PT-2025-27895 · Linux+6 · Linux Kernel+6
Published
2025-03-28
·
Updated
2026-04-20
·
CVE-2025-38174
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 6.6.65
Description:
A vulnerability in the Linux kernel has been resolved, related to the thunderbolt module. The issue occurs when the
tb cfg request dequeue() function is called twice for the same request, resulting in a double list del() operation from the ctl->request queue. This can cause a general protection fault due to a non-canonical address. The circumstances of the issue are unclear, but it is theorized that tb cfg request work() can be scheduled twice for a request, leading to the double dequeue. To fix this, requests without the TB CFG REQUEST ACTIVE bit set are not dequeued.Recommendations:
For Linux kernel versions prior to 6.6.65, update to version 6.6.65 or later to resolve the issue.
As a temporary workaround, consider disabling the
tb cfg request dequeue() function until a patch is available.
Restrict access to the thunderbolt module to minimize the risk of exploitation.Exploit
Fix
RCE
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu