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CVE Record

CVE-2022-50038: drm/meson: Fix refcount bugs in meson_vpu_has_available_connectors()

In the Linux kernel, the following vulnerability has been resolved: drm/meson: Fix refcount bugs in meson_vpu_has_available_connectors() In this function, there are two refcount leak bugs: (1) when breaking out of for_each_endpoint_of_node(), we need call the of_node_put() for the 'ep'; (2) we should call of_node_put() for the reference returned by of_graph_get_remote_port() when it is not used anymore.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-50038 is a Linux kernel issue in the Meson DRM/VPU display connector logic. The source describes reference-count leaks, which can leave kernel object references unreleased. The provided data does not include a CVSS score, impact rating, or evidence of active exploitation.

Executive priority

Treat as a kernel maintenance item, not an emergency, based on current evidence. Patch through normal kernel update cycles, with priority for devices using the affected Meson display stack.

Technical view

The flaw is in meson_vpu_has_available_connectors(). The fix adds missing of_node_put() calls for endpoint references and for references returned by of_graph_get_remote_port(). The CVE source identifies Linux kernel versions and stable kernel commits, but does not describe attacker prerequisites or a complete impact chain.

Likely exposure

Exposure is most relevant to Linux systems running affected kernels with the Meson DRM/VPU driver path present. Confirm using the exact kernel version, vendor backports, and whether referenced stable fixes are included.

Exploitation context

The provided source bundle marks KEV as false and gives no public exploitation evidence. It also does not describe exploitability, required privileges, or whether the leak can cause denial of service in practice.

Researcher notes

Evidence is limited to the CVE record and kernel stable fixes. The bug is a reference-count leak in device-tree graph handling. No CWE, CVSS, exploitability assessment, or operational impact detail is provided.

Mitigation direction

  • Apply a kernel update containing the referenced stable fix commits.
  • Use distribution or device-vendor kernel advisories for backported fix status.
  • Prioritize systems using the Meson DRM/VPU display driver path.
  • Track this as lower urgency until vendor impact details are available.

Validation and detection

  • Inventory Linux kernel versions across affected systems.
  • Check whether vendor kernels include the listed stable commits.
  • Confirm Meson DRM/VPU driver exposure in relevant device builds.
  • Review kernel logs and stability reports for display-driver anomalies.
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-2022-50038 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
8Source 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
LinuxLinuxbbbe775ec5b5dace43a35886da9924837da09ddd, bbbe775ec5b5dace43a35886da9924837da09ddd, bbbe775ec5b5dace43a35886da9924837da09ddd, bbbe775ec5b5dace43a35886da9924837da09ddd, bbbe775ec5b5dace43a35886da9924837da09ddd, bbbe775ec5b5dace43a35886da9924837da09ddd, bbbe775ec5b5dace43a35886da9924837da09dddunaffected
LinuxLinux4.10, 0, 4.14.291, 4.19.256, 5.4.211, 5.10.138, 5.15.63, 5.19.4, 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.