vulnerability
Red Hat: CVE-2025-40047: kernel: io_uring/waitid: always prune wait queue entry in io_waitid_wait() (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Oct 28, 2025 | Nov 18, 2025 | Feb 4, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Oct 28, 2025
Added
Nov 18, 2025
Modified
Feb 4, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
io_uring/waitid: always prune wait queue entry in io_waitid_wait()
For a successful return, always remove our entry from the wait queue
entry list. Previously this was skipped if a cancelation was in
progress, but this can race with another invocation of the wait queue
entry callback.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.