In the Linux kernel, the following vulnerability has been resolved:ksmbd: fix null pointer dereference in alloc_preauth_hash()The Client send malformed smb2 negotiate request. ksmbd return errorresponse. Subsequently, the client can send smb2 session setup eventhought conn->preauth_info is not allocated.This patch add KSMBD_SESS_NEED_SETUP status of connection to ignoresession setup request if smb2 negotiate phase is not complete.
No PoCs from references.
- https://github.com/ARPSyndicate/cve-scores
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/xairy/linux-kernel-exploitation