bond0 (unregistering): Releasing backup interface bond_slave_1
device bond_slave_1 left promiscuous mode
bond0 (unregistering): Releasing backup interface bond_slave_0
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: 26 Comm: kworker/u4:2 Not tainted 4.19.98-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:hsr_netdev_notify+0x525/0xa40 net/hsr/hsr_main.c:64
Code: e6 e8 bf 0f 20 fa 41 83 fc 04 75 a5 e8 34 0e 20 fa 48 8d 43 10 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 8e 04 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b
RSP: 0018:ffff8880a99af5a0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff874b0731
RDX: 0000000000000002 RSI: ffffffff874b073c RDI: 0000000000000005
RBP: ffff8880a99af5e8 R08: ffff8880a99a0700 R09: fffffbfff1341ea5
R10: fffffbfff1341ea4 R11: ffffffff89a0f527 R12: 0000000000000001
R13: ffff88808a3c9dc0 R14: dffffc0000000000 R15: ffff888048d4b290
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c4446bb000 CR3: 0000000081e06000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 notifier_call_chain+0xc2/0x230 kernel/notifier.c:93
 __raw_notifier_call_chain kernel/notifier.c:394 [inline]
 raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1748
 call_netdevice_notifiers+0x79/0xa0 net/core/dev.c:1766
 __bond_release_one+0x11af/0x16a0 drivers/net/bonding/bond_main.c:1956
 bond_slave_netdev_event drivers/net/bonding/bond_main.c:3113 [inline]
 bond_netdev_event+0x9b5/0xb30 drivers/net/bonding/bond_main.c:3225
 notifier_call_chain+0xc2/0x230 kernel/notifier.c:93
 __raw_notifier_call_chain kernel/notifier.c:394 [inline]
 raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1748
 call_netdevice_notifiers net/core/dev.c:1766 [inline]
 rollback_registered_many+0x894/0xda0 net/core/dev.c:8200
 unregister_netdevice_many.part.0+0x1b/0x1f0 net/core/dev.c:9312
 unregister_netdevice_many net/core/dev.c:9311 [inline]
 default_device_exit_batch+0x34e/0x410 net/core/dev.c:9783
 ops_exit_list.isra.0+0xfc/0x150 net/core/net_namespace.c:156
 cleanup_net+0x404/0x960 net/core/net_namespace.c:553
 process_one_work+0x989/0x1750 kernel/workqueue.c:2153
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 8da7e0944ca65894 ]---
RIP: 0010:hsr_netdev_notify+0x525/0xa40 net/hsr/hsr_main.c:64
Code: e6 e8 bf 0f 20 fa 41 83 fc 04 75 a5 e8 34 0e 20 fa 48 8d 43 10 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 8e 04 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b
RSP: 0018:ffff8880a99af5a0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff874b0731
RDX: 0000000000000002 RSI: ffffffff874b073c RDI: 0000000000000005
RBP: ffff8880a99af5e8 R08: ffff8880a99a0700 R09: fffffbfff1341ea5
R10: fffffbfff1341ea4 R11: ffffffff89a0f527 R12: 0000000000000001
R13: ffff88808a3c9dc0 R14: dffffc0000000000 R15: ffff888048d4b290
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c4446bb000 CR3: 00000000a9406000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400