FKIE_CVE-2026-98078

Vulnerability from fkie_nvd - Published: 2026-09-25 11:17 - Updated: 2026-09-25 11:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: ipvs: fix reversed sequence option serialization hton_seq() expects the host-order source first and the unaligned network-order destination second. The version 1 sync sender passes these arguments in reverse for both sequence blocks. This leaves 24 bytes of the kmalloc-backed message unwritten. It may disclose stale heap data and replace the live connection sequence state with values read from the buffer. Pass the connection sequence state as the source and the message payload as the destination for both blocks.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/ipvs/ip_vs_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec",
              "status": "affected",
              "version": "986a075795339c5ea1122ce9290dfd5504252eb0",
              "versionType": "git"
            },
            {
              "lessThan": "524599714558da83747c04952d378155c69f5b6b",
              "status": "affected",
              "version": "986a075795339c5ea1122ce9290dfd5504252eb0",
              "versionType": "git"
            },
            {
              "lessThan": "de6cc6ec7932bc530f2bb92005dac9123d50659c",
              "status": "affected",
              "version": "986a075795339c5ea1122ce9290dfd5504252eb0",
              "versionType": "git"
            },
            {
              "lessThan": "b04578b74f2d3755548fe9e829e3b2a6c6f966a1",
              "status": "affected",
              "version": "986a075795339c5ea1122ce9290dfd5504252eb0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/ipvs/ip_vs_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.39"
            },
            {
              "lessThan": "2.6.39",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: fix reversed sequence option serialization\n\nhton_seq() expects the host-order source first and the unaligned\nnetwork-order destination second. The version 1 sync sender passes these\narguments in reverse for both sequence blocks. This leaves 24 bytes of the\nkmalloc-backed message unwritten. It may disclose stale heap data and\nreplace the live connection sequence state with values read from the\nbuffer.\n\nPass the connection sequence state as the source and the message payload as\nthe destination for both blocks."
    }
  ],
  "id": "CVE-2026-98078",
  "lastModified": "2026-09-25T11:17:37.200",
  "metrics": {},
  "published": "2026-09-25T11:17:37.200",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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