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: 10531 Comm: kworker/0:4 Not tainted 4.20.0-rc3+ #203 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 31 63 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: 'loop2' (000000001de8b833): kobject_uevent_env RSP: 0018:ffff8881ba1df5b0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888190cd2a80 RCX: 1ffff11032b4fd91 RDX: 0000000000000004 RSI: ffffffff862427bf RDI: 0000000000000020 RBP: ffff8881ba1df5e0 R08: ffff888195a7ec88 R09: 0000000000000006 kobject: 'loop2' (000000001de8b833): fill_kobj_path: path = '/devices/virtual/block/loop2' R10: 0000000000000000 R11: ffff888195a7e3c0 R12: ffff8881ba1df690 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881905e9038 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc5e50d678 CR3: 00000001974b7000 CR4: 00000000001406f0 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 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: kobject: 'loop5' (00000000ffd28935): kobject_uevent_env kobject: 'loop5' (00000000ffd28935): fill_kobj_path: path = '/devices/virtual/block/loop5' ---[ end trace f15bd18f4183901b ]--- 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 31 63 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 IPVS: ftp: loaded support on port[0] = 21 RSP: 0018:ffff8881ba1df5b0 EFLAGS: 00010202 kobject: 'lo' (00000000764915c4): kobject_add_internal: parent: 'net', set: 'devices' RAX: dffffc0000000000 RBX: ffff888190cd2a80 RCX: 1ffff11032b4fd91 kobject: 'loop0' (000000009b3c9613): kobject_uevent_env RDX: 0000000000000004 RSI: ffffffff862427bf RDI: 0000000000000020 kobject: 'loop0' (000000009b3c9613): fill_kobj_path: path = '/devices/virtual/block/loop0' RBP: ffff8881ba1df5e0 R08: ffff888195a7ec88 R09: 0000000000000006 kobject: 'lo' (00000000764915c4): kobject_uevent_env R10: 0000000000000000 R11: ffff888195a7e3c0 R12: ffff8881ba1df690 kobject: 'lo' (00000000764915c4): fill_kobj_path: path = '/devices/virtual/net/lo' kobject: 'queues' (000000001b0a47de): kobject_add_internal: parent: 'lo', set: '' R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881905e9038 kobject: 'queues' (000000001b0a47de): kobject_uevent_env FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'queues' (000000001b0a47de): kobject_uevent_env: filter function caused the event to drop! CR2: 0000000000625208 CR3: 00000001cb864000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'rx-0' (00000000d24f5101): kobject_add_internal: parent: 'queues', set: 'queues' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400