github - ghsa-7866-w9g3-g699

GHSA-7866-W9G3-G699

Vulnerability from github – Published: 2024-11-19 18:31 – Updated: 2025-03-13 15:32

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.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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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 – Updated: 2025-05-04 09:52

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.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/80aec5a855106c668…
	https://git.kernel.org/stable/c/303846a3dc275e35f…
	https://git.kernel.org/stable/c/37233169a6ea91202…

Impacted products

Vendor

Product

Version

Linux

Affected: ebccacb0b599fa788a16eff35a7de14621f56804 , < 80aec5a855106c668b5978c48e789f010198b832 (git)
Affected: 604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955 , < 303846a3dc275e35fbb556d72f1e356ba669e4f8 (git)
Affected: 604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955 , < 37233169a6ea912020c572f870075a63293b786a (git)

Linux

Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.11.7 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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{
  "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"
      },
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          "url": "https://git.kernel.org/stable/c/80aec5a855106c668b5978c48e789f010198b832"
        },
        {
          "url": "https://git.kernel.org/stable/c/303846a3dc275e35fbb556d72f1e356ba669e4f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/37233169a6ea912020c572f870075a63293b786a"
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      ],
      "title": "riscv: Prevent a bad reference count on CPU nodes",
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        "engine": "bippy-1.2.0"
      }
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  "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"
  },
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-7866-W9G3-G699

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

Tags

Sightings

Nomenclature