github - ghsa-jwm2-2q27-v4vh

GHSA-JWM2-2Q27-V4VH

Vulnerability from github – Published: 2025-04-03 09:32 – Updated: 2025-04-14 15:31

Details

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

drm/sched: Fix fence reference count leak

The last_scheduled fence leaks when an entity is being killed and adding the cleanup callback fails.

Decrement the reference count of prev when dma_fence_add_callback() fails, ensuring proper balance.

[phasta: add git tag info for stable kernel]

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-2025-21995"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-03T08:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sched: Fix fence reference count leak\n\nThe last_scheduled fence leaks when an entity is being killed and adding\nthe cleanup callback fails.\n\nDecrement the reference count of prev when dma_fence_add_callback()\nfails, ensuring proper balance.\n\n[phasta: add git tag info for stable kernel]",
  "id": "GHSA-jwm2-2q27-v4vh",
  "modified": "2025-04-14T15:31:54Z",
  "published": "2025-04-03T09:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21995"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1135a9431160575466ea9ac37ebd756ecbe35fff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35399c84dcedd6d31448fb9e1336ef52673f2882"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a952f1ab696873be124e31ce5ef964d36bce817f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c76bd3c99293834de7d1dca5de536616d5655e38"
    }
  ],
  "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-2025-21995 (GCVE-0-2025-21995)

Vulnerability from cvelistv5 – Published: 2025-04-03 07:18 – Updated: 2025-10-01 18:15

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Fix fence reference count leak The last_scheduled fence leaks when an entity is being killed and adding the cleanup callback fails. Decrement the reference count of prev when dma_fence_add_callback() fails, ensuring proper balance. [phasta: add git tag info for stable kernel]

Severity ?

5.5 (Medium)


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

CWE

CWE-noinfo Not enough information

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c76bd3c99293834de…
	https://git.kernel.org/stable/c/1135a943116057546…
	https://git.kernel.org/stable/c/35399c84dcedd6d31…
	https://git.kernel.org/stable/c/a952f1ab696873be1…

Impacted products

Vendor

Product

Version

Linux

Affected: 2fdb8a8f07c2f1353770a324fd19b8114e4329ac , < c76bd3c99293834de7d1dca5de536616d5655e38 (git)
Affected: 2fdb8a8f07c2f1353770a324fd19b8114e4329ac , < 1135a9431160575466ea9ac37ebd756ecbe35fff (git)
Affected: 2fdb8a8f07c2f1353770a324fd19b8114e4329ac , < 35399c84dcedd6d31448fb9e1336ef52673f2882 (git)
Affected: 2fdb8a8f07c2f1353770a324fd19b8114e4329ac , < a952f1ab696873be124e31ce5ef964d36bce817f (git)

Linux

Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.85 , ≤ 6.6.* (semver)
Unaffected: 6.12.21 , ≤ 6.12.* (semver)
Unaffected: 6.13.9 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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JSON

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  "containers": {
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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21995",
                "options": [
                  {
                    "Exploitation": "none"
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                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T18:15:25.572495Z",
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T18:15:29.450Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
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          "versions": [
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    "datePublished": "2025-04-03T07:18:59.178Z",
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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-JWM2-2Q27-V4VH

CVE-2025-21995 (GCVE-0-2025-21995)

Tags

Sightings

Nomenclature