Lucene search

K
ubuntucveUbuntu.comUB:CVE-2024-27002
HistoryMay 01, 2024 - 12:00 a.m.

CVE-2024-27002

2024-05-0100:00:00
ubuntu.com
ubuntu.com
3
linux kernel
vulnerability
mediatek clock
probe
deadlock
runtime pm
genpd lock
mt8183
mt8192
chromebooks
unix

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

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.

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%