CVE-2025-38668 - Linux Kernel Regulator NULL Pointer Dereference Vulnerability

CVE-2025-38668 - Linux Kernel Regulator NULL Pointer Dereference Vulnerability

https://cvefeed.io/rssfeed/latest.atom / Fri, 08/22/2025 - 20:35
CVE ID : CVE-2025-38668
Published : Aug. 22, 2025, 4:15 p.m. | 52 minutes ago
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.
Severity: 0.0 | NA
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