CVE-2026-43074

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

eventpoll: defer struct eventpoll free to RCU grace period

In certain situations, ep_free() in eventpoll.c will kfree the epi->ep
eventpoll struct while it still being used by another concurrent thread.
Defer the kfree() to an RCU callback to prevent UAF.

More information : https://git.kernel.org/stable/c/07712db80857d5d09ae08f3df85a708ecfc3b61f