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CVE Record

CVE-2022-49966: drm/amd/pm: add missing ->fini_microcode interface for Sienna Cichlid

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: add missing ->fini_microcode interface for Sienna Cichlid To avoid any potential memory leak.

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 covers a Linux kernel AMD graphics power-management cleanup issue. A missing microcode finalization interface for Sienna Cichlid could cause a potential memory leak. The public record does not provide CVSS, confirmed impact beyond leakage risk, or evidence of active exploitation.

Executive priority

Treat as routine kernel hygiene unless your estate has affected AMDGPU systems or vendor advisories raise severity. There is no sourced evidence here of exploitation or urgent internet-scale abuse, but kernel memory-management flaws should still be closed through standard patch cycles.

Technical view

The Linux kernel AMD DRM power-management code lacked a ->fini_microcode interface for Sienna Cichlid. Upstream stable commits resolve the issue to avoid a potential memory leak. The CVE record lists affected Linux kernel versions but does not describe privilege requirements, trigger conditions, or security boundary impact.

Likely exposure

Exposure appears limited to Linux kernels containing the affected AMD DRM/PM Sienna Cichlid code path. Organizations should prioritize systems with AMDGPU hardware and kernel versions identified in the CVE record, while confirming exact package status with their Linux distributor.

Exploitation context

The provided sources do not show KEV listing, active exploitation, public exploit availability, or weaponized use. Because the record only states a potential memory leak, operational risk depends on whether the affected driver path is present and reachable in deployed systems.

Researcher notes

The available record is sparse: no CVSS, CWE, exploitability detail, or trigger path is provided. Analysis should focus on commit diff review, vendor backport mapping, and whether the affected AMDGPU code path is compiled and used in target kernels.

Mitigation direction

  • Inventory Linux hosts with AMDGPU hardware and affected kernel versions.
  • Apply distributor kernel updates that include the referenced stable fixes.
  • If updates are unavailable, consult vendor guidance for supported mitigations.
  • Track kernel advisory updates for clarified severity or affected-version corrections.

Validation and detection

  • Check running kernel versions against the CVE affected-version data.
  • Confirm whether AMD DRM/PM Sienna Cichlid support is present on the host.
  • Verify installed kernel packages include the referenced upstream stable commits.
  • Monitor vendor advisories for backport identifiers and package-specific fixed versions.
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-2022-49966 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
LinuxLinuxb455159c053130d0658e9e7f8cb61e9bf6603f22, b455159c053130d0658e9e7f8cb61e9bf6603f22, b455159c053130d0658e9e7f8cb61e9bf6603f22, b455159c053130d0658e9e7f8cb61e9bf6603f22unaffected
LinuxLinux5.9, 0, 5.10.141, 5.15.65, 5.19.7, 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.