Vulnerability-Lookup

GHSA-6JWX-QGW3-M69W

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:

net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path

If dsa_tag_8021q_setup() fails, for example due to the inability of the device to install a VLAN, the tag_8021q context of the switch will leak. Make sure it is freed on the error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50837"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:15:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path\n\nIf dsa_tag_8021q_setup() fails, for example due to the inability of the\ndevice to install a VLAN, the tag_8021q context of the switch will leak.\nMake sure it is freed on the error path.",
  "id": "GHSA-6jwx-qgw3-m69w",
  "modified": "2025-12-30T15:30:27Z",
  "published": "2025-12-30T15:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50837"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09f30f394e832ed09859b6a80fdd20668a9104ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/14ed46a13aba42a6ddd85de6f6274090df3586a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39691d51af99f80efb9e365f94b8e0c791fa1a2f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e095493091e850d5292ad01d8fbf5cde1d89ac53"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50837 (GCVE-0-2022-50837)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:10 – Updated: 2025-12-30 12:10

Title

net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path

Summary

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path If dsa_tag_8021q_setup() fails, for example due to the inability of the device to install a VLAN, the tag_8021q context of the switch will leak. Make sure it is freed on the error path.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/09f30f394e832ed09…
	https://git.kernel.org/stable/c/39691d51af99f80ef…
	https://git.kernel.org/stable/c/14ed46a13aba42a6d…
	https://git.kernel.org/stable/c/e095493091e850d52…

Impacted products

Vendor

Product

Version

Linux

Affected: 328621f6131f667c5c328bb72d45442fd76efb81 , < 09f30f394e832ed09859b6a80fdd20668a9104ff (git)
Affected: 328621f6131f667c5c328bb72d45442fd76efb81 , < 39691d51af99f80efb9e365f94b8e0c791fa1a2f (git)
Affected: 328621f6131f667c5c328bb72d45442fd76efb81 , < 14ed46a13aba42a6ddd85de6f6274090df3586a5 (git)
Affected: 328621f6131f667c5c328bb72d45442fd76efb81 , < e095493091e850d5292ad01d8fbf5cde1d89ac53 (git)

Linux

Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/dsa/tag_8021q.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "09f30f394e832ed09859b6a80fdd20668a9104ff",
              "status": "affected",
              "version": "328621f6131f667c5c328bb72d45442fd76efb81",
              "versionType": "git"
            },
            {
              "lessThan": "39691d51af99f80efb9e365f94b8e0c791fa1a2f",
              "status": "affected",
              "version": "328621f6131f667c5c328bb72d45442fd76efb81",
              "versionType": "git"
            },
            {
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              "version": "328621f6131f667c5c328bb72d45442fd76efb81",
              "versionType": "git"
            },
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "version": "5.15"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
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              "versionType": "semver"
            },
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              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path\n\nIf dsa_tag_8021q_setup() fails, for example due to the inability of the\ndevice to install a VLAN, the tag_8021q context of the switch will leak.\nMake sure it is freed on the error path."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:10:57.049Z",
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        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50837",
    "datePublished": "2025-12-30T12:10:57.049Z",
    "dateReserved": "2025-12-30T12:06:07.133Z",
    "dateUpdated": "2025-12-30T12:10:57.049Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

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-6JWX-QGW3-M69W

CVE-2022-50837 (GCVE-0-2022-50837)

Tags

Sightings

Nomenclature