CVE-2025-38272 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net: dsa: b53: do not enable EEE on bcm63xx

BCM63xx internal switches do not support EEE but provide multiple RGMII ports where external PHYs may be connected. If one of these PHYs are EEE capable we may try to enable EEE for the MACs which then hangs the system on access of the (non-existent) EEE registers.

Fix this by checking if the switch actually supports EEE before attempting to configure it.

Reference

https://git.kernel.org/stable/c/1237c2d4a8db79dfd4369bff6930b0e385ed7d5c https://git.kernel.org/stable/c/2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc

Related CNNVD

CNNVD-202507-1394 (Published: 2025-07-10)