net/sched: fix use-after-free in taprio_dev_notifier

{
  "id": "358a938c2a48e7f47fa94ca8d64d62bbb78c392a39fe99445fb06ebc3e175518",
  "url": "https://osv.dev/vulnerability/CVE-2025-38087",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net/sched: fix use-after-free in taprio_dev_notifier",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in taprio_dev_notifier Since taprio’s taprio_dev_notifier() isn’t protected by an RCU read-side critical section, a race with advance_sched() can lead to a use-after-free. Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.",
    "evidence": "osv:CVE-2025-38087",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.95",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.35",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-38087",
      "aliases": [
        "CVE-2025-38087"
      ],
      "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": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "fixed": "8c5713ce1ced75f9e9ed5c642ea3d2ba06ead69c"
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                {
                  "fixed": "8a008c89e5e5c5332e4c0a33d707db9ddd529f8a"
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                {
                  "fixed": "b1547d28ba468bc3b88764efd13e4319bab63be8"
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                {
                  "fixed": "b160766e26d4e2e2d6fe2294e0b02f92baefcec5"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38087.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.3.0"
                },
                {
                  "fixed": "6.6.95"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.35"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38087.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.310592831Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/8a008c89e5e5c5332e4c0a33d707db9ddd529f8a",
        "https://git.kernel.org/stable/c/8c5713ce1ced75f9e9ed5c642ea3d2ba06ead69c",
        "https://git.kernel.org/stable/c/b1547d28ba468bc3b88764efd13e4319bab63be8",
        "https://git.kernel.org/stable/c/b160766e26d4e2e2d6fe2294e0b02f92baefcec5",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38087.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38087",
        "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/2025/38xxx/CVE-2025-38087.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38087",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504603,
  "published_at": "2025-06-30T07:29:43.325+00:00"
}