CVE-2021-33034

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.12.4

Description The issue is related to a use-after-free in the net/bluetooth/hci event.c component of the Linux kernel, specifically when destroying an hci chan. This can lead to writing an arbitrary value, potentially allowing an attacker to execute arbitrary code.

Recommendations For Linux kernel versions prior to 5.12.4, update to version 5.12.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the net/bluetooth/hci event.c component until a patch is available.