kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 4.20.0-rc4+ #138
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
RIP: 0010:inet_accept+0x106/0x9e0 net/ipv4/af_inet.c:734
Code: 09 80 fa 03 0f 8e 54 07 00 00 41 c7 86 40 ff ff ff ea ff ff ff 48 8d 78 28 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 56 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffff8881d9b0f478 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000005
kobject: 'loop2' (00000000ab334a28): kobject_uevent_env
RDX: dffffc0000000000 RSI: ffffffff86b41dc3 RDI: 0000000000000028
RBP: ffff8881d9b0f5a0 R08: ffff8881d9b00300 R09: ffffed10398ef14f
kobject: 'loop2' (00000000ab334a28): fill_kobj_path: path = '/devices/virtual/block/loop2'
R10: ffffed10398ef14f R11: ffff8881cc778a7b R12: ffff8881cc7789c0
R13: ffff8881d9b0f4b8 R14: ffff8881d9b0f578 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fa21000 CR3: 00000001bf5bc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kernel_accept+0x136/0x310 net/socket.c:3250
 smc_clcsock_accept net/smc/af_smc.c:837 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1305
 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:
---[ end trace c0e16d8ec99a0893 ]---
RIP: 0010:inet_accept+0x106/0x9e0 net/ipv4/af_inet.c:734
kobject: 'loop3' (000000001e9e77ce): kobject_uevent_env
Code: 09 80 fa 03 0f 8e 54 07 00 00 41 c7 86 40 ff ff ff ea ff ff ff 48 8d 78 28 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 56 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b
kobject: 'loop3' (000000001e9e77ce): fill_kobj_path: path = '/devices/virtual/block/loop3'
RSP: 0018:ffff8881d9b0f478 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000005
kobject: 'loop5' (000000000e82bc5b): kobject_uevent_env
RDX: dffffc0000000000 RSI: ffffffff86b41dc3 RDI: 0000000000000028
kobject: 'loop5' (000000000e82bc5b): fill_kobj_path: path = '/devices/virtual/block/loop5'
RBP: ffff8881d9b0f5a0 R08: ffff8881d9b00300 R09: ffffed10398ef14f
kobject: '506B:FFFFFF80:0005.0001' (000000008fa306db): kobject_add_internal: parent: 'uhid', set: 'devices'
R10: ffffed10398ef14f R11: ffff8881cc778a7b R12: ffff8881cc7789c0
R13: ffff8881d9b0f4b8 R14: ffff8881d9b0f578 R15: dffffc0000000000
kobject: 'loop4' (00000000a4efb1d5): kobject_uevent_env
kobject: '506B:FFFFFF80:0005.0001' (000000008fa306db): kobject_uevent_env
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'loop4' (00000000a4efb1d5): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '506B:FFFFFF80:0005.0001' (000000008fa306db): fill_kobj_path: path = '/devices/virtual/misc/uhid/506B:FFFFFF80:0005.0001'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop1' (000000003e1949ec): kobject_uevent_env
CR2: 00007f28ac0321c4 CR3: 000000018883b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
hid-generic 506B:FFFFFF80:0005.0001: unknown main item tag 0x0
kobject: 'loop1' (000000003e1949ec): fill_kobj_path: path = '/devices/virtual/block/loop1'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop2' (00000000ab334a28): kobject_uevent_env