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CVE-2024-56604 (GCVE-0-2024-56604)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:51 – Updated: 2026-08-05 11:45
VLAI
Title
Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() bt_sock_alloc() attaches allocated sk object to the provided sock object. If rfcomm_dlc_alloc() fails, we release the sk object, but leave the dangling pointer in the sock object, which may cause use-after-free. Fix this by swapping calls to bt_sock_alloc() and rfcomm_dlc_alloc().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-11 15:42 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ac3eaac4cf142a15fe67be747a682b1416efeb6e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6021ccc2471b7b95e29b7cfc7938e042bf56e281 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 32df687e129ef0f9afcbcc914f7c32deb28fd481 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3945c799f12b8d1f49a3b48369ca494d981ac465 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.66 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ac3eaac4cf142a15fe67be747a682b1416efeb6e"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T08:20:55+00:00",
      "cve": "CVE-2024-56604",
      "id": "CVE-2024-56604",
      "initial_release_date": "2024-12-27T00:00:00+00:00",
      "product_status:fixed": "305",
      "product_status:known_affected": "112",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-56604.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-12T16:56:10Z",
      "cve": "CVE-2024-56604",
      "id": "CVE-2024-56604",
      "initial_release_date": "2025-01-04T00:20:57Z",
      "product_status:known_affected": "324",
      "product_status:known_not_affected": "268",
      "product_status:recommended": "784",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-56604",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-56604.json",
      "version": "73"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2025-11-03T20:50:48.128Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-56604",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-02-11T15:42:12.765631Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-416",
                    "description": "CWE-416 Use After Free",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-02-11T15:42:14.084Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "net/bluetooth/rfcomm/sock.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "ac3eaac4cf142a15fe67be747a682b1416efeb6e",
                  "status": "affected",
                  "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                  "versionType": "git"
                },
                {
                  "lessThan": "6021ccc2471b7b95e29b7cfc7938e042bf56e281",
                  "status": "affected",
                  "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                  "versionType": "git"
                },
                {
                  "lessThan": "32df687e129ef0f9afcbcc914f7c32deb28fd481",
                  "status": "affected",
                  "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                  "versionType": "git"
                },
                {
                  "lessThan": "3945c799f12b8d1f49a3b48369ca494d981ac465",
                  "status": "affected",
                  "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "net/bluetooth/rfcomm/sock.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "2.6.12"
                },
                {
                  "lessThan": "2.6.12",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.120",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.66",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.5",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.13",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.120",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.66",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.5",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()\n\nbt_sock_alloc() attaches allocated sk object to the provided sock object.\nIf rfcomm_dlc_alloc() fails, we release the sk object, but leave the\ndangling pointer in the sock object, which may cause use-after-free.\n\nFix this by swapping calls to bt_sock_alloc() and rfcomm_dlc_alloc()."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-01-05T10:56:11.817Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/ac3eaac4cf142a15fe67be747a682b1416efeb6e"
            },
            {
              "url": "https://git.kernel.org/stable/c/6021ccc2471b7b95e29b7cfc7938e042bf56e281"
            },
            {
              "url": "https://git.kernel.org/stable/c/32df687e129ef0f9afcbcc914f7c32deb28fd481"
            },
            {
              "url": "https://git.kernel.org/stable/c/3945c799f12b8d1f49a3b48369ca494d981ac465"
            }
          ],
          "title": "Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-56604",
        "datePublished": "2024-12-27T14:51:09.618Z",
        "dateReserved": "2024-12-27T14:03:06.012Z",
        "dateUpdated": "2026-01-05T10:56:11.817Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.