bridge0: port 2(bridge_slave_1) entered disabled state
bridge_slave_0: left allmulticast mode
bridge_slave_0: left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
=====================================================
BUG: KMSAN: uninit-value in netpoll_poll_disable+0x9b/0xa0 net/core/netpoll.c:225
 netpoll_poll_disable+0x9b/0xa0 net/core/netpoll.c:225
 __dev_close_many+0x136/0x560 net/core/dev.c:1532
 dev_close_many+0x458/0x920 net/core/dev.c:1585
 unregister_netdevice_many_notify+0x9c0/0x38d0 net/core/dev.c:11377
 unregister_netdevice_many+0x22/0x30 net/core/dev.c:11465
 cleanup_net+0xedf/0x1c00 net/core/net_namespace.c:621
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3310
 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3391
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Local variable buffer created at:
 proc_fork_connector+0x3a/0x480 drivers/connector/cn_proc.c:121
 copy_process+0x59ce/0x5c20 kernel/fork.c:2596

CPU: 0 UID: 0 PID: 12561 Comm: kworker/u8:1 Not tainted 6.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: netns cleanup_net

=====================================================