Fatal trap 9: general protection fault while in kernel mode cpuid = 1; apic id = 01 instruction pointer = 0x20:0xffffffff813441d5 stack pointer = 0x28:0xfffffe001fa63770 frame pointer = 0x28:0xfffffe001fa63820 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 11715 (syz-executor.3) trap number = 9 panic: general protection fault cpuid = 1 time = 7 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe001fa63440 vpanic() at vpanic+0x1e0/frame 0xfffffe001fa634a0 panic() at panic+0x43/frame 0xfffffe001fa63500 trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe001fa63580 trap() at trap+0xba/frame 0xfffffe001fa636a0 calltrap() at calltrap+0x8/frame 0xfffffe001fa636a0 --- trap 0x9, rip = 0xffffffff813441d5, rsp = 0xfffffe001fa63770, rbp = 0xfffffe001fa63820 --- sctp_inpcb_bind() at sctp_inpcb_bind+0x3f5/frame 0xfffffe001fa63820 sctp_connect() at sctp_connect+0x266/frame 0xfffffe001fa63880 soconnectat() at soconnectat+0x183/frame 0xfffffe001fa638e0 kern_connectat() at kern_connectat+0x1ff/frame 0xfffffe001fa63940 sys_connect() at sys_connect+0xd9/frame 0xfffffe001fa63980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe001fa63ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe001fa63ab0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x412e5a, rsp = 0x7fffdfffdf38, rbp = 0x3 --- KDB: enter: panic [ thread pid 11715 tid 100324 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why