kasan: CONFIG_KASAN_INLINE enabled
kobject: 'loop1' (00000000d19ecdbc): kobject_uevent_env
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8699 Comm: kworker/1:5 Not tainted 4.20.0-rc4+ #327
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
kobject: 'loop1' (00000000d19ecdbc): fill_kobj_path: path = '/devices/virtual/block/loop1'
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
RSP: 0018:ffff8881b5d4f5b0 EFLAGS: 00010206
kobject: 'loop3' (000000004e8f2f33): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1103a46ad69
kobject: 'loop3' (000000004e8f2f33): fill_kobj_path: path = '/devices/virtual/block/loop3'
RDX: 000000000000006a RSI: ffffffff8624c77f RDI: 0000000000000350
RBP: ffff8881b5d4f5e0 R08: ffff8881d2356b48 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881d2356280 R12: ffff8881b5d4f690
R13: ffff888189209040 R14: 0000000000000000 R15: ffff8881b742aff8
FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
kobject: 'loop4' (000000001fdb5c48): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0cd9940db8 CR3: 00000001b635f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop4' (000000001fdb5c48): fill_kobj_path: path = '/devices/virtual/block/loop4'
 smc_clcsock_accept net/smc/af_smc.c:840 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1307
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
kobject: 'loop0' (00000000c2006dbf): kobject_uevent_env
---[ end trace a49b9a281863d143 ]---
kobject: 'loop0' (00000000c2006dbf): fill_kobj_path: path = '/devices/virtual/block/loop0'
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: 'loop5' (0000000042b9c76d): kobject_uevent_env
RSP: 0018:ffff8881b5d4f5b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1103a46ad69
kobject: 'loop5' (0000000042b9c76d): fill_kobj_path: path = '/devices/virtual/block/loop5'
RDX: 000000000000006a RSI: ffffffff8624c77f RDI: 0000000000000350
RBP: ffff8881b5d4f5e0 R08: ffff8881d2356b48 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881d2356280 R12: ffff8881b5d4f690
R13: ffff888189209040 R14: 0000000000000000 R15: ffff8881b742aff8
FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb7e1b8330 CR3: 000000000946a000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
kobject: 'loop2' (000000006c47bf71): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop2' (000000006c47bf71): fill_kobj_path: path = '/devices/virtual/block/loop2'