LiveActive security incident?Get immediate response
CVE Record

CVE-2022-50122: ASoC: mediatek: mt8173-rt5650: Fix refcount leak in mt8173_rt5650_dev_probe

In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8173-rt5650: Fix refcount leak in mt8173_rt5650_dev_probe of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Fix refcount leak in some error paths.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue is a small resource-management bug in a MediaTek audio driver. On some error paths, the driver keeps a device-tree reference longer than it should. The public sources do not provide CVSS, CWE, impact detail, or evidence of active exploitation.

Executive priority

Handle through normal kernel patch management unless affected MediaTek audio platforms are business critical. There is no source-backed active exploitation signal, but incomplete severity data means teams should still verify exposure and apply vendor kernel updates.

Technical view

CVE-2022-50122 fixes a refcount leak in mt8173_rt5650_dev_probe for the ASoC mediatek mt8173-rt5650 driver. of_parse_phandle() increments a node reference, and affected error paths failed to release it with of_node_put(). Stable kernel commits are referenced as fixes.

Likely exposure

Exposure appears limited to Linux kernels that include and use the ASoC mediatek mt8173-rt5650 audio driver. Systems without that driver, hardware path, or affected kernel range are unlikely to be exposed. The bundle lists affected Linux versions but does not provide deployment prevalence.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of public exploitation. The described flaw is a kernel refcount leak in probe error handling, not a documented remote attack path. Treat exploitability as unproven from available evidence.

Researcher notes

The available record supports a narrow root cause: missing of_node_put() after of_parse_phandle() in specific probe error paths. Public metadata lacks CVSS, CWE, detailed impact analysis, and exploitability claims, so conclusions should remain conservative.

Mitigation direction

  • Update affected Linux kernels to versions containing the referenced stable fixes.
  • Check Linux vendor or distribution advisories for packaged kernel availability.
  • Prioritize systems using the mt8173-rt5650 MediaTek ASoC audio driver.
  • Document systems without the affected driver as lower priority.
  • Track future CVE updates because severity metadata is incomplete.

Validation and detection

  • Inventory Linux kernel versions against the affected range in the CVE bundle.
  • Confirm whether mt8173-rt5650 support is built, loaded, or used.
  • Map deployed kernels to the listed stable kernel fix commits.
  • Review vendor kernel changelogs for CVE-2022-50122 or the refcount-leak fix.
  • Record compensating rationale where the relevant MediaTek audio path is absent.
Prepared
Confidence
medium
Sources
10

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.

cve · low confidence lookup

CVE-2022-50122 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
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
9Source 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
LinuxLinux0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0, 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0unaffected
LinuxLinux4.6, 0, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0affected
Weakness

CWE details

No CWE listed

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