CVE-2024-46719 usb: typec: ucsi: Fix null pointer dereference in trace

What is CVE-2024-46719?

CVE-2024-46719 is a medium-severity vulnerability in Linux kernel, published on 18 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2024-46719?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46719?

Apply the vendor's patch.

Is CVE-2024-46719 being exploited?

There is no known exploitation of CVE-2024-46719 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-49404, BELL-CVE-2024-46719, DEBIAN-CVE-2024-46719, GHSA-7ccw-f88q-2crh, UBUNTU-CVE-2024-46719.