github - ghsa-7866-w9g3-g699

ghsa-7866-w9g3-g699

Vulnerability from github

Published

2024-11-19 18:31

Modified

2025-03-13 15:32

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

In the Linux kernel, the following vulnerability has been resolved:

riscv: Prevent a bad reference count on CPU nodes

When populating cache leaves we previously fetched the CPU device node at the very beginning. But when ACPI is enabled we go through a specific branch which returns early and does not call 'of_node_put' for the node that was acquired.

Since we are not using a CPU device node for the ACPI code anyways, we can simply move the initialization of it just passed the ACPI block, and we are guaranteed to have an 'of_node_put' call for the acquired node. This prevents a bad reference count of the CPU device node.

Moreover, the previous function did not check for errors when acquiring the device node, so a return -ENOENT has been added for that case.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53075"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T18:15:27Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Prevent a bad reference count on CPU nodes\n\nWhen populating cache leaves we previously fetched the CPU device node\nat the very beginning. But when ACPI is enabled we go through a\nspecific branch which returns early and does not call \u0027of_node_put\u0027 for\nthe node that was acquired.\n\nSince we are not using a CPU device node for the ACPI code anyways, we\ncan simply move the initialization of it just passed the ACPI block, and\nwe are guaranteed to have an \u0027of_node_put\u0027 call for the acquired node.\nThis prevents a bad reference count of the CPU device node.\n\nMoreover, the previous function did not check for errors when acquiring\nthe device node, so a return -ENOENT has been added for that case.",
  "id": "GHSA-7866-w9g3-g699",
  "modified": "2025-03-13T15:32:41Z",
  "published": "2024-11-19T18:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53075"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/303846a3dc275e35fbb556d72f1e356ba669e4f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37233169a6ea912020c572f870075a63293b786a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80aec5a855106c668b5978c48e789f010198b832"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-53075 (GCVE-0-2024-53075)

Vulnerability from cvelistv5

Published

2024-11-19 17:31

Modified

2025-05-04 09:52

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent a bad reference count on CPU nodes When populating cache leaves we previously fetched the CPU device node at the very beginning. But when ACPI is enabled we go through a specific branch which returns early and does not call 'of_node_put' for the node that was acquired. Since we are not using a CPU device node for the ACPI code anyways, we can simply move the initialization of it just passed the ACPI block, and we are guaranteed to have an 'of_node_put' call for the acquired node. This prevents a bad reference count of the CPU device node. Moreover, the previous function did not check for errors when acquiring the device node, so a return -ENOENT has been added for that case.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/80aec5a855106c668b5978c48e789f010198b832
	https://git.kernel.org/stable/c/303846a3dc275e35fbb556d72f1e356ba669e4f8
	https://git.kernel.org/stable/c/37233169a6ea912020c572f870075a63293b786a

Impacted products

Vendor

Product

Version

▼

Linux

Version: ebccacb0b599fa788a16eff35a7de14621f56804
Version: 604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955
Version: 604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955

Linux

Version: 6.11

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kernel/cacheinfo.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "80aec5a855106c668b5978c48e789f010198b832",
              "status": "affected",
              "version": "ebccacb0b599fa788a16eff35a7de14621f56804",
              "versionType": "git"
            },
            {
              "lessThan": "303846a3dc275e35fbb556d72f1e356ba669e4f8",
              "status": "affected",
              "version": "604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955",
              "versionType": "git"
            },
            {
              "lessThan": "37233169a6ea912020c572f870075a63293b786a",
              "status": "affected",
              "version": "604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kernel/cacheinfo.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.7",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Prevent a bad reference count on CPU nodes\n\nWhen populating cache leaves we previously fetched the CPU device node\nat the very beginning. But when ACPI is enabled we go through a\nspecific branch which returns early and does not call \u0027of_node_put\u0027 for\nthe node that was acquired.\n\nSince we are not using a CPU device node for the ACPI code anyways, we\ncan simply move the initialization of it just passed the ACPI block, and\nwe are guaranteed to have an \u0027of_node_put\u0027 call for the acquired node.\nThis prevents a bad reference count of the CPU device node.\n\nMoreover, the previous function did not check for errors when acquiring\nthe device node, so a return -ENOENT has been added for that case."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:52:19.201Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/80aec5a855106c668b5978c48e789f010198b832"
        },
        {
          "url": "https://git.kernel.org/stable/c/303846a3dc275e35fbb556d72f1e356ba669e4f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/37233169a6ea912020c572f870075a63293b786a"
        }
      ],
      "title": "riscv: Prevent a bad reference count on CPU nodes",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53075",
    "datePublished": "2024-11-19T17:31:39.625Z",
    "dateReserved": "2024-11-19T17:17:24.976Z",
    "dateUpdated": "2025-05-04T09:52:19.201Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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