CVE-2025-40330
bnxt_en: Shutdown FW DMA in bnxt_shutdown()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 9, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
24d694aec139e9e0a31c60993db79bd8ad575afe < 1a8a15c3f71d1199d510ccba4bc201cbd2204048 24d694aec139e9e0a31c60993db79bd8ad575afe < bc7208ca805ae6062f353a4753467d913d963bc6
Linux / Linux
6.13