RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f59395266d4 R13: 00000000004c3a08 R14: 00000000004dae58 R15: 0000000000000007 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: 9278 Comm: kworker/0:6 Not tainted 4.20.0-rc6+ #371 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 b1 dc 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: 'loop4' (0000000014a09a1f): kobject_uevent_env RSP: 0018:ffff88817b82f5b0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8881ba24d240 RCX: 1ffff1103805c129 RDX: 0000000000000004 RSI: ffffffff8623a7bf RDI: 0000000000000020 RBP: ffff88817b82f5e0 R08: ffff8881c02e0948 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8881c02e0080 R12: ffff88817b82f690 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88818679d078 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 kobject: 'loop4' (0000000014a09a1f): fill_kobj_path: path = '/devices/virtual/block/loop4' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000072c028 CR3: 00000001b25a2000 CR4: 00000000001426f0 DR0: 0000000020000000 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 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 235327c785637846 ]--- 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 b1 dc 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 RSP: 0018:ffff88817b82f5b0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8881ba24d240 RCX: 1ffff1103805c129 RDX: 0000000000000004 RSI: ffffffff8623a7bf RDI: 0000000000000020 RBP: ffff88817b82f5e0 R08: ffff8881c02e0948 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8881c02e0080 R12: ffff88817b82f690 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88818679d078 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop3' (0000000001568ea9): kobject_uevent_env CR2: 0000001b31028000 CR3: 00000001cf2cd000 CR4: 00000000001426f0 kobject: 'loop3' (0000000001568ea9): fill_kobj_path: path = '/devices/virtual/block/loop3' DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400