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CVE-2025-38272

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

MEDIUM
5.5
CVSS Score
Published: July 10, 2025 at 07:41 AM UTC
Updated: October 30, 2026 at 01:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
4.15 ≤ v < 6.12.466.13 ≤ v < 6.15.322256b0afb12333571ad11799fa68fd27e4f4e804.15
Vendor states this is fixed in 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c (fixed)
Vendor states this is fixed in 2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc (fixed)
Vendor states this is fixed in 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619 (fixed)
Vendor states this is fixed in 4.15 (unaffected)
Vendor states this is fixed in 6.12.46 (unaffected)
Vendor states this is fixed in 6.15.3 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1237c2d4a8db79dfd4369bff6930b0e385ed7d5c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3fbe3f4c57fda09f32e13fa05f53a0cc6f500619
Source: cverecord
https://git.kernel.org/stable/c/155bc8f94d52c01c0952acee8156f05f26d81ef6
Source: cverecord
https://git.kernel.org/stable/c/3f87fe8ceaa775a5b0ed02802146c1f4743998fb

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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