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CVE Record

CVE-2023-54075: ASoC: mediatek: common: Fix refcount leak in parse_dai_link_info

In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: common: Fix refcount leak in parse_dai_link_info Add missing of_node_put()s before the returns to balance of_node_get()s and of_node_put()s, which may get unbalanced in case the for loop 'for_each_available_child_of_node' returns early.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE is a Linux kernel bug in Mediatek audio support where the kernel may fail to release internal references during some error paths. The public record does not provide a severity score, exploit evidence, or business-impact detail. Treat it as a patch-management item unless your fleet uses affected Linux kernel builds with Mediatek ASoC support.

Executive priority

Moderate operational priority for affected Linux or embedded fleets; lower priority for unrelated platforms. The urgency is constrained by missing severity, missing CVSS, and no active-exploitation evidence in the supplied sources.

Technical view

The issue is in ASoC Mediatek common parse_dai_link_info. Early returns from for_each_available_child_of_node can leave of_node_get and of_node_put unbalanced, causing a device-tree node reference count leak. The listed stable fixes add missing of_node_put calls before returns.

Likely exposure

Exposure appears limited to Linux systems running kernel versions or commits identified in the CVE record, especially builds including the Mediatek ASoC code path. The affected-version data is sparse, so distribution kernel mapping should be verified directly.

Exploitation context

The bundle says KEV is false and provides no cited evidence of active exploitation, public exploit code, or exploitability conditions. The record describes a refcount leak fix, not a confirmed remote or privilege-escalation attack path.

Researcher notes

Key uncertainty is impact. The sources show a resolved refcount leak in a specific kernel subsystem but do not establish attacker reachability, required privileges, crashability, or affected downstream distributions. Validate exposure through kernel source, config, and vendor advisories.

Mitigation direction

  • Update to a kernel containing the referenced stable fixes.
  • Check your Linux distribution advisory for backported fixes.
  • Prioritize systems using Mediatek audio or SoC kernel support.
  • Reboot systems after kernel update where required.
  • If no package is available, monitor vendor guidance.

Validation and detection

  • Inventory Linux kernel versions across affected device classes.
  • Map distro kernel builds to the referenced stable commits.
  • Check whether Mediatek ASoC support is built or loaded.
  • Confirm fixed kernel packages are installed and booted.
  • Document exceptions awaiting vendor-provided fixes.
Prepared
Confidence
medium
Sources
4

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

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CVE-2023-54075 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
3Source 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
LinuxLinux4302187d955f166c03b4fa7c993b89ffbabfca4e, 4302187d955f166c03b4fa7c993b89ffbabfca4eunaffected
LinuxLinux6.3, 0, 6.3.2, 6.4affected
Weakness

CWE details

No CWE listed

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