CVE-2026-46315

A flaw was found in the Linux kernel's iouring subsystem, specifically within the IORINGOPWAITID operation. This vulnerability occurs because the waitid information structure is not properly initialized before being copied to userspace. A local user could exploit this to expose stale data from...

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...