CVE-2026-98322 (GCVE-0-2026-98322)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46
VLAI
Title
netfilter: nft_nat: fully initialise new_addr in netmap setup
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_nat: fully initialise new_addr in netmap setup nft_nat_setup_netmap() builds the mapped address in an on-stack union nf_inet_addr. For an IPv4 mapping it writes only the 4-byte .ip member and the loop runs a single 32-bit iteration, but it then copies the whole 16-byte union into range->min_addr and range->max_addr, so the upper 12 bytes reach nf_nat_setup_info() uninitialised. KMSAN reports an uninit-value in nf_nat_setup_info() reached from nft_nat_eval(). The IPv6 path fills all 16 bytes and is not affected. Zero-initialise new_addr.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6667 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < 29365695842db0a97b701a43a09fad1b4f7ecf3e (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < 7b9380c38c2fd2189416fa602bdbc5c8523b84b2 (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < eb2030137dba3b59cbb5057a33af70488d6bc231 (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < e4982c489ee359162eee3ece1fb36082648464a5 (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < 161f5860c92a8ec80b6bdff16e79d70dcd8afc5a (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < 0ce42c7b84032335abff9eac43762e4ca8224451 (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < 1c43f5db482f74b41987c39c9c375a5e767556eb (git)
Affected: 3ff7ddb1353da9b535e65702704cbadea1da9a00 , < d313499df66159b4b7971d760d16729598ab7e5a (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "dateReserved": "2026-09-25T10:25:14.340Z",
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      "current_release_date": "2026-10-10T07:02:06+00:00",
      "cve": "CVE-2026-98322",
      "id": "CVE-2026-98322",
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      "product_status:known_affected": "186",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nft_nat: fully initialise new_addr in netmap setup",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98322.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-07T00:00:40Z",
      "cve": "CVE-2026-98322",
      "id": "CVE-2026-98322",
      "initial_release_date": "2026-10-07T00:00:40Z",
      "product_status:known_affected": "230",
      "product_status:known_not_affected": "117",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-98322",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98322.json",
      "version": "2"
    }
  }
}



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