CVE-2026-53297

In the Linux kernel, the following vulnerability has been resolved:

net: mana: Guard mana_remove against double invocation

If PM resume fails (e.g., mana_attach() returns an error), mana_probe()

calls mana_remove(), which tears down the device and sets

gd->gdma_context = NULL and gd->driver_data = NULL.

However, a failed resume callback does not automatically unbind the

driver. When the device is eventually unbound, mana_remove() is invoked

a second time. Without a NULL check, it dereferences gc->dev with

gc == NULL, causing a kernel panic.

Add an early return if gdma_context or driver_data is NULL so the second

invocation is harmless. Move the dev = gc->dev assignment after the

guard so it cannot dereference NULL.