{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8f840e47f190cbe61a96945c13e9551048d42cef"
            },
            {
              "fixed": "b453e00da1211e997b82743d28af7714c59c05c8"
            },
            {
              "fixed": "dfea32dd76f390e3155177b0038cc47b01386198"
            },
            {
              "fixed": "80f48523a0fe42db2e7375dff4e38a25c117090a"
            },
            {
              "fixed": "546221b86ceeba0d8fec92d46a0604bb7b62be07"
            },
            {
              "fixed": "09e722030e8148ba4ed1e42c6b2ea57bda9f9895"
            },
            {
              "fixed": "4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0"
            },
            {
              "fixed": "6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75"
            },
            {
              "fixed": "bd0e9289e2642f6a5c54faad304ce0f41e926d22"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.7.0"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.151"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74469.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: prevent peer transport count overflow\n\nsctp_assoc_add_peer() increments the association's 16-bit transport_count\nfor every new unique peer. Adding the 65,536th transport wraps the count to\nzero.\n\nSCTP sock_diag uses transport_count to reserve the INET_DIAG_PEERS payload,\nthen copies one sockaddr_storage for every entry in transport_addr_list.\nAfter the wrap, a diagnostic dump reserves an empty payload and writes\n8 MiB of peer addresses past the skb tail.\n\nReject a new unique peer when transport_count has reached U16_MAX. Perform\nthe check after the existing-peer lookup so a duplicate address continues\nto return its existing transport at the limit.",
  "id": "CVE-2026-74469",
  "modified": "2026-08-21T03:30:37.932025061Z",
  "published": "2026-08-15T12:27:06.873Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09e722030e8148ba4ed1e42c6b2ea57bda9f9895"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ba5bf7ed50f235ea4581de8e7a0002f4ed287b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/546221b86ceeba0d8fec92d46a0604bb7b62be07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6201cd1d70f1670c5b31ac506e7ab2fa7b8e7f75"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80f48523a0fe42db2e7375dff4e38a25c117090a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b453e00da1211e997b82743d28af7714c59c05c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd0e9289e2642f6a5c54faad304ce0f41e926d22"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfea32dd76f390e3155177b0038cc47b01386198"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74469.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74469"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "sctp: prevent peer transport count overflow"
}