PT-2025-35961 · Linux+4 · Linux Kernel+4

Published

2025-07-17

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Updated

2026-04-20

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CVE-2025-38688

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains a flaw in the iommufd subsystem where an integer overflow can occur during IOVA allocation due to an incorrect alignment calculation using the ALIGN() function. This overflow can lead to a corrupted iova, potentially allowing userspace to create a mapping that overlaps with other mappings or reserved ranges. The issue was addressed by replacing the ALIGN() function with get add overflow() to prevent the overflow and consolidating code into a helper function.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2025-14976
CVE-2025-38688
MGASA-2025-0234
MGASA-2025-0235
OESA-2026-1303
OESA-2026-1304
OESA-2026-1305
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Astra Linux
Linuxmint
Linux Kernel
Red Os
Ubuntu