------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:729!
invalid opcode: 0000 [#1] SMP
CPU: 0 PID: 27618 Comm: kworker/u4:22 Not tainted 5.0.0+ #16
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound call_usermodehelper_exec_work
RIP: 0010:kmsan_internal_check_memory+0xb84/0xbb0 mm/kmsan/kmsan.c:727
Code: 65 8b 34 25 04 90 03 00 65 48 8b 14 25 90 0d 04 00 48 c7 c7 6c 6c 81 8b 31 c0 e8 b7 fd 79 ff 0f 0b 0f 0b e8 8e 22 56 ff 0f 0b <0f> 0b e8 75 d0 79 ff 85 c0 75 1f 65 8b 34 25 04 90 03 00 65 48 8b
RSP: 0018:ffff88818d12fa70 EFLAGS: 00010046
RAX: 0000000000000002 RBX: 00000000fda00032 RCX: ffff888000000000
RDX: 000007ffffffffff RSI: 0000000000000004 RDI: ffff88818d12fb8c
RBP: ffff88818d12fb20 R08: ffff88818d12fb8c R09: ffff88820d12fb8c
R10: ffff88818d13fb8c R11: 00000000ffff0a00 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000000000282 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd5a866d89 CR3: 0000000184c9c000 CR4: 00000000001406f0
Call Trace:
 kmsan_check_memory+0xd/0x10 mm/kmsan/kmsan.c:737
 kernel_wait4+0x4ba/0x5e0 kernel/exit.c:1671
 call_usermodehelper_exec_sync kernel/umh.c:149 [inline]
 call_usermodehelper_exec_work+0x1c7/0x540 kernel/umh.c:186
 process_one_work+0x1607/0x2010 kernel/workqueue.c:2173
 worker_thread+0x111c/0x2460 kernel/workqueue.c:2319
 kthread+0x4a1/0x4e0 kernel/kthread.c:247
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355
Modules linked in:
---[ end trace bad727dfe2ae3be4 ]---
RIP: 0010:kmsan_internal_check_memory+0xb84/0xbb0 mm/kmsan/kmsan.c:727
Code: 65 8b 34 25 04 90 03 00 65 48 8b 14 25 90 0d 04 00 48 c7 c7 6c 6c 81 8b 31 c0 e8 b7 fd 79 ff 0f 0b 0f 0b e8 8e 22 56 ff 0f 0b <0f> 0b e8 75 d0 79 ff 85 c0 75 1f 65 8b 34 25 04 90 03 00 65 48 8b
RSP: 0018:ffff88818d12fa70 EFLAGS: 00010046
RAX: 0000000000000002 RBX: 00000000fda00032 RCX: ffff888000000000
RDX: 000007ffffffffff RSI: 0000000000000004 RDI: ffff88818d12fb8c
RBP: ffff88818d12fb20 R08: ffff88818d12fb8c R09: ffff88820d12fb8c
R10: ffff88818d13fb8c R11: 00000000ffff0a00 R12: 0000000000000004
R13: 0000000000000004 R14: 0000000000000282 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88812fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd5a866d89 CR3: 0000000184c9c000 CR4: 00000000001406f0