CVE-2026-98162 (GCVE-0-2026-98162)
Vulnerability from cvelistv5
Published
2026-09-25 13:06
Modified
2026-10-21 12:54
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix tree connection leak in smb2_tree_connect() See the procedure below: smb2_tree_connect ksmbd_tree_conn_connect xa_store(&sess->tree_conns, tree_conn->id, tree_conn) ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS) ksmbd_share_tree_conn_inc(sc) ksmbd_iov_pin_rsp // fail status.ret = KSMBD_TREE_CONN_STATUS_NOMEM // do not disconnect tree_conn Disconnect the new tree connection if ksmbd_iov_pin_rsp() fails.
References
Impacted products
Vendor Product Version
Linux Linux Version: e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version: e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version: e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version: e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d
Version: f2283680a80571ca82d710bc6ecd8f8beac67d63
Version: 9f297df20d93411c0b4ddad7f88ba04a7cd36e77
Version: 5.15.145   ≤
Version: 6.1.71   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/smb2pdu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fa0c45986fc60b3edfb35879f2fb0eacc0e49e98",
              "status": "affected",
              "version": "e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d",
              "versionType": "git"
            },
            {
              "lessThan": "fea9c705bbc618ba6426424c9f8330555820c9ec",
              "status": "affected",
              "version": "e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d",
              "versionType": "git"
            },
            {
              "lessThan": "a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc",
              "status": "affected",
              "version": "e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d",
              "versionType": "git"
            },
            {
              "lessThan": "39f2032096715daae5f6fd0f587ca7a474b019df",
              "status": "affected",
              "version": "e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f2283680a80571ca82d710bc6ecd8f8beac67d63",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9f297df20d93411c0b4ddad7f88ba04a7cd36e77",
              "versionType": "git"
            },
            {
              "lessThan": "5.16",
              "status": "affected",
              "version": "5.15.145",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2",
              "status": "affected",
              "version": "6.1.71",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/smb2pdu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.57",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.15.145",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.1.71",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix tree connection leak in smb2_tree_connect()\n\nSee the procedure below:\n\n  smb2_tree_connect\n    ksmbd_tree_conn_connect\n      xa_store(\u0026sess-\u003etree_conns, tree_conn-\u003eid, tree_conn)\n      ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS)\n      ksmbd_share_tree_conn_inc(sc)\n    ksmbd_iov_pin_rsp // fail\n    status.ret = KSMBD_TREE_CONN_STATUS_NOMEM\n    // do not disconnect tree_conn\n\nDisconnect the new tree connection if ksmbd_iov_pin_rsp() fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:54:46.112Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fa0c45986fc60b3edfb35879f2fb0eacc0e49e98"
        },
        {
          "url": "https://git.kernel.org/stable/c/fea9c705bbc618ba6426424c9f8330555820c9ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df"
        }
      ],
      "title": "smb/server: fix tree connection leak in smb2_tree_connect()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98162",
    "datePublished": "2026-09-25T13:06:51.778Z",
    "dateReserved": "2026-09-25T10:25:14.321Z",
    "dateUpdated": "2026-10-21T12:54:46.112Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.