{"id":"CVE-2025-38668","summary":"regulator: core: fix NULL dereference on unbind due to stale coupling data","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: core: fix NULL dereference on unbind due to stale coupling data\n\nFailing to reset coupling_desc.n_coupled after freeing coupled_rdevs can\nlead to NULL pointer dereference when regulators are accessed post-unbind.\n\nThis can happen during runtime PM or other regulator operations that rely\non coupling metadata.\n\nFor example, on ridesx4, unbinding the 'reg-dummy' platform device triggers\na panic in regulator_lock_recursive() due to stale coupling state.\n\nEnsure n_coupled is set to 0 to prevent access to invalid pointers.","modified":"2026-04-02T12:48:04.370704Z","published":"2025-08-22T16:02:59.680Z","related":["SUSE-SU-2025:03290-1","SUSE-SU-2025:03382-1","SUSE-SU-2025:03600-1","SUSE-SU-2025:03601-1","SUSE-SU-2025:03602-1","SUSE-SU-2025:03633-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20851-1","SUSE-SU-2025:20861-1","SUSE-SU-2025:20870-1","SUSE-SU-2025:20898-1","SUSE-SU-2025:21074-1","SUSE-SU-2025:21139-1","SUSE-SU-2025:21179-1","SUSE-SU-2025:3751-1","openSUSE-SU-2025:20081-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38668.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/233d3c54c9620e95193923859ea1d0b0f5d748ca"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5d4261dbb3335221fd9c6e69f909ba79ee6663a7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6c49eac796681e250e34156bafb643930310bd4a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7574892e259bbb16262ebfb4b65a2054a5e03a49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/800a2cfb2df7f96b3fb48910fc595e0215f6b019"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca46946a482238b0cdea459fb82fc837fb36260e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca9bef9ba1a6be640c87bf802d2e9e696021576a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d7e59c5fd7a0f5e16e75a30a89ea2c4ab88612b8"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38668.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38668"},{"type":"PACKAGE","url":"https://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/cve-osv-conversion/osv-output/CVE-2025-38668.json"}}],"schema_version":"1.7.5"}