BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 8087 Comm: syz.7.969 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call trace:
 dump_backtrace+0x1c0/0x1ec 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+0xf4/0x15c 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+0x1864/0x6800 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 __kernfs_new_node+0x110/0x5f4 fs/kernfs/dir.c:619
 kernfs_new_node+0x11c/0x22c fs/kernfs/dir.c:690
 kernfs_create_dir_ns+0x58/0x12c fs/kernfs/dir.c:1046
 sysfs_create_dir_ns+0x120/0x264 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:63 [inline]
 kobject_add_internal+0x598/0xb08 lib/kobject.c:231
 kobject_add_varg lib/kobject.c:366 [inline]
 kobject_add+0x140/0x20c lib/kobject.c:418
 device_add+0x3f0/0xf90 drivers/base/core.c:3632
 wakeup_source_device_create drivers/base/power/wakeup_stats.c:161 [inline]
 wakeup_source_sysfs_add+0x1a0/0x290 drivers/base/power/wakeup_stats.c:181
 wakeup_source_register+0x148/0x21c drivers/base/power/wakeup.c:223
 ep_create_wakeup_source+0xec/0x230 fs/eventpoll.c:1332
 ep_insert+0xbc8/0x13a0 fs/eventpoll.c:1461
 do_epoll_ctl+0x6b8/0xbf8 fs/eventpoll.c:2156
 __do_sys_epoll_ctl fs/eventpoll.c:2207 [inline]
 __se_sys_epoll_ctl fs/eventpoll.c:2198 [inline]
 __arm64_sys_epoll_ctl+0x200/0x294 fs/eventpoll.c:2198
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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