Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program login: Fatal trap 9: general protection fault while in kernel mode cpuid = 1; apic id = 01 instruction pointer = 0x20:0xffffffff81163ee5 stack pointer = 0x28:0xfffffe00212a9610 frame pointer = 0x28:0xfffffe00212a9650 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 = 824 (syz-executor5687458) trap number = 9 panic: general protection fault cpuid = 1 time = 1553102872 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00212a92e0 vpanic() at vpanic+0x1e0/frame 0xfffffe00212a9340 panic() at panic+0x43/frame 0xfffffe00212a93a0 trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe00212a9420 trap() at trap+0xba/frame 0xfffffe00212a9540 calltrap() at calltrap+0x8/frame 0xfffffe00212a9540 --- trap 0x9, rip = 0xffffffff81163ee5, rsp = 0xfffffe00212a9610, rbp = 0xfffffe00212a9650 --- unp_dispose() at unp_dispose+0xa5/frame 0xfffffe00212a9650 sofree() at sofree+0x42c/frame 0xfffffe00212a96b0 soclose() at soclose+0x5b3/frame 0xfffffe00212a9730 _fdrop() at _fdrop+0x3a/frame 0xfffffe00212a9760 closef() at closef+0x27d/frame 0xfffffe00212a97f0 fdescfree_fds() at fdescfree_fds+0xbd/frame 0xfffffe00212a9840 fdescfree() at fdescfree+0x58a/frame 0xfffffe00212a9900 exit1() at exit1+0x780/frame 0xfffffe00212a9970 sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe00212a9980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe00212a9ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00212a9ab0 --- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x447a7a, rsp = 0x7fffdfffd508, rbp = 0x7fffdfffd520 --- KDB: enter: panic [ thread pid 824 tid 100222 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why