CVE-2025-37863 - CVE House
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Status published Unknown CVE-2025-37863

ovl: don't allow datadir only

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
cc0918b3582c98f12cfb30bf7496496d14bff3e9, 24e16e385f2272b1a9df51337a5c32d28a29c7ad, 6.6.23, 6.7, 0, 6.6.88, 6.12.25, 6.14.4, 6.15

Timeline

Official Publish: May 9th, 2025
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.