CVE-2026-63973 net: mana: Add NULL guards in teardown path to prevent panic on attach failure

In the Linux kernel, the following vulnerability has been resolved: net: mana: Add NULL guards in teardown path to prevent panic on attach failure When queue allocation fails partway through, the error cleanup frees and NULLs apc-txqp and apc-rxqs. Multiple teardown paths such as manaremove,...