CVE-2025-38668

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Source
https://cve.org/CVERecord?id=CVE-2025-38668
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38668.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38668
Downstream
Related
Published
2025-08-22T16:02:59.680Z
Modified
2026-03-12T02:14:37.426563Z
Summary
regulator: core: fix NULL dereference on unbind due to stale coupling data
Details

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 couplingdesc.ncoupled 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 regulatorlockrecursive() due to stale coupling state.

Ensure n_coupled is set to 0 to prevent access to invalid pointers.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38668.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d8ca7d184b33af7913c244900df77c6cad6a5590
Fixed
7574892e259bbb16262ebfb4b65a2054a5e03a49
Fixed
6c49eac796681e250e34156bafb643930310bd4a
Fixed
ca9bef9ba1a6be640c87bf802d2e9e696021576a
Fixed
800a2cfb2df7f96b3fb48910fc595e0215f6b019
Fixed
233d3c54c9620e95193923859ea1d0b0f5d748ca
Fixed
5d4261dbb3335221fd9c6e69f909ba79ee6663a7
Fixed
d7e59c5fd7a0f5e16e75a30a89ea2c4ab88612b8
Fixed
ca46946a482238b0cdea459fb82fc837fb36260e

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38668.json"