CVE-2024-27021 (GCVE-0-2024-27021)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:30 – Updated: 2026-05-11 20:08
VLAI
Title
r8169: fix LED-related deadlock on module removal
Summary
In the Linux kernel, the following vulnerability has been resolved: r8169: fix LED-related deadlock on module removal Binding devm_led_classdev_register() to the netdev is problematic because on module removal we get a RTNL-related deadlock. Fix this by avoiding the device-managed LED functions. Note: We can safely call led_classdev_unregister() for a LED even if registering it failed, because led_classdev_unregister() detects this and is a no-op in this case.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-09 18:39 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 18764b883e157e28126b54e7d4ba9dd487d5bf54 , < 53d986f39acd8ea11c9e460732bfa5add66360d9 (git)
Affected: 18764b883e157e28126b54e7d4ba9dd487d5bf54 , < 19fa4f2a85d777a8052e869c1b892a2f7556569d (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.8.8 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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                "lang": "en",
                "value": "CWE-667"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T10:18:43+00:00",
      "cve": "CVE-2024-27021",
      "id": "CVE-2024-27021",
      "initial_release_date": "2024-05-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: r8169: fix LED-related deadlock on module removal",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-27021.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-30T02:41:48Z",
      "cve": "CVE-2024-27021",
      "id": "CVE-2024-27021",
      "initial_release_date": "2024-05-03T02:09:39Z",
      "product_status:known_not_affected": "385",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-27021",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-27021.json",
      "version": "19"
    },
    "vulnrichment": {
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              "dateUpdated": "2024-08-02T00:21:05.941Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "references": [
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                "url": "https://git.kernel.org/stable/c/53d986f39acd8ea11c9e460732bfa5add66360d9"
              },
              {
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                "url": "https://git.kernel.org/stable/c/19fa4f2a85d777a8052e869c1b892a2f7556569d"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-27021",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-05-09T18:39:07.447646Z",
                    "version": "2.0.3"
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              "product": "Linux",
              "programFiles": [
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                "drivers/net/ethernet/realtek/r8169_leds.c",
                "drivers/net/ethernet/realtek/r8169_main.c"
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versions": [
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                  "version": "6.8"
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                  "version": "0",
                  "versionType": "semver"
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                {
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                  "version": "6.8.8",
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                  ],
                  "negate": false,
                  "operator": "OR"
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          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nr8169: fix LED-related deadlock on module removal\n\nBinding devm_led_classdev_register() to the netdev is problematic\nbecause on module removal we get a RTNL-related deadlock. Fix this\nby avoiding the device-managed LED functions.\n\nNote: We can safely call led_classdev_unregister() for a LED even\nif registering it failed, because led_classdev_unregister() detects\nthis and is a no-op in this case."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:02:27.050Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          ],
          "title": "r8169: fix LED-related deadlock on module removal",
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      "cveMetadata": {
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        "assignerShortName": "Linux",
        "cveId": "CVE-2024-27021",
        "datePublished": "2024-05-01T05:30:21.242Z",
        "dateReserved": "2024-02-19T14:20:24.210Z",
        "dateUpdated": "2025-05-04T09:02:27.050Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.