CVE-2025-40047

high

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.

References

https://git.kernel.org/stable/c/696ba6032081e617564a8113a001b8d7943cb928

https://git.kernel.org/stable/c/3e2205db2f0608898d535da1964e1b376aacfdaa

https://git.kernel.org/stable/c/2f8229d53d984c6a05b71ac9e9583d4354e3b91f

Details

Source: Mitre, NVD

Published: 2025-10-28

Updated: 2025-10-30

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00017