cve-2024-27002
Vulnerability from cvelistv5
Published
2024-05-01 05:28
Modified
2024-12-19 08:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: Do a runtime PM get on controllers during probe mt8183-mfgcfg has a mutual dependency with genpd during the probing stage, which leads to a deadlock in the following call stack: CPU0: genpd_lock --> clk_prepare_lock genpd_power_off_work_fn() genpd_lock() generic_pm_domain::power_off() clk_unprepare() clk_prepare_lock() CPU1: clk_prepare_lock --> genpd_lock clk_register() __clk_core_init() clk_prepare_lock() clk_pm_runtime_get() genpd_lock() Do a runtime PM get at the probe function to make sure clk_register() won't acquire the genpd lock. Instead of only modifying mt8183-mfgcfg, do this on all mediatek clock controller probings because we don't believe this would cause any regression. Verified on MT8183 and MT8192 Chromebooks.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/165d226472575b213dd90dfda19d1605dd7c19a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2f7b1d8b5505efb0057cd1ab85fca206063ea4c3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b62ed25feb342eab052822eff0c554873799a4f5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0dcd5c072e2a3fff886f673e6a5d9bf8090c4cc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/165d226472575b213dd90dfda19d1605dd7c19a8
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2f7b1d8b5505efb0057cd1ab85fca206063ea4c3
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b62ed25feb342eab052822eff0c554873799a4f5
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c0dcd5c072e2a3fff886f673e6a5d9bf8090c4cc
Impacted products
Vendor Product Version
Linux Linux Version: 5.2
Show details on NVD website

To clipboard 

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}


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