ALSA: mixer_oss: invalid OSS volume 'LIN' INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 15928 Comm: syz-executor.1 Not tainted 4.19.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:727 [inline] register_lock_class+0xe76/0x11c0 kernel/locking/lockdep.c:753 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3303 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3907 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:152 skb_dequeue+0x1c/0x180 net/core/skbuff.c:2834 skb_queue_purge+0x21/0x30 net/core/skbuff.c:2872 l2cap_chan_del+0x690/0xa50 net/bluetooth/l2cap_core.c:637 l2cap_chan_close+0x1b5/0x950 net/bluetooth/l2cap_core.c:757 l2cap_sock_shutdown+0x339/0xe10 net/bluetooth/l2cap_sock.c:1159 l2cap_sock_release+0x77/0x290 net/bluetooth/l2cap_sock.c:1202 __sock_release+0xcd/0x2a0 net/socket.c:579 sock_close+0x15/0x20 net/socket.c:1140 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 get_signal+0x1b64/0x1f70 kernel/signal.c:2400 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465b09 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:00007f647d8f5188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: fffffffffffffffc RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffcd48c7f9f R14: 00007f647d8f5300 R15: 0000000000022000 ALSA: mixer_oss: invalid OSS volume 'LIN' XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid index -1474836480 XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' XFS (loop2): unknown mount option [logbsize=]. XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid OSS volume '' XFS (loop2): unknown mount option [logbsize=]. XFS (loop2): unknown mount option [logbsize=]. Bluetooth: hci5: command 0x0405 tx timeout ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid index 200000 ALSA: mixer_oss: invalid OSS volume '#rly A4BAS.fٞ' ALSA: mixer_oss: invalid OSS volume '$S' ALSA: mixer_oss: invalid OSS volume '#rly A4BAS.fٞ' ALSA: mixer_oss: invalid OSS volume '$S' ALSA: mixer_oss: invalid OSS volume '0177777777777777777777701777777' ALSA: mixer_oss: invalid OSS volume '0177777777777777777777701777777' ALSA: mixer_oss: invalid OSS volume '7OI*tHC@.֞T' ALSA: mixer_oss: invalid OSS volume '7OI*tHC@.֞T' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid index 20000 ALSA: mixer_oss: invalid OSS volume ',ªc' ALSA: mixer_oss: invalid OSS volume ',ªc' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid index 20000 ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid index 20000 ALSA: mixer_oss: invalid OSS volume '0177777777777777777777700000000' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '0177777777777777777777700000000' ALSA: mixer_oss: invalid index 20000 ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'BAS$ic' ALSA: mixer_oss: invalid OSS volume 'BAS$ic' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume 'L' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'L' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'L' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume 'BA]S' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'BA]S' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume 'B' XFS (loop2): unknown mount option [obj_type=**]. ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'B' ALSA: mixer_oss: invalid OSS volume '%}ш-H' XFS (loop2): unknown mount option [obj_type=**]. ALSA: mixer_oss: invalid OSS volume 'B' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume '' XFS (loop2): unknown mount option [obj_type=**]. ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume 'B' XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid OSS volume '' XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume 'B' jfs: Unrecognized mount option "noq " or missing value XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'B' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '%}ш-H' XFS (loop2): unknown mount option [logbsize=]. ALSA: mixer_oss: invalid OSS volume 'BA' ALSA: mixer_oss: invalid OSS volume 'U& xmr' ALSA: mixer_oss: invalid OSS volume '%}ш-H' ALSA: mixer_oss: invalid OSS volume 'BA' jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume 'BA' XFS (loop2): unknown mount option [logbsize=]. XFS (loop2): unknown mount option [logbsize=]. jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume '#!' ALSA: mixer_oss: invalid OSS volume '9A(lpɶ[$Bmb' ALSA: mixer_oss: invalid OSS volume '#!' ALSA: mixer_oss: invalid OSS volume 'BAS' ALSA: mixer_oss: invalid OSS volume '9A(lpɶ[$Bmb' ALSA: mixer_oss: invalid OSS volume 'BAS' jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume 'BAS' jfs: Unrecognized mount option "noq " or missing value JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value JFS: discard option not supported on device ALSA: mixer_oss: invalid OSS volume 'L' jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume 'L' ALSA: mixer_oss: invalid OSS volume '+UT̽,hHnPcn.d' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '+UT̽,hHnPcn.d' ALSA: mixer_oss: invalid OSS volume 'bASS' ALSA: mixer_oss: invalid OSS volume 'bASS' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'LINE3.'`ine'"2(8Mtγɹ' ALSA: mixer_oss: invalid OSS volume 'LINE3.'`ine'"2(8Mtγɹ' JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume 'BAO3:SS' JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume 'BAO3:SS' JFS: discard option not supported on device JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value jfs: Unrecognized mount option "noq " or missing value JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value JFS: discard option not supported on device ALSA: mixer_oss: invalid OSS volume '0x0000000000000004' jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume '0x0000000000000004' ALSA: mixer_oss: invalid OSS volume '' JFS: discard option not supported on device jfs: Unrecognized mount option "noq " or missing value ALSA: mixer_oss: invalid OSS volume ''