CVE-2023-54034: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: iommufd: Make sure to zero vfio_iommu_type1_info before copying to user Missed a zero initialization here. Most of the struct is filled with a copy_from_user(), however minsz for that copy is smaller than the actual struct by 8 bytes, thus we don't fill the padding.

Affected products

• Linux Linux: from 6.2, before 6.2.3 (fixed in 6.2.3)

Published 2025-12-24. Last modified 2026-06-17.