CVE-2026-23136 (GCVE-0-2026-23136)
Vulnerability from cvelistv5
Published
2026-02-14 15:22
Modified
2026-04-03 13:32
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: libceph: reset sparse-read state in osd_fault() When a fault occurs, the connection is abandoned, reestablished, and any pending operations are retried. The OSD client tracks the progress of a sparse-read reply using a separate state machine, largely independent of the messenger's state. If a connection is lost mid-payload or the sparse-read state machine returns an error, the sparse-read state is not reset. The OSD client will then interpret the beginning of a new reply as the continuation of the old one. If this makes the sparse-read machinery enter a failure state, it may never recover, producing loops like: libceph: [0] got 0 extents libceph: data len 142248331 != extent len 0 libceph: osd0 (1)...:6801 socket error on read libceph: data len 142248331 != extent len 0 libceph: osd0 (1)...:6801 socket error on read Therefore, reset the sparse-read state in osd_fault(), ensuring retries start from a clean state.
References
Impacted products
Vendor Product Version
Linux Linux Version: f628d799972799023d32c2542bb2639eb8c4f84e
Version: f628d799972799023d32c2542bb2639eb8c4f84e
Version: f628d799972799023d32c2542bb2639eb8c4f84e
Version: f628d799972799023d32c2542bb2639eb8c4f84e
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{
  "containers": {
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          "programFiles": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: reset sparse-read state in osd_fault()\n\nWhen a fault occurs, the connection is abandoned, reestablished, and any\npending operations are retried. The OSD client tracks the progress of a\nsparse-read reply using a separate state machine, largely independent of\nthe messenger\u0027s state.\n\nIf a connection is lost mid-payload or the sparse-read state machine\nreturns an error, the sparse-read state is not reset. The OSD client\nwill then interpret the beginning of a new reply as the continuation of\nthe old one. If this makes the sparse-read machinery enter a failure\nstate, it may never recover, producing loops like:\n\n  libceph:  [0] got 0 extents\n  libceph: data len 142248331 != extent len 0\n  libceph: osd0 (1)...:6801 socket error on read\n  libceph: data len 142248331 != extent len 0\n  libceph: osd0 (1)...:6801 socket error on read\n\nTherefore, reset the sparse-read state in osd_fault(), ensuring retries\nstart from a clean state."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      "providerMetadata": {
        "dateUpdated": "2026-04-03T13:32:02.699Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/90a60fe61908afa0eaf7f8fcf1421b9b50e5f7ff"
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          "url": "https://git.kernel.org/stable/c/e94075e950a6598e710b9f7dffea5aa388f40313"
        },
        {
          "url": "https://git.kernel.org/stable/c/10b7c72810364226f7b27916ea3e2a4f870bc04b"
        },
        {
          "url": "https://git.kernel.org/stable/c/11194b416ef95012c2cfe5f546d71af07b639e93"
        }
      ],
      "title": "libceph: reset sparse-read state in osd_fault()",
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  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23136",
    "datePublished": "2026-02-14T15:22:21.952Z",
    "dateReserved": "2026-01-13T15:37:45.971Z",
    "dateUpdated": "2026-04-03T13:32:02.699Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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