CVE-2025-21968 (GCVE-0-2025-21968)
Vulnerability from cvelistv5 – Published: 2025-04-01 15:47 – Updated: 2026-05-11 21:10
VLAI
EPSS
VEX
Title
drm/amd/display: Fix slab-use-after-free on hdcp_work
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix slab-use-after-free on hdcp_work
[Why]
A slab-use-after-free is reported when HDCP is destroyed but the
property_validate_dwork queue is still running.
[How]
Cancel the delayed work when destroying workqueue.
(cherry picked from commit 725a04ba5a95e89c89633d4322430cfbca7ce128)
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 18:15 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 06acfdef370ae018dad9592369e2d2fd9a40c09e
(git)
Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 1397715b011bcdc6ad91b17df7acaee301e89db5 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 4964dbc4191ab436877a5e3ecd9c67a4e50b7c36 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 378b361e2e30e9729f9a7676f7926868d14f4326 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < bac7b8b1a3f1a86eeec85835af106cbdc2b9d9f7 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 93d701064e56788663d7c5918fbe5e060d5df587 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < e65e7bea220c3ce8c4c793b4ba35557f4994ab2b (git) |
guessed | |
| Linux | Linux |
Affected:
5.5
Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.236 , ≤ 5.10.* (semver) Unaffected: 5.15.180 , ≤ 5.15.* (semver) Unaffected: 6.1.132 , ≤ 6.1.* (semver) Unaffected: 6.6.84 , ≤ 6.6.* (semver) Unaffected: 6.12.20 , ≤ 6.12.* (semver) Unaffected: 6.13.8 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
guessed |
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-06-29T20:40:02+00:00",
"cve": "CVE-2025-21968",
"id": "CVE-2025-21968",
"initial_release_date": "2025-04-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/amd/display: Fix slab-use-after-free on hdcp_work",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21968.json",
"version": "3"
},
"vulnrichment": {
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work when destroying workqueue.\\n\\n(cherry picked from commit 725a04ba5a95e89c89633d4322430cfbca7ce128)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.236\", \"versionStartIncluding\": \"5.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.180\", \"versionStartIncluding\": \"5.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.132\", \"versionStartIncluding\": \"5.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.84\", \"versionStartIncluding\": \"5.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.20\", \"versionStartIncluding\": \"5.5\"}, 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"cveMetadata": "{\"cveId\": \"CVE-2025-21968\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T20:16:55.377Z\", \"dateReserved\": \"2024-12-29T08:45:45.796Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-04-01T15:47:02.909Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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