github - ghsa-pvv9-vqm2-p5fx

GHSA-PVV9-VQM2-P5FX

Vulnerability from github – Published: 2025-04-02 15:31 – Updated: 2025-11-04 21:31

Details

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

fs/netfs/read_collect: add to next->prev_donated

If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the prev_donated field, causing data corruption and a BUG() crash ("Can't donate prior to front").

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-2025-21988"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-02T13:15:43Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/netfs/read_collect: add to next-\u003eprev_donated\n\nIf multiple subrequests donate data to the same \"next\" request\n(depending on the subrequest completion order), each of them would\noverwrite the `prev_donated` field, causing data corruption and a\nBUG() crash (\"Can\u0027t donate prior to front\").",
  "id": "GHSA-pvv9-vqm2-p5fx",
  "modified": "2025-11-04T21:31:31Z",
  "published": "2025-04-02T15:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21988"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/62b9ad7e52d4777f7e775ee1f0ad2452f6041024"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121"
    }
  ],
  "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-2025-21988 (GCVE-0-2025-21988)

Vulnerability from cvelistv5 – Published: 2025-04-02 12:53 – Updated: 2025-10-10 16:45

Summary

In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/62b9ad7e52d4777f7…
	https://git.kernel.org/stable/c/e25cec3b76aba47a4…
	https://git.kernel.org/stable/c/e2d46f2ec33253381…

Impacted products

Vendor

Product

Version

Linux

Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < 62b9ad7e52d4777f7e775ee1f0ad2452f6041024 (git)
Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < e25cec3b76aba47a49138d2162fc809c6cd49c9e (git)
Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < e2d46f2ec332533816417b60933954173f602121 (git)

Linux

Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.20 , ≤ 6.12.* (semver)
Unaffected: 6.13.8 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/read_collect.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "ee4cdf7ba857a894ad1650d6ab77669cbbfa329e",
              "versionType": "git"
            },
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              "version": "ee4cdf7ba857a894ad1650d6ab77669cbbfa329e",
              "versionType": "git"
            },
            {
              "lessThan": "e2d46f2ec332533816417b60933954173f602121",
              "status": "affected",
              "version": "ee4cdf7ba857a894ad1650d6ab77669cbbfa329e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/read_collect.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
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                  "versionStartIncluding": "6.12",
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                },
                {
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                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/netfs/read_collect: add to next-\u003eprev_donated\n\nIf multiple subrequests donate data to the same \"next\" request\n(depending on the subrequest completion order), each of them would\noverwrite the `prev_donated` field, causing data corruption and a\nBUG() crash (\"Can\u0027t donate prior to front\")."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-10T16:45:43.112Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121"
        }
      ],
      "title": "fs/netfs/read_collect: add to next-\u003eprev_donated",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21988",
    "datePublished": "2025-04-02T12:53:12.170Z",
    "dateReserved": "2024-12-29T08:45:45.800Z",
    "dateUpdated": "2025-10-10T16:45:43.112Z",
    "state": "PUBLISHED"
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}

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-PVV9-VQM2-P5FX

CVE-2025-21988 (GCVE-0-2025-21988)

Tags

Sightings

Nomenclature