Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer	= 0x20:0xffffffff81715bb1
stack pointer	        = 0x0:0xfffffe002ccef530
frame pointer	        = 0x0:0xfffffe002ccef530
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		= 13303 (syz-executor.2)
trap number		= 9
panic: general protection fault
cpuid = 0
time = 444
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002ccef200
vpanic() at vpanic+0x1e0/frame 0xfffffe002ccef260
panic() at panic+0x43/frame 0xfffffe002ccef2c0
trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe002ccef340
trap() at trap+0xba/frame 0xfffffe002ccef460
calltrap() at calltrap+0x8/frame 0xfffffe002ccef460
--- trap 0x9, rip = 0xffffffff81715bb1, rsp = 0xfffffe002ccef530, rbp = 0xfffffe002ccef530 ---
memcmp() at memcmp+0xa1/frame 0xfffffe002ccef530
authunix_create() at authunix_create+0x25b/frame 0xfffffe002ccef7f0
sys_nlm_syscall() at sys_nlm_syscall+0xed/frame 0xfffffe002ccef970
ia32_syscall() at ia32_syscall+0x452/frame 0xfffffe002ccefab0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xa
KDB: enter: panic
[ thread pid 13303 tid 100705 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why