CVE-2025-40047

CVE-2025-40047

High · published October 28, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
5.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00163 · 5.3th percentile
Published
2025-10-28T16:15Z
References (3)
EPSS history
Timeline
  • 28 OCT 11:48Z
    io_uring/waitid: always prune wait queue entry in io_waitid_wait()
    cvelistv5