vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2023-54034

iommufd: Make sure to zero vfio_iommu_type1_info before copying to user

N/A
Published: December 24, 2025 at 10:56 AM UTC
Updated: June 17, 2026 at 06:46 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.2 ≤ v < 6.2.36.2 ≤ v < 6.36.2d624d6652a65ad4f47a58b8651a1ec1163bb81d3
Vendor states this is fixed in 7adcec686e4d699c169d34c722132b2bce5232cb (fixed)
Vendor states this is fixed in b3551ead616318ea155558cdbe7e91495b8d9b33 (fixed)
Vendor states this is fixed in 6.2 (unaffected)
Vendor states this is fixed in 6.2.3 (unaffected)
Vendor states this is fixed in 6.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/7adcec686e4d699c169d34c722132b2bce5232cb
Source: cverecord
https://git.kernel.org/stable/c/b3551ead616318ea155558cdbe7e91495b8d9b33

Quick Info

StatusDEFERRED

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card