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CVE Record

CVE-2022-48844: Bluetooth: hci_core: Fix leaking sent_cmd skb

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix leaking sent_cmd skb sent_cmd memory is not freed before freeing hci_dev causing it to leak it contents.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel Bluetooth memory leak. The kernel failed to free a stored Bluetooth command buffer before releasing the Bluetooth device object. The public data does not provide a severity score, impact beyond memory leakage, or evidence of active exploitation.

Executive priority

Treat as a routine kernel maintenance item unless Bluetooth-enabled Linux assets are highly exposed or custom kernels lag upstream fixes. Prioritize confirmation and patch alignment, not emergency response, because exploitation and severity evidence are not established.

Technical view

The issue is in Linux kernel Bluetooth hci_core. The sent_cmd skb was not freed before hci_dev cleanup, causing its contents to leak. The record references stable kernel commits that resolve the bug, but the bundle does not describe exploitability, privilege requirements, or data sensitivity.

Likely exposure

Exposure is most relevant to Linux systems with affected kernel builds and Bluetooth stack support. The source bundle names Linux 5.15, 5.15.30, 5.16.16, and 5.17 data, but its version formatting is incomplete, so confirm against vendor kernel advisories.

Exploitation context

No CISA KEV listing is provided and no cited source claims active exploitation. The available sources only identify the resolved kernel bug and stable commit references, not public exploit activity or practical attack conditions.

Researcher notes

The record lacks CVSS, CWE, exploitability details, and clear fixed-version semantics. Analysis should focus on kernel provenance, Bluetooth enablement, and whether the stable commits are present in downstream or custom kernel trees.

Mitigation direction

  • Check distribution kernel advisories for CVE-2022-48844 applicability.
  • Update affected Linux kernels to vendor-supported fixed builds.
  • Review the referenced stable kernel commits when maintaining custom kernels.
  • Disable unused Bluetooth support where operationally acceptable.

Validation and detection

  • Inventory Linux kernel versions across Bluetooth-capable systems.
  • Confirm whether vendor advisories map your kernel build to this CVE.
  • Verify custom kernels include the referenced hci_core fix commits.
  • Document systems where Bluetooth is disabled or unavailable.
Prepared
Confidence
medium
Sources
5

Public sources used

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.

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CVE-2022-48844 mapping review

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

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
2ADP providers
4Source links

SSVC decision data

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

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

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux58ce6d5b271ab25fb2056f84a8e5546945eb5fc9, 58ce6d5b271ab25fb2056f84a8e5546945eb5fc9, 58ce6d5b271ab25fb2056f84a8e5546945eb5fc9unaffected
LinuxLinux5.15, 0, 5.15.30, 5.16.16, 5.17affected
Weakness

CWE details

No CWE listed

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