CVEvulnerability

CVE-2025-37863

5.5 MEDIUM Published 2025-05-09 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-05-09
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Affected configurations

• linux linux kernel (>= 6.6.23 < 6.6.88) • linux linux kernel (>= 6.7 < 6.12.25) • linux linux kernel (>= 6.13 < 6.14.4) • linux linux kernel 6.15

References