clk: mediatek: Do a runtime PM get on controllers during probe (Linux Linux)

CVE-2024-27002
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 7 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected acddfc2c261b3653ab1c1b567a427299bac20d31 < 165d226472575b213dd90dfda19d1605dd7c19a8 ; affected acddfc2c261b3653ab1c1b567a427299bac20d31 < c0dcd5c072e2a3fff886f673e6a5d9bf8090c4cc ; affected acddfc2c261b3653ab1c1b567a427299bac20d31 < b62ed25feb342eab052822eff0c554873799a4f5 ; affected acddfc2c261b3653ab1c1b567a427299bac20d31 < 2f7b1d8b5505efb0057cd1ab85fca206063ea4c3
Linux · Linuxaffected 5.2 ; unaffected 0 < 5.2 ; unaffected 6.1.88 ≤ 6.1.* ; unaffected 6.6.29 ≤ 6.6.* ; unaffected 6.8.8 ≤ 6.8.* ; unaffected 6.9 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD