loop6: detected capacity change from 0 to 256
exFAT-fs (loop6): failed to load upcase table (idx : 0x00010000, chksum : 0xdd33351c, utbl_chksum : 0xe619d30d)
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 8449 Comm: syz.6.510 Not tainted 6.1.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1b88/0x7680 kernel/locking/lockdep.c:5049
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 _raw_spin_lock_nested+0x5c/0x78 kernel/locking/spinlock.c:378
 raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline]
 raw_spin_rq_lock kernel/sched/sched.h:1355 [inline]
 rq_lock kernel/sched/sched.h:1645 [inline]
 ttwu_queue kernel/sched/core.c:3901 [inline]
 try_to_wake_up+0x4b4/0xdfc kernel/sched/core.c:4226
 wake_up_process+0x18/0x24 kernel/sched/core.c:4360
 wake_up_worker kernel/workqueue.c:859 [inline]
 insert_work+0x2ac/0x384 kernel/workqueue.c:1369
 __queue_work+0xd48/0x136c kernel/workqueue.c:1520
 queue_work_on+0xc0/0x16c kernel/workqueue.c:1548
 queue_work include/linux/workqueue.h:512 [inline]
 loop_queue_work drivers/block/loop.c:892 [inline]
 loop_queue_rq+0x978/0xae0 drivers/block/loop.c:1873
 __blk_mq_issue_directly block/blk-mq.c:2631 [inline]
 __blk_mq_try_issue_directly+0x430/0x6c0 block/blk-mq.c:2684
 blk_mq_try_issue_directly+0x3c/0x1d8 block/blk-mq.c:2708
 blk_mq_submit_bio+0x1088/0x1d08 block/blk-mq.c:3045
 __submit_bio+0x214/0x2a0 block/blk-core.c:591
 __submit_bio_noacct_mq block/blk-core.c:668 [inline]
 submit_bio_noacct_nocheck+0x794/0xbf8 block/blk-core.c:697
 submit_bio_noacct+0xce8/0x1728 block/blk-core.c:792
 submit_bio+0x2c0/0x45c block/blk-core.c:837
 submit_bh_wbc+0x398/0x468 fs/buffer.c:2702
 submit_bh fs/buffer.c:2707 [inline]
 __bh_read fs/buffer.c:2972 [inline]
 bh_readahead include/linux/buffer_head.h:418 [inline]
 __breadahead+0x14c/0x2c4 fs/buffer.c:1345
 sb_breadahead include/linux/buffer_head.h:350 [inline]
 exfat_dir_readahead fs/exfat/dir.c:711 [inline]
 exfat_get_dentry+0x458/0x750 fs/exfat/dir.c:734
 exfat_count_dir_entries+0x16c/0x648 fs/exfat/dir.c:1185
 exfat_find fs/exfat/namei.c:695 [inline]
 exfat_lookup+0xb00/0x1428 fs/exfat/namei.c:721
 __lookup_slow+0x250/0x374 fs/namei.c:1690
 lookup_slow+0x60/0x84 fs/namei.c:1707
 walk_component+0x280/0x36c fs/namei.c:1998
 lookup_last fs/namei.c:2455 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2479
 filename_lookup+0x1d4/0x4e0 fs/namei.c:2508
 user_path_at_empty+0x5c/0x84 fs/namei.c:2905
 user_path_at include/linux/namei.h:57 [inline]
 inotify_find_inode fs/notify/inotify/inotify_user.c:378 [inline]
 __do_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:777 [inline]
 __se_sys_inotify_add_watch fs/notify/inotify/inotify_user.c:730 [inline]
 __arm64_sys_inotify_add_watch+0x1b4/0xc40 fs/notify/inotify/inotify_user.c:730
 __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+0x58/0x168 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:585