------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 1 PID: 3893 at kernel/locking/lockdep.c:2067 print_bfs_bug+0x34/0x48 kernel/locking/lockdep.c:2067 Modules linked in: CPU: 1 PID: 3893 Comm: dhcpcd Not tainted 6.1.26-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : print_bfs_bug+0x34/0x48 kernel/locking/lockdep.c:2067 lr : print_bfs_bug+0x34/0x48 kernel/locking/lockdep.c:2067 sp : ffff800020426cc0 x29: ffff800020426cc0 x28: 0000000000000003 x27: ffff0000c7920a58 x26: 00000000000003dd x25: ffff800019192e18 x24: ffff8000183c6000 x23: 1fffe00018f2414b x22: 0000000000000013 x21: ffff800019192da8 x20: 0000000000000001 x19: 00000000ffffffff x18: ffff800020426e40 x17: 0000000000000000 x16: ffff8000120e0c54 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001 x11: ff808000081ae818 x10: 0000000000000000 x9 : 3691702cd3d42000 x8 : 3691702cd3d42000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000204265b8 x4 : ffff800015672960 x3 : ffff800008585158 x2 : 0000000000000001 x1 : 0000000000000003 x0 : 0000000000000000 Call trace: print_bfs_bug+0x34/0x48 kernel/locking/lockdep.c:2067 check_irq_usage kernel/locking/lockdep.c:2792 [inline] check_prev_add kernel/locking/lockdep.c:3102 [inline] check_prevs_add kernel/locking/lockdep.c:3217 [inline] validate_chain kernel/locking/lockdep.c:3832 [inline] __lock_acquire+0x618c/0x764c kernel/locking/lockdep.c:5056 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5669 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154 update_cfs_rq_load_avg kernel/sched/fair.c:4026 [inline] update_load_avg+0x194/0x1278 kernel/sched/fair.c:4185 put_prev_entity+0x228/0x400 kernel/sched/fair.c:5082 pick_next_task_fair+0x3bc/0x944 kernel/sched/fair.c:7814 __pick_next_task kernel/sched/core.c:5864 [inline] pick_next_task kernel/sched/core.c:6373 [inline] __schedule+0x61c/0x1c98 kernel/sched/core.c:6518 preempt_schedule_common+0xf4/0x1e8 kernel/sched/core.c:6723 preempt_schedule+0x64/0x84 kernel/sched/core.c:6747 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0xa8/0xac kernel/locking/spinlock.c:194 __debug_check_no_obj_freed lib/debugobjects.c:1006 [inline] debug_check_no_obj_freed+0x4f0/0x50c lib/debugobjects.c:1027 free_pages_prepare mm/page_alloc.c:1466 [inline] free_pcp_prepare mm/page_alloc.c:1510 [inline] free_unref_page_prepare+0x450/0x1070 mm/page_alloc.c:3388 free_unref_page+0x80/0x444 mm/page_alloc.c:3484 free_the_page mm/page_alloc.c:770 [inline] __free_pages+0x1a0/0x1cc mm/page_alloc.c:5648 __free_slab+0x110/0x29c mm/slub.c:2016 free_slab mm/slub.c:2031 [inline] discard_slab+0x5c/0xdc mm/slub.c:2037 __unfreeze_partials+0x158/0x198 mm/slub.c:2586 put_cpu_partial+0x18c/0x1fc mm/slub.c:2662 __slab_free+0x1a0/0x26c mm/slub.c:3538 do_slab_free mm/slub.c:3615 [inline] ___cache_free+0x164/0x198 mm/slub.c:3668 qlink_free+0x5c/0xac mm/kasan/quarantine.c:168 qlist_free_all+0x40/0xcc mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x124/0x130 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x2c/0x8c mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x74/0x458 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x230/0x37c mm/slub.c:3422 mt_alloc_one lib/maple_tree.c:152 [inline] mas_alloc_nodes+0x228/0x704 lib/maple_tree.c:1277 mas_node_count_gfp lib/maple_tree.c:1359 [inline] mas_preallocate+0x124/0x2dc lib/maple_tree.c:5806 do_brk_flags+0x6c4/0xa60 mm/mmap.c:2994 __do_sys_brk mm/mmap.c:262 [inline] __se_sys_brk mm/mmap.c:170 [inline] __arm64_sys_brk+0x778/0x884 mm/mmap.c:170 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 20187338 hardirqs last enabled at (20187337): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (20187337): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (20187338): [] __schedule+0x2a4/0x1c98 kernel/sched/core.c:6453 softirqs last enabled at (20187336): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (20187336): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (20187327): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]---