CVE-2025-21988 (GCVE-0-2025-21988)
Vulnerability from cvelistv5
Published
2025-04-02 12:53
Modified
2025-05-04 07:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").
References
Impacted products
Vendor Product Version
Linux Linux Version: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e
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          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
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      "cpeApplicability": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/netfs/read_collect: add to next-\u003eprev_donated\n\nIf multiple subrequests donate data to the same \"next\" request\n(depending on the subrequest completion order), each of them would\noverwrite the `prev_donated` field, causing data corruption and a\nBUG() crash (\"Can\u0027t donate prior to front\")."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:26:46.489Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e"
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      ],
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21988",
    "datePublished": "2025-04-02T12:53:12.170Z",
    "dateReserved": "2024-12-29T08:45:45.800Z",
    "dateUpdated": "2025-05-04T07:26:46.489Z",
    "state": "PUBLISHED"
  },
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    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21988\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-02T13:15:43.317\",\"lastModified\":\"2025-04-02T14:58:07.527\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfs/netfs/read_collect: add to next-\u003eprev_donated\\n\\nIf multiple subrequests donate data to the same \\\"next\\\" request\\n(depending on the subrequest completion order), each of them would\\noverwrite the `prev_donated` field, causing data corruption and a\\nBUG() crash (\\\"Can\u0027t donate prior to front\\\").\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/netfs/read_collect: agregar a next-\u0026gt;prev_doned Si varias subsolicitudes donan datos a la misma solicitud \\\"siguiente\\\" (dependiendo del orden de finalizaci\u00f3n de las subsolicitudes), cada una de ellas sobrescribir\u00eda el campo `prev_doned`, lo que causar\u00eda corrupci\u00f3n de datos y un bloqueo de BUG() (\\\"No se puede donar antes del front\\\").\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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