{"id":"CVE-2026-98322","revision":"f322db735e46498f9b95122833c2dc2e","records":[{"revision":"f322db735e46498f9b95122833c2dc2e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98322","aliases":[],"title":"netfilter: nft_nat: fully initialise new_addr in netmap setup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_nat: fully initialise new_addr in netmap setup\n\nnft_nat_setup_netmap() builds the mapped address in an on-stack\nunion nf_inet_addr. For an IPv4 mapping it writes only the 4-byte .ip\nmember and the loop runs a single 32-bit iteration, but it then copies\nthe whole 16-byte union into range->min_addr and range->max_addr, so the\nupper 12 bytes reach nf_nat_setup_info() uninitialised.\n\nKMSAN reports an uninit-value in nf_nat_setup_info() reached from\nnft_nat_eval(). The IPv6 path fills all 16 bytes and is not affected.\n\nZero-initialise new_addr.","state":0,"publishedAt":"2026-10-06T08:46:16.346+00:00","modifiedAt":"2026-10-19T09:17:32.745+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/netfilter/nft_nat.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"29365695842db0a97b701a43a09fad1b4f7ecf3e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"7b9380c38c2fd2189416fa602bdbc5c8523b84b2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"eb2030137dba3b59cbb5057a33af70488d6bc231\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"e4982c489ee359162eee3ece1fb36082648464a5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"161f5860c92a8ec80b6bdff16e79d70dcd8afc5a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"0ce42c7b84032335abff9eac43762e4ca8224451\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"1c43f5db482f74b41987c39c9c375a5e767556eb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3ff7ddb1353da9b535e65702704cbadea1da9a00\",\n                            \"lessThan\": \"d313499df66159b4b7971d760d16729598ab7e5a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/netfilter/nft_nat.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/29365695842db0a97b701a43a09fad1b4f7ecf3e","https://git.kernel.org/stable/c/7b9380c38c2fd2189416fa602bdbc5c8523b84b2","https://git.kernel.org/stable/c/eb2030137dba3b59cbb5057a33af70488d6bc231","https://git.kernel.org/stable/c/e4982c489ee359162eee3ece1fb36082648464a5","https://git.kernel.org/stable/c/161f5860c92a8ec80b6bdff16e79d70dcd8afc5a","https://git.kernel.org/stable/c/0ce42c7b84032335abff9eac43762e4ca8224451","https://git.kernel.org/stable/c/1c43f5db482f74b41987c39c9c375a5e767556eb","https://git.kernel.org/stable/c/d313499df66159b4b7971d760d16729598ab7e5a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98322","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98322","identifiers":["CVE-2026-98322"]},"retained":false,"historicalAffected":[]}],"coverage":[]}