FKIE_CVE-2025-40330

Vulnerability from fkie_nvd - Published: 2025-12-09 16:17 - Updated: 2026-06-17 09:21
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1a8a15c3f71d1199d510ccba4bc201cbd2204048
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bc7208ca805ae6062f353a4753467d913d963bc6
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1a8a15c3f71d1199d510ccba4bc201cbd2204048",
              "status": "affected",
              "version": "24d694aec139e9e0a31c60993db79bd8ad575afe",
              "versionType": "git"
            },
            {
              "lessThan": "bc7208ca805ae6062f353a4753467d913d963bc6",
              "status": "affected",
              "version": "24d694aec139e9e0a31c60993db79bd8ad575afe",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "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."
    }
  ],
  "id": "CVE-2025-40330",
  "lastModified": "2026-06-17T09:21:40.210",
  "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"
}


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