github - ghsa-78f2-hq34-889m

GHSA-78F2-HQ34-889M

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

Details

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

drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe

During device boot, the HPD interrupt could be triggered before the DRM subsystem registers it6505 as a DRM bridge. In such cases, the driver tries to access AUX channel and causes NULL pointer dereference. Initializing the AUX channel earlier to prevent such error.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-50847"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:15:59Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe\n\nDuring device boot, the HPD interrupt could be triggered before the DRM\nsubsystem registers it6505 as a DRM bridge. In such cases, the driver\ntries to access AUX channel and causes NULL pointer dereference.\nInitializing the AUX channel earlier to prevent such error.",
  "id": "GHSA-78f2-hq34-889m",
  "modified": "2025-12-30T15:30:28Z",
  "published": "2025-12-30T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50847"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/172d4d64075075f955e6e416915e3f287eec514a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ed8505803774fc3f36a432718036c21cc51e2ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e577d4b13064c337b83fe7edecb3f34e87144821"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50847 (GCVE-0-2022-50847)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:11 – Updated: 2025-12-30 12:11

Title

drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe During device boot, the HPD interrupt could be triggered before the DRM subsystem registers it6505 as a DRM bridge. In such cases, the driver tries to access AUX channel and causes NULL pointer dereference. Initializing the AUX channel earlier to prevent such error.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8ed8505803774fc3f…
	https://git.kernel.org/stable/c/172d4d64075075f95…
	https://git.kernel.org/stable/c/e577d4b13064c337b…

Impacted products

Vendor

Product

Version

Linux

Affected: b5c84a9edcd418cd055becad6a22439e7c5e3bf8 , < 8ed8505803774fc3f36a432718036c21cc51e2ba (git)
Affected: b5c84a9edcd418cd055becad6a22439e7c5e3bf8 , < 172d4d64075075f955e6e416915e3f287eec514a (git)
Affected: b5c84a9edcd418cd055becad6a22439e7c5e3bf8 , < e577d4b13064c337b83fe7edecb3f34e87144821 (git)

Linux

Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/bridge/ite-it6505.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8ed8505803774fc3f36a432718036c21cc51e2ba",
              "status": "affected",
              "version": "b5c84a9edcd418cd055becad6a22439e7c5e3bf8",
              "versionType": "git"
            },
            {
              "lessThan": "172d4d64075075f955e6e416915e3f287eec514a",
              "status": "affected",
              "version": "b5c84a9edcd418cd055becad6a22439e7c5e3bf8",
              "versionType": "git"
            },
            {
              "lessThan": "e577d4b13064c337b83fe7edecb3f34e87144821",
              "status": "affected",
              "version": "b5c84a9edcd418cd055becad6a22439e7c5e3bf8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/bridge/ite-it6505.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe\n\nDuring device boot, the HPD interrupt could be triggered before the DRM\nsubsystem registers it6505 as a DRM bridge. In such cases, the driver\ntries to access AUX channel and causes NULL pointer dereference.\nInitializing the AUX channel earlier to prevent such error."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:11:03.949Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8ed8505803774fc3f36a432718036c21cc51e2ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/172d4d64075075f955e6e416915e3f287eec514a"
        },
        {
          "url": "https://git.kernel.org/stable/c/e577d4b13064c337b83fe7edecb3f34e87144821"
        }
      ],
      "title": "drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50847",
    "datePublished": "2025-12-30T12:11:03.949Z",
    "dateReserved": "2025-12-30T12:06:07.134Z",
    "dateUpdated": "2025-12-30T12:11:03.949Z",
    "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-78F2-HQ34-889M

CVE-2022-50847 (GCVE-0-2022-50847)

Tags

Sightings

Nomenclature