general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 2724 Comm: kworker/0:5 Not tainted 4.20.0-rc3+ #309
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
kobject: 'loop4' (00000000cf24771e): kobject_uevent_env
RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3245
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 20 48 8d bb 50 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 14 02 00 00 48 8d 7b 10 0f b6
kobject: 'loop4' (00000000cf24771e): fill_kobj_path: path = '/devices/virtual/block/loop4'
RSP: 0018:ffff8881b8d1f5b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110328bd9c1
RDX: 000000000000006a RSI: ffffffff8624377f RDI: 0000000000000350
RBP: ffff8881b8d1f5e0 R08: ffff8881945ece08 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881945ec540 R12: ffff8881b8d1f690
kobject: 'lo' (00000000a57c0e91): kobject_add_internal: parent: 'net', set: 'devices'
R13: ffff8881b66b8900 R14: 0000000000000000 R15: ffff888194f39338
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005601a9aabaa8 CR3: 0000000195359000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop5' (000000000bb997a4): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:834 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1302
kobject: 'loop5' (000000000bb997a4): fill_kobj_path: path = '/devices/virtual/block/loop5'
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
kobject: 'loop0' (0000000032fc5c16): kobject_uevent_env
kobject: 'lo' (00000000a57c0e91): kobject_uevent_env
kobject: 'loop0' (0000000032fc5c16): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'lo' (00000000a57c0e91): fill_kobj_path: path = '/devices/virtual/net/lo'
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
kobject: 'loop0' (0000000032fc5c16): kobject_uevent_env
kobject: 'loop0' (0000000032fc5c16): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queues' (00000000bd0d1ade): kobject_add_internal: parent: 'lo', set: '<NULL>'
 kthread+0x35a/0x440 kernel/kthread.c:246
kobject: 'queues' (00000000bd0d1ade): kobject_uevent_env
kobject: 'queues' (00000000bd0d1ade): kobject_uevent_env: filter function caused the event to drop!
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 93887aa3eccf1ac7 ]---
RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3245
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 20 48 8d bb 50 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 14 02 00 00 48 8d 7b 10 0f b6
kobject: 'loop0' (0000000032fc5c16): kobject_uevent_env
kobject: 'loop0' (0000000032fc5c16): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'rx-0' (000000001bc01a95): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'loop5' (000000000bb997a4): kobject_uevent_env
RSP: 0018:ffff8881b8d1f5b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110328bd9c1
kobject: 'loop5' (000000000bb997a4): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'rx-0' (000000001bc01a95): kobject_uevent_env
RDX: 000000000000006a RSI: ffffffff8624377f RDI: 0000000000000350
kobject: 'rx-0' (000000001bc01a95): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0'
RBP: ffff8881b8d1f5e0 R08: ffff8881945ece08 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881945ec540 R12: ffff8881b8d1f690
kobject: 'tx-0' (000000005fc49f7e): kobject_add_internal: parent: 'queues', set: 'queues'
R13: ffff8881b66b8900 R14: 0000000000000000 R15: ffff888194f39338
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'tx-0' (000000005fc49f7e): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fecf289e000 CR3: 00000001cb5de000 CR4: 00000000001406f0
kobject: 'tx-0' (000000005fc49f7e): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400