CVE-2025-38002

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
06/06/2025
Last modified:
26/06/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> io_uring/fdinfo: grab ctx-&gt;uring_lock around io_uring_show_fdinfo()<br /> <br /> Not everything requires locking in there, which is why the &amp;#39;has_lock&amp;#39;<br /> variable exists. But enough does that it&amp;#39;s a bit unwieldy to manage.<br /> Wrap the whole thing in a -&gt;uring_lock trylock, and just return<br /> with no output if we fail to grab it. The existing trylock() will<br /> already have greatly diminished utility/output for the failure case.<br /> <br /> This fixes an issue with reading the SQE fields, if the ring is being<br /> actively resized at the same time.

Impact