{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\n8021q: delete cleared egress QoS mappings\n\nvlan_dev_set_egress_priority() currently keeps cleared egress\npriority mappings in the hash as tombstones. Repeated set/clear cycles\nwith distinct skb priorities therefore accumulate mapping nodes until\ndevice teardown and leak memory.\n\nDelete mappings when vlan_prio is cleared instead of keeping tombstones.\nNow that the egress mapping lists are RCU protected, the node can be\nunlinked safely and freed after a grace period."
    }
  ],
  "id": "CVE-2026-46153",
  "lastModified": "2026-05-28T13:44:01.663",
  "metrics": {},
  "published": "2026-05-28T10:16:30.947",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7dddc74af369478ba7f9bc136d0fc1dc4570cb66"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a52e122c9e4d56ad9a03b32c915a199276d989c3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-46153"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:30Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\n8021q: delete cleared egress QoS mappings\n\nvlan_dev_set_egress_priority() currently keeps cleared egress\npriority mappings in the hash as tombstones. Repeated set/clear cycles\nwith distinct skb priorities therefore accumulate mapping nodes until\ndevice teardown and leak memory.\n\nDelete mappings when vlan_prio is cleared instead of keeping tombstones.\nNow that the egress mapping lists are RCU protected, the node can be\nunlinked safely and freed after a grace period.",
  "id": "GHSA-h2vh-mr24-cxmc",
  "modified": "2026-05-28T12:30:30Z",
  "published": "2026-05-28T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46153"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7dddc74af369478ba7f9bc136d0fc1dc4570cb66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a52e122c9e4d56ad9a03b32c915a199276d989c3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
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    "csaf_version": "2.0",
    "distribution": {
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        "url": "https://www.first.org/tlp/"
      }
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    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
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    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-46153 8021q: delete cleared egress QoS mappings - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46153.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "8021q: delete cleared egress QoS mappings",
    "tracking": {
      "current_release_date": "2026-05-29T01:07:40.000Z",
      "generator": {
        "date": "2026-05-29T07:23:45.803Z",
        "engine": {
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          "version": "1.0"
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      "id": "msrc_CVE-2026-46153",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-29T01:07:40.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
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  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
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              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
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        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-46153",
      "notes": [
        {
          "category": "general",
          "text": "Linux",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "under_investigation": [
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-46153 8021q: delete cleared egress QoS mappings - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46153.json"
        }
      ],
      "title": "8021q: delete cleared egress QoS mappings"
    }
  ]
}