CVE-2024-27002
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…
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.17% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/165d226472575b213dd90dfda19d1605dd7c19a8Patch
- https://git.kernel.org/stable/c/2f7b1d8b5505efb0057cd1ab85fca206063ea4c3Patch
- https://git.kernel.org/stable/c/b62ed25feb342eab052822eff0c554873799a4f5Patch
- https://git.kernel.org/stable/c/c0dcd5c072e2a3fff886f673e6a5d9bf8090c4ccPatch
- https://git.kernel.org/stable/c/165d226472575b213dd90dfda19d1605dd7c19a8Patch
- https://git.kernel.org/stable/c/2f7b1d8b5505efb0057cd1ab85fca206063ea4c3Patch
- https://git.kernel.org/stable/c/b62ed25feb342eab052822eff0c554873799a4f5Patch
- https://git.kernel.org/stable/c/c0dcd5c072e2a3fff886f673e6a5d9bf8090c4ccPatch
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.