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CVE Record

CVE-2021-47410: drm/amdkfd: fix svm_migrate_fini warning

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix svm_migrate_fini warning Device manager releases device-specific resources when a driver disconnects from a device, devm_memunmap_pages and devm_release_mem_region calls in svm_migrate_fini are redundant. It causes below warning trace after patch "drm/amdgpu: Split amdgpu_device_fini into early and late", so remove function svm_migrate_fini. BUG: https://gitlab.freedesktop.org/drm/amd/-/issues/1718 WARNING: CPU: 1 PID: 3646 at drivers/base/devres.c:795 devm_release_action+0x51/0x60 Call Trace: ? memunmap_pages+0x360/0x360 svm_migrate_fini+0x2d/0x60 [amdgpu] kgd2kfd_device_exit+0x23/0xa0 [amdgpu] amdgpu_amdkfd_device_fini_sw+0x1d/0x30 [amdgpu] amdgpu_device_fini_sw+0x45/0x290 [amdgpu] amdgpu_driver_release_kms+0x12/0x30 [amdgpu] drm_dev_release+0x20/0x40 [drm] release_nodes+0x196/0x1e0 device_release_driver_internal+0x104/0x1d0 driver_detach+0x47/0x90 bus_remove_driver+0x7a/0xd0 pci_unregister_driver+0x3d/0x90 amdgpu_exit+0x11/0x20 [amdgpu]

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue concerns AMD GPU driver cleanup during device disconnect. The public description shows a warning trace caused by redundant resource-release calls, not a documented data breach or remote takeover. Business urgency depends on whether affected Linux hosts use AMD GPU/amdgpu components and whether vendor kernel updates are available.

Executive priority

Handle through normal kernel patch management unless AMD GPU workloads are operationally critical. There is no source evidence of active exploitation or a severe impact rating, but affected GPU compute or graphics hosts should be updated during the next approved maintenance window.

Technical view

CVE-2021-47410 is in Linux drm/amdkfd. During amdgpu teardown, svm_migrate_fini redundantly calls devm-managed resource release paths, producing a devres warning after an amdgpu_device_fini split. The described resolution removes svm_migrate_fini because device manager cleanup already releases those resources.

Likely exposure

Exposure is likely limited to Linux systems running affected kernel versions with AMD GPU driver functionality. The bundle lists Linux versions including 3.19, 5.14.11, and 5.15 as affected, but does not provide distro-specific package names or complete version ranges.

Exploitation context

The source bundle does not cite active exploitation, public exploit availability, KEV listing, CVSS, or a CWE. The evidence describes a kernel warning during driver disconnect/teardown rather than an attacker workflow. Treat exploitation status as unconfirmed.

Researcher notes

The evidence is narrow: a Linux kernel fix description and two stable commit references. It supports a resource-management cleanup defect in drm/amdkfd, but not exploitability, privilege impact, confidentiality impact, or distro package status. Avoid overstating risk without vendor advisories or additional kernel analysis.

Mitigation direction

  • Check vendor kernel advisories for CVE-2021-47410 coverage.
  • Prioritize systems using AMD GPUs or amdgpu/AMDKFD features.
  • Update to a kernel containing the referenced stable fixes.
  • For managed fleets, track distro backports rather than upstream version numbers.
  • If no vendor fix is available, monitor for AMD GPU driver teardown warnings.

Validation and detection

  • Inventory Linux kernels and AMD GPU driver usage.
  • Map installed kernel packages to vendor CVE advisories.
  • Confirm whether referenced stable commits are included or backported.
  • Review kernel logs for matching amdgpu teardown warning traces.
  • Document systems where AMD GPU components are absent.
Prepared
Confidence
medium
Sources
4

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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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
3Source 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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4a488a7ad71401169cecee75dc94bcce642e2c53, 4a488a7ad71401169cecee75dc94bcce642e2c53unaffected
LinuxLinux3.19, 0, 5.14.11, 5.15affected
Weakness

CWE details

No CWE listed

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