bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): Released all slaves
------------[ cut here ]------------
WARNING: CPU: 0 PID: 12499 at kernel/workqueue.c:633 set_work_data kernel/workqueue.c:633 [inline]
WARNING: CPU: 0 PID: 12499 at kernel/workqueue.c:633 clear_work_data kernel/workqueue.c:696 [inline]
WARNING: CPU: 0 PID: 12499 at kernel/workqueue.c:633 __cancel_work_timer+0x4d1/0x570 kernel/workqueue.c:3172
Modules linked in:
CPU: 0 PID: 12499 Comm: kworker/u4:21 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:set_work_data kernel/workqueue.c:633 [inline]
RIP: 0010:clear_work_data kernel/workqueue.c:696 [inline]
RIP: 0010:__cancel_work_timer+0x4d1/0x570 kernel/workqueue.c:3172
Code: e8 e4 5f 0c 00 e9 e1 fb ff ff e8 6a 02 2b 00 e8 a5 dc ea 07 e9 51 fd ff ff e8 5b 02 2b 00 0f 0b e9 a6 fc ff ff e8 4f 02 2b 00 <0f> 0b e9 c0 fd ff ff e8 e3 6f 71 00 e9 fd fe ff ff e8 39 02 2b 00
RSP: 0018:ffffc900041cf8d8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880792e9d00 RSI: ffffffff814c7041 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff814c6e00 R11: 0000000000000000 R12: ffff8880258ad4b0
R13: 1ffff92000839f1c R14: 0000000000000001 R15: ffff8880792e9d00
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f17173a4000 CR3: 000000000b68e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 batadv_dat_free+0x41/0xe0 net/batman-adv/distributed-arp-table.c:840
 batadv_mesh_free+0x85/0x170 net/batman-adv/main.c:270
 batadv_softif_free+0x11/0x20 net/batman-adv/soft-interface.c:983
 netdev_run_todo+0x6b4/0xa80 net/core/dev.c:10624
 default_device_exit_batch+0x2ff/0x3c0 net/core/dev.c:11605
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:593
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>