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CVE Record

CVE-2024-53207: Bluetooth: MGMT: Fix possible deadlocks

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix possible deadlocks This fixes possible deadlocks like the following caused by hci_cmd_sync_dequeue causing the destroy function to run: INFO: task kworker/u19:0:143 blocked for more than 120 seconds. Tainted: G W O 6.8.0-2024-03-19-intel-next-iLS-24ww14 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u19:0 state:D stack:0 pid:143 tgid:143 ppid:2 flags:0x00004000 Workqueue: hci0 hci_cmd_sync_work [bluetooth] Call Trace: <TASK> __schedule+0x374/0xaf0 schedule+0x3c/0xf0 schedule_preempt_disabled+0x1c/0x30 __mutex_lock.constprop.0+0x3ef/0x7a0 __mutex_lock_slowpath+0x13/0x20 mutex_lock+0x3c/0x50 mgmt_set_connectable_complete+0xa4/0x150 [bluetooth] ? kfree+0x211/0x2a0 hci_cmd_sync_dequeue+0xae/0x130 [bluetooth] ? __pfx_cmd_complete_rsp+0x10/0x10 [bluetooth] cmd_complete_rsp+0x26/0x80 [bluetooth] mgmt_pending_foreach+0x4d/0x70 [bluetooth] __mgmt_power_off+0x8d/0x180 [bluetooth] ? _raw_spin_unlock_irq+0x23/0x40 hci_dev_close_sync+0x445/0x5b0 [bluetooth] hci_set_powered_sync+0x149/0x250 [bluetooth] set_powered_sync+0x24/0x60 [bluetooth] hci_cmd_sync_work+0x90/0x150 [bluetooth] process_one_work+0x13e/0x300 worker_thread+0x2f7/0x420 ? __pfx_worker_thread+0x10/0x10 kthread+0x107/0x140 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x3d/0x60 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 </TASK>

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A flaw in Linux Bluetooth management can deadlock a kernel worker during Bluetooth command cleanup, potentially disrupting Bluetooth or system availability. The supplied record rates it high at CVSS 7.8. However, the technical evidence demonstrates a hang; it does not establish data theft, code execution, or confirmed compromise.

Executive priority

Treat this as a high-priority availability issue for Bluetooth-enabled Linux endpoints, especially shared or availability-critical systems. Patch through supported distribution channels promptly. Current sources do not justify emergency compromise-response actions solely for this CVE because active exploitation is not established.

Technical view

During Bluetooth MGMT power-off and pending-command completion, hci_cmd_sync_dequeue can invoke a destroy callback that attempts mutex acquisition and blocks the worker. The issue is classified as CWE-667, improper locking. Referenced Linux stable commits resolve the deadlock behavior.

Likely exposure

Potential exposure is limited to Linux systems running affected kernel code and using the Bluetooth subsystem. The supplied version data mixes release numbers and commit identifiers, making reliable distribution-level mapping difficult. Confirm exposure against the installed distribution's kernel package and advisory rather than relying on upstream version numbers alone.

Exploitation context

The bundle marks KEV as false, and no cited source reports active exploitation or a public exploit. CVSS describes a local, low-privilege vector without user interaction, but the cited technical evidence does not confirm an attacker-controlled trigger.

Researcher notes

The supplied trace comes from a 6.8 Intel development kernel and illustrates the deadlock, not a formal affected-version boundary. Multiple stable commit references indicate branch-specific fixes. The CVSS vector claims high confidentiality, integrity, and availability impact, while the narrative directly substantiates only deadlock-related availability impact.

Mitigation direction

  • Apply a vendor-supported kernel update containing the CVE fix or an equivalent backport.
  • If no update is available, obtain distribution guidance before selecting compensating controls.
  • Consider disabling unused Bluetooth functionality where operationally acceptable and approved.
  • Monitor affected systems for Bluetooth worker hangs until remediation is complete.

Validation and detection

  • Inventory running kernel packages and map each build to its distribution's advisory status.
  • Identify candidate systems where Bluetooth hardware or the Bluetooth kernel subsystem is active.
  • Confirm the installed kernel includes a referenced stable fix or documented vendor backport.
  • Review logs for hung tasks involving hci_cmd_sync_work or mgmt_set_connectable_complete.
  • After updating, confirm normal Bluetooth power transitions complete without blocked workers.
Prepared
Confidence
medium
Sources
8

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-667: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-53207 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
3Timeline events
2ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-53207Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
CVECVE Program Container
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux19b40ca62607cef78369549d1af091f2fd558931, 4883296505aa7e4863c6869b689afb6005633b23, 8c3f7943a29145d8a2d8e24893762f7673323eae, f53e1c9c726d83092167f2226f32bd3b73f26c21, f53e1c9c726d83092167f2226f32bd3b73f26c21, 0cc47233af35fb5f10b5e6a027cb4ccd480caf9a, 6.6.55, 6.11.3, 6.10.14unaffected
LinuxLinux6.12, 0, 6.6.64, 6.11.11, 6.12.2, 6.13affected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-667 · source CWE mapping

Improper Locking

Improper Locking represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.