CVE-2025-40330 (GCVE-0-2025-40330)

Vulnerability from cvelistv5 – Published: 2025-12-09 04:09 – Updated: 2026-05-11 21:47
VLAI
Title
bnxt_en: Shutdown FW DMA in bnxt_shutdown()
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Shutdown FW DMA in bnxt_shutdown() The netif_close() call in bnxt_shutdown() only stops packet DMA. There may be FW DMA for trace logging (recently added) that will continue. If we kexec to a new kernel, the DMA will corrupt memory in the new kernel. Add bnxt_hwrm_func_drv_unrgtr() to unregister the driver from the FW. This will stop the FW DMA. In case the call fails, call pcie_flr() to reset the function and stop the DMA.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 24d694aec139e9e0a31c60993db79bd8ad575afe , < 1a8a15c3f71d1199d510ccba4bc201cbd2204048 (git)
Affected: 24d694aec139e9e0a31c60993db79bd8ad575afe , < bc7208ca805ae6062f353a4753467d913d963bc6 (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
          ],
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              "versionType": "git"
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          "vendor": "Linux",
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            }
          ]
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      ],
      "cpeApplicability": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Shutdown FW DMA in bnxt_shutdown()\n\nThe netif_close() call in bnxt_shutdown() only stops packet DMA.  There\nmay be FW DMA for trace logging (recently added) that will continue.  If\nwe kexec to a new kernel, the DMA will corrupt memory in the new kernel.\n\nAdd bnxt_hwrm_func_drv_unrgtr() to unregister the driver from the FW.\nThis will stop the FW DMA.  In case the call fails, call pcie_flr() to\nreset the function and stop the DMA."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:47:16.941Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1a8a15c3f71d1199d510ccba4bc201cbd2204048"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc7208ca805ae6062f353a4753467d913d963bc6"
        }
      ],
      "title": "bnxt_en: Shutdown FW DMA in bnxt_shutdown()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40330",
    "datePublished": "2025-12-09T04:09:47.251Z",
    "dateReserved": "2025-04-16T07:20:57.186Z",
    "dateUpdated": "2026-05-11T21:47:16.941Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-40330",
      "date": "2026-11-02",
      "epss": "0.00217",
      "percentile": "0.12202"
    },
    "nvd": {
      "cve": {
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                "product": "Linux",
                "programFiles": [
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                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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                    "versionType": "git"
                  },
                  {
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                    "status": "affected",
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                    "versionType": "git"
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                "defaultStatus": "affected",
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                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.13"
                  },
                  {
                    "lessThan": "6.13",
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                    "version": "0",
                    "versionType": "semver"
                  },
                  {
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                    "version": "6.17.8",
                    "versionType": "semver"
                  },
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                    "status": "unaffected",
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                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Shutdown FW DMA in bnxt_shutdown()\n\nThe netif_close() call in bnxt_shutdown() only stops packet DMA.  There\nmay be FW DMA for trace logging (recently added) that will continue.  If\nwe kexec to a new kernel, the DMA will corrupt memory in the new kernel.\n\nAdd bnxt_hwrm_func_drv_unrgtr() to unregister the driver from the FW.\nThis will stop the FW DMA.  In case the call fails, call pcie_flr() to\nreset the function and stop the DMA."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbnxt_en: Apagar el DMA del FW en bnxt_shutdown()\n\nLa llamada a netif_close() en bnxt_shutdown() solo detiene el DMA de paquetes. Puede haber DMA del FW para el registro de trazas (a\u00f1adido recientemente) que continuar\u00e1. Si hacemos kexec a un nuevo kernel, el DMA corromper\u00e1 la memoria en el nuevo kernel.\n\nA\u00f1adir bnxt_hwrm_func_drv_unrgtr() para anular el registro del controlador del FW. Esto detendr\u00e1 el DMA del FW. En caso de que la llamada falle, llamar a pcie_flr() para reiniciar la funci\u00f3n y detener el DMA."
          }
        ],
        "id": "CVE-2025-40330",
        "lastModified": "2026-10-14T22:10:00.210",
        "metrics": {},
        "published": "2025-12-09T16:17:43.133",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/1a8a15c3f71d1199d510ccba4bc201cbd2204048"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/bc7208ca805ae6062f353a4753467d913d963bc6"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T02:59:39+00:00",
      "cve": "CVE-2025-40330",
      "id": "CVE-2025-40330",
      "initial_release_date": "2025-12-09T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bnxt_en: Shutdown FW DMA in bnxt_shutdown()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40330.json",
      "version": "3"
    }
  }
}



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