==================================================================
BUG: KASAN: stack-out-of-bounds in __debug_check_no_obj_freed lib/debugobjects.c:777 [inline]
BUG: KASAN: stack-out-of-bounds in debug_check_no_obj_freed+0x471/0x595 lib/debugobjects.c:815
Read of size 8 at addr ffff880190d202b8 by task modprobe/22447
PANIC: double fault, error_code: 0x0

CPU: 0 PID: 22446 Comm: syz-executor3 Not tainted 4.18.0-rc3+ #47
CPU: 1 PID: 22447 Comm: modprobe Not tainted 4.18.0-rc3+ #47
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Code: 41 
Call Trace:
57 41 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
89 cf 
41 56 
41 55 
49 
89 
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
fd 41 
54 45 
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
89 
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
cc 
 __debug_check_no_obj_freed lib/debugobjects.c:777 [inline]
 debug_check_no_obj_freed+0x471/0x595 lib/debugobjects.c:815
53 65 
4c 8b 
34 25 
40 ee 
01 00 
48 83 
 kmem_cache_free+0x216/0x2d0 mm/slab.c:3755
e4 f0 
 putname+0xf2/0x130 fs/namei.c:261
48 
 do_sys_open+0x569/0x760 fs/open.c:1110
81 ec 
60 03 
00 00 
48 8b 
 __do_sys_open fs/open.c:1119 [inline]
 __se_sys_open fs/open.c:1114 [inline]
 __x64_sys_open+0x7e/0xc0 fs/open.c:1114
45 10 
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
<89> 94 
24 80 
00 00 
00 48 
ba 00 
00 00 
00 00 
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
fc 
RIP: 0033:0x7f5edf71f120
ff 
Code: 
df 48 
48 
89 84 
8b 
24 98 
15 
RSP: 0018:ffff88018f48df10 EFLAGS: 00010082
1b 
4d 
RAX: 0000000000000000 RBX: 1ffff10031e91c5e RCX: 0000000000000002
2b 
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620
RBP: ffff88018f48e298 R08: 0000000000000000 R09: 0000000000000000
00 
R10: ffff880190e9f1b8 R11: ffff8801dae236b3 R12: 0000000000000000
R13: ffffffff88f92620 R14: ffff8801af13c340 R15: 0000000000000002
f7 
FS:  00007f272f97c700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
d8 
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
64 
CR2: ffff88018f48df08 CR3: 00000001b70b7000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
89 
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
02