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CVE Record

CVE-2022-49213: ath10k: Fix error handling in ath10k_setup_msa_resources

In the Linux kernel, the following vulnerability has been resolved: ath10k: Fix error handling in ath10k_setup_msa_resources The device_node pointer is returned by of_parse_phandle() with refcount incremented. We should use of_node_put() on it when done. This function only calls of_node_put() in the regular path. And it will cause refcount leak in error path.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-49213 is a Linux kernel issue in the ath10k wireless driver. A reference-count leak occurs on an error path, which can affect system availability. The CVSS score is 5.5 and requires local, low-privileged access. There is no provided evidence of active exploitation or KEV listing.

Executive priority

Treat as a routine kernel availability fix, not an emergency. Prioritize patching internet-facing or operationally critical Linux systems only if they use ath10k or affected kernel builds. Bundle remediation with normal kernel maintenance unless vendor guidance raises urgency.

Technical view

The flaw is in ath10k_setup_msa_resources. of_parse_phandle() increments a device_node reference, but error handling failed to call of_node_put(), causing a refcount leak. The CVSS vector is AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. Kernel stable commit references are provided as fixes.

Likely exposure

Exposure is most likely on Linux systems using affected kernels with the ath10k driver or relevant hardware/support enabled. The source bundle lists Linux kernel versions and stable commit references, but affected-version boundaries are not fully clear from the provided data.

Exploitation context

The vulnerability requires local access with low privileges and does not require user interaction. Impact is availability only, according to the CVSS vector. No source in the bundle reports public exploitation, and the CVE is not marked as CISA KEV.

Researcher notes

The public record describes a refcount leak in an ath10k error path, fixed by adding proper of_node_put() handling. Evidence is limited to the CVE record and kernel stable references. No exploit details, CWE mapping, or exploitation reports are provided in the bundle.

Mitigation direction

  • Apply vendor or distribution kernel updates containing the referenced stable fixes.
  • Prioritize systems using ath10k-supported wireless hardware or loading the ath10k driver.
  • If ath10k is not required, consult vendor guidance before disabling related support.
  • Track Linux stable and distribution advisories for backported fixes.

Validation and detection

  • Inventory Linux kernel versions across affected fleets.
  • Check whether ath10k modules are present or loaded.
  • Confirm installed kernels include the referenced stable fix commits or vendor backports.
  • Review distribution security advisories for CVE-2022-49213 coverage.
  • Validate remediation in staging before broad kernel rollout.
Prepared
Confidence
medium
Sources
7

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-2022-49213 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
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

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

1CVSS vectors
3Timeline events
1ADP providers
6Source links

SSVC decision data

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

CVSS vector scores

1 official score

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
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

5.5Medium
CVSS 3.1 vector shape for CVE-2022-49213Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux727fec790ead3d75e2735f66209949c2163523ea, 727fec790ead3d75e2735f66209949c2163523ea, 727fec790ead3d75e2735f66209949c2163523ea, 727fec790ead3d75e2735f66209949c2163523ea, 727fec790ead3d75e2735f66209949c2163523eaunaffected
LinuxLinux5.8, 0, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18affected
Weakness

CWE details

No CWE listed

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