Vulnerability-Lookup

FKIE_CVE-2022-50767

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-06-17 05:24

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: Fix several use-after-free bugs Several types of UAFs can occur when physically removing a USB device. Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and in this function, there is kref_put() that finally calls ufx_free(). This fix prevents multiple UAFs.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5385af2f89bc352fb70753ab41b2bb036190141f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/smscufx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "3f40852d671072836fb7ae331a1f28a24223c4e8",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "70faf9d9b6cc74418716bbf76fe75bd2da10ad4a",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "5385af2f89bc352fb70753ab41b2bb036190141f",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "cc6a7249842fceda7574ceb63275a2d5e99d2862",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "8d924b262f3178a9b17c17d4306a9f426c508bd9",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "cc67482c9e5f2c80d62f623bcc347c29f9f648e1",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/smscufx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.2"
            },
            {
              "lessThan": "3.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.332",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.298",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.264",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.223",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.153",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: smscufx: Fix several use-after-free bugs\n\nSeveral types of UAFs can occur when physically removing a USB device.\n\nAdds ufx_ops_destroy() function to .fb_destroy of fb_ops, and\nin this function, there is kref_put() that finally calls ufx_free().\n\nThis fix prevents multiple UAFs."
    }
  ],
  "id": "CVE-2022-50767",
  "lastModified": "2026-06-17T05:24:08.567",
  "metrics": {},
  "published": "2025-12-24T13:16:03.503",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5385af2f89bc352fb70753ab41b2bb036190141f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2022-50767 (GCVE-0-2022-50767)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:05 – Updated: 2026-05-11 19:25

Title

fbdev: smscufx: Fix several use-after-free bugs

Summary

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/6f2075ea883e5d773…
https://git.kernel.org/stable/c/3f40852d671072836…
https://git.kernel.org/stable/c/70faf9d9b6cc74418…
https://git.kernel.org/stable/c/5385af2f89bc352fb…
https://git.kernel.org/stable/c/d9ddfeb01fb95ffbb…
https://git.kernel.org/stable/c/cc6a7249842fceda7…
https://git.kernel.org/stable/c/8d924b262f3178a9b…
https://git.kernel.org/stable/c/cc67482c9e5f2c80d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < 6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < 3f40852d671072836fb7ae331a1f28a24223c4e8 (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < 70faf9d9b6cc74418716bbf76fe75bd2da10ad4a (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < 5385af2f89bc352fb70753ab41b2bb036190141f (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86 (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < cc6a7249842fceda7574ceb63275a2d5e99d2862 (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < 8d924b262f3178a9b17c17d4306a9f426c508bd9 (git) Affected: 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 , < cc67482c9e5f2c80d62f623bcc347c29f9f648e1 (git)
Linux	Linux	Affected: 3.2 Unaffected: 0 , < 3.2 (semver) Unaffected: 4.9.332 , ≤ 4.9.* (semver) Unaffected: 4.14.298 , ≤ 4.14.* (semver) Unaffected: 4.19.264 , ≤ 4.19.* (semver) Unaffected: 5.4.223 , ≤ 5.4.* (semver) Unaffected: 5.10.153 , ≤ 5.10.* (semver) Unaffected: 5.15.77 , ≤ 5.15.* (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/video/fbdev/smscufx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "3f40852d671072836fb7ae331a1f28a24223c4e8",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "70faf9d9b6cc74418716bbf76fe75bd2da10ad4a",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "5385af2f89bc352fb70753ab41b2bb036190141f",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "cc6a7249842fceda7574ceb63275a2d5e99d2862",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "8d924b262f3178a9b17c17d4306a9f426c508bd9",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            },
            {
              "lessThan": "cc67482c9e5f2c80d62f623bcc347c29f9f648e1",
              "status": "affected",
              "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/smscufx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.2"
            },
            {
              "lessThan": "3.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.332",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.298",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.264",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.223",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.153",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.77",
              "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": "4.9.332",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.298",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.264",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.223",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.153",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.77",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.7",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: smscufx: Fix several use-after-free bugs\n\nSeveral types of UAFs can occur when physically removing a USB device.\n\nAdds ufx_ops_destroy() function to .fb_destroy of fb_ops, and\nin this function, there is kref_put() that finally calls ufx_free().\n\nThis fix prevents multiple UAFs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:25:08.910Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f"
        },
        {
          "url": "https://git.kernel.org/stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/5385af2f89bc352fb70753ab41b2bb036190141f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1"
        }
      ],
      "title": "fbdev: smscufx: Fix several use-after-free bugs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50767",
    "datePublished": "2025-12-24T13:05:57.569Z",
    "dateReserved": "2025-12-24T13:02:21.546Z",
    "dateUpdated": "2026-05-11T19:25:08.910Z",
    "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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2022-50767

CVE-2022-50767 (GCVE-0-2022-50767)

Tags

Sightings

Nomenclature