kernel: io_uring/waitid: always prune wait queue entry in io_waitid_wait()

A flaw use after free in the Linux kernel IOURING subsystem was found in the way local user uses iouring interface using IORINGOPWAITID. A local user could use this flaw to crash the system or potentially escalate their privileges on the system...

PT-2025-44115

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s io uring/waitid functionality. Specifically, the io waitid wait function did not consistently remove its entry from the wait queue entry list upon a...