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CVE-2025-37802

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"

wait_event_timeout() will set the state of the current task to TASK_UNINTERRUPTIBLE, before doing the condition check. This means that ksmbd_durable_scavenger_alive() will try to acquire the mutex while already in a sleeping state. The scheduler warns us by giving the following warning:

mutex lock is not needed in ksmbd_durable_scavenger_alive().

Detalles técnicos trazas, registros y código del informe original
do not call blocking ops when !TASK_RUNNING; state=2 set at
 [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0
WARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-37802",
  "cveTags": [],
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        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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          "programFiles": [
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              "version": "5.15"
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              "version": "0",
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  "published": "2025-05-08T07:15:51.363",
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  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-667"
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      ]
    }
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix WARNING \"do not call blocking ops when !TASK_RUNNING\"\n\nwait_event_timeout() will set the state of the current\ntask to TASK_UNINTERRUPTIBLE, before doing the condition check. This\nmeans that ksmbd_durable_scavenger_alive() will try to acquire the mutex\nwhile already in a sleeping state. The scheduler warns us by giving\nthe following warning:\n\ndo not call blocking ops when !TASK_RUNNING; state=2 set at\n [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0\nWARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160\n\nmutex lock is not needed in ksmbd_durable_scavenger_alive()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: corrección de la ADVERTENCIA \"no llamar a operaciones de bloqueo cuando !TASK_RUNNING\" wait_event_timeout() establecerá el estado de la tarea actual en TASK_UNINTERRUPTIBLE antes de realizar la comprobación de condición. Esto significa que ksmbd_durable_scavenger_alive() intentará adquirir el mutex mientras ya está en estado de suspensión. El programador nos advierte con la siguiente advertencia: no llamar a operaciones de bloqueo cuando !TASK_RUNNING; estado=2 establecido en [&lt;0000000061515a6f&gt;] prepare_to_wait_event+0x9f/0x6c0 ADVERTENCIA: CPU: 2 PID: 4147 en kernel/sched/core.c:10099 __might_sleep+0x12f/0x160 El bloqueo mutex no es necesario en ksmbd_durable_scavenger_alive()."
    }
  ],
  "lastModified": "2026-09-14T12:17:35.833",
  "configurations": [
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