PT-2025-16581 · Linux+6 · Linux Kernel+6
Published
2025-03-06
·
Updated
2026-05-26
·
CVE-2025-22022
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the Linux kernel's handling of isochronous endpoints on NEC uPD720200 devices. It causes IOMMU faults after some Missed Service Errors, potentially leading to data being written to random buffers of pending TDs on other endpoints, devices, or even other HCs in the same IOMMU domain. The problem can be avoided by setting the chain bit of Link TRBs on isochronous rings.
Recommendations
As a temporary workaround, consider applying the link chain quirk on NEC isoc endpoints to avoid the issue.
To resolve the issue, set the chain bit of Link TRBs on isochronous rings.
No further information is provided on how to fix the vulnerability for specific versions.
Exploit
Fix
Memory Corruption
Buffer Overflow
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Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Nec Upd720200
Suse
Ubuntu