{"id":"CVE-2026-93210","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-\u003etgthint is\nNULL, and dfs_cache_noreq_update_tgthint() assumes ce-\u003etgthint is always\nvalid.\n\nIn preparation for clearing ce-\u003etgthint in free_tgts(), harden callers\nof get_tgt_name() against ERR_PTR results and harden\ndfs_cache_noreq_update_tgthint() against NULL pointer dereferences.","modified":"2026-09-26T03:48:34.708147202Z","published":"2026-09-24T15:10:33.577Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93210.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93210.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93210"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"54be1f6c1c37498bba557049df646cc239fa37e3"},{"fixed":"a48328afbc3f63e3b9de8827e2e16c15b17976f7"},{"fixed":"6cb7f9fed8f40f28fbd464ca99c946951afc0952"},{"fixed":"66dbcdbb0cadffd12eb8f2b115fd57d384c5109d"},{"fixed":"846f0709559b9e27024e126a80bc7afb76516912"},{"fixed":"7e32da6047d9afdae8dd17b87b4c8d97363c4ee2"},{"fixed":"bf86c08123c6ab8c61cc0be1dad7540db93738ff"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93210.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.109"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.50"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93210.json"}}],"schema_version":"1.9.0"}