Dear developers, I find that "general protection fault in l2cap_sock_getsockopt" and "general protection fault in sco_sock_getsockopt" may be duplicated bugs from the same root cause. First, by comparing the PoC similarity after own minimization, we find they share the same PoC. Second, the stack traces for both bug reports are the same except for the last function. And the different last functions are due to a function name change (typo fix) from "sctp_ulpevent_nofity_peer_addr_change" to "sctp_ulpevent_notify_peer_addr_change" -- My best regards to you. No System Is Safe! Dongliang Mu