:22.393Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.109","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.50","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.4","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-2026-93210","source_modified_at":"2026-10-19T09:07:22.393Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6cb7f9fed8f40f28fbd464ca99c946951afc0952","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93210","source_modified_at":"2026-10-19T09:07:22.393Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"66dbcdbb0cadffd12eb8f2b115fd57d384c5109d","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93210","source_modified_at":"2026-10-19T09:07:22.393Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"846f0709559b9e27024e126a80bc7afb76516912","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93210","source_modified_at":"2026-10-19T09:07:22.393Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7e32da6047d9afdae8dd17b87b4c8d97363c4ee2","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00172,"percentile":0.06311,"score_date":"2026-10-23"},"published_at":"2026-09-24T15:10:33.577Z","modified_at":"2026-10-19T09:07:22.393Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93210","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:07:22.393Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93210","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/a48328afbc3f63e3b9de8827e2e16c15b17976f7"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff"}],"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":"2026-10-19T09:07:22.393Z","content_hash":"ecc28fa003f88895ceab448a1e87c5adeda8b0395d4b13c5aac8e1679a484727"}}