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CVE-2026-93145

clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()

In the Linux kernel, the following vulnerability has been resolved:

clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()

gdsc_unregister() removes the OF provider entry and tears down the
parent/subdomain wiring, but never calls pm_genpd_remove() on the
individual generic_pm_domain structures registered by gdsc_init():

	void gdsc_unregister(struct gdsc_desc *desc)
	{
		struct device *dev = desc->dev;
		size_t num = desc->num;

		gdsc_pm_subdomain_remove(desc, num);
		of_genpd_del_provider(dev->of_node);
	}

That leaves dangling entries on the global gpd_list. After a provider
unbind/rebind cycle (deferred-probe replay during early boot, real
module unload of a clk driver that owns GDSCs, or an OF-overlay tear-
down) the next gdsc_init() will end up trying to re-register a name
that is still in the list and pm_genpd_init() returns -EEXIST.

While we are here, flip the order so the consumer-facing OF provider
entry is the first thing removed -- otherwise a fresh
of_genpd_get_from_provider() call racing with the teardown could
attach to a domain that is mid-removal.

Iterate the scs[] array and pm_genpd_remove() each registered domain
after the subdomain links are torn down. The regulators stay devm-
managed (devm_regulator_get_optional() in gdsc_register()), so the
release happens automatically when the underlying device is unbound;
just the genpd accounting needs to be undone explicitly.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < 418d2f0a32b2a9ceb656a88aa9139408a9b7b517
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < 6333cbf7e86df9797b342ce64ae7d32ba46d8d10
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < 0f4733f5fc6b6b62750619f30c18730922a1dbdb
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < 6b9228a43963bcd4db92deb467375345132c29b3
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < f60f495858379dc70e87c6898d761a9db98739ff
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < 40bd77fa2857ccfa77b885b77d44cea406f24a4c
Status affected
Version 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5
Version < 86b23609d5e17a770d03037e53c6a443e742a6e6
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.4
Status affected
Version 0
Version < 4.4
Status unaffected
Version <= 5.10.*
Version 5.10.270
Status unaffected
Version <= 5.15.*
Version 5.15.221
Status unaffected
Version <= 6.1.*
Version 6.1.188
Status unaffected
Version <= 6.6.*
Version 6.6.157
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.116
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/418d2f0a32b2a9ceb656a88aa9139408a9b7b517
https://git.kernel.org/stable/c/6333cbf7e86df9797b342ce64ae7d32ba46d8d10
https://git.kernel.org/stable/c/cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24
https://git.kernel.org/stable/c/0f4733f5fc6b6b62750619f30c18730922a1dbdb
https://git.kernel.org/stable/c/6b9228a43963bcd4db92deb467375345132c29b3
https://git.kernel.org/stable/c/f60f495858379dc70e87c6898d761a9db98739ff
https://git.kernel.org/stable/c/40bd77fa2857ccfa77b885b77d44cea406f24a4c
https://git.kernel.org/stable/c/86b23609d5e17a770d03037e53c6a443e742a6e6