CVE-2026-97596 (GCVE-0-2026-97596)
Vulnerability from cvelistv5
Published
2026-09-25 10:22
Modified
2026-10-19 09:10
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ipvs: reject invalid states in connection template sync records IPVS sync receivers validate protocol states before creating or updating a connection. For connection templates, however, they only log states outside the template state range and still store the value in the connection. A template can be returned by ordinary connection lookup. TCP and SCTP then use the invalid state as an index into their transition tables. Reject invalid template states in both sync protocol versions before looking up or modifying a connection. The version 1 path handles both IPv4 and IPv6 records.
References
Impacted products
Vendor Product Version
Linux Linux Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
Version: 275411430f892407b885be1de2548b2e632892c3
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/ipvs/ip_vs_sync.c"
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          "versions": [
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              "version": "0",
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            }
          ]
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: reject invalid states in connection template sync records\n\nIPVS sync receivers validate protocol states before creating or updating a\nconnection. For connection templates, however, they only log states outside\nthe template state range and still store the value in the connection.\n\nA template can be returned by ordinary connection lookup. TCP and SCTP then\nuse the invalid state as an index into their transition tables.\n\nReject invalid template states in both sync protocol versions before\nlooking up or modifying a connection. The version 1 path handles both\nIPv4 and IPv6 records."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:10:00.056Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5677e81ffdbfc1c03dcb427fb8b1c38289bed76d"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4eb339b442a0ffaa565779b975494a0a0664f18"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a8f15911352bb3cf4663aa02049c49c7f30e524"
        },
        {
          "url": "https://git.kernel.org/stable/c/652d9caa5ac925ab012834e325d77b9ed638d4fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc10dc4511e6e2e2b4098ee115c8e5639471f23d"
        },
        {
          "url": "https://git.kernel.org/stable/c/50c3f06222eafe9cca7ca51a0ef83311d7cab353"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c61f7d8e18a978aec2a16d9acd5f682f1c72476"
        },
        {
          "url": "https://git.kernel.org/stable/c/74cb39735b6cd0aff4b5584158f09376fd97aadf"
        }
      ],
      "title": "ipvs: reject invalid states in connection template sync records",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97596",
    "datePublished": "2026-09-25T10:22:11.784Z",
    "dateReserved": "2026-09-24T16:01:01.157Z",
    "dateUpdated": "2026-10-19T09:10:00.056Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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