CVE-2023-54034
Linux Kernel 6.2-6.2.2 - Information Exposure via Uninitialized Memory in iommufd
Title source: llmDescription
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.
References (2)
Core 2
Scores
EPSS
0.0015
EPSS Percentile
4.8%
Details
Status
published
Products (7)
linux/Kernel
6.2.0 - 6.2.3linux
Linux/Linux
< 6.2
Linux/Linux
6.2
Linux/Linux
6.2.3 - 6.2.*
Linux/Linux
6.3
Linux/Linux
d624d6652a65ad4f47a58b8651a1ec1163bb81d3 - 7adcec686e4d699c169d34c722132b2bce5232cb
Linux/Linux
d624d6652a65ad4f47a58b8651a1ec1163bb81d3 - b3551ead616318ea155558cdbe7e91495b8d9b33
Published
Dec 24, 2025
Tracked Since
Feb 18, 2026