CVE-2021-47410

Service interruption via redundant GPU resource cleanup

Published May 21, 2024 · Updated Aug 11, 2026

Resource-release error in Linux 3.19 through 5.14.10 allows local users to interrupt service during AMD GPU driver teardown. The svm_migrate_fini path redundantly releases devm-managed memory mappings and regions that the device manager already frees when the driver disconnects, reaching devm_release_action after the resource was released. The flaw requires the amdgpu KFD/SVM path and driver teardown; it emits a kernel warning and causes a kernel panic when panic_on_warn is enabled.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-release error in Linux 3.19 through 5.14.10 allows local users to interrupt service during AMD GPU driver teardown. The svm_migrate_fini path redundantly releases devm-managed memory mappings and regions that the device manager already frees when the driver disconnects, reaching devm_release_action after the resource was released. The flaw requires the amdgpu KFD/SVM path and driver teardown; it emits a kernel warning and causes a kernel panic when panic_on_warn is enabled.

The record

CVE
CVE-2021-47410
Published
May 21, 2024
Updated
Aug 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.14
  2. Affected versionversion=814ab9930cfd709768439799eae3c7ef0a658b54 <197ae17722e989942b36e33e044787877f158574
  3. Affected versionversion=814ab9930cfd709768439799eae3c7ef0a658b54 <ac7d732b24f4061f8a732ada49b054ab38c63e15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=814ab9930cfd709768439799eae3c7ef0a658b54 <197ae17722e989942b36e33e044787877f158574; version=814ab9930cfd709768439799eae3c7ef0a658b54 <ac7d732b24f4061f8a732ada49b054ab38c63e15

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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