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CVE Record

CVE-2022-48722: net: ieee802154: ca8210: Stop leaking skb's

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: ca8210: Stop leaking skb's Upon error the ieee802154_xmit_complete() helper is not called. Only ieee802154_wake_queue() is called manually. We then leak the skb structure. Free the skb structure upon error before returning.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-48722 is a Linux kernel resource leak in the ca8210 IEEE 802.15.4 networking driver. On certain transmit errors, the kernel failed to free a network buffer. The main business concern is system stability on devices using this driver, not confirmed data theft or remote code execution.

Executive priority

Treat this as a targeted kernel maintenance item. Prioritize affected embedded, IoT, or radio-networked Linux assets, but do not escalate as emergency without evidence of exploitation or broad exposure.

Technical view

The ca8210 driver error path called ieee802154_wake_queue() but skipped ieee802154_xmit_complete(), leaving the skb allocated. The kernel fix frees the skb before returning on error. Public sources provide Linux stable commits, but no CVSS score, CWE, or detailed exploit prerequisites.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions with the ca8210 IEEE 802.15.4 driver present and reachable through relevant radio networking workflows. General servers without this hardware or driver are less likely to be exposed.

Exploitation context

The source bundle does not show CISA KEV listing, public exploitation, or exploit details. The vulnerability is described as an skb memory leak on error handling, which could plausibly affect availability, but operational exploitability is not established by the provided sources.

Researcher notes

Evidence is concise: the vulnerability is a missing skb free on ca8210 transmit error. The provided record lacks CVSS, CWE, triggering conditions, and exploit status. Analysis should stay bounded to driver-level availability risk unless vendor advisories add more detail.

Mitigation direction

  • Update affected Linux kernels to versions containing the referenced stable fixes.
  • Check Linux distribution advisories for backported fixes in supported kernel packages.
  • Prioritize embedded or IoT systems using ca8210 or IEEE 802.15.4 networking.
  • Disable or avoid loading unused ca8210 support where vendor guidance permits.

Validation and detection

  • Inventory systems running Linux kernels in the affected version ranges.
  • Confirm whether ca8210 or IEEE 802.15.4 support is enabled or loaded.
  • Map each system kernel to distribution advisory status or referenced stable commits.
  • Review stability telemetry for memory pressure on relevant embedded devices.
Prepared
Confidence
medium
Sources
9

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

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CVE-2022-48722 mapping review

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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
8Source 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

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxded845a781a578dfb0b5b2c138e5a067aa3b1242, ded845a781a578dfb0b5b2c138e5a067aa3b1242, ded845a781a578dfb0b5b2c138e5a067aa3b1242, ded845a781a578dfb0b5b2c138e5a067aa3b1242, ded845a781a578dfb0b5b2c138e5a067aa3b1242, ded845a781a578dfb0b5b2c138e5a067aa3b1242, ded845a781a578dfb0b5b2c138e5a067aa3b1242unaffected
LinuxLinux4.12, 0, 4.14.265, 4.19.228, 5.4.178, 5.10.99, 5.15.22, 5.16.8, 5.17affected
Weakness

CWE details

No CWE listed

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