ksmbd: smbd: fix dma_unmap_sg() nents

{
  "id": "46d692ddbcd4e5c96feedd954707d2dfa88c4bbaf0f893ca42030af60d4656df",
  "url": "https://osv.dev/vulnerability/CVE-2026-23093",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ksmbd: smbd: fix dma_unmap_sg() nents",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbd: fix dma_unmap_sg() nents The dma_unmap_sg() functions should be called with the same nents as the dma_map_sg(), not the value the map function returned.",
    "evidence": "osv:CVE-2026-23093",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.199",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.162",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.123",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.69",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23093",
      "aliases": [
        "CVE-2026-23093"
      ],
      "affected": [
        {
          "ranges": [
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              "type": "GIT",
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                  "fixed": "6ececffd3e9fe93a87738625dc0671165d27bf96"
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                {
                  "fixed": "4d1e9a4a450aae47277763562122cc80ed703ab2"
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                {
                  "fixed": "70ba85e439221a5d6dda34a3004db6640f0525e6"
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                {
                  "fixed": "d1943bc9dc9508f5933788a76f8a35d10e43a646"
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                  "fixed": "98e3e2b561bc88f4dd218d1c05890672874692f6"
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23093.json"
          }
        },
        {
          "ranges": [
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              "type": "ECOSYSTEM",
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                  "introduced": "5.15.0"
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                  "introduced": "5.16.0"
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                {
                  "fixed": "6.1.162"
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.2.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23093.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.877673717Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2",
        "https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96",
        "https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6",
        "https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6",
        "https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646",
        "https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23093.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23093",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23093.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23093",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 492216,
  "published_at": "2026-02-04T16:08:16.159+00:00"
}