CVE-2024-42232

Summary

CVE-2024-42232: A vulnerability in the Linux kernel's libceph component has been identified and addressed. The issue lies in the handling of delayed work within ceph_monc_stop(). This process is susceptible to races with mon_fault() and finish_hunting(), leading to use-after-free vulnerabilities in monc and associated objects. To mitigate this, monc->cur_mon and monc->hunting are cleared in ceph_monc_stop(), and delayed_work() is exited if monc->cur_mon is cleared. Additionally, cancel_delayed_work_sync() is invoked following session closure.

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