CVE-2025-38453

CVE-2025-38453 affects the Linux kernel: the io_uring/msg_ring path can free an io_kiocb at an unsafe time, leading to use-after-free scenarios. The documented fix defers freeing via RC/RCU mechanics by adding an rcU head and switching to kfree_rcu() in both the freeing paths (io_msg_tw_complete(...