------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 8957 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:183 [inline] WARNING: CPU: 0 PID: 8957 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:172 [inline] WARNING: CPU: 0 PID: 8957 at kernel/locking/lockdep.c:183 check_wait_context kernel/locking/lockdep.c:4054 [inline] WARNING: CPU: 0 PID: 8957 at kernel/locking/lockdep.c:183 __lock_acquire+0x1a51/0x4c50 kernel/locking/lockdep.c:4305 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8957 Comm: syz-executor619 Not tainted 5.7.0-rc1-next-20200415-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:hlock_class kernel/locking/lockdep.c:183 [inline] RIP: 0010:hlock_class kernel/locking/lockdep.c:172 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4054 [inline] RIP: 0010:__lock_acquire+0x1a51/0x4c50 kernel/locking/lockdep.c:4305 Code: 10 80 8b 8a e8 90 1c 58 00 8b 0d 4a 47 32 09 85 c9 0f 85 7e ed ff ff 48 c7 c6 60 9b 2b 88 48 c7 c7 e0 9a 2b 88 e8 87 30 eb ff <0f> 0b 31 d2 e9 6f ec ff ff 8b 94 24 58 01 00 00 85 d2 0f 84 6f 03 RSP: 0018:ffffc90005547610 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000 RDX: 0000000040000000 RSI: ffffffff815ce211 RDI: fffff52000aa8eb4 RBP: 00000000000008fd R08: ffff8880a4230180 R09: fffffbfff13367a1 R10: ffffffff899b3d03 R11: fffffbfff13367a0 R12: ffff8880a4230180 R13: 000000000000002b R14: 0000000000000001 R15: dffffc0000000000 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934 finish_lock_switch kernel/sched/core.c:3110 [inline] finish_task_switch+0x13f/0x750 kernel/sched/core.c:3211 context_switch kernel/sched/core.c:3375 [inline] __schedule+0x93f/0x1ff0 kernel/sched/core.c:4088 preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:4346 retint_kernel+0x1b/0x2b RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:759 [inline] RIP: 0010:lock_acquire+0x267/0x8f0 kernel/locking/lockdep.c:4937 Code: 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 c6 05 00 00 48 83 3d 35 42 3b 08 00 0f 84 65 04 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 03 44 24 08 48 c7 RSP: 0018:ffffc90005547a70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff132989c RBX: ffff8880a4230180 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: ffffffff8c37b408 RDI: 0000000000000286 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8c48c67f R11: fffffbfff18918cf R12: 0000000000000000 R13: ffff88809063c138 R14: 0000000000000000 R15: 0000000000000000 flush_workqueue+0x11f/0x14f0 kernel/workqueue.c:2779 hci_dev_open+0xdb/0x280 net/bluetooth/hci_core.c:1658 hci_sock_bind+0x427/0x1140 net/bluetooth/hci_sock.c:1200 __sys_bind+0x20e/0x250 net/socket.c:1662 __do_sys_bind net/socket.c:1673 [inline] __se_sys_bind net/socket.c:1671 [inline] __x64_sys_bind+0x6f/0xb0 net/socket.c:1671 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x4444e9 Code: e8 4c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 db 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd4a7b1738 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004444e9 RDX: 0000000000000006 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 0000000000000004 R08: 00000000bb1414ac R09: 00000000bb1414ac R10: 00000000bb1414ac R11: 0000000000000246 R12: 00000000019fb850 R13: 000000000000000b R14: 0000000000000000 R15: 0000000000000000 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..