{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93210", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.093Z", "datePublished": "2026-09-24T15:10:33.577Z", "dateUpdated": "2026-09-25T12:42:37.060Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-25T12:42:37.060Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/dfs_cache.c"], "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"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/dfs_cache.c"], "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-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7"}, {"url": "https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952"}, {"url": "https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d"}, {"url": "https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912"}, {"url": "https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2"}, {"url": "https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff"}], "title": "smb: client: harden DFS cache against invalid target hints", "x_generator": {"engine": "bippy-1.2.0"}}}}