kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access device bond_slave_1 entered promiscuous mode general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3422 Comm: kworker/0:2 Not tainted 4.20.0-rc4+ #322 bond0: Enslaving bond_slave_1 as an active interface with an up link 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:ffff8881c649f5b0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11038c92121 RDX: 000000000000006a RSI: ffffffff8624b77f RDI: 0000000000000350 RBP: ffff8881c649f5e0 R08: ffff8881c6490908 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8881c6490040 R12: ffff8881c649f690 kobject: 'bonding_slave' (00000000eec16bd1): kobject_cleanup, parent 000000009c1cb972 R13: ffff888189464a00 R14: 0000000000000000 R15: ffff888186113238 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5f47b45330 CR3: 00000001d3386000 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: 'bonding_slave' (00000000eec16bd1): does not have a release() function, it is broken and must be fixed. process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 kobject: 'bonding_slave' (00000000eec16bd1): auto cleanup kobject_del kobject: 'bonding_slave': free name kobject: 'loop1' (00000000eb18e1e8): kobject_uevent_env kobject: 'loop1' (00000000eb18e1e8): fill_kobj_path: path = '/devices/virtual/block/loop1' 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: bond0: Releasing backup interface bond_slave_1 ---[ end trace 72b5dbc68fa510fd ]--- kobject: 'loop4' (00000000c2c019d2): kobject_uevent_env RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3245 bond0: the permanent HWaddr of bond_slave_1 - a2:c1:b2:c8:30:11 - is still in use by bond0 - set the HWaddr of bond_slave_1 to a different address to avoid conflicts 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: 'loop4' (00000000c2c019d2): fill_kobj_path: path = '/devices/virtual/block/loop4' RSP: 0018:ffff8881c649f5b0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11038c92121 RDX: 000000000000006a RSI: ffffffff8624b77f RDI: 0000000000000350 RBP: ffff8881c649f5e0 R08: ffff8881c6490908 R09: 0000000000000006 R10: 0000000000000000 R11: ffff8881c6490040 R12: ffff8881c649f690 kobject: 'loop5' (00000000240c7491): kobject_uevent_env R13: ffff888189464a00 R14: 0000000000000000 R15: ffff888186113238 FS: 0000000000000000(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000708158 CR3: 000000000946a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400