GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-38128 (GCVE-0-2025-38128)

Vulnerability from cvelistv5 – Published: 2025-07-03 08:35 – Updated: 2026-05-11 21:21
VLAI
Title
Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands In 'mgmt_hci_cmd_sync()', check whether the size of parameters passed in 'struct mgmt_cp_hci_cmd_sync' matches the total size of the data (i.e. 'sizeof(struct mgmt_cp_hci_cmd_sync)' plus trailing bytes). Otherwise, large invalid 'params_len' will cause 'hci_cmd_sync_alloc()' to do 'skb_put_data()' from an area beyond the one actually passed to 'mgmt_hci_cmd_sync()'.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 827af4787e74e8df9e8e0677a69fbb15e0856d2f , < 9eeafd16d76a7642d12b3442a26c15cd345e12f7 (git)
Affected: 827af4787e74e8df9e8e0677a69fbb15e0856d2f , < 03f1700b9b4d4f2fed3165370f3c23db76553178 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/mgmt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9eeafd16d76a7642d12b3442a26c15cd345e12f7",
              "status": "affected",
              "version": "827af4787e74e8df9e8e0677a69fbb15e0856d2f",
              "versionType": "git"
            },
            {
              "lessThan": "03f1700b9b4d4f2fed3165370f3c23db76553178",
              "status": "affected",
              "version": "827af4787e74e8df9e8e0677a69fbb15e0856d2f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/mgmt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.3",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: reject malformed HCI_CMD_SYNC commands\n\nIn \u0027mgmt_hci_cmd_sync()\u0027, check whether the size of parameters passed\nin \u0027struct mgmt_cp_hci_cmd_sync\u0027 matches the total size of the data\n(i.e. \u0027sizeof(struct mgmt_cp_hci_cmd_sync)\u0027 plus trailing bytes).\nOtherwise, large invalid \u0027params_len\u0027 will cause \u0027hci_cmd_sync_alloc()\u0027\nto do \u0027skb_put_data()\u0027 from an area beyond the one actually passed to\n\u0027mgmt_hci_cmd_sync()\u0027."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:21:48.201Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9eeafd16d76a7642d12b3442a26c15cd345e12f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/03f1700b9b4d4f2fed3165370f3c23db76553178"
        }
      ],
      "title": "Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38128",
    "datePublished": "2025-07-03T08:35:33.089Z",
    "dateReserved": "2025-04-16T04:51:23.986Z",
    "dateUpdated": "2026-05-11T21:21:48.201Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-38128",
      "date": "2026-09-18",
      "epss": "0.0014",
      "percentile": "0.03724"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "net/bluetooth/mgmt.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "9eeafd16d76a7642d12b3442a26c15cd345e12f7",
                    "status": "affected",
                    "version": "827af4787e74e8df9e8e0677a69fbb15e0856d2f",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "03f1700b9b4d4f2fed3165370f3c23db76553178",
                    "status": "affected",
                    "version": "827af4787e74e8df9e8e0677a69fbb15e0856d2f",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "net/bluetooth/mgmt.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.13"
                  },
                  {
                    "lessThan": "6.13",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.15.*",
                    "status": "unaffected",
                    "version": "6.15.3",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.16",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0541C761-BD5E-4C1A-8432-83B375D7EB92",
                    "versionEndExcluding": "6.15.3",
                    "versionStartIncluding": "6.13",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: reject malformed HCI_CMD_SYNC commands\n\nIn \u0027mgmt_hci_cmd_sync()\u0027, check whether the size of parameters passed\nin \u0027struct mgmt_cp_hci_cmd_sync\u0027 matches the total size of the data\n(i.e. \u0027sizeof(struct mgmt_cp_hci_cmd_sync)\u0027 plus trailing bytes).\nOtherwise, large invalid \u0027params_len\u0027 will cause \u0027hci_cmd_sync_alloc()\u0027\nto do \u0027skb_put_data()\u0027 from an area beyond the one actually passed to\n\u0027mgmt_hci_cmd_sync()\u0027."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: MGMT: rechazar comandos HCI_CMD_SYNC malformados En \u0027mgmt_hci_cmd_sync()\u0027, verifique si el tama\u00f1o de los par\u00e1metros pasados en \u0027struct mgmt_cp_hci_cmd_sync\u0027 coincide con el tama\u00f1o total de los datos (es decir, \u0027sizeof(struct mgmt_cp_hci_cmd_sync)\u0027 m\u00e1s los bytes finales). De lo contrario, un \u0027params_len\u0027 grande y no v\u00e1lido har\u00e1 que \u0027hci_cmd_sync_alloc()\u0027 haga \u0027skb_put_data()\u0027 desde un \u00e1rea m\u00e1s all\u00e1 de la que realmente se pas\u00f3 a \u0027mgmt_hci_cmd_sync()\u0027."
          }
        ],
        "id": "CVE-2025-38128",
        "lastModified": "2026-06-17T09:16:06.777",
        "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": "2025-07-03T09:15:27.043",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/03f1700b9b4d4f2fed3165370f3c23db76553178"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9eeafd16d76a7642d12b3442a26c15cd345e12f7"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-08T12:23:15+00:00",
      "cve": "CVE-2025-38128",
      "id": "CVE-2025-38128",
      "initial_release_date": "2025-07-03T00:00:00+00:00",
      "product_status:known_affected": "212",
      "product_status:known_not_affected": "62",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Memory corruption in Bluetooth subsystem via malformed HCI_CMD_SYNC command",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38128.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.