BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 28661 Comm: syz.3.10659 Not tainted 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_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 __debug_object_init+0x6c/0x408 lib/debugobjects.c:621
 debug_object_init+0x20/0x2c lib/debugobjects.c:659
 __init_work+0x58/0x68 kernel/workqueue.c:523
 call_usermodehelper_setup+0xbc/0x250 kernel/umh.c:370
 call_usermodehelper_keys security/keys/request_key.c:104 [inline]
 call_sbin_request_key+0x6a0/0xa48 security/keys/request_key.c:196
 construct_key security/keys/request_key.c:247 [inline]
 construct_key_and_link security/keys/request_key.c:519 [inline]
 request_key_and_link+0xf40/0x1148 security/keys/request_key.c:653
 request_key_tag+0x68/0xcc security/keys/request_key.c:717
 dns_query+0x258/0x608 net/dns_resolver/dns_query.c:128
 ceph_dns_resolve_name net/ceph/messenger.c:1199 [inline]
 ceph_parse_server_name net/ceph/messenger.c:1234 [inline]
 ceph_parse_ips+0x538/0x9a4 net/ceph/messenger.c:1261
 ceph_parse_mon_ips+0x68/0xc4 net/ceph/ceph_common.c:407
 ceph_parse_old_source fs/ceph/super.c:262 [inline]
 ceph_parse_source+0x760/0xb54 fs/ceph/super.c:379
 ceph_parse_mount_param+0xd48/0x1064 fs/ceph/super.c:448
 vfs_parse_fs_param+0x1b8/0x3f8 fs/fs_context.c:146
 vfs_fsconfig_locked+0x20c/0x374 fs/fsopen.c:265
 __do_sys_fsconfig fs/fsopen.c:439 [inline]
 __se_sys_fsconfig fs/fsopen.c:314 [inline]
 __arm64_sys_fsconfig+0x634/0x77c fs/fsopen.c:314
 __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
libceph: resolve '.
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' (ret=-3): failed