CVE-2024-46719 Information

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.

Reference

https://git.kernel.org/stable/c/8095bf0579ed4906a33f7bec675bfb29b6b16a3b https://git.kernel.org/stable/c/7e64cabe81c303bdf6fd26b6a09a3289b33bc870 https://git.kernel.org/stable/c/3aa56313b0de06ce1911950b2cc0c269614a87a9 https://git.kernel.org/stable/c/b4243c05d7e3db0bdbf9124e6fa59b4ca7c807ae https://git.kernel.org/stable/c/3b9f2d9301ae67070fe77a0c06758722fd7172b7 https://git.kernel.org/stable/c/99331fe68a8eaa4097143a33fb0c12d5e5e8e830 https://git.kernel.org/stable/c/99516f76db48e1a9d54cdfed63c1babcee4e71a5