CVE-2025-40330
N/A
N/A
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 24d694aec139e9e0a31c60993db79bd8ad575afe < 1a8a15c3f71d1199d510ccba4bc201cbd2204048 | affected |
| Linux | Linux | 24d694aec139e9e0a31c60993db79bd8ad575afe < bc7208ca805ae6062f353a4753467d913d963bc6 | affected |
| Linux | Linux | 6.13 | affected |
| Linux | Linux | 0 < 6.13 | unaffected |
| Linux | Linux | 6.17.8 <= 6.17.* | unaffected |
| Linux | Linux | 6.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/1a8a15c3f71d1199d510ccba4bc201cbd2204048
- https://git.kernel.org/stable/c/bc7208ca805ae6062f353a4753467d913d963bc6
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