CVE-2025-38668

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-08-22 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix NULL dereference on unbind due to stale coupling data Failing to reset coupling_desc.n_coupled after freeing coupled_rdevs can lead to NULL pointer dereference when regulators are accessed post-unbind. This can happen during runtime PM or other regulator operations that rely on coupling metadata. For example, on ridesx4, unbinding the 'reg-dummy' platform device triggers a panic in regulator_lock_recursive() due to stale coupling state. Ensure n_coupled is set to 0 to prevent access to invalid pointers.

Weakness Classification (1)

CWE-476

Affected Software (15)

Vendor	Product	Version
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < 7574892e259bbb16262ebfb4b65a2054a5e03a49
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < 6c49eac796681e250e34156bafb643930310bd4a
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < ca9bef9ba1a6be640c87bf802d2e9e696021576a
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < 800a2cfb2df7f96b3fb48910fc595e0215f6b019
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < 233d3c54c9620e95193923859ea1d0b0f5d748ca
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < 5d4261dbb3335221fd9c6e69f909ba79ee6663a7
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < d7e59c5fd7a0f5e16e75a30a89ea2c4ab88612b8
Linux	Linux	d8ca7d184b33af7913c244900df77c6cad6a5590 < ca46946a482238b0cdea459fb82fc837fb36260e
Linux	Linux	5.3
debian	debian_linux	11.0
linux	linux_kernel	5.3 – 5.4.297
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16