------------[ cut here ]------------
kernel BUG at mm/slab.c:2967!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3876 Comm: udevd Not tainted 5.1.0-rc3+ #157
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:alloc_block mm/slab.c:2967 [inline]
RIP: 0010:cache_alloc_refill mm/slab.c:3026 [inline]
RIP: 0010:____cache_alloc mm/slab.c:3129 [inline]
RIP: 0010:____cache_alloc mm/slab.c:3112 [inline]
RIP: 0010:__do_cache_alloc mm/slab.c:3351 [inline]
RIP: 0010:slab_alloc mm/slab.c:3386 [inline]
RIP: 0010:kmem_cache_alloc+0x5fb/0x6f0 mm/slab.c:3556
Code: 45 c8 4c 89 62 08 48 89 53 08 48 89 4b 10 4c 89 60 48 41 f6 45 23 40 0f 84 3d ff ff ff 48 c7 43 20 00 00 00 00 e9 30 ff ff ff <0f> 0b 0f 0b c7 46 0c 01 00 00 00 e9 42 ff ff ff 0f 1f 44 00 00 8b
RSP: 0018:ffff8880986f7d18 EFLAGS: 00010082
RAX: 0000000000000001 RBX: ffffea0001987380 RCX: ffff88812c2b8638
RDX: ffff88812c2b8638 RSI: 0000000000000000 RDI: ffff88812c2b8600
RBP: ffff8880986f7d80 R08: 1ffff110130def90 R09: 0000000000000004
R10: ffffed10130def90 R11: 0000000000000003 R12: ffff88812c2d8dc0
R13: ffff88812c2d8dc0 R14: 0000000000000004 R15: ffffe8ffffd04830
FS:  00007f4cae3157a0(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cae31c000 CR3: 000000009861d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 getname_flags fs/namei.c:138 [inline]
 getname_flags+0xd6/0x5b0 fs/namei.c:128
 user_path_at_empty+0x2f/0x50 fs/namei.c:2606
 do_readlinkat+0xe9/0x320 fs/stat.c:399
 __do_sys_readlink fs/stat.c:432 [inline]
 __se_sys_readlink fs/stat.c:429 [inline]
 __x64_sys_readlink+0x78/0xb0 fs/stat.c:429
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f4cada1e577
Code: f0 ff ff 77 02 f3 c3 48 8b 15 bd 38 2b 00 f7 d8 64 89 02 83 c8 ff c3 90 90 90 90 90 90 90 90 90 90 90 90 b8 59 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 38 2b 00 31 d2 48 29 c2 64
RSP: 002b:00007fff6f4ad968 EFLAGS: 00000202 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 0000000002335250 RCX: 00007f4cada1e577
RDX: 00000000000003fc RSI: 00007fff6f4add94 RDI: 00007fff6f4ad990
RBP: 00000000000003fc R08: 00000000023350d0 R09: 00007f4cada731d0
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 000000000234e950 R15: 0000000002335250
Modules linked in:
---[ end trace 5b323bef12523f48 ]---
RIP: 0010:alloc_block mm/slab.c:2967 [inline]
RIP: 0010:cache_alloc_refill mm/slab.c:3026 [inline]
RIP: 0010:____cache_alloc mm/slab.c:3129 [inline]
RIP: 0010:____cache_alloc mm/slab.c:3112 [inline]
RIP: 0010:__do_cache_alloc mm/slab.c:3351 [inline]
RIP: 0010:slab_alloc mm/slab.c:3386 [inline]
RIP: 0010:kmem_cache_alloc+0x5fb/0x6f0 mm/slab.c:3556
Code: 45 c8 4c 89 62 08 48 89 53 08 48 89 4b 10 4c 89 60 48 41 f6 45 23 40 0f 84 3d ff ff ff 48 c7 43 20 00 00 00 00 e9 30 ff ff ff <0f> 0b 0f 0b c7 46 0c 01 00 00 00 e9 42 ff ff ff 0f 1f 44 00 00 8b
RSP: 0018:ffff8880986f7d18 EFLAGS: 00010082
RAX: 0000000000000001 RBX: ffffea0001987380 RCX: ffff88812c2b8638
RDX: ffff88812c2b8638 RSI: 0000000000000000 RDI: ffff88812c2b8600
RBP: ffff8880986f7d80 R08: 1ffff110130def90 R09: 0000000000000004
R10: ffffed10130def90 R11: 0000000000000003 R12: ffff88812c2d8dc0
R13: ffff88812c2d8dc0 R14: 0000000000000004 R15: ffffe8ffffd04830
FS:  00007f4cae3157a0(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cae31c000 CR3: 000000009861d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400