CVE-2025-37863

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-37863
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18 Patch
https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d Patch
https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331 Patch
https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
History

12 Nov 2025, 20:13

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18 - () https://git.kernel.org/stable/c/0874b629f65320778e7e3e206177770666d9db18 - Patch
References () https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d - () https://git.kernel.org/stable/c/21d2ffb0e9838a175064c22f3a9de97d1f56f27d - Patch
References () https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331 - () https://git.kernel.org/stable/c/b9e3579213ba648fa23f780e8d53e99011c62331 - Patch
References () https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4 - () https://git.kernel.org/stable/c/eb3a04a8516ee9b5174379306f94279fc90424c4 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel

12 May 2025, 17:32

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ovl: no se permite solo datadir. En teoría, overlayfs podría permitir que la capa superior haga referencia directa a una capa de datos, pero actualmente no existe un caso práctico para esto. Originalmente, cuando se introdujeron las capas de solo datos, esto no se permitía; solo se introdujo mediante la función "datadir+", pero sin gestionar este caso, lo que resultaba en un error. Se soluciona deshabilitando datadir sin lowerdir.

09 May 2025, 07:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-09 07:16

Updated : 2025-11-12 20:13

NVD link : CVE-2025-37863

Mitre link : CVE-2025-37863

CVE.ORG link : CVE-2025-37863

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo