CVE-2024-44971 (GCVE-0-2024-44971)

Vulnerability from cvelistv5 – Published: 2024-09-04 18:56 – Updated: 2026-05-11 20:32
VLAI
Title
net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register() bcm_sf2_mdio_register() calls of_phy_find_device() and then phy_device_remove() in a loop to remove existing PHY devices. of_phy_find_device() eventually calls bus_find_device(), which calls get_device() on the returned struct device * to increment the refcount. The current implementation does not decrement the refcount, which causes memory leak. This commit adds the missing phy_device_free() call to decrement the refcount via put_device() to balance the refcount.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:39 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6666 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 771089c2a485958e423f305e974303760167b45c , < b7b8d9f5e679af60c94251fd6728dde34be69a71 (git)
Affected: 771089c2a485958e423f305e974303760167b45c , < c05516c072903f6fb9134b8e7e1ad4bffcdc4819 (git)
Affected: 771089c2a485958e423f305e974303760167b45c , < 7feef10768ea71d468d9bbc1e0d14c461876768c (git)
Affected: 771089c2a485958e423f305e974303760167b45c , < a7d2808d67570e6acae45c2a96e0d59986888e4c (git)
Affected: 771089c2a485958e423f305e974303760167b45c , < f3d5efe18a11f94150fee8b3fda9d62079af640a (git)
Affected: 771089c2a485958e423f305e974303760167b45c , < e3862093ee93fcfbdadcb7957f5f8974fffa806a (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.224 , ≤ 5.10.* (semver)
Unaffected: 5.15.165 , ≤ 5.15.* (semver)
Unaffected: 6.1.105 , ≤ 6.1.* (semver)
Unaffected: 6.6.46 , ≤ 6.6.* (semver)
Unaffected: 6.10.5 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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      "cve": "CVE-2024-44971",
      "id": "CVE-2024-44971",
      "initial_release_date": "2024-09-04T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-44971.json",
      "version": "3"
    },
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            },
            "references": [
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
              },
              {
                "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
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                  "content": {
                    "id": "CVE-2024-44971",
                    "options": [
                      {
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                      },
                      {
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                      },
                      {
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                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T17:39:14.220470Z",
                    "version": "2.0.3"
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              "dateUpdated": "2024-09-11T12:42:27.473Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
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              "product": "Linux",
              "programFiles": [
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            {
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              ],
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              "vendor": "Linux",
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                  "version": "5.10"
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                  "version": "0",
                  "versionType": "semver"
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                  "status": "unaffected",
                  "version": "5.10.224",
                  "versionType": "semver"
                },
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                  "status": "unaffected",
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                  "versionType": "semver"
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                  "status": "unaffected",
                  "version": "6.1.105",
                  "versionType": "semver"
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                {
                  "lessThanOrEqual": "6.6.*",
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                  "versionType": "semver"
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                  "status": "unaffected",
                  "version": "6.11",
                  "versionType": "original_commit_for_fix"
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          ],
          "cpeApplicability": [
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                      "versionStartIncluding": "5.10",
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                    },
                    {
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                    },
                    {
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()\n\nbcm_sf2_mdio_register() calls of_phy_find_device() and then\nphy_device_remove() in a loop to remove existing PHY devices.\nof_phy_find_device() eventually calls bus_find_device(), which calls\nget_device() on the returned struct device * to increment the refcount.\nThe current implementation does not decrement the refcount, which causes\nmemory leak.\n\nThis commit adds the missing phy_device_free() call to decrement the\nrefcount via put_device() to balance the refcount."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:32:58.689Z",
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            },
            {
              "url": "https://git.kernel.org/stable/c/e3862093ee93fcfbdadcb7957f5f8974fffa806a"
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          ],
          "title": "net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()",
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        "assignerShortName": "Linux",
        "cveId": "CVE-2024-44971",
        "datePublished": "2024-09-04T18:56:47.475Z",
        "dateReserved": "2024-08-21T05:34:56.669Z",
        "dateUpdated": "2026-05-11T20:32:58.689Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
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    }
  }
}



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