BUG: scheduling while atomic: syz.0.494/7189/0x00000002
locks held by syz.0.494/7189: 1, on CPU#0:
 #0: ffff88807cffb910 (&group->lock#2){..-.}-{3:3}, at: spin_lock_irq include/linux/spinlock.h:377 [inline]
 #0: ffff88807cffb910 (&group->lock#2){..-.}-{3:3}, at: snd_pcm_group_lock_irq sound/core/pcm_native.c:103 [inline]
 #0: ffff88807cffb910 (&group->lock#2){..-.}-{3:3}, at: snd_pcm_stream_lock_irq sound/core/pcm_native.c:142 [inline]
 #0: ffff88807cffb910 (&group->lock#2){..-.}-{3:3}, at: class_pcm_stream_lock_irq_constructor include/sound/pcm.h:678 [inline]
 #0: ffff88807cffb910 (&group->lock#2){..-.}-{3:3}, at: snd_pcm_drop+0xcc/0x780 sound/core/pcm_native.c:2323
Modules linked in:
irq event stamp: 490
hardirqs last  enabled at (489): [<ffffffff8bf73dc0>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline]
hardirqs last  enabled at (489): [<ffffffff8bf73dc0>] _raw_spin_unlock_irqrestore+0x30/0x80 kernel/locking/spinlock.c:221
hardirqs last disabled at (490): [<ffffffff8bf73b17>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:163 [inline]
hardirqs last disabled at (490): [<ffffffff8bf73b17>] _raw_spin_lock_irq+0x17/0x50 kernel/locking/spinlock.c:189
softirqs last  enabled at (0): [<ffffffff8186b8d7>] rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
softirqs last  enabled at (0): [<ffffffff8186b8d7>] rcu_read_lock include/linux/rcupdate.h:849 [inline]
softirqs last  enabled at (0): [<ffffffff8186b8d7>] copy_process+0xd17/0x44b0 kernel/fork.c:2185
softirqs last disabled at (0): [<0000000000000000>] 0x0
Preemption disabled at:
[<0000000000000000>] 0x0
Kernel panic - not syncing: scheduling while atomic: panic_on_warn set ...
CPU: 0 UID: 0 PID: 7189 Comm: syz.0.494 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 vpanic+0x26f/0x710 kernel/panic.c:661
 panic+0xc5/0xd0 kernel/panic.c:787
 check_panic_on_warn+0x89/0xb0 kernel/panic.c:533
 __schedule_bug+0xf1/0x150 kernel/sched/core.c:6143
 schedule_debug kernel/sched/core.c:6172 [inline]
 __schedule+0x18b7/0x5820 kernel/sched/core.c:7232
 __schedule_loop kernel/sched/core.c:7462 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7477
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 wait_clear_urbs+0x134/0x390 sound/usb/endpoint.c:1010
 sync_pending_stops sound/usb/pcm.c:317 [inline]
 snd_usb_pcm_sync_stop+0x9c/0xb0 sound/usb/pcm.c:325
 snd_pcm_sync_stop sound/core/pcm_native.c:648 [inline]
 snd_pcm_drop+0x57d/0x780 sound/core/pcm_native.c:2335
 snd_pcm_oss_set_trigger+0xa85/0xda0 sound/core/oss/pcm_oss.c:2116
 snd_pcm_oss_ioctl+0xbb3/0xdf0 sound/core/oss/pcm_oss.c:2724
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f59efd9e559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f59f0ba2028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f59f0026090 RCX: 00007f59efd9e559
RDX: 0000200000000140 RSI: 0000000040045010 RDI: 0000000000000006
RBP: 00007f59efe358b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f59f0026128 R14: 00007f59f0026090 R15: 00007ffec96a4268
 </TASK>
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..