Description

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration cros_typec_register_thunderbolt() missed initializing the `adata->lock` mutex. This leads to a NULL dereference when the mutex is later acquired (e.g. in cros_typec_altmode_work()). Initialize the mutex in cros_typec_register_thunderbolt() to fix the issue.

References 3

• git.kernel.org https://git.kernel.org/stable/c/23ae72e8c2f1c1d1da8cbd479320ddcfcc9c7435
• git.kernel.org https://git.kernel.org/stable/c/3b13d5883a097f538fccbab1c61c95546d29621f
• git.kernel.org https://git.kernel.org/stable/c/525cb7ba6661074c1c5cc3772bccc6afab6791ef

Remediation