{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0fabd2aa199faeb8754aee94658f2c48ccb2c8c3"
            },
            {
              "fixed": "ea777dc90ab37e64fa4b92f6fcf3b5edcef5e058"
            },
            {
              "fixed": "f6143ae109df56d51d5536e813deb19eee7a6205"
            },
            {
              "fixed": "58108f05b0502448f6bb612ee2eccc63bd6449cb"
            },
            {
              "fixed": "16d464013ec2267b00a83f4bfbb97b3ecc63bfa7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.1.0"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.56"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98793.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bpf: reject invalid NAT manipulation types\n\nAs bpf_ct_set_nat_info() is not validating the NAT manipulation type a\nwrong value can be passed directly to nf_nat_setup_info(). This triggers\nthe WARN_ON() at nf_nat_setup_info() and if panic_on_warn isn't set,\nthen IPS_SRC_NAT_DONE is set without adding nat_bysource and conntrack\ncleanup tries to unlink an uninitialized hlist node.\n\nFix this by checking that NAT manipulation type is correct before\ncalling nf_nat_setup_info(). In addition, if the WARN_ON is hit, return\nNF_DROP instead of continuing with the processing to avoid similar\nsituations in the future.",
  "id": "CVE-2026-98793",
  "modified": "2026-10-20T02:30:19.746065054Z",
  "published": "2026-10-18T15:48:33.555Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16d464013ec2267b00a83f4bfbb97b3ecc63bfa7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58108f05b0502448f6bb612ee2eccc63bd6449cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea777dc90ab37e64fa4b92f6fcf3b5edcef5e058"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6143ae109df56d51d5536e813deb19eee7a6205"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98793.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98793"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "netfilter: bpf: reject invalid NAT manipulation types"
}