blktrace: fix use after free for struct blk_trace
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.27 by commit 78acc7dbd84a8c173a08584750845c31611160f2, it was introduced in version v5.12 by commit c0ea57608b691d6cde8aff23e11f9858a86b5918. For more details please see the references link.