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: 6241 Comm: kworker/0:3 Not tainted 4.20.0-rc6+ #343
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:ffff88819d0bf5b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110378fb9f9
kobject: 'loop0' (0000000026d32f7b): kobject_uevent_env
RDX: 000000000000006a RSI: ffffffff8624777f RDI: 0000000000000350
RBP: ffff88819d0bf5e0 R08: ffff8881bc7dcfc8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8881bc7dc700 R12: ffff88819d0bf690
R13: ffff8881c1cb74c0 R14: 0000000000000000 R15: ffff888199907078
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kobject: 'loop0' (0000000026d32f7b): fill_kobj_path: path = '/devices/virtual/block/loop0'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000728020 CR3: 0000000192299000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:840 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1307
kobject: 'loop1' (00000000ee4844fe): kobject_uevent_env
 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153
kobject: 'loop1' (00000000ee4844fe): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (0000000026d32f7b): kobject_uevent_env
kobject: 'loop0' (0000000026d32f7b): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000098cd9fca): kobject_uevent_env
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
kobject: 'loop4' (0000000098cd9fca): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000cbdc281f): kobject_uevent_env
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
kobject: 'loop3' (00000000cbdc281f): fill_kobj_path: path = '/devices/virtual/block/loop3'
---[ end trace b1ff3c039099c0a2 ]---
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:ffff88819d0bf5b0 EFLAGS: 00010206
kobject: 'loop5' (000000001ff7f818): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff110378fb9f9
RDX: 000000000000006a RSI: ffffffff8624777f RDI: 0000000000000350
RBP: ffff88819d0bf5e0 R08: ffff8881bc7dcfc8 R09: 0000000000000006
kobject: 'loop5' (000000001ff7f818): fill_kobj_path: path = '/devices/virtual/block/loop5'
R10: 0000000000000000 R11: ffff8881bc7dc700 R12: ffff88819d0bf690
R13: ffff8881c1cb74c0 R14: 0000000000000000 R15: ffff888199907078
FS:  0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop2' (0000000060b3c550): kobject_uevent_env
kobject: 'loop2' (0000000060b3c550): fill_kobj_path: path = '/devices/virtual/block/loop2'
CR2: 00007f8e98157518 CR3: 00000001c42f6000 CR4: 00000000001406f0
kobject: 'loop1' (00000000ee4844fe): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop1' (00000000ee4844fe): fill_kobj_path: path = '/devices/virtual/block/loop1'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop0' (0000000026d32f7b): kobject_uevent_env