CVE-2025-38517 lib/alloc_tag: do not acquire non-existent lock in alloc_tag_top_users()

In the Linux kernel, the following vulnerability has been resolved: lib/alloctag: do not acquire non-existent lock in alloctagtopusers alloctagtopusers attempts to lock alloctagcttype-modlock even when the alloctagcttype is not allocated because: 1 alloc tagging is disabled because mem profiling ...