{"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"}}}}