CVE-2025-37863 Affecting linux-virt-doc package, versions <6.12.26-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRTDOC-13961875
  • published14 Nov 2025
  • disclosed9 May 2025

Introduced: 9 May 2025

CVE-2025-37863  (opens in a new tab)

How to fix?

Upgrade Minimos:latest linux-virt-doc to version 6.12.26-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:

ovl: don't allow datadir only

In theory overlayfs could support upper layer directly referring to a data layer, but there's no current use case for this.

Originally, when data-only layers were introduced, this wasn't allowed, only introduced by the "datadir+" feature, but without actually handling this case, resulting in an Oops.

Fix by disallowing datadir without lowerdir.

CVSS Base Scores

version 3.1