Vulnerability-Lookup

GHSA-3R3H-Q9JP-47GF

Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-21 15:41

Details

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

drm/mediatek: Fix pdev reference leak in mtk_drm_bind()

When the device is not the mmsys master, mtk_drm_bind() returns early after taking a reference on the disp-mutex device via of_find_device_by_node(), without ever dropping it: mtk_drm_unbind() only puts mutex_dev for the master. Drop the reference before returning from the non-master path.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98781"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-18T16:17:32Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix pdev reference leak in mtk_drm_bind()\n\nWhen the device is not the mmsys master, mtk_drm_bind() returns early\nafter taking a reference on the disp-mutex device via\nof_find_device_by_node(), without ever dropping it: mtk_drm_unbind()\nonly puts mutex_dev for the master. Drop the reference before returning\nfrom the non-master path.",
  "id": "GHSA-3r3h-q9jp-47gf",
  "modified": "2026-10-21T15:41:59Z",
  "published": "2026-10-18T18:32:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98781"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a0ae61067671f556eeaf5ea4e59a1db63163d70"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a8f9cad0fced77b36b297c67c42730c9cb32ec6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb3e0244514d13507c6048777e1d0277e611cf6c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-98781 (GCVE-0-2026-98781)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:48 – Updated: 2026-10-21 12:56

Title

drm/mediatek: Fix pdev reference leak in mtk_drm_bind()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix pdev reference leak in mtk_drm_bind() When the device is not the mmsys master, mtk_drm_bind() returns early after taking a reference on the disp-mutex device via of_find_device_by_node(), without ever dropping it: mtk_drm_unbind() only puts mutex_dev for the master. Drop the reference before returning from the non-master path.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7018 records in the last 180 days details

References

5 references

URL	Tags
https://git.kernel.org/stable/c/4a0ae61067671f556…
https://git.kernel.org/stable/c/4a8f9cad0fced77b3…
https://git.kernel.org/stable/c/b84f1386d84b3a73f…
https://git.kernel.org/stable/c/cb3e0244514d13507…
https://git.kernel.org/stable/c/3753e34b73fcbe2a2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1ef7ed48356cd5f9af2b7671956991b658d8c2ba , < 4a0ae61067671f556eeaf5ea4e59a1db63163d70 (git) Affected: 1ef7ed48356cd5f9af2b7671956991b658d8c2ba , < 4a8f9cad0fced77b36b297c67c42730c9cb32ec6 (git) Affected: 1ef7ed48356cd5f9af2b7671956991b658d8c2ba , < b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3 (git) Affected: 1ef7ed48356cd5f9af2b7671956991b658d8c2ba , < cb3e0244514d13507c6048777e1d0277e611cf6c (git) Affected: 1ef7ed48356cd5f9af2b7671956991b658d8c2ba , < 3753e34b73fcbe2a2edbe984614a008a261697ef (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.113 , ≤ 6.12.* (semver) Unaffected: 6.18.56 , ≤ 6.18.* (semver) Unaffected: 7.2.10 , ≤ 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/mediatek/mtk_drm_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4a0ae61067671f556eeaf5ea4e59a1db63163d70",
              "status": "affected",
              "version": "1ef7ed48356cd5f9af2b7671956991b658d8c2ba",
              "versionType": "git"
            },
            {
              "lessThan": "4a8f9cad0fced77b36b297c67c42730c9cb32ec6",
              "status": "affected",
              "version": "1ef7ed48356cd5f9af2b7671956991b658d8c2ba",
              "versionType": "git"
            },
            {
              "lessThan": "b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3",
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              "versionType": "git"
            },
            {
              "lessThan": "cb3e0244514d13507c6048777e1d0277e611cf6c",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "3753e34b73fcbe2a2edbe984614a008a261697ef",
              "status": "affected",
              "version": "1ef7ed48356cd5f9af2b7671956991b658d8c2ba",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/mediatek/mtk_drm_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.4",
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                },
                {
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                }
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix pdev reference leak in mtk_drm_bind()\n\nWhen the device is not the mmsys master, mtk_drm_bind() returns early\nafter taking a reference on the disp-mutex device via\nof_find_device_by_node(), without ever dropping it: mtk_drm_unbind()\nonly puts mutex_dev for the master. Drop the reference before returning\nfrom the non-master path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:56:55.059Z",
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          "url": "https://git.kernel.org/stable/c/4a0ae61067671f556eeaf5ea4e59a1db63163d70"
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        },
        {
          "url": "https://git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef"
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      "title": "drm/mediatek: Fix pdev reference leak in mtk_drm_bind()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98781",
    "datePublished": "2026-10-18T15:48:18.590Z",
    "dateReserved": "2026-09-25T10:25:14.369Z",
    "dateUpdated": "2026-10-21T12:56:55.059Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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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