CVE-2026-98078 (GCVE-0-2026-98078)
Vulnerability from cvelistv5
Published
2026-09-25 10:24
Modified
2026-10-19 09:13
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
Impacted products
Vendor Product Version
Linux Linux Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
Version: 986a075795339c5ea1122ce9290dfd5504252eb0
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{
  "containers": {
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          "programFiles": [
            "net/netfilter/ipvs/ip_vs_sync.c"
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      ],
      "cpeApplicability": [
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      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:13:27.823Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/ae38b2ae16f709c0193e1b4340bde26ef3e2687d"
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          "url": "https://git.kernel.org/stable/c/bbc68ba258a4eb0a2ca3b3a105550801aa8b00b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/f487b5788f15c6c32a219ed1480d25c93fc18d30"
        },
        {
          "url": "https://git.kernel.org/stable/c/677ff8ab30a663cde984d8afe86465fd0d81aeef"
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        {
          "url": "https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec"
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          "url": "https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c"
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        {
          "url": "https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1"
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      ],
      "title": "ipvs: fix reversed sequence option serialization",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98078",
    "datePublished": "2026-09-25T10:24:16.294Z",
    "dateReserved": "2026-09-25T10:19:56.074Z",
    "dateUpdated": "2026-10-19T09:13:27.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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