netfilter: nf_conntrack_expect: skip expectations in other netns via proc

{
  "id": "67d025688a855f14fc413af2477be70e8aa56480009ad62df5ba1b151b481ee1",
  "url": "https://osv.dev/vulnerability/CVE-2026-31496",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "netfilter: nf_conntrack_expect: skip expectations in other netns via proc",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_expect: skip expectations in other netns via proc Skip expectations that do not reside in this netns. Similar to e77e6ff502ea (\"netfilter: conntrack: do not dump other netns's conntrack entries via proc\").",
    "evidence": "osv:CVE-2026-31496",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.168",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.131",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.80",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.21",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-31496",
      "aliases": [
        "CVE-2026-31496"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9b03f38d0487f3908696242286d934c9b38f9d2a"
                },
                {
                  "fixed": "2028405ea6987b4448784e439413202cfe19f43f"
                },
                {
                  "fixed": "168145c87444619e3e649322bbe7719ecd00d411"
                },
                {
                  "fixed": "dcfcd95b3ae7683e8ae55c92284b3430ce614bc7"
                },
                {
                  "fixed": "9ca8c7452493d915f9bbf2f39331e6c583d07a23"
                },
                {
                  "fixed": "3265ad619987cb551edaf797ed056d80ac450225"
                },
                {
                  "fixed": "3db5647984de03d9cae0dcddb509b058351f0ee4"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31496.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.28"
                },
                {
                  "fixed": "6.1.168"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.131"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.80"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.21"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.11"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31496.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.219093462Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-019113.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-457936.html",
        "https://git.kernel.org/stable/c/168145c87444619e3e649322bbe7719ecd00d411",
        "https://git.kernel.org/stable/c/2028405ea6987b4448784e439413202cfe19f43f",
        "https://git.kernel.org/stable/c/3265ad619987cb551edaf797ed056d80ac450225",
        "https://git.kernel.org/stable/c/3db5647984de03d9cae0dcddb509b058351f0ee4",
        "https://git.kernel.org/stable/c/9ca8c7452493d915f9bbf2f39331e6c583d07a23",
        "https://git.kernel.org/stable/c/dcfcd95b3ae7683e8ae55c92284b3430ce614bc7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31496.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-31496",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31496.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31496",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 509759,
  "published_at": "2026-04-22T13:54:18.287+00:00"
}