Vulnerability-Lookup

GHSA-M7H2-H39Q-29WG

Vulnerability from github – Published: 2026-10-23 15:31 – Updated: 2026-10-23 15:31

Details

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

drm/amd/display: Remove sink usage from DPMS

[Why] stream->sink is optional and can be null, so should always be checked before dereference. Additionally, most of its usage in DPMS sequences is for stream->sink->link, which can be replaced with stream->link, as the two should always be the same.

[How] * Replace stream->sink->link in DPMS on/off * Add assert to USB4 BW allocation where sink is required * Avoid inconsistencies in resource access, e.g. don't repeat stream->link after it was already saved to a local variable * Pull out effective VPG calculation to helper getter * Formatting fixes

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98926"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-23T13:17:13Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Remove sink usage from DPMS\n\n[Why]\nstream-\u003esink is optional and can be null, so should always be checked\nbefore dereference. Additionally, most of its usage in DPMS sequences\nis for stream-\u003esink-\u003elink, which can be replaced with stream-\u003elink,\nas the two should always be the same.\n\n[How]\n* Replace stream-\u003esink-\u003elink in DPMS on/off\n* Add assert to USB4 BW allocation where sink is required\n* Avoid inconsistencies in resource access, e.g. don\u0027t repeat\nstream-\u003elink after it was already saved to a local variable\n* Pull out effective VPG calculation to helper getter\n* Formatting fixes",
  "id": "GHSA-m7h2-h39q-29wg",
  "modified": "2026-10-23T15:31:31Z",
  "published": "2026-10-23T15:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98926"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b1eebd359685dd681f6e0df5540a5bb985a27bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fa813b7fd1eccbed13e126166cf764f1f11a7d3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98926 (GCVE-0-2026-98926)

Vulnerability from cvelistv5 – Published: 2026-10-23 12:05 – Updated: 2026-10-23 12:05

Title

drm/amd/display: Remove sink usage from DPMS

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Remove sink usage from DPMS [Why] stream->sink is optional and can be null, so should always be checked before dereference. Additionally, most of its usage in DPMS sequences is for stream->sink->link, which can be replaced with stream->link, as the two should always be the same. [How] * Replace stream->sink->link in DPMS on/off * Add assert to USB4 BW allocation where sink is required * Avoid inconsistencies in resource access, e.g. don't repeat stream->link after it was already saved to a local variable * Pull out effective VPG calculation to helper getter * Formatting fixes

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7061 records in the last 180 days details

References

2 references

URL	Tags
https://git.kernel.org/stable/c/0b1eebd359685dd68…
https://git.kernel.org/stable/c/8fa813b7fd1eccbed…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0b1eebd359685dd681f6e0df5540a5bb985a27bf (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8fa813b7fd1eccbed13e126166cf764f1f11a7d3 (git) Affected: 0 , < 7.2.9 (semver)
Linux	Linux	Unaffected: 7.2.9 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/link/link_dpms.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "0b1eebd359685dd681f6e0df5540a5bb985a27bf",
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              "versionType": "git"
            },
            {
              "lessThan": "8fa813b7fd1eccbed13e126166cf764f1f11a7d3",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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              "version": "0",
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
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          "nodes": [
            {
              "cpeMatch": [
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "vulnerable": true
                }
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      "providerMetadata": {
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        {
          "url": "https://git.kernel.org/stable/c/8fa813b7fd1eccbed13e126166cf764f1f11a7d3"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98926",
    "datePublished": "2026-10-23T12:05:54.511Z",
    "dateReserved": "2026-09-25T10:25:14.380Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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Sightings

Author	Source	Type	Date	Other

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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