{"id":"CVE-2026-93145","summary":"clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()\n\ngdsc_unregister() removes the OF provider entry and tears down the\nparent/subdomain wiring, but never calls pm_genpd_remove() on the\nindividual generic_pm_domain structures registered by gdsc_init():\n\n\tvoid gdsc_unregister(struct gdsc_desc *desc)\n\t{\n\t\tstruct device *dev = desc-\u003edev;\n\t\tsize_t num = desc-\u003enum;\n\n\t\tgdsc_pm_subdomain_remove(desc, num);\n\t\tof_genpd_del_provider(dev-\u003eof_node);\n\t}\n\nThat leaves dangling entries on the global gpd_list. After a provider\nunbind/rebind cycle (deferred-probe replay during early boot, real\nmodule unload of a clk driver that owns GDSCs, or an OF-overlay tear-\ndown) the next gdsc_init() will end up trying to re-register a name\nthat is still in the list and pm_genpd_init() returns -EEXIST.\n\nWhile we are here, flip the order so the consumer-facing OF provider\nentry is the first thing removed -- otherwise a fresh\nof_genpd_get_from_provider() call racing with the teardown could\nattach to a domain that is mid-removal.\n\nIterate the scs[] array and pm_genpd_remove() each registered domain\nafter the subdomain links are torn down. The regulators stay devm-\nmanaged (devm_regulator_get_optional() in gdsc_register()), so the\nrelease happens automatically when the underlying device is unbound;\njust the genpd accounting needs to be undone explicitly.","modified":"2026-09-19T03:47:26.980854159Z","published":"2026-09-17T16:11:43.421Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93145.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0f4733f5fc6b6b62750619f30c18730922a1dbdb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/40bd77fa2857ccfa77b885b77d44cea406f24a4c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/418d2f0a32b2a9ceb656a88aa9139408a9b7b517"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6333cbf7e86df9797b342ce64ae7d32ba46d8d10"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6b9228a43963bcd4db92deb467375345132c29b3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/86b23609d5e17a770d03037e53c6a443e742a6e6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f60f495858379dc70e87c6898d761a9db98739ff"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93145.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93145"},{"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":"45dd0e55317ccb27fe8eae639275c2b3a2fb52e5"},{"fixed":"418d2f0a32b2a9ceb656a88aa9139408a9b7b517"},{"fixed":"6333cbf7e86df9797b342ce64ae7d32ba46d8d10"},{"fixed":"cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24"},{"fixed":"0f4733f5fc6b6b62750619f30c18730922a1dbdb"},{"fixed":"6b9228a43963bcd4db92deb467375345132c29b3"},{"fixed":"f60f495858379dc70e87c6898d761a9db98739ff"},{"fixed":"40bd77fa2857ccfa77b885b77d44cea406f24a4c"},{"fixed":"86b23609d5e17a770d03037e53c6a443e742a6e6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93145.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93145.json"}}],"schema_version":"1.9.0"}