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

Vulnerability from cvelistv5 – Published: 2025-12-16 13:43 – Updated: 2025-12-20 08:52
VLAI?
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
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 9ecd238e8230e83a5c5436fd2261da4518f5c979 (git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < f5b69101f956f5b89605a13cb15f093a7906f2a1 (git)
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    Linux 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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          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c"
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          "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."
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      "providerMetadata": {
        "dateUpdated": "2025-12-20T08:52:16.194Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/f5b69101f956f5b89605a13cb15f093a7906f2a1"
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      "title": "drm/amd/display: Cache streams targeting link when performing LT automation",
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    "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"
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



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