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CVE Record

CVE-2022-50111: ASoC: mt6359: Fix refcount leak bug

In the Linux kernel, the following vulnerability has been resolved: ASoC: mt6359: Fix refcount leak bug In mt6359_parse_dt() and mt6359_accdet_parse_dt(), we should call of_node_put() for the reference returned by of_get_child_by_name() which has increased the refcount.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-50111 is a Linux kernel bug in the MediaTek mt6359 audio driver path. The code failed to release device-tree node references after lookup, creating a reference-count leak. Public sources do not state data theft, remote compromise, or active exploitation.

Executive priority

Treat this as routine kernel maintenance unless vendor advisories add impact or exploitation evidence. The available record shows a corrected kernel resource-management bug with unknown severity, no KEV listing, and no sourced active exploitation.

Technical view

The issue is in mt6359_parse_dt() and mt6359_accdet_parse_dt(). of_get_child_by_name() increments a device-tree node reference, but the affected code did not call of_node_put(). Stable Linux commits add the missing release calls. No CVSS, CWE, or exploit details are provided.

Likely exposure

Exposure is likely limited to Linux systems running affected kernels with the mt6359 ASoC driver code present or used. The source bundle lists Linux 5.10-era affected history and fixes in stable kernel commits, but does not identify distributions, appliances, or configurations.

Exploitation context

The CVE record is not marked KEV, and the provided sources contain no evidence of active exploitation or public weaponization. The described flaw is a kernel reference-count leak, but the sources do not define a practical attack path or security impact.

Researcher notes

Useful review points are the mt6359_parse_dt() and mt6359_accdet_parse_dt() paths and whether of_get_child_by_name() references are paired with of_node_put(). Evidence is limited to the CVE record and Linux stable commit references.

Mitigation direction

  • Update to a vendor kernel containing the referenced stable fixes.
  • Check Linux distribution advisories for backported fixes.
  • Prioritize systems using MediaTek mt6359 audio hardware or related kernels.
  • If patch status is unclear, request vendor guidance before deployment decisions.

Validation and detection

  • Inventory kernel versions across Linux assets.
  • Identify systems with mt6359 ASoC driver support enabled or loaded.
  • Confirm whether vendor kernel builds include the referenced fix commits.
  • Review kernel or distribution changelogs for CVE-2022-50111 backports.
Prepared
Confidence
medium
Sources
6

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-2022-50111 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
0ADP providers
5Source links

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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux6835302853169441069e11bc4642300c22009c2e, 6835302853169441069e11bc4642300c22009c2e, 6835302853169441069e11bc4642300c22009c2e, 6835302853169441069e11bc4642300c22009c2eunaffected
LinuxLinux5.10, 0, 5.15.61, 5.18.18, 5.19.2, 6.0affected
Weakness

CWE details

No CWE listed

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