CVE-2025-68178

CVE-2025-68178 involves a Linux kernel deadlock in blk-cgroup configuration. The issue stems from locking order: blk_queue_enter() is taken with rq_qos_mutex held in blkg_conf_prep(), while queue freezing occurs with rq_qos_mutex held elsewhere. The dependency chain: sysfs_lock -> rq_qos_mutex...