CVE-2023-54034
kernel: Kernel (iommufd): Information Disclosure via uninitialized memory padding
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · July 22, 2026
Description
A flaw was found in the kernel. A local attacker could exploit this by triggering a missing zero initialization in the iommufd component when copying vfio_iommu_type1_info to user space. This could lead to the disclosure of sensitive information from uninitialized memory padding.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE not specified