netfilter: nft_flow_offload: reset dst in route object after setting up flow

{
  "id": "7d2a965d9eb2ec4c45947a7467c520bcc6daea0c9b4b4ead567ce80fc0239b00",
  "url": "https://osv.dev/vulnerability/CVE-2024-27403",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "netfilter: nft_flow_offload: reset dst in route object after setting up flow",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_flow_offload: reset dst in route object after setting up flow dst is transferred to the flow object, route object does not own it anymore. Reset dst in route object, otherwise if flow_offload_add() fails, error path releases dst twice, leading to a refcount underflow.",
    "evidence": "osv:CVE-2024-27403",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.150",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.80",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.7.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-27403",
      "aliases": [
        "CVE-2024-27403"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a3c90f7a2323b331ae816d5b0633e68148e25d04"
                },
                {
                  "fixed": "4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c"
                },
                {
                  "fixed": "012df10717da02367aaf92c65f9c89db206c15f4"
                },
                {
                  "fixed": "558b00a30e05753a62ecc7e05e939ca8f0241148"
                },
                {
                  "fixed": "670548c8db44d76e40e1dfc06812bca36a61e9ae"
                },
                {
                  "fixed": "9e0f0430389be7696396c62f037be4bf72cf93e3"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27403.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.16.0"
                },
                {
                  "fixed": "5.15.150"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.80"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.19"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.7.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27403.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.468127762Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/012df10717da02367aaf92c65f9c89db206c15f4",
        "https://git.kernel.org/stable/c/4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c",
        "https://git.kernel.org/stable/c/558b00a30e05753a62ecc7e05e939ca8f0241148",
        "https://git.kernel.org/stable/c/670548c8db44d76e40e1dfc06812bca36a61e9ae",
        "https://git.kernel.org/stable/c/9e0f0430389be7696396c62f037be4bf72cf93e3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27403.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-27403",
        "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/2024/27xxx/CVE-2024-27403.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-27403",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490814,
  "published_at": "2024-05-17T11:40:17.992+00:00"
}