CVE-2025-38688 Affecting linux-virt-doc package, versions <6.12.44-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRTDOC-14114590
  • published26 Nov 2025
  • disclosed4 Sept 2025

Introduced: 4 Sep 2025

CVE-2025-38688  (opens in a new tab)

How to fix?

Upgrade Minimos:latest linux-virt-doc to version 6.12.44-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-virt-doc package and not the linux-virt-doc package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

iommufd: Prevent ALIGN() overflow

When allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to ULONG_MAX then the ALIGN() can wrap resulting in a corrupted iova.

Open code the ALIGN() using get_add_overflow() to prevent this. This simplifies the checks as we don't need to check for length earlier either.

Consolidate the two copies of this code under a single helper.

This bug would allow userspace to create a mapping that overlaps with some other mapping or a reserved range.

CVSS Base Scores

version 3.1