CVE-2025-38726

In the Linux kernel, the following vulnerability has been resolved: net: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect After the call to phy_disconnect() netdev->phydev is reset to NULL. So fixed_phy_unregister() would be called with a NULL pointer as argument. Therefore cache the phy_device before this call.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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/44bcd397ad9cd1a6b25fabb7f5edbee4fb0cfc2e	Patch
https://git.kernel.org/stable/c/9ad90dd34b4e8e5be1e45a4559f4de0f14e53af2	Patch
https://git.kernel.org/stable/c/ae59ec969c07c73f0610f8bd7e648f01e798d222	Patch
https://git.kernel.org/stable/c/e88fbc30dda1cb7438515303704ceddb3ade4ecd	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::::::::

History

19 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: net: ftgmac100: corregir posible acceso a puntero NULL en ftgmac100_phy_disconnect Después de la llamada a phy_disconnect(), netdev->phydev se restablece a NULL. Por lo tanto, fixed_phy_unregister() sería llamada con un puntero NULL como argumento. Por lo tanto, almacenar en caché el phy_device antes de esta llamada.

Information

Published : 2025-09-04 16:15

Updated : 2026-10-19 21:10

NVD link : CVE-2025-38726

Mitre link : CVE-2025-38726

CVE.ORG link : CVE-2025-38726

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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