PT-2025-25836 · Linux+6 · Linux Kernel+6
Published
2025-02-21
·
Updated
2026-04-20
·
CVE-2025-38062
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 (affected versions not specified)
Description
The issue concerns a vulnerability in the Linux kernel related to the use of IOMMU (Input-Output Memory Management Unit) translation for MSI (Message Signaled Interrupts) message addresses. This process involves a 2-step translation, which has an inherent lifetime problem for the pointer stored in the cookie that must remain valid between the two steps. The lack of locking at the irq layer to protect the lifetime of this pointer can lead to a use-after-free (UAF) condition, especially when the iommu domain is changed while MSI interrupts are being programmed. This can potentially allow userspace to directly race VFIO DEVICE ATTACH IOMMUFD PT and VFIO DEVICE SET IRQS, causing both the cookie pointer and the unlocked call to iommu get domain for dev() on the MSI translation path to become UAFs.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Allocation of Resources Without Limits
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu