rxrpc: Fix re-decryption of RESPONSE packets

{
  "id": "750c96721fd973d73152c29916c8d2d81fac3414c8db8ca07023308b1ac3ea58",
  "url": "https://osv.dev/vulnerability/CVE-2026-45988",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "rxrpc: Fix re-decryption of RESPONSE packets",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix re-decryption of RESPONSE packets If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get requeued for a retry. Fix this by just discarding the packet; we will send another CHALLENGE packet and thereby elicit a further response. Similarly, discard an incoming CHALLENGE packet if we get an error whilst generating a RESPONSE; the server will send another CHALLENGE.",
    "evidence": "osv:CVE-2026-45988",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.140",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.86",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.27",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-45988",
      "aliases": [
        "CVE-2026-45988"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "fixed": "d61482be4aae1835b78875761206241835a7510e"
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                  "fixed": "7b89868305052b94a91b708c462bc2281fa42a4a"
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                  "fixed": "76cb9a2d252274adfae6e293a292434631a7d472"
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                {
                  "fixed": "0422e7a4883f25101903f3e8105c0808aa5f4ce9"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45988.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                {
                  "introduced": "2.6.22"
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                  "fixed": "6.6.140"
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            {
              "type": "ECOSYSTEM",
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                  "fixed": "6.18.27"
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              "type": "ECOSYSTEM",
              "events": [
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45988.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.152267500Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9",
        "https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472",
        "https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a",
        "https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e",
        "https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45988.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-45988",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45988.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-45988",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490724,
  "published_at": "2026-05-27T12:55:39.74+00:00"
}