RAX: ffffffffffffffda RBX: 00007f944b26c6d4 RCX: 0000000000455319
RDX: 00000000000003f8 RSI: 0000000020001540 RDI: 0000000000000007
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013
R13: 0000000000000042 R14: 00000000006f36d0 R15: 0000000000000003
BUG: unable to handle kernel paging request at ffff8802adeb6c7f
PGD af1c067 P4D af1c067 PUD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 2371 Comm: udevd Not tainted 4.16.0+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:slab_put_obj mm/slab.c:2625 [inline]
RIP: 0010:free_block+0x155/0x280 mm/slab.c:3418
RSP: 0018:ffff8801cae87a30 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff8801db133fe8 RCX: 00000000ffffffff
RDX: ffff8801adeb6c80 RSI: ffff8801adeb6c80 RDI: 0000000000000000
RBP: ffff8801cae87a78 R08: 0000000006b7ad80 R09: ffffed003b580340
R10: ffffed003b580340 R11: ffff8801dac01a03 R12: ffffea0006b7ada0
R13: ffff8801dac00dc0 R14: ffff8801dac01a00 R15: ffffea0006b7ad80
FS:  00007fded27207a0(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8802adeb6c7f CR3: 00000001cad57000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 cache_flusharray mm/slab.c:3469 [inline]
 ___cache_free+0x20a/0x2f0 mm/slab.c:3527
 qlink_free mm/kasan/quarantine.c:147 [inline]
 qlist_free_all+0x8c/0x160 mm/kasan/quarantine.c:166
 quarantine_reduce+0x141/0x170 mm/kasan/quarantine.c:259
 kasan_kmalloc+0x99/0xe0 mm/kasan/kasan.c:538
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 slab_post_alloc_hook mm/slab.h:444 [inline]
 slab_alloc mm/slab.c:3392 [inline]
 kmem_cache_alloc+0x11b/0x760 mm/slab.c:3552
 getname_flags+0xd0/0x5a0 fs/namei.c:140
 user_path_at_empty+0x2d/0x50 fs/namei.c:2555
 do_readlinkat+0x143/0x3e0 fs/stat.c:394
 SYSC_readlink fs/stat.c:427 [inline]
 SyS_readlink+0x2a/0x40 fs/stat.c:424
 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7fded1e29577
RSP: 002b:00007ffc3da6fe18 EFLAGS: 00000206 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 00000000013cb250 RCX: 00007fded1e29577
RDX: 00000000000003fc RSI: 00007ffc3da70244 RDI: 00007ffc3da6fe40
RBP: 00000000000003fc R08: 00000000013cb0d0 R09: 00007fded1e7e1d0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 0000000000000000 R14: 00000000013d0d10 R15: 00000000013cb250
Code: f1 41 0f b6 4d 1c 48 c1 ee 20 29 f0 d3 e8 41 0f b6 4d 1d 01 f0 49 8b 77 10 d3 e8 8d 4f ff 41 89 4f 18 48 85 f6 0f 84 05 01 00 00 <88> 04 0e 41 8b 47 18 85 c0 0f 84 e3 fe ff ff 49 8b 4e 40 4d 8d 
RIP: slab_put_obj mm/slab.c:2625 [inline] RSP: ffff8801cae87a30
RIP: free_block+0x155/0x280 mm/slab.c:3418 RSP: ffff8801cae87a30
CR2: ffff8802adeb6c7f
---[ end trace d5a3a0350750d99f ]---