github - ghsa-pm49-6j2c-6857

GHSA-PM49-6J2C-6857

Vulnerability from github – Published: 2025-01-08 18:30 – Updated: 2025-01-10 00:30

Details

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

drm/amd/display: Fix handling of plane refcount

[Why] The mechanism to backup and restore plane states doesn't maintain refcount, which can cause issues if the refcount of the plane changes in between backup and restore operations, such as memory leaks if the refcount was supposed to go down, or double frees / invalid memory accesses if the refcount was supposed to go up.

[How] Cache and re-apply current refcount when restoring plane states.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56775"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401",
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-08T18:15:18Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix handling of plane refcount\n\n[Why]\nThe mechanism to backup and restore plane states doesn\u0027t maintain\nrefcount, which can cause issues if the refcount of the plane changes\nin between backup and restore operations, such as memory leaks if the\nrefcount was supposed to go down, or double frees / invalid memory\naccesses if the refcount was supposed to go up.\n\n[How]\nCache and re-apply current refcount when restoring plane states.",
  "id": "GHSA-pm49-6j2c-6857",
  "modified": "2025-01-10T00:30:35Z",
  "published": "2025-01-08T18:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56775"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27227a234c1487cb7a684615f0749c455218833a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8cb2f6793845f135b28361ba8e96901cae3e5790"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-56775 (GCVE-0-2024-56775)

Vulnerability from cvelistv5 – Published: 2025-01-08 17:49 – Updated: 2025-10-01 19:57

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix handling of plane refcount [Why] The mechanism to backup and restore plane states doesn't maintain refcount, which can cause issues if the refcount of the plane changes in between backup and restore operations, such as memory leaks if the refcount was supposed to go down, or double frees / invalid memory accesses if the refcount was supposed to go up. [How] Cache and re-apply current refcount when restoring plane states.

Severity ?

7.8 (High)


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

CWE

CWE-415 - Double Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8cb2f6793845f135b…
	https://git.kernel.org/stable/c/27227a234c1487cb7…

Impacted products

Vendor

Product

Version

Linux

Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 8cb2f6793845f135b28361ba8e96901cae3e5790 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 27227a234c1487cb7a684615f0749c455218833a (git)

Linux

Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.12.4 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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      "affected": [
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          "programFiles": [
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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-PM49-6J2C-6857

CVE-2024-56775 (GCVE-0-2024-56775)

Tags

Sightings

Nomenclature