PT-2025-53214 · Linux · Linux Kernel
Published
2023-08-16
·
Updated
2026-03-24
·
CVE-2023-54137
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains an information leak in the vfio/type1 subsystem. A hole in the
vfio iommu type1 info cap migration structure is not initialized, potentially exposing data to userspace via the VFIO IOMMU GET INFO ioctl call. The issue stems from the vfio iommu migration build caps function filling the structure without initializing the hole, and subsequent copying of the structure to userspace. The memcpy function in vfio info add capability copies the structure, including the uninitialized hole.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Information Disclosure
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel