{"id":"CVE-2025-40330","title":"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","summary":"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) th…","severity":"none","published":"2025-12-09","updated":"2026-10-14","sourceUpdated":"2026-10-14T22:10:00.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40330","references":[{"url":"https://git.kernel.org/stable/c/1a8a15c3f71d1199d510ccba4bc201cbd2204048","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc7208ca805ae6062f353a4753467d913d963bc6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00217,"epssPercentile":0.11304,"ingestedAt":"2026-10-14T23:00:02.030Z","slug":"CVE-2025-40330","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}