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

ieee802154: Avoid calling WARN ON() on -ENOMEM in cfg802154 switch netns()

It's pointless to call WARN ON() in case of an allocation failure in dev change net namespace() and device rename(), since it only leads to useless splats caused by deliberate fault injections, so avoid it.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.