CVE-2024-46846

MEDIUM

Linux Kernel 5.18-6.1.109, 6.2-6.6.50, 6.7-6.10.9 - Denial of Service via Unbalanced Runtime PM Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: spi: rockchip: Resolve unbalanced runtime PM / system PM handling Commit e882575efc77 ("spi: rockchip: Suspend and resume the bus during NOIRQ_SYSTEM_SLEEP_PM ops") stopped respecting runtime PM status and simply disabled clocks unconditionally when suspending the system. This causes problems when the device is already runtime suspended when we go to sleep -- in which case we double-disable clocks and produce a WARNing. Switch back to pm_runtime_force_{suspend,resume}(), because that still seems like the right thing to do, and the aforementioned commit makes no explanation why it stopped using it. Also, refactor some of the resume() error handling, because it's not actually a good idea to re-disable clocks on failure.

Scores

CVSS v3 5.5
EPSS 0.0022
EPSS Percentile 12.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (15)
linux/Kernel 5.18.0 - 6.1.110linux
linux/Kernel 6.2.0 - 6.6.51linux
linux/Kernel 6.7.0 - 6.10.10linux
Linux/Linux < 5.18
Linux/Linux 5.18
Linux/Linux 6.1.110 - 6.1.*
Linux/Linux 6.10.10 - 6.10.*
Linux/Linux 6.11
Linux/Linux 6.6.51 - 6.6.*
Linux/Linux e882575efc771f130a24322377dc1033551da11d - 0efbad8445fbba7896402500a1473450a299a08a
... and 5 more
Published Sep 27, 2024
Tracked Since Feb 18, 2026