CVE-2026-31644 net: lan966x: fix use-after-free and leak in lan966x_fdma_reload()

In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix use-after-free and leak in lan966xfdmareload When lan966xfdmareload fails to allocate new RX buffers, the restore path restarts DMA using old descriptors whose pages were already freed via lan966xfdmarxfreepages...