============================================
WARNING: possible recursive locking detected
5.16.0-rc3-syzkaller #0 Not tainted
--------------------------------------------
syz-executor.4/11631 is trying to acquire lock:
ffff8880732f1130 (&runtime->sleep){....}-{2:2}, at: io_poll_double_wake+0x2be/0x820 fs/io_uring.c:5463
but task is already holding lock:
ffff88807e528130 (&runtime->sleep){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&runtime->sleep);
lock(&runtime->sleep);
*** DEADLOCK ***
May be due to missing lock nesting notation
3 locks held by syz-executor.4/11631:
#0: ffff88807e528440 (&runtime->oss.params_lock){+.+.}-{3:3}, at: snd_pcm_oss_read1 sound/core/oss/pcm_oss.c:1497 [inline]
#0: ffff88807e528440 (&runtime->oss.params_lock){+.+.}-{3:3}, at: snd_pcm_oss_read+0x386/0x7b0 sound/core/oss/pcm_oss.c:2769
#1: ffff88814a32b110 (&group->lock){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:374 [inline]
#1: ffff88814a32b110 (&group->lock){....}-{2:2}, at: snd_pcm_group_lock_irq sound/core/pcm_native.c:97 [inline]
#1: ffff88814a32b110 (&group->lock){....}-{2:2}, at: snd_pcm_stream_lock_irq sound/core/pcm_native.c:136 [inline]
#1: ffff88814a32b110 (&group->lock){....}-{2:2}, at: snd_pcm_drop+0x131/0x320 sound/core/pcm_native.c:2150
#2: ffff88807e528130 (&runtime->sleep){....}-{2:2}, at: __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:137
stack backtrace:
CPU: 1 PID: 11631 Comm: syz-executor.4 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_deadlock_bug kernel/locking/lockdep.c:2956 [inline]
check_deadlock kernel/locking/lockdep.c:2999 [inline]
validate_chain kernel/locking/lockdep.c:3788 [inline]
__lock_acquire.cold+0x149/0x3ab kernel/locking/lockdep.c:5027
lock_acquire kernel/locking/lockdep.c:5637 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
io_poll_double_wake+0x2be/0x820 fs/io_uring.c:5463
__wake_up_common+0x147/0x650 kernel/sched/wait.c:108
__wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:138
snd_pcm_post_stop+0xb9/0x1f0 sound/core/pcm_native.c:1455
snd_pcm_action_single sound/core/pcm_native.c:1229 [inline]
snd_pcm_action+0x143/0x170 sound/core/pcm_native.c:1310
snd_pcm_stop sound/core/pcm_native.c:1476 [inline]
snd_pcm_drop+0x1ab/0x320 sound/core/pcm_native.c:2155
snd_pcm_kernel_ioctl+0x2af/0x310 sound/core/pcm_native.c:3382
snd_pcm_oss_change_params_locked+0x1926/0x3a60 sound/core/oss/pcm_oss.c:945
snd_pcm_oss_make_ready_locked+0xb3/0x130 sound/core/oss/pcm_oss.c:1173
snd_pcm_oss_read1 sound/core/oss/pcm_oss.c:1501 [inline]
snd_pcm_oss_read+0x3a8/0x7b0 sound/core/oss/pcm_oss.c:2769
vfs_read+0x1b5/0x600 fs/read_write.c:479
ksys_read+0x12d/0x250 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7045823ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7042d99188 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f7045936f60 RCX: 00007f7045823ae9
RDX: 0000000000000012 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f704587df6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff656451df R14: 00007f7042d99300 R15: 0000000000022000
</TASK>