#11 0xffffffff815550c4 at vmFatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x18 _fault+0x11a4 #12 0xffffffff815fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff8102f5b2 stack pointer = 0x0:0xfffffe00229ae7e0 frame pointer = 0x0:0xfffffe00229ae820 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = resume, IOPL = 0 current process = 792 (syz-executor.0) trap number = 12 panic: page fault cpuid = 0 time = 1570079990 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00229ae430 vpanic() at vpanic+0x1e0/frame 0xfffffe00229ae490 panic() at panic+0x43/frame 0xfffffe00229ae4f0 trap_fatal() at trap_fatal+0x4de/frame 0xfffffe00229ae570 trap_pfault() at trap_pfault+0xdc/frame 0xfffffe00229ae5f0 trap() at trap+0x44f/frame 0xfffffe00229ae710 calltrap() at calltrap+0x8/frame 0xfffffe00229ae710 --- trap 0xc, rip = 0xffffffff8102f5b2, rsp = 0xfffffe00229ae7e0, rbp = 0xfffffe00229ae820 --- thread_lock_validate() at thread_lock_validate+0x22/frame 0xfffffe00229ae820 _thread_lock() at _thread_lock+0x6b/frame 0xfffffe00229ae870 thread_single() at thread_single+0x3f4/frame 0xfffffe00229ae8f0 exit1() at exit1+0x112/frame 0xfffffe00229ae960 sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe00229ae970 ia32_syscall() at ia32_syscall+0x46a/frame 0xfffffe00229aeab0 int0x80_syscall_common() at int0x80_syscall_common+0x9c KDB: enter: panic [ thread pid 792 tid 100072 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why