CVE-2024-46719

MEDIUM

Linux Kernel - Null Pointer Dereference in UCSI DisplayPort Alternate Mode Registration

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Fix null pointer dereference in trace ucsi_register_altmode checks IS_ERR for the alt pointer and treats NULL as valid. When CONFIG_TYPEC_DP_ALTMODE is not enabled, ucsi_register_displayport returns NULL which causes a NULL pointer dereference in trace. Rather than return NULL, call typec_port_register_altmode to register DisplayPort alternate mode as a non-controllable mode when CONFIG_TYPEC_DP_ALTMODE is not enabled.

References (9)

Core 9

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 14.0%
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

CWE
CWE-476
Status published
Products (23)
linux/Kernel 5.11.0 - 5.15.167linux
linux/Kernel 5.16.0 - 6.1.109linux
linux/Kernel 5.2.0 - 5.4.284linux
linux/Kernel 5.5.0 - 5.10.226linux
linux/Kernel 6.2.0 - 6.6.50linux
linux/Kernel 6.7.0 - 6.10.9linux
Linux/Linux < 5.2
Linux/Linux 5.10.226 - 5.10.*
Linux/Linux 5.15.167 - 5.15.*
Linux/Linux 5.2
... and 13 more
Published Sep 18, 2024
Tracked Since Feb 18, 2026