net: bridge: vlan: fix memory leak in __allowed_ingress

{
  "id": "f8b62339954a6ded6a2cb53fd70350f4162b0130d051935d94a4d7a444a192a5",
  "url": "https://osv.dev/vulnerability/CVE-2022-48748",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: bridge: vlan: fix memory leak in __allowed_ingress",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in __allowed_ingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.",
    "evidence": "osv:CVE-2022-48748",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.96",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.16.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-48748",
      "aliases": [
        "CVE-2022-48748"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "c5e216e880fa6f2cd9d4a6541269377657163098"
                },
                {
                  "fixed": "14be8d448fca6fe7b2a413831eedd55aef6c6511"
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                {
                  "fixed": "fd20d9738395cf8e27d0a17eba34169699fccdff"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48748.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.6.0"
                },
                {
                  "fixed": "5.10.96"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.19"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.16.5"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48748.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.511315599Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511",
        "https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797",
        "https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098",
        "https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48748.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-48748",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48748.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-48748",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517719,
  "published_at": "2024-06-20T11:13:30.612+00:00"
}