github - ghsa-gh8v-hvqf-g2jx

GHSA-GH8V-HVQF-G2JX

Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-10-28 03:30

Details

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

net: xdp: Disallow attaching device-bound programs in generic mode

Device-bound programs are used to support RX metadata kfuncs. These kfuncs are driver-specific and rely on the driver context to read the metadata. This means they can't work in generic XDP mode. However, there is no check to disallow such programs from being attached in generic mode, in which case the metadata kfuncs will be called in an invalid context, leading to crashes.

Fix this by adding a check to disallow attaching device-bound programs in generic mode.

Severity ?

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-21808"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T20:16:03Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: xdp: Disallow attaching device-bound programs in generic mode\n\nDevice-bound programs are used to support RX metadata kfuncs. These\nkfuncs are driver-specific and rely on the driver context to read the\nmetadata. This means they can\u0027t work in generic XDP mode. However, there\nis no check to disallow such programs from being attached in generic\nmode, in which case the metadata kfuncs will be called in an invalid\ncontext, leading to crashes.\n\nFix this by adding a check to disallow attaching device-bound programs\nin generic mode.",
  "id": "GHSA-gh8v-hvqf-g2jx",
  "modified": "2025-10-28T03:30:13Z",
  "published": "2025-02-27T21:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21808"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3595599fa8360bb3c7afa7ee50c810b4a64106ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/557707906dd3e34b8a8c265f664d19f95799937e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1bc4a35a04cbeb85b6ef5911ec015baa424989f"
    }
  ],
  "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-2025-21808 (GCVE-0-2025-21808)

Vulnerability from cvelistv5 – Published: 2025-02-27 20:01 – Updated: 2025-05-04 07:21

Summary

In the Linux kernel, the following vulnerability has been resolved: net: xdp: Disallow attaching device-bound programs in generic mode Device-bound programs are used to support RX metadata kfuncs. These kfuncs are driver-specific and rely on the driver context to read the metadata. This means they can't work in generic XDP mode. However, there is no check to disallow such programs from being attached in generic mode, in which case the metadata kfuncs will be called in an invalid context, leading to crashes. Fix this by adding a check to disallow attaching device-bound programs in generic mode.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b1bc4a35a04cbeb85…
	https://git.kernel.org/stable/c/557707906dd3e34b8…
	https://git.kernel.org/stable/c/5a9eae683d6c36e8a…
	https://git.kernel.org/stable/c/3595599fa8360bb3c…

Impacted products

Vendor

Product

Version

Linux

Affected: 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 , < b1bc4a35a04cbeb85b6ef5911ec015baa424989f (git)
Affected: 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 , < 557707906dd3e34b8a8c265f664d19f95799937e (git)
Affected: 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 , < 5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1 (git)
Affected: 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 , < 3595599fa8360bb3c7afa7ee50c810b4a64106ea (git)

Linux

Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.76 , ≤ 6.6.* (semver)
Unaffected: 6.12.13 , ≤ 6.12.* (semver)
Unaffected: 6.13.2 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b1bc4a35a04cbeb85b6ef5911ec015baa424989f",
              "status": "affected",
              "version": "2b3486bc2d237ec345b3942b7be5deabf8c8fed1",
              "versionType": "git"
            },
            {
              "lessThan": "557707906dd3e34b8a8c265f664d19f95799937e",
              "status": "affected",
              "version": "2b3486bc2d237ec345b3942b7be5deabf8c8fed1",
              "versionType": "git"
            },
            {
              "lessThan": "5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1",
              "status": "affected",
              "version": "2b3486bc2d237ec345b3942b7be5deabf8c8fed1",
              "versionType": "git"
            },
            {
              "lessThan": "3595599fa8360bb3c7afa7ee50c810b4a64106ea",
              "status": "affected",
              "version": "2b3486bc2d237ec345b3942b7be5deabf8c8fed1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.76",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.76",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.13",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.2",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: xdp: Disallow attaching device-bound programs in generic mode\n\nDevice-bound programs are used to support RX metadata kfuncs. These\nkfuncs are driver-specific and rely on the driver context to read the\nmetadata. This means they can\u0027t work in generic XDP mode. However, there\nis no check to disallow such programs from being attached in generic\nmode, in which case the metadata kfuncs will be called in an invalid\ncontext, leading to crashes.\n\nFix this by adding a check to disallow attaching device-bound programs\nin generic mode."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:21:38.647Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b1bc4a35a04cbeb85b6ef5911ec015baa424989f"
        },
        {
          "url": "https://git.kernel.org/stable/c/557707906dd3e34b8a8c265f664d19f95799937e"
        },
        {
          "url": "https://git.kernel.org/stable/c/5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1"
        },
        {
          "url": "https://git.kernel.org/stable/c/3595599fa8360bb3c7afa7ee50c810b4a64106ea"
        }
      ],
      "title": "net: xdp: Disallow attaching device-bound programs in generic mode",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21808",
    "datePublished": "2025-02-27T20:01:00.328Z",
    "dateReserved": "2024-12-29T08:45:45.772Z",
    "dateUpdated": "2025-05-04T07:21:38.647Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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-GH8V-HVQF-G2JX

CVE-2025-21808 (GCVE-0-2025-21808)

Tags

Sightings

Nomenclature