{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "54be1f6c1c37498bba557049df646cc239fa37e3"
            },
            {
              "fixed": "a48328afbc3f63e3b9de8827e2e16c15b17976f7"
            },
            {
              "fixed": "6cb7f9fed8f40f28fbd464ca99c946951afc0952"
            },
            {
              "fixed": "66dbcdbb0cadffd12eb8f2b115fd57d384c5109d"
            },
            {
              "fixed": "846f0709559b9e27024e126a80bc7afb76516912"
            },
            {
              "fixed": "7e32da6047d9afdae8dd17b87b4c8d97363c4ee2"
            },
            {
              "fixed": "bf86c08123c6ab8c61cc0be1dad7540db93738ff"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "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"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93210.json"
  },
  "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.",
  "id": "CVE-2026-93210",
  "modified": "2026-09-27T03:30:22.682950860Z",
  "published": "2026-09-24T15:10:33.577Z",
  "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"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "smb: client: harden DFS cache against invalid target hints"
}