BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
PGD 80000001e7a6b067 P4D 80000001e7a6b067 PUD 1c1fa9067 PMD 0 
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 7351 Comm: kworker/0:3 Not tainted 4.18.0-rc8+ #32
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
RIP: 0010:kernel_accept+0x1f/0x140 net/socket.c:3246
Code: 5b 41 5e 5d c3 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 41 89 d7 49 89 f6 48 89 fb e8 65 2d ec fe 48 8b 43 20 <0f> b7 78 10 8b 80 f8 01 00 00 0f b6 d4 c1 e8 10 89 c6 4c 89 f1 e8 
RSP: 0018:ffff8801e696fde0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8801e153f9c0 RCX: ffff8802169aee00
RDX: 0000000000000000 RSI: ffff8801e696fe18 RDI: ffff8801e153f9c0
RBP: ffff8801e696fe08 R08: 0000000000000000 R09: ffff8801dd079e70
R10: ffff8801dd079e00 R11: ffffffff828df9b0 R12: ffff8801e79dc988
R13: ffff88021fc24800 R14: ffff8801e696fe18 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 00000001d298a000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 00000000200001c0 DR2: 0000000020000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:701 [inline]
 smc_tcp_listen_work+0x85/0x370 net/smc/af_smc.c:1114
 process_one_work+0x28e/0x580 kernel/workqueue.c:2153
 worker_thread+0x317/0x690 kernel/workqueue.c:2296
 kthread+0x127/0x140 kernel/kthread.c:247
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
CR2: 0000000000000010
---[ end trace 1f17fd174e72f464 ]---
RIP: 0010:kernel_accept+0x1f/0x140 net/socket.c:3246
Code: 5b 41 5e 5d c3 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 41 89 d7 49 89 f6 48 89 fb e8 65 2d ec fe 48 8b 43 20 <0f> b7 78 10 8b 80 f8 01 00 00 0f b6 d4 c1 e8 10 89 c6 4c 89 f1 e8 
RSP: 0018:ffff8801e696fde0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8801e153f9c0 RCX: ffff8802169aee00
RDX: 0000000000000000 RSI: ffff8801e696fe18 RDI: ffff8801e153f9c0
RBP: ffff8801e696fe08 R08: 0000000000000000 R09: ffff8801dd079e70
R10: ffff8801dd079e00 R11: ffffffff828df9b0 R12: ffff8801e79dc988
R13: ffff88021fc24800 R14: ffff8801e696fe18 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 00000001d298a000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 00000000200001c0 DR2: 0000000020000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600