github - ghsa-5ww6-4m54-3jr9

GHSA-5WW6-4M54-3JR9

Vulnerability from github – Published: 2025-10-04 18:31 – Updated: 2025-10-04 18:31

Details

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

vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check

The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops.

That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.

This patch adds the missing nla_policy for vdpa max vqp attr to avoid such bugs.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53543"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:49Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check\n\nThe vdpa_nl_policy structure is used to validate the nlattr when parsing\nthe incoming nlmsg. It will ensure the attribute being described produces\na valid nlattr pointer in info-\u003eattrs before entering into each handler\nin vdpa_nl_ops.\n\nThat is to say, the missing part in vdpa_nl_policy may lead to illegal\nnlattr after parsing, which could lead to OOB read just like CVE-2023-3773.\n\nThis patch adds the missing nla_policy for vdpa max vqp attr to avoid\nsuch bugs.",
  "id": "GHSA-5ww6-4m54-3jr9",
  "modified": "2025-10-04T18:31:14Z",
  "published": "2025-10-04T18:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53543"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea65e8b5e6b1a34deda7564f09c90e9e80db436a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff71709445ac033e6e250d971683110e4781c068"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-53543 (GCVE-0-2023-53543)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:16 – Updated: 2025-10-04 15:16

Summary

In the Linux kernel, the following vulnerability has been resolved: vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa max vqp attr to avoid such bugs.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/ff71709445ac033e6…
	https://git.kernel.org/stable/c/ea65e8b5e6b1a34de…
	https://git.kernel.org/stable/c/5d6ba607d6cb5c58a…

Impacted products

Vendor

Product

Version

Linux

Affected: ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a , < ff71709445ac033e6e250d971683110e4781c068 (git)
Affected: ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a , < ea65e8b5e6b1a34deda7564f09c90e9e80db436a (git)
Affected: ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a , < 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f (git)

Linux

Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.47 , ≤ 6.1.* (semver)
Unaffected: 6.4.12 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/vdpa/vdpa.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ff71709445ac033e6e250d971683110e4781c068",
              "status": "affected",
              "version": "ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a",
              "versionType": "git"
            },
            {
              "lessThan": "ea65e8b5e6b1a34deda7564f09c90e9e80db436a",
              "status": "affected",
              "version": "ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a",
              "versionType": "git"
            },
            {
              "lessThan": "5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f",
              "status": "affected",
              "version": "ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/vdpa/vdpa.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.47",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check\n\nThe vdpa_nl_policy structure is used to validate the nlattr when parsing\nthe incoming nlmsg. It will ensure the attribute being described produces\na valid nlattr pointer in info-\u003eattrs before entering into each handler\nin vdpa_nl_ops.\n\nThat is to say, the missing part in vdpa_nl_policy may lead to illegal\nnlattr after parsing, which could lead to OOB read just like CVE-2023-3773.\n\nThis patch adds the missing nla_policy for vdpa max vqp attr to avoid\nsuch bugs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:16:52.114Z",
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        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f"
        }
      ],
      "title": "vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53543",
    "datePublished": "2025-10-04T15:16:52.114Z",
    "dateReserved": "2025-10-04T15:14:15.920Z",
    "dateUpdated": "2025-10-04T15:16:52.114Z",
    "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-5WW6-4M54-3JR9

CVE-2023-53543 (GCVE-0-2023-53543)

Tags

Sightings

Nomenclature