{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "043d222f93ab8c76b56a3b315cd8692e35affb6c"
            },
            {
              "fixed": "26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9"
            },
            {
              "fixed": "793385c154771603b8671dd8338927221e9d8d78"
            },
            {
              "fixed": "2638a9c1521905bb5c5d1e95c8fbc09f79148ed7"
            },
            {
              "fixed": "60d9c0d6cdde5420d6483c921b16fe5465eb5238"
            },
            {
              "fixed": "d16e38fac09a47bfcf98c1ad65a1bb53f94540f5"
            },
            {
              "fixed": "aa308e9dbb9acb17cacdbbce9e4504f69bac8385"
            },
            {
              "fixed": "4fefc6156a162a9f50035c12091a5e5130c82c6e"
            },
            {
              "fixed": "aa8963fdce667a42fb7f0bdd2909fadcab02f9a8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.20.0"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46322.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntun: free page on build_skb failure in tun_xdp_one()\n\nWhen build_skb() fails in tun_xdp_one(), the function sets ret to\n-ENOMEM and jumps to the out label, which returns without freeing the\npage that vhost_net_build_xdp() allocated for the frame. As with the\nshort-frame rejection path, tun_sendmsg() discards the per-buffer error\nand still returns total_len, so vhost_tx_batch() takes the success path\nand never frees the page. Each build_skb() failure in a batch leaks one\npage-frag chunk.\n\nFree the page before taking the error path, matching the put_page() the\nother error exits of tun_xdp_one() already perform.",
  "id": "CVE-2026-46322",
  "modified": "2026-07-10T03:54:33.296591975Z",
  "published": "2026-06-09T12:11:14.776Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2638a9c1521905bb5c5d1e95c8fbc09f79148ed7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fefc6156a162a9f50035c12091a5e5130c82c6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60d9c0d6cdde5420d6483c921b16fe5465eb5238"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/793385c154771603b8671dd8338927221e9d8d78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa308e9dbb9acb17cacdbbce9e4504f69bac8385"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa8963fdce667a42fb7f0bdd2909fadcab02f9a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d16e38fac09a47bfcf98c1ad65a1bb53f94540f5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46322.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46322"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "tun: free page on build_skb failure in tun_xdp_one()"
}