BUG: using smp_processor_id() in preemptible [00000000] code: syz.0.2137/9813
caller is debug_smp_processor_id+0x20/0x2c lib/smp_processor_id.c:58
CPU: 0 UID: 0 PID: 9813 Comm: syz.0.2137 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
Call trace:
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7c/0xb0 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 check_preemption_disabled+0xdc/0xe4 lib/smp_processor_id.c:47
 debug_smp_processor_id+0x20/0x2c lib/smp_processor_id.c:58
 bpf_mem_cache_free_rcu+0x40/0xc0 kernel/bpf/memalloc.c:954
 rhtab_delete_elem+0x68c/0x11e4 kernel/bpf/hashtab.c:2969
 __rhtab_map_lookup_and_delete_batch+0x574/0x9e0 kernel/bpf/hashtab.c:3349
 rhtab_map_lookup_and_delete_batch+0x14/0x20 kernel/bpf/hashtab.c:3390
 bpf_map_do_batch+0x25c/0x414 kernel/bpf/syscall.c:5834
 __sys_bpf+0xb40/0x2b60 kernel/bpf/syscall.c:6483
 __do_sys_bpf kernel/bpf/syscall.c:6537 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:6534 [inline]
 __arm64_sys_bpf+0xac/0x108 kernel/bpf/syscall.c:6534
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x74/0x240 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x58/0x2a4 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594