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drm/amd/display: Fix slab-use-after-free on hdcp_work

Type: advisorySources: OSV

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)

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.236, 5.15.180, 6.1.132, 6.12.20, 6.13.8, 6.6.84
CVEs
CVE-2025-21968
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 03:15 UTC · Revision 1

Source evidence

drm/amd/display: Fix slab-use-after-free on hdcp_work

core-osv · Original source

Published 1 Apr 2025, 15:47 UTC

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)

osv:CVE-2025-21968

Kernel

Fixed versions: 5.10.236, 5.15.180, 6.1.132, 6.6.84, 6.12.20, 6.13.8

Complete source record
{
  "id": "f9ea0dee7a9fdfde22243f0d70a44ca09474e3ee608d3912aa1e450021384969",
  "url": "https://osv.dev/vulnerability/CVE-2025-21968",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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)",
    "evidence": "osv:CVE-2025-21968",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.236",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.180",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.132",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.84",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.20",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-21968",
      "aliases": [
        "CVE-2025-21968"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
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              "type": "GIT",
              "events": [
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                {
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                {
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                },
                {
                  "fixed": "93d701064e56788663d7c5918fbe5e060d5df587"
                },
                {
                  "fixed": "e65e7bea220c3ce8c4c793b4ba35557f4994ab2b"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21968.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.5.0"
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            },
            {
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                  "introduced": "5.11.0"
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            {
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              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.132"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.84"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.20"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.13.8"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21968.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.212429847Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/06acfdef370ae018dad9592369e2d2fd9a40c09e",
        "https://git.kernel.org/stable/c/1397715b011bcdc6ad91b17df7acaee301e89db5",
        "https://git.kernel.org/stable/c/378b361e2e30e9729f9a7676f7926868d14f4326",
        "https://git.kernel.org/stable/c/4964dbc4191ab436877a5e3ecd9c67a4e50b7c36",
        "https://git.kernel.org/stable/c/93d701064e56788663d7c5918fbe5e060d5df587",
        "https://git.kernel.org/stable/c/bac7b8b1a3f1a86eeec85835af106cbdc2b9d9f7",
        "https://git.kernel.org/stable/c/e65e7bea220c3ce8c4c793b4ba35557f4994ab2b",
        "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html",
        "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21968.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-21968",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21968.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-21968",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509761,
  "published_at": "2025-04-01T15:47:02.909+00:00"
}