loop7: detected capacity change from 0 to 512
EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 8246 Comm: syz.7.288 Not tainted 6.16.0-rc4-syzkaller-g3cd1604f930f #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:501 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3858 [inline]
 validate_chain kernel/locking/lockdep.c:3879 [inline]
 __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5240
 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871
 _raw_spin_lock_nested+0x50/0x6c kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:606 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1532 [inline]
 rq_lock kernel/sched/sched.h:1856 [inline]
 ttwu_queue kernel/sched/core.c:4012 [inline]
 try_to_wake_up+0x434/0xdf0 kernel/sched/core.c:4342
 wake_up_process+0x18/0x24 kernel/sched/core.c:4475
 kick_pool+0x3e0/0x58c kernel/workqueue.c:1279
 __queue_work+0xde4/0x1230 kernel/workqueue.c:2342
 queue_work_on+0xdc/0x18c kernel/workqueue.c:2392
 queue_work include/linux/workqueue.h:662 [inline]
 loop_queue_work drivers/block/loop.c:853 [inline]
 loop_queue_rq+0x944/0xaa8 drivers/block/loop.c:1857
 __blk_mq_issue_directly block/blk-mq.c:2693 [inline]
 blk_mq_request_issue_directly+0x2c0/0x560 block/blk-mq.c:2780
 blk_mq_issue_direct+0x254/0x558 block/blk-mq.c:2801
 blk_mq_dispatch_queue_requests+0x568/0x674 block/blk-mq.c:2876
 blk_mq_flush_plug_list+0x370/0x488 block/blk-mq.c:2959
 __blk_flush_plug+0x330/0x408 block/blk-core.c:1220
 blk_finish_plug block/blk-core.c:1247 [inline]
 __submit_bio+0x3f4/0x4d8 block/blk-core.c:649
 __submit_bio_noacct_mq block/blk-core.c:722 [inline]
 submit_bio_noacct_nocheck+0x390/0xaac block/blk-core.c:751
 submit_bio_noacct+0xc84/0x176c block/blk-core.c:874
 submit_bio+0x354/0x4d4 block/blk-core.c:916
 submit_bh_wbc+0x3ec/0x4bc fs/buffer.c:2831
 submit_bh+0x30/0x40 fs/buffer.c:2836
 __ext4_read_bh fs/ext4/super.c:180 [inline]
 ext4_read_bh+0x19c/0x2b8 fs/ext4/super.c:205
 ext4_read_bh_lock+0xe8/0x11c fs/ext4/super.c:220
 ext4_bread+0x108/0x1b0 fs/ext4/inode.c:1029
 ext4_quota_read+0x15c/0x34c fs/ext4/super.c:7251
 read_blk fs/quota/quota_tree.c:61 [inline]
 find_tree_dqentry+0x1a4/0xcc4 fs/quota/quota_tree.c:671
 find_tree_dqentry+0x524/0xcc4 fs/quota/quota_tree.c:698
 find_dqentry fs/quota/quota_tree.c:716 [inline]
 qtree_read_dquot+0x454/0x724 fs/quota/quota_tree.c:736
 v2_read_dquot+0xe4/0x198 fs/quota/quota_v2.c:344
 dquot_acquire+0x130/0x598 fs/quota/dquot.c:461
 ext4_acquire_dquot+0x270/0x428 fs/ext4/super.c:6929
 dqget+0x654/0xccc fs/quota/dquot.c:977
 __dquot_initialize+0x2d4/0xa80 fs/quota/dquot.c:1505
 dquot_initialize+0x24/0x34 fs/quota/dquot.c:1567
 ext4_mkdir+0x144/0xa28 fs/ext4/namei.c:2998
 vfs_mkdir+0x284/0x424 fs/namei.c:4375
 do_mkdirat+0x1f8/0x4c8 fs/namei.c:4408
 __do_sys_mkdirat fs/namei.c:4425 [inline]
 __se_sys_mkdirat fs/namei.c:4423 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4423
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
EXT4-fs error (device loop7): ext4_do_update_inode:5568: inode #2: comm syz.7.288: corrupted inode contents
EXT4-fs error (device loop7): ext4_dirty_inode:6459: inode #2: comm syz.7.288: mark_inode_dirty error
EXT4-fs error (device loop7): ext4_do_update_inode:5568: inode #2: comm syz.7.288: corrupted inode contents
EXT4-fs error (device loop7): __ext4_ext_dirty:206: inode #2: comm syz.7.288: mark_inode_dirty error