CVE-2026-43056

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

net: mana: fix use-after-free in add_adev() error path

If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls

auxiliary_device_uninit(adev).

The auxiliary device has its release callback set to adev_release(),

which frees the containing struct mana_adev. Since adev is embedded in

struct mana_adev, the subsequent fall-through to init_fail and access

to adev->id may result in a use-after-free.

Fix this by saving the allocated auxiliary device id in a local

variable before calling auxiliary_device_add(), and use that saved id

in the cleanup path after auxiliary_device_uninit().