{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a"
            },
            {
              "fixed": "2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f"
            },
            {
              "fixed": "fd51e810affa38d735d04261e673b2a5fe9c8665"
            },
            {
              "fixed": "f66c7904fb6f0e420a654bc90909e64a25d00896"
            },
            {
              "fixed": "65c484726e74013a2ec7ba67a34d87760ae8f390"
            },
            {
              "fixed": "29371f3cc83e2a92265b4768014a30b80234112f"
            },
            {
              "fixed": "e9edf9893cf26d060705c910a9b62d8cc96ed56a"
            },
            {
              "fixed": "6d3275fc4ed968938e1d556c344798046776668d"
            },
            {
              "fixed": "52bcb57a4e8a0865a76c587c2451906342ae1b2d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.5.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.90"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.32"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46214.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: fix accept queue count leak on transport mismatch\n\nvirtio_transport_recv_listen() calls sk_acceptq_added() before\nvsock_assign_transport(). If vsock_assign_transport() fails or\nselects a different transport, the error path returns without\ncalling sk_acceptq_removed(), permanently incrementing\nsk_ack_backlog.\n\nAfter approximately backlog+1 such failures, sk_acceptq_is_full()\nreturns true, causing the listener to reject all new connections.\n\nFix by moving sk_acceptq_added() to after the transport validation,\nmatching the pattern used by vmci_transport and hyperv_transport.",
  "id": "CVE-2026-46214",
  "modified": "2026-07-08T05:37:01.973901118Z",
  "published": "2026-05-28T09:40:31.245Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29371f3cc83e2a92265b4768014a30b80234112f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ea5d2c79edcc99c7dbe0bb7518f5e1ee2a2391f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52bcb57a4e8a0865a76c587c2451906342ae1b2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65c484726e74013a2ec7ba67a34d87760ae8f390"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d3275fc4ed968938e1d556c344798046776668d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9edf9893cf26d060705c910a9b62d8cc96ed56a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f66c7904fb6f0e420a654bc90909e64a25d00896"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd51e810affa38d735d04261e673b2a5fe9c8665"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46214.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46214"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "vsock/virtio: fix accept queue count leak on transport mismatch"
}