github - ghsa-vvxr-29hr-8c7g

GHSA-VVXR-29HR-8C7G

Vulnerability from github – Published: 2025-12-16 15:30 – Updated: 2025-12-16 15:30

Details

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

drm/amd/display: Cache streams targeting link when performing LT automation

[WHY] Last LT automation update can cause crash by referencing current_state and calling into dc_update_planes_and_stream which may clobber current_state.

[HOW] Cache relevant stream pointers and iterate through them instead of relying on the current_state.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68196"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:52Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Cache streams targeting link when performing LT automation\n\n[WHY]\nLast LT automation update can cause crash by referencing current_state and\ncalling into dc_update_planes_and_stream which may clobber current_state.\n\n[HOW]\nCache relevant stream pointers and iterate through them instead of relying\non the current_state.",
  "id": "GHSA-vvxr-29hr-8c7g",
  "modified": "2025-12-16T15:30:45Z",
  "published": "2025-12-16T15:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68196"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ecd238e8230e83a5c5436fd2261da4518f5c979"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5b69101f956f5b89605a13cb15f093a7906f2a1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68196 (GCVE-0-2025-68196)

Vulnerability from cvelistv5 – Published: 2025-12-16 13:43 – Updated: 2025-12-20 08:52

Title

drm/amd/display: Cache streams targeting link when performing LT automation

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Cache streams targeting link when performing LT automation [WHY] Last LT automation update can cause crash by referencing current_state and calling into dc_update_planes_and_stream which may clobber current_state. [HOW] Cache relevant stream pointers and iterate through them instead of relying on the current_state.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/9ecd238e8230e83a5…
	https://git.kernel.org/stable/c/f5b69101f956f5b89…

Impacted products

Vendor

Product

Version

Linux

Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 9ecd238e8230e83a5c5436fd2261da4518f5c979 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < f5b69101f956f5b89605a13cb15f093a7906f2a1 (git)

Linux

Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9ecd238e8230e83a5c5436fd2261da4518f5c979",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            },
            {
              "lessThan": "f5b69101f956f5b89605a13cb15f093a7906f2a1",
              "status": "affected",
              "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.8",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Cache streams targeting link when performing LT automation\n\n[WHY]\nLast LT automation update can cause crash by referencing current_state and\ncalling into dc_update_planes_and_stream which may clobber current_state.\n\n[HOW]\nCache relevant stream pointers and iterate through them instead of relying\non the current_state."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-20T08:52:16.194Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9ecd238e8230e83a5c5436fd2261da4518f5c979"
        },
        {
          "url": "https://git.kernel.org/stable/c/f5b69101f956f5b89605a13cb15f093a7906f2a1"
        }
      ],
      "title": "drm/amd/display: Cache streams targeting link when performing LT automation",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68196",
    "datePublished": "2025-12-16T13:43:22.553Z",
    "dateReserved": "2025-12-16T13:41:40.253Z",
    "dateUpdated": "2025-12-20T08:52:16.194Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-VVXR-29HR-8C7G

CVE-2025-68196 (GCVE-0-2025-68196)

Tags

Sightings

Nomenclature