BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 6097 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 local_lock_acquire+0x44/0x14c include/linux/local_lock_internal.h:29
 refill_obj_stock+0x90/0x364 mm/memcontrol.c:3327
 obj_cgroup_uncharge+0x14/0x20 mm/memcontrol.c:3399
 memcg_slab_free_hook+0x110/0x1fc mm/slab.h:569
 slab_free mm/slub.c:3682 [inline]
 kmem_cache_free+0x108/0x324 mm/slub.c:3709
 free_buffer_head+0x58/0x118 fs/buffer.c:2915
 try_to_free_buffers+0x1dc/0x280 fs/buffer.c:2856
 filemap_release_folio+0x1ec/0x248 mm/filemap.c:4044
 block_invalidate_folio+0x474/0x588 fs/buffer.c:1526
 folio_invalidate mm/truncate.c:158 [inline]
 truncate_cleanup_folio+0x1b4/0x330 mm/truncate.c:178
 truncate_inode_pages_range+0x1f8/0xd20 mm/truncate.c:368
 truncate_inode_pages mm/truncate.c:451 [inline]
 truncate_inode_pages_final+0x8c/0xbc mm/truncate.c:486
 hfs_evict_inode+0x2c/0xf0 fs/hfs/inode.c:566
 evict+0x3c8/0x810 fs/inode.c:705
 dispose_list fs/inode.c:738 [inline]
 evict_inodes+0x64c/0x6e4 fs/inode.c:792
 generic_shutdown_super+0x9c/0x324 fs/super.c:480
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1182
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1189
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585