CVE-2024-36887

MEDIUM

Linux Kernel 6.6.26-6.6.30 6.8.5-6.8.9 - Denial of Service via e1000e PHY MDI Access Atomic Context

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: e1000e: change usleep_range to udelay in PHY mdic access This is a partial revert of commit 6dbdd4de0362 ("e1000e: Workaround for sporadic MDI error on Meteor Lake systems"). The referenced commit used usleep_range inside the PHY access routines, which are sometimes called from an atomic context. This can lead to a kernel panic in some scenarios, such as cable disconnection and reconnection on vPro systems. Solve this by changing the usleep_range calls back to udelay.

Scores

CVSS v3 5.5
EPSS 0.0024
EPSS Percentile 15.1%
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 (9)
linux/Kernel 6.6.26 - 6.6.31linux
linux/Kernel 6.8.5 - 6.8.10linux
Linux/Linux 0a4e3c2d976aa4dd38951afd6267f74ef3fade0e - 950d5226cd6bb83ba720961a8d4d5cf79e6afd57
Linux/Linux 1d16cd91cd319d5bf6230c8493feb56a61e486a1 - f8a139656c95db893a543159873c57a470d7376d
Linux/Linux 6.6.26 - 6.6.31
Linux/Linux 6.8.5 - 6.8.10
Linux/Linux 6dbdd4de0362c37e54e8b049781402e5a409e7d0 - 387f295cb2150ed164905b648d76dfcbd3621778
linux/linux_kernel 6.9 rc3 (4 CPE variants)
linux/linux_kernel 6.6.26 - 6.6.31
Published May 30, 2024
Tracked Since Feb 18, 2026