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CVE Record

CVE-2021-47550: drm/amd/amdgpu: fix potential memleak

In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu: fix potential memleak In function amdgpu_get_xgmi_hive, when kobject_init_and_add failed There is a potential memleak if not call kobject_put.

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 AMDGPU driver bug that can leak memory when an internal kernel object setup fails. The public record does not provide a severity score, exploit evidence, or business-impact details. Treat it as a kernel hygiene issue for affected Linux systems, especially where AMDGPU support is enabled.

Executive priority

Handle through routine kernel patch management unless affected AMD GPU systems are business-critical or difficult to reboot. There is no source-backed evidence of active exploitation, but kernel memory leaks can affect reliability and should not remain indefinitely unpatched.

Technical view

The issue is in drm/amd/amdgpu, specifically amdgpu_get_xgmi_hive. If kobject_init_and_add fails, the code could miss kobject_put, creating a potential memory leak. The record says the vulnerability is resolved in Linux stable commits, but does not describe privilege requirements, trigger reliability, or impact beyond memory leakage.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions with the AMDGPU driver code present. The bundle names Linux kernel versions including 5.10, 5.10.84, 5.15.7, and 5.16, but downstream package mapping needs vendor confirmation.

Exploitation context

No active exploitation is cited. The CVE is not marked KEV, and the provided sources do not describe public exploit activity, exploitation prerequisites, or weaponized use. Evidence supports only a potential memory leak condition in kernel driver error handling.

Researcher notes

The record is sparse: no CVSS, CWE, exploit notes, or detailed affected-version ranges are provided. Analysis should stay tied to the upstream Linux fix and distribution backports. Validate by code review or vendor package metadata rather than assuming all kernels in a major branch are affected.

Mitigation direction

  • Update affected Linux kernels to builds containing the referenced stable fixes.
  • Check your Linux distribution or appliance vendor advisory for exact fixed package versions.
  • Prioritize systems using AMDGPU functionality or AMD GPU-capable kernel builds.
  • Do not deploy directly from upstream commits without normal vendor validation.

Validation and detection

  • Inventory Linux kernel versions across servers, workstations, and GPU-enabled systems.
  • Identify hosts where AMDGPU driver support is installed or enabled.
  • Map installed kernel packages to vendor-fixed releases or listed stable commits.
  • Confirm the amdgpu_get_xgmi_hive cleanup path includes kobject_put on failure.
Prepared
Confidence
medium
Sources
5

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-2021-47550 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
2ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

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.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd95e8e97e2d522b7ebb1d5a64c01d8de307621dc, d95e8e97e2d522b7ebb1d5a64c01d8de307621dc, d95e8e97e2d522b7ebb1d5a64c01d8de307621dcunaffected
LinuxLinux5.10, 0, 5.10.84, 5.15.7, 5.16affected
Weakness

CWE details

No CWE listed

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