CVE-2024-50023

MEDIUM

Linux Kernel 6.4-6.6.56, 6.7-6.11.3 - Denial of Service via PHY LED List Mismanagement

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: phy: Remove LED entry from LEDs list on unregister Commit c938ab4da0eb ("net: phy: Manual remove LEDs to ensure correct ordering") correctly fixed a problem with using devm_ but missed removing the LED entry from the LEDs list. This cause kernel panic on specific scenario where the port for the PHY is torn down and up and the kmod for the PHY is removed. On setting the port down the first time, the assosiacted LEDs are correctly unregistered. The associated kmod for the PHY is now removed. The kmod is now added again and the port is now put up, the associated LED are registered again. On putting the port down again for the second time after these step, the LED list now have 4 elements. With the first 2 already unregistered previously and the 2 new one registered again. This cause a kernel panic as the first 2 element should have been removed. Fix this by correctly removing the element when LED is unregistered.

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 14.5%
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 (12)
linux/Kernel 6.4.0 - 6.6.57linux
linux/Kernel 6.7.0 - 6.11.4linux
Linux/Linux < 6.4
Linux/Linux 6.11.4 - 6.11.*
Linux/Linux 6.12
Linux/Linux 6.4
Linux/Linux 6.6.57 - 6.6.*
Linux/Linux c938ab4da0eb1620ae3243b0b24c572ddfc318fc - 143ffa7878e2d9d9c3836ee8304ce4930f7852a3
Linux/Linux c938ab4da0eb1620ae3243b0b24c572ddfc318fc - f50b5d74c68e551667e265123659b187a30fe3a5
Linux/Linux c938ab4da0eb1620ae3243b0b24c572ddfc318fc - fba363f4d244269a0ba7abb8df953a244c6749af
... and 2 more
Published Oct 21, 2024
Tracked Since Feb 18, 2026