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CVE-2024-49891

Estado: ModificadaMedia (5.5)—

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

scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths

When the HBA is undergoing a reset or is handling an errata event, NULL ptr dereference crashes may occur in routines such as lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or lpfc_abort_handler().

Add NULL ptr checks before dereferencing hdwq pointers that may have been freed due to operations colliding with a reset or errata event handler.

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)

Mostrar
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  "id": "CVE-2024-49891",
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          "options": [
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              "technicalImpact": "partial"
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          "version": "2.0.3",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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          ],
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          ],
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_hbadisc.c",
            "drivers/scsi/lpfc/lpfc_scsi.c",
            "drivers/scsi/lpfc/lpfc_sli.c"
          ],
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  "published": "2024-10-21T18:15:11.657",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-476"
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      ]
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  ],
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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths\n\nWhen the HBA is undergoing a reset or is handling an errata event, NULL ptr\ndereference crashes may occur in routines such as\nlpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or\nlpfc_abort_handler().\n\nAdd NULL ptr checks before dereferencing hdwq pointers that may have been\nfreed due to operations colliding with a reset or errata event handler."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: lpfc: Validar punteros hdwq antes de desreferenciar en rutas de reinicio/errata Cuando el HBA está experimentando un reinicio o está manejando un evento de erratas, pueden ocurrir fallos de desreferencia de ptr NULL en rutinas como lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk() o lpfc_abort_handler(). Agregue verificaciones de ptr NULL antes de desreferenciar punteros hdwq que pueden haberse liberado debido a operaciones que colisionan con un controlador de eventos de reinicio o erratas."
    }
  ],
  "lastModified": "2026-06-17T08:00:40.560",
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}