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 54/100 over 6633 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": {
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      "affected": [
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
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                  "vulnerable": true
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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": [
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          "url": "https://git.kernel.org/stable/c/1a8a15c3f71d1199d510ccba4bc201cbd2204048"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc7208ca805ae6062f353a4753467d913d963bc6"
        }
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      "title": "bnxt_en: Shutdown FW DMA in bnxt_shutdown()",
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  "cveMetadata": {
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    "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"
  },
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      "date": "2026-10-09",
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        "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"
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      "cve": "CVE-2025-40330",
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      "product_status:known_affected": "184",
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      "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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      "current_release_date": "2026-10-09T00:53:17Z",
      "cve": "CVE-2025-40330",
      "id": "CVE-2025-40330",
      "initial_release_date": "2025-12-10T00:26:44Z",
      "product_status:known_affected": "396",
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      "product_status:recommended": "265",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-40330",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-40330.json",
      "version": "37"
    }
  }
}



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