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: 1 PID: 22 Comm: kworker/1:1 Not tainted 4.20.0-rc6+ #153
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
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:ffff8881d944f5b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1103b2881d1
RDX: 000000000000006a RSI: ffffffff8623d7bf RDI: 0000000000000350
kobject: 'loop4' (00000000249966e4): kobject_uevent_env
RBP: ffff8881d944f5e0 R08: ffff8881d9440e88 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881d94405c0 R12: ffff8881d944f690
R13: ffff8881d455bb00 R14: 0000000000000000 R15: ffff88817e6370f8
FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop4' (00000000249966e4): fill_kobj_path: path = '/devices/virtual/block/loop4'
CR2: 0000000000708158 CR3: 00000001829b1000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:837 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1305
kobject: 'nullb0' (000000000c8c299d): kobject_uevent_env
kobject: 'nullb0' (000000000c8c299d): fill_kobj_path: path = '/devices/virtual/block/nullb0'
 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:
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
---[ end trace 6e3cf183ff932cd3 ]---
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: 'nullb0' (000000000c8c299d): kobject_uevent_env
RSP: 0018:ffff8881d944f5b0 EFLAGS: 00010206
kobject: 'nullb0' (000000000c8c299d): fill_kobj_path: path = '/devices/virtual/block/nullb0'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1103b2881d1
kobject: 'brport' (00000000096a2ece): kobject_uevent_env
RDX: 000000000000006a RSI: ffffffff8623d7bf RDI: 0000000000000350
kobject: 'brport' (00000000096a2ece): kobject_uevent_env: filter function caused the event to drop!
RBP: ffff8881d944f5e0 R08: ffff8881d9440e88 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881d94405c0 R12: ffff8881d944f690
R13: ffff8881d455bb00 R14: 0000000000000000 R15: ffff88817e6370f8
FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 00000001b4127000 CR4: 00000000001426e0
device bridge_slave_0 left promiscuous mode
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
bridge0: port 1(bridge_slave_0) entered disabled state