In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epfntbepcdestroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allowlink fails or when .droplink is performed. Remove the helper. Also drop pciepcput(). EPC device refcounting is tied to configfs EPC group lifetime, and pciepcput() in the .droplink path is sufficient.