loop7: detected capacity change from 0 to 512 EXT4-fs: Ignoring removed nobh option BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 8768 Comm: syz.7.332 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (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:3855 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5868 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154 __queue_work+0x8b4/0x1210 kernel/workqueue.c:-1 queue_work_on+0xdc/0x18c kernel/workqueue.c:2392 queue_work include/linux/workqueue.h:669 [inline] loop_queue_work drivers/block/loop.c:864 [inline] loop_queue_rq+0x944/0xaa8 drivers/block/loop.c:1891 __blk_mq_issue_directly block/blk-mq.c:2704 [inline] blk_mq_request_issue_directly+0x2c0/0x560 block/blk-mq.c:2791 blk_mq_issue_direct+0x254/0x558 block/blk-mq.c:2812 blk_mq_dispatch_queue_requests+0x568/0x674 block/blk-mq.c:2887 blk_mq_flush_plug_list+0x370/0x488 block/blk-mq.c:2970 __blk_flush_plug+0x330/0x408 block/blk-core.c:1225 blk_finish_plug block/blk-core.c:1252 [inline] __submit_bio+0x3f4/0x4d8 block/blk-core.c:651 __submit_bio_noacct_mq block/blk-core.c:724 [inline] submit_bio_noacct_nocheck+0x29c/0x9a4 block/blk-core.c:755 submit_bio_noacct+0xde0/0x186c block/blk-core.c:879 submit_bio+0x3b4/0x550 block/blk-core.c:921 submit_bh_wbc+0x3ec/0x4bc fs/buffer.c:2824 submit_bh+0x30/0x40 fs/buffer.c:2829 __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:1047 __ext4_read_dirblock+0xc0/0x630 fs/ext4/namei.c:144 dx_probe+0xb4/0xe64 fs/ext4/namei.c:791 ext4_dx_find_entry fs/ext4/namei.c:1722 [inline] __ext4_find_entry+0x420/0x1984 fs/ext4/namei.c:1561 ext4_lookup_entry fs/ext4/namei.c:1703 [inline] ext4_lookup+0x12c/0x5c4 fs/ext4/namei.c:1771 __lookup_slow+0x254/0x378 fs/namei.c:1816 lookup_slow fs/namei.c:1833 [inline] lookup_noperm_unlocked+0xcc/0x1e0 fs/namei.c:3157 lookup_noperm_positive_unlocked+0x28/0x8c fs/namei.c:3175 dquot_quota_on_mount+0xbc/0x180 fs/quota/dquot.c:2566 ext4_quota_on_mount fs/ext4/orphan.c:312 [inline] ext4_orphan_cleanup+0x668/0x107c fs/ext4/orphan.c:440 __ext4_fill_super fs/ext4/super.c:5617 [inline] ext4_fill_super+0x4854/0x4fcc fs/ext4/super.c:5736 get_tree_bdev_flags+0x360/0x414 fs/super.c:1691 get_tree_bdev+0x2c/0x3c fs/super.c:1714 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5768 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1208 [inline] do_new_mount_fc fs/namespace.c:3651 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3727 path_mount+0x5b4/0xdfc fs/namespace.c:4037 do_mount fs/namespace.c:4050 [inline] __do_sys_mount fs/namespace.c:4238 [inline] __se_sys_mount fs/namespace.c:4215 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4215 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 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+0x5c/0x254 arch/arm64/kernel/entry-common.c:746 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 EXT4-fs warning (device loop7): dx_probe:846: Directory (ino: 2) htree depth 0x0002 exceedsupported value EXT4-fs warning (device loop7): dx_probe:849: Enable large directory feature to access it EXT4-fs warning (device loop7): dx_probe:934: inode #2: comm syz.7.332: Corrupt directory, running e2fsck is recommended EXT4-fs (loop7): Cannot turn on journaled quota: type 1: error -117 EXT4-fs error (device loop7): ext4_iget_extra_inode:5075: inode #15: comm syz.7.332: corrupted in-inode xattr: invalid ea_ino EXT4-fs error (device loop7): ext4_orphan_get:1397: comm syz.7.332: couldn't read orphan inode 15 (err -117) EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.