CVE-2025-38411 (GCVE-0-2025-38411)
Vulnerability from cvelistv5
Published
2025-07-25 13:20
Modified
2025-07-28 04:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix double put of request If a netfs request finishes during the pause loop, it will have the ref that belongs to the IN_PROGRESS flag removed at that point - however, if it then goes to the final wait loop, that will *also* put the ref because it sees that the IN_PROGRESS flag is clear and incorrectly assumes that this happened when it called the collector. In fact, since IN_PROGRESS is clear, we shouldn't call the collector again since it's done all the cleanup, such as calling ->ki_complete(). Fix this by making netfs_collect_in_app() just return, indicating that we're done if IN_PROGRESS is removed.
References
Impacted products
Vendor Product Version
Linux Linux Version: 329ba1cb402ac328224965b8fc7a554a5150908e
Version: 2b1424cd131cfaba4cf7040473133d26cddac088
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/misc.c",
            "include/trace/events/netfs.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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          "vendor": "Linux",
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      ],
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                  "versionEndExcluding": "6.15.6",
                  "versionStartIncluding": "6.15.3",
                  "vulnerable": true
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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\nnetfs: Fix double put of request\n\nIf a netfs request finishes during the pause loop, it will have the ref\nthat belongs to the IN_PROGRESS flag removed at that point - however, if it\nthen goes to the final wait loop, that will *also* put the ref because it\nsees that the IN_PROGRESS flag is clear and incorrectly assumes that this\nhappened when it called the collector.\n\nIn fact, since IN_PROGRESS is clear, we shouldn\u0027t call the collector again\nsince it\u0027s done all the cleanup, such as calling -\u003eki_complete().\n\nFix this by making netfs_collect_in_app() just return, indicating that\nwe\u0027re done if IN_PROGRESS is removed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:21:23.680Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/d18facba5a5795ad44b2a00a052e3db2fa77ab12"
        },
        {
          "url": "https://git.kernel.org/stable/c/9df7b5ebead649b00bf9a53a798e4bf83a1318fd"
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      ],
      "title": "netfs: Fix double put of request",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38411",
    "datePublished": "2025-07-25T13:20:15.835Z",
    "dateReserved": "2025-04-16T04:51:24.013Z",
    "dateUpdated": "2025-07-28T04:21:23.680Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38411\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T14:15:32.790\",\"lastModified\":\"2025-07-25T15:29:19.837\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfs: Fix double put of request\\n\\nIf a netfs request finishes during the pause loop, it will have the ref\\nthat belongs to the IN_PROGRESS flag removed at that point - however, if it\\nthen goes to the final wait loop, that will *also* put the ref because it\\nsees that the IN_PROGRESS flag is clear and incorrectly assumes that this\\nhappened when it called the collector.\\n\\nIn fact, since IN_PROGRESS is clear, we shouldn\u0027t call the collector again\\nsince it\u0027s done all the cleanup, such as calling -\u003eki_complete().\\n\\nFix this by making netfs_collect_in_app() just return, indicating that\\nwe\u0027re done if IN_PROGRESS is removed.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfs: Corregir doble put de solicitud Si una solicitud netfs finaliza durante el bucle de pausa, tendr\u00e1 la referencia que pertenece al indicador IN_PROGRESS eliminada en ese punto; sin embargo, si luego va al bucle de espera final, eso *tambi\u00e9n* pondr\u00e1 la referencia porque ve que el indicador IN_PROGRESS est\u00e1 limpio y asume incorrectamente que esto sucedi\u00f3 cuando llam\u00f3 al recopilador. De hecho, como IN_PROGRESS est\u00e1 limpio, no deber\u00edamos volver a llamar al recopilador ya que ha hecho toda la limpieza, como llamar a -\u0026gt;ki_complete(). Corrija esto haciendo que netfs_collect_in_app() simplemente regrese, lo que indica que hemos terminado si se elimina IN_PROGRESS.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/9df7b5ebead649b00bf9a53a798e4bf83a1318fd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d18facba5a5795ad44b2a00a052e3db2fa77ab12\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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