BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.1/31294 caller is debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:60 CPU: 1 PID: 31294 Comm: syz-executor.1 Tainted: G W 6.1.75-syzkaller-00108-g3ca4271578e1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106 dump_stack+0x15/0x1b lib/dump_stack.c:113 check_preemption_disabled+0x109/0x110 lib/smp_processor_id.c:49 debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:60 rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:721 kernel_text_address+0x83/0xe0 kernel/extable.c:113 __kernel_text_address+0xd/0x40 kernel/extable.c:79 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_frame.c:19 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:379 [inline] __kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388 kasan_kmalloc include/linux/kasan.h:212 [inline] __do_kmalloc_node mm/slab_common.c:957 [inline] __kmalloc_node+0xb4/0x1e0 mm/slab_common.c:964 kmalloc_node include/linux/slab.h:579 [inline] __bpf_map_area_alloc kernel/bpf/syscall.c:328 [inline] bpf_map_area_alloc+0x4f/0xf0 kernel/bpf/syscall.c:341 dev_map_alloc+0x3a/0x770 kernel/bpf/devmap.c:166 find_and_alloc_map kernel/bpf/syscall.c:133 [inline] map_create+0x44a/0xcf0 kernel/bpf/syscall.c:1108 __sys_bpf+0x2e6/0x7f0 kernel/bpf/syscall.c:4963 __do_sys_bpf kernel/bpf/syscall.c:5085 [inline] __se_sys_bpf kernel/bpf/syscall.c:5083 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5083 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f935a67dde9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f935b4850c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f935a7ac120 RCX: 00007f935a67dde9 RDX: 0000000000000048 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 00007f935a6ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f935a7ac120 R15: 00007ffca18eddb8