BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 8092 Comm: syz.1.297 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 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 __timer_delete_sync+0x78/0x1d4 kernel/time/timer.c:1602 timer_delete_sync+0x24/0x34 kernel/time/timer.c:1675 loopback_jiffies_timer_stop_sync+0x20/0x34 sound/drivers/aloop.c:296 loopback_prepare+0xcc/0xc24 sound/drivers/aloop.c:487 snd_pcm_do_prepare+0x180/0x224 sound/core/pcm_native.c:1960 snd_pcm_action_single sound/core/pcm_native.c:1305 [inline] snd_pcm_action_nonatomic+0x240/0x31c sound/core/pcm_native.c:1420 snd_pcm_prepare+0x1a4/0x214 sound/core/pcm_native.c:2008 snd_pcm_kernel_ioctl+0x160/0x270 sound/core/pcm_native.c:3498 snd_pcm_oss_prepare sound/core/oss/pcm_oss.c:1142 [inline] snd_pcm_oss_make_ready+0x168/0x2cc sound/core/oss/pcm_oss.c:1170 snd_pcm_oss_sync+0x150/0xa0c sound/core/oss/pcm_oss.c:1729 snd_pcm_oss_release+0xf8/0x230 sound/core/oss/pcm_oss.c:2574 __fput+0x340/0x75c fs/file_table.c:468 ____fput+0x20/0x58 fs/file_table.c:496 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xfc/0x168 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:103 [inline] el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596