{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "84601d6ee68ae820dec97450934797046d62db4b"
            },
            {
              "fixed": "d016c216bc75c45128160593a77b864a04dbe7c0"
            },
            {
              "fixed": "cb2bf5efdb02a2a59faf603604a1066e8266f349"
            },
            {
              "fixed": "c25e0dec366ae99b7264324ce3c7cbaea34691f9"
            },
            {
              "fixed": "54244d54a971c26a0cd0a9073460ff71f3c51b32"
            },
            {
              "fixed": "24f90fa3994b992d1a09003a3db2599330a5232a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.4.0"
            },
            {
              "fixed": "6.6.130"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.78"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.20"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23412.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bpf: defer hook memory release until rcu readers are done\n\nYiming Qian reports UaF when concurrent process is dumping hooks via\nnfnetlink_hooks:\n\nBUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0\nRead of size 8 at addr ffff888003edbf88 by task poc/79\nCall Trace:\n \u003cTASK\u003e\n nfnl_hook_dump_one.isra.0+0xe71/0x10f0\n netlink_dump+0x554/0x12b0\n nfnl_hook_get+0x176/0x230\n [..]\n\nDefer release until after concurrent readers have completed.",
  "id": "CVE-2026-23412",
  "modified": "2026-07-15T01:48:54.791743647Z",
  "published": "2026-04-02T11:40:53.528Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24f90fa3994b992d1a09003a3db2599330a5232a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54244d54a971c26a0cd0a9073460ff71f3c51b32"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c25e0dec366ae99b7264324ce3c7cbaea34691f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb2bf5efdb02a2a59faf603604a1066e8266f349"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d016c216bc75c45128160593a77b864a04dbe7c0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23412.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23412"
    },
    {
      "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: bpf: defer hook memory release until rcu readers are done"
}