blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race

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CVE-2024-50082 · Microsoft / collected KEV context

cve-program · CVE-2024-50082

• https://git.kernel.org/stable/c/d04b72c9ef2b0689bfc1057d21c4aeed087c329f
• https://git.kernel.org/stable/c/3bc6d0f8b70a9101456cf02ab99acb75254e1852
• https://git.kernel.org/stable/c/455a469758e57a6fe070e3e342db12e4a629e0eb
• https://git.kernel.org/stable/c/b5e900a3612b69423a0e1b0ab67841a1fb4af80f
• https://git.kernel.org/stable/c/4c5b123ab289767afe940389dbb963c5c05e594e
• https://git.kernel.org/stable/c/04f283fc16c8d5db641b6bffd2d8310aa7eccebc
• https://git.kernel.org/stable/c/e972b08b91ef48488bae9789f03cfedb148667fb

No related operational record is retained in the current change model.