github - ghsa-gvwq-vp5c-rpm6

GHSA-GVWQ-VP5C-RPM6

Vulnerability from github – Published: 2025-09-18 15:30 – Updated: 2025-09-18 15:30

Details

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

drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached

The MediaTek DisplayPort interface bridge driver starts its interrupts as soon as its probed. However when the interrupts trigger the bridge might not have been attached to a DRM device. As drm_helper_hpd_irq_event() does not check whether the passed in drm_device is valid or not, a NULL pointer passed in results in a kernel NULL pointer dereference in it.

Check whether the bridge is attached and only trigger an HPD event if it is.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53389"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T14:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: dp: Only trigger DRM HPD events if bridge is attached\n\nThe MediaTek DisplayPort interface bridge driver starts its interrupts\nas soon as its probed. However when the interrupts trigger the bridge\nmight not have been attached to a DRM device. As drm_helper_hpd_irq_event()\ndoes not check whether the passed in drm_device is valid or not, a NULL\npointer passed in results in a kernel NULL pointer dereference in it.\n\nCheck whether the bridge is attached and only trigger an HPD event if\nit is.",
  "id": "GHSA-gvwq-vp5c-rpm6",
  "modified": "2025-09-18T15:30:34Z",
  "published": "2025-09-18T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53389"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-53389 (GCVE-0-2023-53389)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2025-09-18 13:33

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached The MediaTek DisplayPort interface bridge driver starts its interrupts as soon as its probed. However when the interrupts trigger the bridge might not have been attached to a DRM device. As drm_helper_hpd_irq_event() does not check whether the passed in drm_device is valid or not, a NULL pointer passed in results in a kernel NULL pointer dereference in it. Check whether the bridge is attached and only trigger an HPD event if it is.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6524d3d58797975cc…
	https://git.kernel.org/stable/c/3551789d0635dfb2d…
	https://git.kernel.org/stable/c/d1c04e338016ae251…
	https://git.kernel.org/stable/c/36b617f7e4ae663fc…

Impacted products

Vendor

Product

Version

Linux

Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < 6524d3d58797975cc40b85be1e9b89721b4e8d0b (git)
Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < 3551789d0635dfb2df8ab8e7fdbf0647e9c1724c (git)
Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < d1c04e338016ae2517c641806a831b1f3eee2bed (git)
Affected: f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b , < 36b617f7e4ae663fcadd202ea061ca695ca75539 (git)

Linux

Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/mediatek/mtk_dp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b",
              "versionType": "git"
            },
            {
              "lessThan": "3551789d0635dfb2df8ab8e7fdbf0647e9c1724c",
              "status": "affected",
              "version": "f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b",
              "versionType": "git"
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            {
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        },
        {
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          "product": "Linux",
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          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "6.1"
            },
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              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver"
            },
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              "version": "6.3.2",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.4",
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            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.28",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
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              "operator": "OR"
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: dp: Only trigger DRM HPD events if bridge is attached\n\nThe MediaTek DisplayPort interface bridge driver starts its interrupts\nas soon as its probed. However when the interrupts trigger the bridge\nmight not have been attached to a DRM device. As drm_helper_hpd_irq_event()\ndoes not check whether the passed in drm_device is valid or not, a NULL\npointer passed in results in a kernel NULL pointer dereference in it.\n\nCheck whether the bridge is attached and only trigger an HPD event if\nit is."
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      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:32.095Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539"
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    "datePublished": "2025-09-18T13:33:32.095Z",
    "dateReserved": "2025-09-17T14:54:09.737Z",
    "dateUpdated": "2025-09-18T13:33:32.095Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-GVWQ-VP5C-RPM6

CVE-2023-53389 (GCVE-0-2023-53389)

Tags

Sightings

Nomenclature