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CVE-2026-23328

Estado: AnalizadaMedia (5.5)—

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

accel/amdxdna: Fix NULL pointer dereference of mgmt_chann

mgmt_chann may be set to NULL if the firmware returns an unexpected error in aie2_send_mgmt_msg_wait(). This can later lead to a NULL pointer dereference in aie2_hw_stop().

Fix this by introducing a dedicated helper to destroy mgmt_chann and by adding proper NULL checks before accessing it.

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-2026-23328",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "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"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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          "programFiles": [
            "drivers/accel/amdxdna/aie2_message.c",
            "drivers/accel/amdxdna/aie2_pci.c",
            "drivers/accel/amdxdna/aie2_pci.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/accel/amdxdna/aie2_message.c",
            "drivers/accel/amdxdna/aie2_pci.c",
            "drivers/accel/amdxdna/aie2_pci.h"
          ],
          "defaultStatus": "affected"
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      ]
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  ],
  "published": "2026-03-25T11:16:29.977",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/032ca7a9059c4ba6c329e0f1b442dab54dd9c3e5",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6270ee26e1edd862ea17e3eba148ca8fb2c99dc9",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix NULL pointer dereference of mgmt_chann\n\nmgmt_chann may be set to NULL if the firmware returns an unexpected\nerror in aie2_send_mgmt_msg_wait(). This can later lead to a NULL\npointer dereference in aie2_hw_stop().\n\nFix this by introducing a dedicated helper to destroy mgmt_chann\nand by adding proper NULL checks before accessing it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\naccel/amdxdna: Corrección de la desreferencia de puntero NULL de mgmt_chann\n\nmgmt_chann puede establecerse en NULL si el firmware devuelve un error inesperado en aie2_send_mgmt_msg_wait(). Esto puede llevar posteriormente a una desreferencia de puntero NULL en aie2_hw_stop().\n\nSe soluciona esto introduciendo una función auxiliar dedicada para destruir mgmt_chann y añadiendo comprobaciones de NULL adecuadas antes de acceder a él."
    }
  ],
  "lastModified": "2026-06-17T10:21:20.243",
  "configurations": [
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