------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 1 PID: 11476 at kernel/locking/lockdep.c:168 hlock_class kernel/locking/lockdep.c:168 [inline] WARNING: CPU: 1 PID: 11476 at kernel/locking/lockdep.c:168 hlock_class kernel/locking/lockdep.c:157 [inline] WARNING: CPU: 1 PID: 11476 at kernel/locking/lockdep.c:168 __lock_acquire+0x2154/0x5270 kernel/locking/lockdep.c:4186 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 11476 Comm: syz-executor.1 Not tainted 5.6.0-rc3-next-20200228-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:168 [inline] RIP: 0010:hlock_class kernel/locking/lockdep.c:157 [inline] RIP: 0010:__lock_acquire+0x2154/0x5270 kernel/locking/lockdep.c:4186 Code: 08 84 d2 0f 85 ee 21 00 00 8b 05 77 99 2d 09 85 c0 75 b4 48 c7 c6 c0 7d 2b 88 48 c7 c7 00 7e 2b 88 4c 89 14 24 e8 44 a5 eb ff <0f> 0b 31 db 4c 8b 14 24 e9 28 fa ff ff 44 8b 7c 24 60 4d 89 f2 48 RSP: 0018:ffffc90001c2f678 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000b4f RCX: 0000000000000000 RDX: 0000000040000000 RSI: ffffffff815c4e91 RDI: fffff52000385ec1 RBP: ffff8880920a4240 R08: ffff8880920a4240 R09: fffffbfff13345a5 R10: fffffbfff13345a4 R11: ffffffff899a2d23 R12: 00000000bdadaf5a R13: ffffffff8a865510 R14: ffff8880920a4b08 R15: 0000000000000000 lock_acquire+0x197/0x420 kernel/locking/lockdep.c:4720 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 perf_ctx_lock kernel/events/core.c:155 [inline] perf_event_context_sched_in kernel/events/core.c:3568 [inline] __perf_event_task_sched_in+0x50f/0x7c0 kernel/events/core.c:3626 perf_event_task_sched_in include/linux/perf_event.h:1191 [inline] finish_task_switch+0x2a8/0x750 kernel/sched/core.c:3215 context_switch kernel/sched/core.c:3381 [inline] __schedule+0x93c/0x1f90 kernel/sched/core.c:4078 preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:4335 retint_kernel+0x1b/0x2b RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline] RIP: 0010:lock_acquire+0x209/0x420 kernel/locking/lockdep.c:4723 Code: 9c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 de 01 00 00 48 83 3d 8b c4 3a 08 00 0f 84 5a 01 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b RSP: 0018:ffffc90001c2fb18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1327907 RBX: ffff8880920a4240 RCX: 1ffff92000385f4c RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff88808e49fd28 R08: 0000000000000004 R09: fffffbfff18b79b5 R10: fffffbfff18b79b4 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 flush_workqueue+0x126/0x14c0 kernel/workqueue.c:2777 hci_dev_open+0xdb/0x280 net/bluetooth/hci_core.c:1626 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+0xf6/0x790 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c849 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9baca13c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007f9baca146d4 RCX: 000000000045c849 RDX: 0000000000000006 RSI: 0000000020000080 RDI: 0000000000000006 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000002c R14: 00000000004c2ce6 R15: 000000000076bfac Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..