BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 10346 Comm: syz.2.900 Not tainted 6.1.148-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
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 __queue_work+0x670/0x123c kernel/workqueue.c:-1
 queue_work_on+0xc0/0x16c kernel/workqueue.c:1548
 queue_work include/linux/workqueue.h:512 [inline]
 loop_queue_work drivers/block/loop.c:893 [inline]
 loop_queue_rq+0x94c/0xa80 drivers/block/loop.c:1874
 __blk_mq_issue_directly block/blk-mq.c:2631 [inline]
 __blk_mq_try_issue_directly+0x410/0x67c block/blk-mq.c:2684
 blk_mq_try_issue_directly+0x3c/0x1d8 block/blk-mq.c:2708
 blk_mq_submit_bio+0xf88/0x1a48 block/blk-mq.c:3045
 __submit_bio+0x1d8/0x260 block/blk-core.c:591
 __submit_bio_noacct_mq block/blk-core.c:668 [inline]
 submit_bio_noacct_nocheck+0x67c/0x9ec block/blk-core.c:697
 submit_bio_noacct+0xcc0/0x16c4 block/blk-core.c:792
 submit_bio+0x29c/0x3d0 block/blk-core.c:837
 submit_bh_wbc+0x384/0x454 fs/buffer.c:2702
 submit_bh fs/buffer.c:2707 [inline]
 __sync_dirty_buffer+0x170/0x300 fs/buffer.c:2745
 sync_dirty_buffer+0x24/0x34 fs/buffer.c:2758
 __fat_write_inode+0x5c0/0x780 fs/fat/inode.c:903
 fat_sync_inode+0x24/0x34 fs/fat/inode.c:926
 vfat_sync_ipos fs/fat/namei_vfat.c:905 [inline]
 vfat_rename_exchange fs/fat/namei_vfat.c:1095 [inline]
 vfat_rename2+0x614/0x17d8 fs/fat/namei_vfat.c:1169
 vfs_rename+0x954/0xdcc fs/namei.c:4874
 do_renameat2+0x738/0xa54 fs/namei.c:5027
 __do_sys_renameat2 fs/namei.c:5060 [inline]
 __se_sys_renameat2 fs/namei.c:5057 [inline]
 __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5057
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 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:585