CVE-2026-64254

The CVE-2026-64254 issue concerns the Linux kernel NTB epf driver where, during teardown, pci_iounmap() could be invoked on the same iomem with an offset when BAR_PEER_SPAD and BAR_CONFIG share a PCI BAR. This caused a kernel warning such as vunmap() on a nonexistent VM area. The documented fix e...