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CVE-2025-37895

Estado: AnalizadaMedia (5.5)—

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

bnxt_en: Fix error handling path in bnxt_init_chip()

WARN_ON() is triggered in __flush_work() if bnxt_init_chip() fails because we call cancel_work_sync() on dim work that has not been initialized.

The driver relies on the BNXT_STATE_NAPI_DISABLED bit to check if dim work has already been cancelled. But in the bnxt_open() path, BNXT_STATE_NAPI_DISABLED is not set and this causes the error path to think that it needs to cancel the uninitalized dim work. Fix it by setting BNXT_STATE_NAPI_DISABLED during initialization. The bit will be cleared when we enable NAPI and initialize dim work.

Detalles técnicos trazas, registros y código del informe original
WARNING: CPU: 37 PID: 5223 at kernel/workqueue.c:4201 __flush_work.isra.0+0x212/0x230

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-2025-37895",
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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          "programFiles": [
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          "programFiles": [
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  "published": "2025-05-20T16:15:25.860",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Analyzed",
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix error handling path in bnxt_init_chip()\n\nWARN_ON() is triggered in __flush_work() if bnxt_init_chip() fails\nbecause we call cancel_work_sync() on dim work that has not been\ninitialized.\n\nWARNING: CPU: 37 PID: 5223 at kernel/workqueue.c:4201 __flush_work.isra.0+0x212/0x230\n\nThe driver relies on the BNXT_STATE_NAPI_DISABLED bit to check if dim\nwork has already been cancelled.  But in the bnxt_open() path,\nBNXT_STATE_NAPI_DISABLED is not set and this causes the error\npath to think that it needs to cancel the uninitalized dim work.\nFix it by setting BNXT_STATE_NAPI_DISABLED during initialization.\nThe bit will be cleared when we enable NAPI and initialize dim work."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bnxt_en: Corregir la ruta de manejo de errores en bnxt_init_chip() WARN_ON() se activa en __flush_work() si bnxt_init_chip() falla porque llamamos a cancel_work_sync() en el trabajo de atenuación que no se ha inicializado. ADVERTENCIA: CPU: 37 PID: 5223 en kernel/workqueue.c:4201 __flush_work.isra.0+0x212/0x230 El controlador se basa en el bit BNXT_STATE_NAPI_DISABLED para comprobar si el trabajo de atenuación ya se ha cancelado. Pero en la ruta bnxt_open(), BNXT_STATE_NAPI_DISABLED no está configurado y esto hace que la ruta de error piense que necesita cancelar el trabajo de atenuación no inicializado. Corríjalo configurando BNXT_STATE_NAPI_DISABLED durante la inicialización. El bit se borrará cuando habilitemos NAPI e inicialicemos el trabajo de atenuación."
    }
  ],
  "lastModified": "2026-06-17T09:15:39.220",
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