{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "b5f924ffbfa976e4b97f17e8132c595b97482c2d"
            },
            {
              "fixed": "5a8f82f9c5839389cf4036029dd75a9911049e83"
            },
            {
              "fixed": "04082b1833856cb9ed87e0d3d5f04cbf836cf7da"
            },
            {
              "fixed": "c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f"
            },
            {
              "fixed": "5f270f091256da1338c3631083e15d7f83cc05e1"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.158"
            },
            {
              "fixed": "6.12.112"
            },
            {
              "fixed": "6.18.54"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.54"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98174.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix rlist race and missing initialization\n\nTCP_Server_Info.rlist is allocated via kzalloc which zeros both -\u003enext\nand -\u003eprev to NULL instead of pointing to itself, making list_empty()\nalways return false and list_add() dereference a NULL -\u003eprev pointer.\n\nAlso, cifs_signal_cifsd_for_reconnect() can be called concurrently\nfrom multiple cifsd threads, allowing the same server's rlist node to\nbe added twice into the local list, corrupting it.",
  "id": "CVE-2026-98174",
  "modified": "2026-10-09T02:30:40.804305191Z",
  "published": "2026-10-06T08:44:18.350Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04082b1833856cb9ed87e0d3d5f04cbf836cf7da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a8f82f9c5839389cf4036029dd75a9911049e83"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f270f091256da1338c3631083e15d7f83cc05e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5f924ffbfa976e4b97f17e8132c595b97482c2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98174.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98174"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "smb: client: fix rlist race and missing initialization"
}