Threats tagged 'ghsa-vvfx-87j6-h3vv'

A concurrency control vulnerability in the Linux kernel's s390 vfio-ap driver was fixed by ensuring proper locking when accessing the list of ap_matrix_mdev objects. The issue involved missing the required guests_lock mutex when traversing or modifying the mdev_list, which could lead to kernel memory corruption or use-after-free conditions. The fix enforces correct locking order and removes redundant code related to trigger initialization.