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CVE-2024-50081

Description

In the Linux kernel, the following vulnerability has been resolved:blk-mq: setup queue ->tag_set before initializing hctxCommit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx")needs to check queue mapping via tag set in hctx's cpuhp handler.However, q->tag_set may not be setup yet when the cpuhp handler isenabled, then kernel oops is triggered.Fix the issue by setup queue tag_set before initializing hctx.

POC

Reference

No PoCs from references.

Github

- https://github.com/fkie-cad/nvd-json-data-feeds