Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:cacheinfo: Fix shared_cpu_map to handle shared caches at different levelsThe cacheinfo sets up the shared_cpu_map by checking whether the cacheswith the same index are shared between CPUs. However, this will triggerslab-out-of-bounds access if the CPUs do not have the same cache hierarchy.Another problem is the mismatched shared_cpu_map when the shared cache doesnot have the same index between CPUs.CPU0 I D L3index 0 1 2 x ^ ^ ^ ^index 0 1 2 3CPU1 I D L2 L3This patch checks each cache is shared with all caches on other CPUs.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds