Threats tagged 'ghsa-frpq-r7pw-xq84'

A race condition vulnerability in the Linux kernel's tick broadcast device replacement mechanism has been resolved. The issue occurs when a broadcast clockevent device is replaced without proper serialization, potentially leading to a BUG() in tick_cleanup_dead_cpu() if the original device has a restricted interrupt affinity mask and the last CPU in that mask goes offline. The fix involves serializing the device replacement operations with a lock to prevent concurrent tick broadcast operations from causing inconsistent device states.