netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. ================================ WARNING: inconsistent lock state 5.10.60 #1 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. jbd2/sda-8/78 [HC0[0]:SC1[1]:HE1:SE0] takes: ffff88804a0fb0a0 (slock-AF_BLUETOOTH-BTPROTO_SCO){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] ffff88804a0fb0a0 (slock-AF_BLUETOOTH-BTPROTO_SCO){+.?.}-{2:2}, at: sco_sock_timeout+0x24/0x150 net/bluetooth/sco.c:83 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5560 [inline] lock_acquire+0x197/0x490 kernel/locking/lockdep.c:5525 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x27/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] sco_conn_del+0x128/0x270 net/bluetooth/sco.c:176 sco_disconn_cfm net/bluetooth/sco.c:1189 [inline] sco_disconn_cfm+0x62/0x80 net/bluetooth/sco.c:1182 hci_disconn_cfm include/net/bluetooth/hci_core.h:1443 [inline] hci_conn_hash_flush+0x119/0x230 net/bluetooth/hci_conn.c:1557 hci_dev_do_close+0x717/0x1240 net/bluetooth/hci_core.c:1777 hci_unregister_dev+0x149/0x430 net/bluetooth/hci_core.c:3835 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:340 __fput+0x285/0x970 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:151 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0xc0f/0x2770 kernel/exit.c:811 do_group_exit+0x125/0x310 kernel/exit.c:908 get_signal+0x469/0x2210 kernel/signal.c:2758 arch_do_signal+0x88/0x1b00 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xf7/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 irq event stamp: 504848 hardirqs last enabled at (504848): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (504848): [] _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199 hardirqs last disabled at (504847): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (504847): [] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167 softirqs last enabled at (504366): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (504845): [] asm_call_irq_on_stack+0x12/0x20 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(slock-AF_BLUETOOTH-BTPROTO_SCO); lock(slock-AF_BLUETOOTH-BTPROTO_SCO); *** DEADLOCK *** 1 lock held by jbd2/sda-8/78: #0: ffff88806ce09d68 ((&sk->sk_timer)#2){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffff88806ce09d68 ((&sk->sk_timer)#2){+.-.}-{0:0}, at: call_timer_fn+0xd4/0x580 kernel/time/timer.c:1404 stack backtrace: CPU: 0 PID: 78 Comm: jbd2/sda-8 Not tainted 5.10.60 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 print_usage_bug kernel/locking/lockdep.c:3857 [inline] valid_state kernel/locking/lockdep.c:3869 [inline] mark_lock_irq kernel/locking/lockdep.c:4072 [inline] mark_lock.cold+0x19/0x159 kernel/locking/lockdep.c:4529 mark_usage kernel/locking/lockdep.c:4424 [inline] __lock_acquire+0x11f0/0x5b60 kernel/locking/lockdep.c:4904 lock_acquire kernel/locking/lockdep.c:5560 [inline] lock_acquire+0x197/0x490 kernel/locking/lockdep.c:5525 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x27/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] sco_sock_timeout+0x24/0x150 net/bluetooth/sco.c:83 call_timer_fn+0x182/0x580 kernel/time/timer.c:1414 expire_timers kernel/time/timer.c:1459 [inline] __run_timers.part.0+0x666/0x9d0 kernel/time/timer.c:1750 __run_timers kernel/time/timer.c:1731 [inline] run_timer_softirq+0x80/0x120 kernel/time/timer.c:1763 __do_softirq+0x1b6/0x86a kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:crc32_body+0xad/0x610 lib/crc32.c:110 Code: ff 49 8d 7f 04 48 89 fa 48 c1 ea 03 42 0f b6 0c 22 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 29 05 00 00 41 33 5f 04 <0f> b6 d3 49 8d ac 95 00 1c 00 00 48 89 ea 48 c1 ea 03 42 0f b6 0c RSP: 0018:ffff88800fa7fa08 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 000000001acbca79 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff81f046a4 RDI: ffff88802e9a5080 RBP: 0000000000000200 R08: 000000003d30b71a R09: 00000000c384aab8 R10: 0000000000000200 R11: 0000000000000003 R12: dffffc0000000000 R13: ffffffff843b6500 R14: 0000000000000010 R15: ffff88802e9a507c chksum_update+0x4c/0xb0 crypto/crc32c_generic.c:88 crypto_shash_update+0xca/0x120 crypto/shash.c:131 jbd2_chksum include/linux/jbd2.h:1741 [inline] jbd2_block_tag_csum_set fs/jbd2/commit.c:366 [inline] jbd2_journal_commit_transaction+0x1adf/0x6930 fs/jbd2/commit.c:729 kjournald2+0x1d1/0x930 fs/jbd2/journal.c:213 kthread+0x38f/0x470 kernel/kthread.c:292 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:296 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'.