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GHSA-X652-W4XG-69JH

Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2025-11-03 21:31

Details

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

Bluetooth: MGMT: Fix possible crash on mgmt_index_removed

If mgmt_index_removed is called while there are commands queued on cmd_sync it could lead to crashes like the bellow trace:

0x0000053D: __list_del_entry_valid_or_report+0x98/0xdc 0x0000053D: mgmt_pending_remove+0x18/0x58 [bluetooth] 0x0000053E: mgmt_remove_adv_monitor_complete+0x80/0x108 [bluetooth] 0x0000053E: hci_cmd_sync_work+0xbc/0x164 [bluetooth]

So while handling mgmt_index_removed this attempts to dequeue commands passed as user_data to 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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-49951"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:16Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix possible crash on mgmt_index_removed\n\nIf mgmt_index_removed is called while there are commands queued on\ncmd_sync it could lead to crashes like the bellow trace:\n\n0x0000053D: __list_del_entry_valid_or_report+0x98/0xdc\n0x0000053D: mgmt_pending_remove+0x18/0x58 [bluetooth]\n0x0000053E: mgmt_remove_adv_monitor_complete+0x80/0x108 [bluetooth]\n0x0000053E: hci_cmd_sync_work+0xbc/0x164 [bluetooth]\n\nSo while handling mgmt_index_removed this attempts to dequeue\ncommands passed as user_data to cmd_sync.",
  "id": "GHSA-x652-w4xg-69jh",
  "modified": "2025-11-03T21:31:24Z",
  "published": "2024-10-21T18:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49951"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0cc47233af35fb5f10b5e6a027cb4ccd480caf9a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19b40ca62607cef78369549d1af091f2fd558931"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4883296505aa7e4863c6869b689afb6005633b23"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c3f7943a29145d8a2d8e24893762f7673323eae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f53e1c9c726d83092167f2226f32bd3b73f26c21"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-49951 (GCVE-0-2024-49951)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-08-05 11:40

Title

Bluetooth: MGMT: Fix possible crash on mgmt_index_removed

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix possible crash on mgmt_index_removed If mgmt_index_removed is called while there are commands queued on cmd_sync it could lead to crashes like the bellow trace: 0x0000053D: __list_del_entry_valid_or_report+0x98/0xdc 0x0000053D: mgmt_pending_remove+0x18/0x58 [bluetooth] 0x0000053E: mgmt_remove_adv_monitor_complete+0x80/0x108 [bluetooth] 0x0000053E: hci_cmd_sync_work+0xbc/0x164 [bluetooth] So while handling mgmt_index_removed this attempts to dequeue commands passed as user_data to cmd_sync.

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 2024-10-22 13:36 UTC

Assigner

Linux mitre root Scorecard

References

6 references

URL	Tags
https://git.kernel.org/stable/c/19b40ca62607cef78…
https://git.kernel.org/stable/c/4883296505aa7e486…
https://git.kernel.org/stable/c/0cc47233af35fb5f1…
https://git.kernel.org/stable/c/8c3f7943a29145d8a…
https://git.kernel.org/stable/c/f53e1c9c726d83092…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c , < 19b40ca62607cef78369549d1af091f2fd558931 (git) Affected: 7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c , < 4883296505aa7e4863c6869b689afb6005633b23 (git) Affected: 7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c , < 0cc47233af35fb5f10b5e6a027cb4ccd480caf9a (git) Affected: 7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c , < 8c3f7943a29145d8a2d8e24893762f7673323eae (git) Affected: 7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c , < f53e1c9c726d83092167f2226f32bd3b73f26c21 (git)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.120 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-49951",
                "options": [
                  {
                    "Exploitation": "none"
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:36:23.779720Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:38:49.118Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "dateUpdated": "2025-11-03T20:42:19.292Z",
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        "references": [
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            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
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              "versionType": "semver"
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              "version": "6.11.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix possible crash on mgmt_index_removed\n\nIf mgmt_index_removed is called while there are commands queued on\ncmd_sync it could lead to crashes like the bellow trace:\n\n0x0000053D: __list_del_entry_valid_or_report+0x98/0xdc\n0x0000053D: mgmt_pending_remove+0x18/0x58 [bluetooth]\n0x0000053E: mgmt_remove_adv_monitor_complete+0x80/0x108 [bluetooth]\n0x0000053E: hci_cmd_sync_work+0xbc/0x164 [bluetooth]\n\nSo while handling mgmt_index_removed this attempts to dequeue\ncommands passed as user_data to cmd_sync."
        }
      ],
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            "baseSeverity": "HIGH",
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            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is triggered through the local Bluetooth management socket (AF_BLUETOOTH/BTPROTO_HCI, HCI_CHANNEL_CONTROL) by submitting mgmt commands and then powering off or removing the adapter index; no over-the-air Bluetooth data reaches this path.\nAC:L - The attacker controls both sides of the sequence \u2014 queue any cmd_sync-backed mgmt command (e.g. REMOVE_ADV_MONITOR, ADD_ADV_PATTERNS_MONITOR) and then issue SET_POWERED(off), which executes __mgmt_power_off from inside hci_cmd_sync_work and frees the pending cmd while the worker still holds it in cmd_sync_work_list. The stale entry is then processed deterministically in the same worker loop.\nPR:L - Reaching the mgmt command handlers requires a trusted control socket (CAP_NET_ADMIN), which on real deployments is held by non-root Bluetooth service accounts (bluetoothd, Android\u0027s Bluetooth stack), so a compromised unprivileged service reaches it; the power-off half is additionally reachable by ordinary desktop/session users via rfkill and D-Bus. Consistent with prior kernel.org scoring of the same mgmt_pending UAF class (CVE-2025-38118, CVE-2026-31511).\nUI:N - The full sequence is issued by the attacker\u0027s own process through the mgmt socket; no action by another user or victim is needed.\nS:U - The use-after-free corrupts kernel heap state within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed mgmt_pending_cmd is re-read after being reclaimed, and mgmt_cmd_complete() sends cmd-\u003eparam/cmd-\u003eparam_len from the stale allocation back to the attacker\u0027s socket, disclosing arbitrary reallocated kernel heap contents.\nI:H - mgmt_pending_remove() performs list_del on the freed and attacker-reclaimable object, yielding a controlled kernel write primitive, and sock_put(cmd-\u003esk) decrements a refcount through a stale pointer \u2014 both leveragable for privilege escalation via heap grooming.\nA:H - The reported failure is a kernel crash in __list_del_entry_valid_or_report from mgmt_pending_remove; any unexploited attempt reliably oopses or panics the kernel."
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          "url": "https://git.kernel.org/stable/c/f53e1c9c726d83092167f2226f32bd3b73f26c21"
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      "title": "Bluetooth: MGMT: Fix possible crash on mgmt_index_removed",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49951",
    "datePublished": "2024-10-21T18:02:07.055Z",
    "dateReserved": "2024-10-21T12:17:06.046Z",
    "dateUpdated": "2026-08-05T11:40:38.621Z",
    "state": "PUBLISHED"
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  "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.

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GHSA-X652-W4XG-69JH

CVE-2024-49951 (GCVE-0-2024-49951)

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