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:cachefiles: add missing lock protection when pollingAdd missing lock protection in poll routine when iterating xarray,otherwise:Even with RCU read lock held, only the slot of the radix tree isensured to be pinned there, while the data structure (e.g. structcachefiles_req) stored in the slot has no such guarantee. The pollroutine will iterate the radix tree and dereference cachefiles_reqaccordingly. Thus RCU read lock is not adequate in this case andspinlock is needed here.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds