{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a331b78a552551d0e404e58e6390b1c828d6af8f"
            },
            {
              "fixed": "6d2a95c6890577cc3eab2b20018e16850d7fb094"
            },
            {
              "fixed": "2041cdb078041611510fc189410bc70b29f688fb"
            },
            {
              "fixed": "b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.19"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43454.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix for duplicate device in netdev hooks\n\nWhen handling NETDEV_REGISTER notification, duplicate device\nregistration must be avoided since the device may have been added by\nnft_netdev_hook_alloc() already when creating the hook.",
  "id": "CVE-2026-43454",
  "modified": "2026-07-15T01:49:11.997965056Z",
  "published": "2026-05-08T14:22:18.719Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2041cdb078041611510fc189410bc70b29f688fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d2a95c6890577cc3eab2b20018e16850d7fb094"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43454.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43454"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "netfilter: nf_tables: Fix for duplicate device in netdev hooks"
}