ODEBUG: object 00000000c8e80e1c is on stack 00000000c068e5fb, but NOT annotated.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 13520 at lib/debugobjects.c:303 debug_object_is_on_stack lib/debugobjects.c:303 [inline]
WARNING: CPU: 0 PID: 13520 at lib/debugobjects.c:303 __debug_object_init.cold+0x6b/0x2fd lib/debugobjects.c:329
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 13520 Comm: syz-executor.4 Not tainted 4.9.171+ #49
 ffff8801af007a58 ffffffff81b4fb61 0000000000000000 ffffffff82a39c20
 00000000ffffffff 0000000000000000 0000000000000009 ffff8801af007b38
 ffffffff813f96aa 0000000041b58ab3 ffffffff82e2efd2 ffffffff813f94d1
Call Trace:
 [<000000008f987133>] __dump_stack lib/dump_stack.c:15 [inline]
 [<000000008f987133>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<00000000291becb5>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<000000000e8cb219>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<00000000c5377d01>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589
 [<00000000379c53cb>] debug_object_is_on_stack lib/debugobjects.c:303 [inline]
 [<00000000379c53cb>] __debug_object_init.cold+0x6b/0x2fd lib/debugobjects.c:329
 [<000000007733e448>] debug_object_init+0x16/0x20 lib/debugobjects.c:366
 [<00000000c9114bbc>] debug_hrtimer_init kernel/time/hrtimer.c:393 [inline]
 [<00000000c9114bbc>] debug_init kernel/time/hrtimer.c:438 [inline]
 [<00000000c9114bbc>] hrtimer_init+0x2a/0x2f0 kernel/time/hrtimer.c:1165
 [<00000000f9adb093>] alarm_init kernel/time/alarmtimer.c:321 [inline]
 [<00000000f9adb093>] alarm_timer_nsleep+0x160/0x4e0 kernel/time/alarmtimer.c:783
 [<00000000908b1796>] SYSC_clock_nanosleep kernel/time/posix-timers.c:1128 [inline]
 [<00000000908b1796>] SyS_clock_nanosleep+0x1be/0x280 kernel/time/posix-timers.c:1110
 [<00000000d6b9b473>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285
 [<000000008af54096>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..