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-rc6+ #340
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
RIP: 0010:kernel_accept+0x34/0x310 net/socket.c:3242
Code: d6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 11 0d 5b fb 49 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 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
kobject: 'loop0' (0000000065795e15): kobject_uevent_env
RSP: 0000:ffff8881d9b1f5b0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8881c69752c0 RCX: 1ffff1103b362579
RDX: 0000000000000004 RSI: ffffffff8624777f RDI: 0000000000000020
RBP: ffff8881d9b1f5e0 R08: ffff8881d9b12bc8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881d9b12300 R12: ffff8881d9b1f690
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881b5b1f8f8
kobject: 'loop0' (0000000065795e15): fill_kobj_path: path = '/devices/virtual/block/loop0'
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'loop1' (00000000b938a247): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff33b030ea0 CR3: 000000018e490000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop1' (00000000b938a247): fill_kobj_path: path = '/devices/virtual/block/loop1'
 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
kobject: 'loop0' (0000000065795e15): kobject_uevent_env
kobject: 'loop0' (0000000065795e15): fill_kobj_path: path = '/devices/virtual/block/loop0'
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
kobject: 'loop1' (00000000b938a247): kobject_uevent_env
kobject: 'loop1' (00000000b938a247): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'hwsim4' (000000008d97fa35): kobject_add_internal: parent: 'mac80211_hwsim', set: 'devices'
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
kobject: 'hwsim4' (000000008d97fa35): kobject_uevent_env
---[ end trace dffefe0d7539b80d ]---
kobject: 'rx-0' (00000000b7c97812): kobject_cleanup, parent 00000000c9eb718c
RIP: 0010:kernel_accept+0x34/0x310 net/socket.c:3242
Code: d6 41 55 49 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 11 0d 5b fb 49 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 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
kobject: 'rx-0' (00000000b7c97812): auto cleanup 'remove' event
kobject: 'hwsim4' (000000008d97fa35): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim4'
RSP: 0000:ffff8881d9b1f5b0 EFLAGS: 00010202
kobject: 'loop4' (00000000e8c9f88a): kobject_uevent_env
RAX: dffffc0000000000 RBX: ffff8881c69752c0 RCX: 1ffff1103b362579
kobject: 'loop4' (00000000e8c9f88a): fill_kobj_path: path = '/devices/virtual/block/loop4'
RDX: 0000000000000004 RSI: ffffffff8624777f RDI: 0000000000000020
kobject: 'rx-0' (00000000b7c97812): kobject_uevent_env
RBP: ffff8881d9b1f5e0 R08: ffff8881d9b12bc8 R09: 0000000000000006
kobject: 'hwsim4' (000000008d97fa35): kobject_uevent_env
R10: 0000000000000000 R11: ffff8881d9b12300 R12: ffff8881d9b1f690
kobject: 'rx-0' (00000000b7c97812): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'hwsim4' (000000008d97fa35): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim4'
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881b5b1f8f8
kobject: 'rx-0' (00000000b7c97812): auto cleanup kobject_del
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'loop4' (00000000e8c9f88a): kobject_uevent_env
kobject: 'rx-0' (00000000b7c97812): calling ktype release
kobject: 'loop4' (00000000e8c9f88a): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'rx-0': free name
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7e91fd2000 CR3: 00000001c34cd000 CR4: 00000000001406f0
kobject: 'tx-0' (00000000cab4d4db): kobject_cleanup, parent 00000000c9eb718c
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'tx-0' (00000000cab4d4db): auto cleanup 'remove' event