Vulnerability-Lookup

GHSA-QM69-CR5H-7X64

Vulnerability from github – Published: 2024-05-23 09:30 – Updated: 2025-01-07 00:31

Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: msft: fix slab-use-after-free in msft_do_close()

Tying the msft->data lifetime to hdev by freeing it in hci_release_dev() to fix the following case:

[use] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- passed. return; mutex_lock(&msft->filter_lock); ...(4) <- used after freed.

[free] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) kfree(msft); ...(3) <- msft is freed.

================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Read of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-36012"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-23T07:15:08Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: msft: fix slab-use-after-free in msft_do_close()\n\nTying the msft-\u003edata lifetime to hdev by freeing it in\nhci_release_dev() to fix the following case:\n\n[use]\nmsft_do_close()\n  msft = hdev-\u003emsft_data;\n  if (!msft)                      ...(1) \u003c- passed.\n    return;\n  mutex_lock(\u0026msft-\u003efilter_lock); ...(4) \u003c- used after freed.\n\n[free]\nmsft_unregister()\n  msft = hdev-\u003emsft_data;\n  hdev-\u003emsft_data = NULL;         ...(2)\n  kfree(msft);                    ...(3) \u003c- msft is freed.\n\n==================================================================\nBUG: KASAN: slab-use-after-free in __mutex_lock_common\nkernel/locking/mutex.c:587 [inline]\nBUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30\nkernel/locking/mutex.c:752\nRead of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309",
  "id": "GHSA-qm69-cr5h-7x64",
  "modified": "2025-01-07T00:31:38Z",
  "published": "2024-05-23T09:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36012"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-36012 (GCVE-0-2024-36012)

Vulnerability from cvelistv5 – Published: 2024-05-23 07:03 – Updated: 2026-08-05 11:31

Title

Bluetooth: msft: fix slab-use-after-free in msft_do_close()

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: msft: fix slab-use-after-free in msft_do_close() Tying the msft->data lifetime to hdev by freeing it in hci_release_dev() to fix the following case: [use] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- passed. return; mutex_lock(&msft->filter_lock); ...(4) <- used after freed. [free] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) kfree(msft); ...(3) <- msft is freed. ================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Read of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309

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: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-10 18:54 UTC

Assigner

Linux mitre root Scorecard

References

4 references

URL	Tags
https://git.kernel.org/stable/c/e3880b531b68f98d3…
https://git.kernel.org/stable/c/a85a60e62355e3bf4…
https://git.kernel.org/stable/c/4f1de02de07748da8…
https://git.kernel.org/stable/c/10f9f426ac6e752c8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 , < e3880b531b68f98d3941d83f2f6dd11cf4fd6b76 (git) Affected: bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 , < a85a60e62355e3bf4802dead7938966824b23940 (git) Affected: bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 , < 4f1de02de07748da80a8178879bc7a1df37fdf56 (git) Affected: bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 , < 10f9f426ac6e752c8d87bf4346930ba347aaabac (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 6.1.91 , ≤ 6.1.* (semver) Unaffected: 6.6.31 , ≤ 6.6.* (semver) Unaffected: 6.8.10 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-36012",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-10T18:54:16.912662Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-10T18:54:24.668Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:30:12.508Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_core.c",
            "net/bluetooth/msft.c",
            "net/bluetooth/msft.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e3880b531b68f98d3941d83f2f6dd11cf4fd6b76",
              "status": "affected",
              "version": "bf6a4e30ffbd9e9ef8934582feb937f6532f8b68",
              "versionType": "git"
            },
            {
              "lessThan": "a85a60e62355e3bf4802dead7938966824b23940",
              "status": "affected",
              "version": "bf6a4e30ffbd9e9ef8934582feb937f6532f8b68",
              "versionType": "git"
            },
            {
              "lessThan": "4f1de02de07748da80a8178879bc7a1df37fdf56",
              "status": "affected",
              "version": "bf6a4e30ffbd9e9ef8934582feb937f6532f8b68",
              "versionType": "git"
            },
            {
              "lessThan": "10f9f426ac6e752c8d87bf4346930ba347aaabac",
              "status": "affected",
              "version": "bf6a4e30ffbd9e9ef8934582feb937f6532f8b68",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_core.c",
            "net/bluetooth/msft.c",
            "net/bluetooth/msft.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.31",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.91",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.31",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.10",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: msft: fix slab-use-after-free in msft_do_close()\n\nTying the msft-\u003edata lifetime to hdev by freeing it in\nhci_release_dev() to fix the following case:\n\n[use]\nmsft_do_close()\n  msft = hdev-\u003emsft_data;\n  if (!msft)                      ...(1) \u003c- passed.\n    return;\n  mutex_lock(\u0026msft-\u003efilter_lock); ...(4) \u003c- used after freed.\n\n[free]\nmsft_unregister()\n  msft = hdev-\u003emsft_data;\n  hdev-\u003emsft_data = NULL;         ...(2)\n  kfree(msft);                    ...(3) \u003c- msft is freed.\n\n==================================================================\nBUG: KASAN: slab-use-after-free in __mutex_lock_common\nkernel/locking/mutex.c:587 [inline]\nBUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30\nkernel/locking/mutex.c:752\nRead of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Triggering requires local operations on the HCI transport and adapter power state (device create/teardown plus a concurrent close), not any over-the-air Bluetooth frame or network packet. The vulnerable `msft_do_close()` path is only reachable through local device-lifecycle operations.\nAC:L - The attacker controls both sides of the race \u2014 it creates the HCI device, arms the close path (the 2-second `power_off` auto-off delayed work, or an injected HCI Hardware Error that queues `error_reset`), then tears the transport down to run `msft_unregister()` concurrently. The window is wide (no shared lock between the free and the use) and the attempt is infinitely retryable.\nPR:L - An unprivileged local user reaching the Bluetooth HCI device-management interfaces can drive both the adapter power-down path and the transport teardown that frees `msft_data`; no real root in the initial namespace is required to win this race. This matches the privilege level assigned to the equivalent HCI teardown use-after-frees (CVE-2024-53208, CVE-2024-58013, CVE-2024-58241).\nUI:N - The race is driven entirely by the attacker\u0027s own sequence of device-lifecycle and power-state operations. No victim action or interaction is needed at any point.\nS:U - The freed object, the corrupted heap, and the resulting compromise all reside within the kernel\u0027s own security authority. There is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - After the freed `msft_data` slab is reallocated with sprayed data, `msft_do_close()` walks `msft-\u003ehandle_map` and reads `handle_data-\u003emgmt_handle` from attacker-controlled memory and feeds it to `idr_find()`, yielding an arbitrary kernel read primitive. Any use-after-free of this shape enables disclosure of arbitrary kernel memory.\nI:H - The same list walks perform `list_del()` on attacker-controlled `list_head` pointers \u2014 an arbitrary write of pointer values to attacker-chosen kernel addresses \u2014 followed by `kfree()` of an attacker-chosen pointer, and `mutex_lock()` on a corrupted `filter_lock`. These are classic primitives for control-flow hijacking and local privilege escalation.\nA:H - Even without successful exploitation, the slab-use-after-free reliably corrupts kernel state and causes an oops or panic, as demonstrated by the KASAN report in `__mutex_lock` from `kworker/u5:2`. This is a complete denial of service that the attacker can trigger at will."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:31:34.945Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76"
        },
        {
          "url": "https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56"
        },
        {
          "url": "https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac"
        }
      ],
      "title": "Bluetooth: msft: fix slab-use-after-free in msft_do_close()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-36012",
    "datePublished": "2024-05-23T07:03:06.904Z",
    "dateReserved": "2024-05-17T13:50:33.153Z",
    "dateUpdated": "2026-08-05T11:31:34.945Z",
    "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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

GHSA-QM69-CR5H-7X64

CVE-2024-36012 (GCVE-0-2024-36012)

Tags

Sightings

Nomenclature

Related by attack behaviour