fkie_nvd - fkie_cve-2022-50492

FKIE_CVE-2022-50492

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2025-10-06 14:56

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/msm: fix use-after-free on probe deferral The bridge counter was never reset when tearing down the DRM device so that stale pointers to deallocated structures would be accessed on the next tear down (e.g. after a second late bind deferral). Given enough bridges and a few probe deferrals this could currently also lead to data beyond the bridge array being corrupted. Patchwork: https://patchwork.freedesktop.org/patch/502665/

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0a30a47741b6df1f9555a0fac6aebb7e8c363bad
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6808abdb33bf90330e70a687d29f038507e06ebb

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: fix use-after-free on probe deferral\n\nThe bridge counter was never reset when tearing down the DRM device so\nthat stale pointers to deallocated structures would be accessed on the\nnext tear down (e.g. after a second late bind deferral).\n\nGiven enough bridges and a few probe deferrals this could currently also\nlead to data beyond the bridge array being corrupted.\n\nPatchwork: https://patchwork.freedesktop.org/patch/502665/"
    }
  ],
  "id": "CVE-2022-50492",
  "lastModified": "2025-10-06T14:56:47.823",
  "metrics": {},
  "published": "2025-10-04T16:15:46.190",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0a30a47741b6df1f9555a0fac6aebb7e8c363bad"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6808abdb33bf90330e70a687d29f038507e06ebb"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2022-50492 (GCVE-0-2022-50492)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:43 – Updated: 2025-10-04 15:43

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/0a30a47741b6df1f9…
	https://git.kernel.org/stable/c/6808abdb33bf90330…

Impacted products

Vendor

Product

Version

Linux

Affected: a3376e3ec81c5dd0622cbc187db76d2824d31c1c , < 0a30a47741b6df1f9555a0fac6aebb7e8c363bad (git)
Affected: a3376e3ec81c5dd0622cbc187db76d2824d31c1c , < 6808abdb33bf90330e70a687d29f038507e06ebb (git)

Linux

Affected: 3.12
Unaffected: 0 , < 3.12 (semver)
Unaffected: 6.0.7 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/msm_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0a30a47741b6df1f9555a0fac6aebb7e8c363bad",
              "status": "affected",
              "version": "a3376e3ec81c5dd0622cbc187db76d2824d31c1c",
              "versionType": "git"
            },
            {
              "lessThan": "6808abdb33bf90330e70a687d29f038507e06ebb",
              "status": "affected",
              "version": "a3376e3ec81c5dd0622cbc187db76d2824d31c1c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/msm/msm_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "lessThan": "3.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.7",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: fix use-after-free on probe deferral\n\nThe bridge counter was never reset when tearing down the DRM device so\nthat stale pointers to deallocated structures would be accessed on the\nnext tear down (e.g. after a second late bind deferral).\n\nGiven enough bridges and a few probe deferrals this could currently also\nlead to data beyond the bridge array being corrupted.\n\nPatchwork: https://patchwork.freedesktop.org/patch/502665/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:43:45.204Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0a30a47741b6df1f9555a0fac6aebb7e8c363bad"
        },
        {
          "url": "https://git.kernel.org/stable/c/6808abdb33bf90330e70a687d29f038507e06ebb"
        }
      ],
      "title": "drm/msm: fix use-after-free on probe deferral",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50492",
    "datePublished": "2025-10-04T15:43:45.204Z",
    "dateReserved": "2025-10-04T15:39:19.463Z",
    "dateUpdated": "2025-10-04T15:43:45.204Z",
    "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

FKIE_CVE-2022-50492

CVE-2022-50492 (GCVE-0-2022-50492)

Tags

Sightings

Nomenclature