Vulnerability-Lookup

FKIE_CVE-2026-23299

Vulnerability from fkie_nvd - Published: 2026-03-25 11:16 - Updated: 2026-05-29 14:25

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued into sk_error_queue and will stay there until consumed. If userspace never gets to read the timestamps, or if the controller is removed unexpectedly, these SKBs will leak. Fix by adding skb_queue_purge() calls for sk_error_queue in affected bluetooth destructors. RFCOMM does not currently use sk_error_queue.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/21e4271e65094172aadd5beb8caea95dd0fbf6d7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2b6c942a526635f5c61d2f000258e620da32d3a7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3de7c10a950b36affc692d8bd2ac713852580e56	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7B6E9607-896D-4A84-B5CB-3311EB1230BD",
              "versionEndExcluding": "6.18.17",
              "versionStartIncluding": "6.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3",
              "versionEndExcluding": "6.19.7",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: purge error queues in socket destructors\n\nWhen TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued\ninto sk_error_queue and will stay there until consumed. If userspace never\ngets to read the timestamps, or if the controller is removed unexpectedly,\nthese SKBs will leak.\n\nFix by adding skb_queue_purge() calls for sk_error_queue in affected\nbluetooth destructors. RFCOMM does not currently use sk_error_queue."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: purgar colas de error en destructores de sockets\n\nCuando la marca de tiempo TX est\u00e1 habilitada a trav\u00e9s de SO_TIMESTAMPING, los SKB pueden ser encolados en sk_error_queue y permanecer\u00e1n all\u00ed hasta ser consumidos. Si el espacio de usuario nunca llega a leer las marcas de tiempo, o si el controlador es eliminado inesperadamente, estos SKB se filtrar\u00e1n.\n\nSoluci\u00f3n a\u00f1adiendo llamadas a skb_queue_purge() para sk_error_queue en los destructores de bluetooth afectados. RFCOMM no utiliza actualmente sk_error_queue."
    }
  ],
  "id": "CVE-2026-23299",
  "lastModified": "2026-05-29T14:25:27.723",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-25T11:16:25.487",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/21e4271e65094172aadd5beb8caea95dd0fbf6d7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2b6c942a526635f5c61d2f000258e620da32d3a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3de7c10a950b36affc692d8bd2ac713852580e56"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-772"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-23299 (GCVE-0-2026-23299)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-05-11 22:04

Title

Bluetooth: purge error queues in socket destructors

Summary

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2b6c942a526635f5c…
https://git.kernel.org/stable/c/3de7c10a950b36aff…
https://git.kernel.org/stable/c/21e4271e65094172a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 134f4b39df7b77225a80ef585c15d46f964f5e6f , < 2b6c942a526635f5c61d2f000258e620da32d3a7 (git) Affected: 134f4b39df7b77225a80ef585c15d46f964f5e6f , < 3de7c10a950b36affc692d8bd2ac713852580e56 (git) Affected: 134f4b39df7b77225a80ef585c15d46f964f5e6f , < 21e4271e65094172aadd5beb8caea95dd0fbf6d7 (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sock.c",
            "net/bluetooth/iso.c",
            "net/bluetooth/l2cap_sock.c",
            "net/bluetooth/sco.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2b6c942a526635f5c61d2f000258e620da32d3a7",
              "status": "affected",
              "version": "134f4b39df7b77225a80ef585c15d46f964f5e6f",
              "versionType": "git"
            },
            {
              "lessThan": "3de7c10a950b36affc692d8bd2ac713852580e56",
              "status": "affected",
              "version": "134f4b39df7b77225a80ef585c15d46f964f5e6f",
              "versionType": "git"
            },
            {
              "lessThan": "21e4271e65094172aadd5beb8caea95dd0fbf6d7",
              "status": "affected",
              "version": "134f4b39df7b77225a80ef585c15d46f964f5e6f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sock.c",
            "net/bluetooth/iso.c",
            "net/bluetooth/l2cap_sock.c",
            "net/bluetooth/sco.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: purge error queues in socket destructors\n\nWhen TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued\ninto sk_error_queue and will stay there until consumed. If userspace never\ngets to read the timestamps, or if the controller is removed unexpectedly,\nthese SKBs will leak.\n\nFix by adding skb_queue_purge() calls for sk_error_queue in affected\nbluetooth destructors. RFCOMM does not currently use sk_error_queue."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:04:11.865Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2b6c942a526635f5c61d2f000258e620da32d3a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/3de7c10a950b36affc692d8bd2ac713852580e56"
        },
        {
          "url": "https://git.kernel.org/stable/c/21e4271e65094172aadd5beb8caea95dd0fbf6d7"
        }
      ],
      "title": "Bluetooth: purge error queues in socket destructors",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23299",
    "datePublished": "2026-03-25T10:26:55.481Z",
    "dateReserved": "2026-01-13T15:37:45.993Z",
    "dateUpdated": "2026-05-11T22:04:11.865Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23299

CVE-2026-23299 (GCVE-0-2026-23299)

Tags

Sightings

Nomenclature