BUG: scheduling while atomic: kworker/u4:3/377/0x00000002
Modules linked in:
Preemption disabled at:
[<ffffffff8285d427>] ida_free+0x177/0x420 lib/idr.c:497
CPU: 1 PID: 377 Comm: kworker/u4:3 Tainted: G        W         5.15.148-syzkaller-00718-g993bed180178 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 dump_stack+0x15/0x17 lib/dump_stack.c:113
 __schedule_bug+0x195/0x260 kernel/sched/core.c:5707
 schedule_debug kernel/sched/core.c:5734 [inline]
 __schedule+0xd19/0x1590 kernel/sched/core.c:6402
 schedule+0x11f/0x1e0 kernel/sched/core.c:6595
 synchronize_rcu_expedited+0x49d/0x600 kernel/rcu/tree_exp.h:946
 synchronize_rcu+0x88/0x120 kernel/rcu/tree.c:3798
 synchronize_net+0x39/0x40 net/core/dev.c:11011
 nf_conntrack_cleanup_net_list+0x28/0x2c0 net/netfilter/nf_conntrack_core.c:2569
 nf_conntrack_pernet_exit+0x18f/0x1a0 net/netfilter/nf_conntrack_standalone.c:1202
 ops_exit_list net/core/net_namespace.c:174 [inline]
 cleanup_net+0x6ce/0xc00 net/core/net_namespace.c:596
 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
 kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>