BUG: using __this_cpu_add() in preemptible [00000000] code: kworker/u4:4/1456
caller is flow_offload_queue_work net/netfilter/nf_flow_table_offload.c:-1 [inline]
caller is nf_flow_offload_del+0xba/0x190 net/netfilter/nf_flow_table_offload.c:1108
CPU: 1 PID: 1456 Comm: kworker/u4:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: act_ct_workqueue tcf_ct_flow_table_cleanup_work
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 check_preemption_disabled+0x104/0x110 lib/smp_processor_id.c:49
 flow_offload_queue_work net/netfilter/nf_flow_table_offload.c:-1 [inline]
 nf_flow_offload_del+0xba/0x190 net/netfilter/nf_flow_table_offload.c:1108
 nf_flow_table_iterate+0x132/0x1e0 net/netfilter/nf_flow_table_core.c:404
 nf_flow_table_gc_run net/netfilter/nf_flow_table_core.c:435 [inline]
 nf_flow_table_free+0x12f/0x150 net/netfilter/nf_flow_table_core.c:604
 tcf_ct_flow_table_cleanup_work+0x29/0x1d0 net/sched/act_ct.c:344
 process_one_work+0x867/0xff0 kernel/workqueue.c:2310
 worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>