Name of the Vulnerable Software and Affected Versions Linux Kernel versions 3.3 through 5.10.42

Description The issue is related to a NULL pointer dereference in the llcp sock getname() function after a failed connect. This problem was introduced in version v3.3 and is fixed in Linux Kernel version v5.10.43. The actual impact and attack plausibility have not yet been proven.

Recommendations For Linux Kernel versions 3.3 through 5.10.42, update to version v5.10.43 or later to resolve the issue. As a temporary workaround, consider restricting the use of the llcp sock getname() function until a patch is available.