CVE-2022-49421 (GCVE-0-2022-49421)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2026-05-11 18:59
VLAI
Title
video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup
Summary
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < 6c92711db7c90f78e0b67ac2a8944d0fe7e12d83 (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < 2e2e2c71b2642289438392edbf5d08cdbc0b138b (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < 51eb1bb6baeb478538dd4ec6459fd68c44a855b1 (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < 8db59df7f5826e104db82cfddbf22a33a151193e (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < c1c4405222b6fc98c16e8c2aa679c14e41d81465 (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < f2dfb4ab887d67be7d0892ba041d3c8d738d3356 (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < bbb2a24e863b6a10129546a0a4ceea2f07deec39 (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < 38d245cebf545338a6bc1c7762023de3fbecd7b7 (git)
Affected: d10715be03bd8bad59ddc50236cb140c3bd73c7b , < b23789a59fa6f00e98a319291819f91fbba0deb8 (git)
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Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: video: fbdev: clcdfb: Se corrige la p\u00e9rdida de recuento de referencias en clcdfb_of_vram_setup of_parse_phandle() devuelve un puntero de nodo con el recuento de referencias incrementado, deber\u00edamos usar of_node_put() en \u00e9l cuando ya no lo necesitemos. Agregue of_node_put() faltante para evitar la p\u00e9rdida de recuento de referencias."
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        "published": "2025-02-26T07:01:18.533",
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            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6c92711db7c90f78e0b67ac2a8944d0fe7e12d83"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8db59df7f5826e104db82cfddbf22a33a151193e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b23789a59fa6f00e98a319291819f91fbba0deb8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/bbb2a24e863b6a10129546a0a4ceea2f07deec39"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c1c4405222b6fc98c16e8c2aa679c14e41d81465"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f2dfb4ab887d67be7d0892ba041d3c8d738d3356"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:24:21+00:00",
      "cve": "CVE-2022-49421",
      "id": "CVE-2022-49421",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49421.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:28:12Z",
      "cve": "CVE-2022-49421",
      "id": "CVE-2022-49421",
      "initial_release_date": "2025-02-27T03:07:11Z",
      "product_status:known_affected": "481",
      "product_status:known_not_affected": "205",
      "product_status:recommended": "319",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49421",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49421.json",
      "version": "60"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.