{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e"
            },
            {
              "fixed": "79ffa99202c944467e28b13b513bf2998732edff"
            },
            {
              "fixed": "c9413b50204738fbc429bb86bf01353c393a6c28"
            },
            {
              "fixed": "37c61b3745129cbd682c557b51345828120972e5"
            },
            {
              "fixed": "ed246dd85ebf27c1f6b7897834d40786c0ca3006"
            },
            {
              "fixed": "6f46fc460e9316062bdcdf89199eb5d7a33da33b"
            },
            {
              "fixed": "75eec935444db4af2123e0491936f6e273d7ea00"
            },
            {
              "fixed": "384b4dae14277d369221d187e9b3af56c79d2e50"
            },
            {
              "fixed": "e0ba936287dfe9783426aac27e5fd76fe35b38c9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.7.0"
            },
            {
              "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": "6.6.152"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.104"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.45"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74669.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: clear IPv4 options after rebasing tunnel ICMP errors\n\nip_vs_in_icmp() rebases an skb from the outer ICMP packet to the\nquoted original request before passing it to icmp_send(). However,\nIPCB(skb)-\u003eopt still describes the outer IPv4 header.\n\nA timestamp option in the outer header can therefore leave an offset\nthat points into the quoted transport header after the rebase.\n__ip_options_echo() treats a byte at that stale location as the option\nlength and copies it into the fixed-size option storage on the\n__icmp_send() stack, causing a stack out-of-bounds write.\n\nClear the stale option metadata after resetting the network header.\nKeep the remaining control block fields, including the ingress\ninterface used by the ICMP response path.",
  "id": "CVE-2026-74669",
  "modified": "2026-08-27T11:31:13.724764456Z",
  "published": "2026-08-22T15:32:40.221Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37c61b3745129cbd682c557b51345828120972e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/384b4dae14277d369221d187e9b3af56c79d2e50"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f46fc460e9316062bdcdf89199eb5d7a33da33b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75eec935444db4af2123e0491936f6e273d7ea00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79ffa99202c944467e28b13b513bf2998732edff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9413b50204738fbc429bb86bf01353c393a6c28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0ba936287dfe9783426aac27e5fd76fe35b38c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ed246dd85ebf27c1f6b7897834d40786c0ca3006"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74669.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74669"
    },
    {
      "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:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ipvs: clear IPv4 options after rebasing tunnel ICMP errors"
}