blk-mq: don't touch ->tagset in blkmqgetsqhctx
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 v5.17.15 by commit b140bac470b4f707cda59c7266214246238661df, it was introduced in version v5.12 by commit b6e68ee82585f2ee890b0a897a6aacbf49a467bb. For more details please see the references link.