block: Fix handling of offline queues in blkmqallocrequesthctx()
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 v5.18.6 by commit b202a0bd2580ee5b0453772c46d464152fafff73, it was introduced in version v4.16 by commit 20e4d813931961fe26d26a1e98b3aba6ec00b130. For more details please see the references link.