PANIC: double fault, error_code: 0x0
==================================================================
CPU: 0 PID: 9117 Comm: syz-executor1 Not tainted 4.18.0-rc3+ #56
BUG: KASAN: stack-out-of-bounds in futex_wake+0x6b9/0x760 kernel/futex.c:1538
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Read of size 8 at addr ffff88019cd377b0 by task syz-executor6/9124
RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294

Code: 
CPU: 1 PID: 9124 Comm: syz-executor6 Not tainted 4.18.0-rc3+ #56
41 57 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
41 89 
Call Trace:
cf 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
41 56 
41 
55 
49 
89 
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
fd 
41 54 
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
45 89 
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
cc 53 
 futex_wake+0x6b9/0x760 kernel/futex.c:1538
65 
4c 8b 
34 
25 
40 
ee 
01 00 
 do_futex+0x300/0x27d0 kernel/futex.c:3531
48 
83 
e4 
f0 
48 81 
ec 
60 
03 
00 00 
48 8b 
45 10 
<89> 
94 24 
80 
00 
00 00 
48 
ba 
00 
00 00 
00 
00 
fc 
ff 
df 48 
89 
84 
24 
98 
 __do_sys_futex kernel/futex.c:3587 [inline]
 __se_sys_futex kernel/futex.c:3555 [inline]
 __x64_sys_futex+0x472/0x6a0 kernel/futex.c:3555
RSP: 0018:ffff88019c9a4f30 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 1ffff10033934a63 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620
RBP: ffff88019c9a52c0 R08: 0000000000000000 R09: 0000000000000000
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
R10: ffff88019cd57be0 R11: ffff88019d7d687b R12: 0000000000000000
R13: ffffffff88f92620 R14: ffff88019d7d6100 R15: 0000000000000002
FS:  00007efcd86f0700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88019c9a4f28 CR3: 00000001ac71f000 CR4: 00000000001406f0
DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 entry_SYSCALL_64_after_hwframe+0x49/0xbe