BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 9525 Comm: syz.1.858 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
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+0xfdc/0x2ebc kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x364 kernel/locking/lockdep.c:5868
 bio_queue_enter block/blk.h:89 [inline]
 blk_mq_submit_bio+0x768/0x2544 block/blk-mq.c:3158
 __submit_bio+0x1a0/0x480 block/blk-core.c:635
 __submit_bio_noacct_mq block/blk-core.c:722 [inline]
 submit_bio_noacct_nocheck+0x288/0xaac block/blk-core.c:753
 submit_bio_noacct+0xd7c/0x17f0 block/blk-core.c:884
 submit_bio+0x38c/0x528 block/blk-core.c:926
 blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline]
 submit_bh_wbc+0x4c8/0x5ac fs/buffer.c:2737
 submit_bh+0x30/0x40 fs/buffer.c:2742
 __ext4_read_bh fs/ext4/super.c:181 [inline]
 ext4_read_bh+0x1a0/0x2ac fs/ext4/super.c:206
 ext4_read_bh_lock+0xe8/0x118 fs/ext4/super.c:221
 ext4_bread+0x108/0x1a8 fs/ext4/inode.c:1061
 ext4_quota_read+0x168/0x290 fs/ext4/super.c:7352
 read_blk+0x110/0x1c0 fs/quota/quota_tree.c:61
 find_tree_dqentry+0x94/0x84c fs/quota/quota_tree.c:671
 find_tree_dqentry+0x348/0x84c fs/quota/quota_tree.c:698
 find_tree_dqentry+0x348/0x84c fs/quota/quota_tree.c:698
 find_tree_dqentry+0x348/0x84c fs/quota/quota_tree.c:698
 find_dqentry fs/quota/quota_tree.c:716 [inline]
 qtree_read_dquot+0x45c/0x748 fs/quota/quota_tree.c:736
 v2_read_dquot+0xe4/0x198 fs/quota/quota_v2.c:344
 dquot_acquire+0x120/0x570 fs/quota/dquot.c:489
 ext4_acquire_dquot+0x274/0x420 fs/ext4/super.c:7030
 dqget+0x658/0xa90 fs/quota/dquot.c:1002
 __dquot_initialize+0x3ac/0xa5c fs/quota/dquot.c:1530
 dquot_initialize+0x24/0x34 fs/quota/dquot.c:1592
 ext4_process_orphan+0x5c/0x2c0 fs/ext4/orphan.c:327
 ext4_orphan_cleanup+0x7d4/0xd20 fs/ext4/orphan.c:472
 __ext4_fill_super fs/ext4/super.c:5701 [inline]
 ext4_fill_super+0x4628/0x4e14 fs/ext4/super.c:5824
 get_tree_bdev_flags+0x388/0x43c fs/super.c:1694
 get_tree_bdev+0x2c/0x3c fs/super.c:1717
 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5856
 vfs_get_tree+0x90/0x28c fs/super.c:1754
 fc_mount+0x24/0xac fs/namespace.c:1193
 do_new_mount_fc fs/namespace.c:3758 [inline]
 do_new_mount+0x2a4/0x538 fs/namespace.c:3834
 path_mount+0x5f0/0xa88 fs/namespace.c:4154
 do_mount+0xe8/0x148 fs/namespace.c:4167
 __do_sys_mount fs/namespace.c:4383 [inline]
 __se_sys_mount fs/namespace.c:4360 [inline]
 __arm64_sys_mount+0x334/0x380 fs/namespace.c:4360
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Quota error (device loop1): do_check_range: Getting block 196613 out of range 1-5
Quota error (device loop1): qtree_read_dquot: Can't read quota structure for id 0
EXT4-fs error (device loop1): ext4_acquire_dquot:7034: comm syz.1.858: Failed to acquire dquot type 1
loop1: lost filesystem error report for type 5 error -117
EXT4-fs (loop1): 1 truncate cleaned up
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0008-000000000000 r/w without journal. Quota mode: writeback.
Quota error (device loop1): do_check_range: Getting block 196613 out of range 1-5
Quota error (device loop1): qtree_read_dquot: Can't read quota structure for id 0
EXT4-fs error (device loop1): ext4_acquire_dquot:7034: comm syz.1.858: Failed to acquire dquot type 1