------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 1 PID: 30005 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:183 [inline] WARNING: CPU: 1 PID: 30005 at kernel/locking/lockdep.c:183 check_wait_context kernel/locking/lockdep.c:4125 [inline] WARNING: CPU: 1 PID: 30005 at kernel/locking/lockdep.c:183 __lock_acquire+0x75d/0x16e0 kernel/locking/lockdep.c:4376 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 30005 Comm: syz-executor.0 Not tainted 5.9.0-rc4-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+0xa3/0xcc lib/dump_stack.c:118 panic+0x135/0x31a kernel/panic.c:231 __warn.cold.13+0x20/0x25 kernel/panic.c:600 report_bug+0xc0/0xf0 lib/bug.c:198 handle_bug+0x35/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x13/0x60 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:hlock_class kernel/locking/lockdep.c:183 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4125 [inline] RIP: 0010:__lock_acquire+0x75d/0x16e0 kernel/locking/lockdep.c:4376 Code: 28 85 c0 0f 84 e7 fb ff ff 8b 05 56 1c 40 03 85 c0 0f 85 d9 fb ff ff 48 c7 c6 38 0f e9 83 48 c7 c7 ba 0b e4 83 e8 3e 39 f9 ff <0f> 0b 31 c0 8b 4c 24 28 e9 70 fb ff ff 8b 85 cc 08 00 00 85 c0 0f RSP: 0018:ffffc9000309fa38 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff88810f028de8 RCX: 0000000000000003 RDX: 0000000080000003 RSI: 0000000000000001 RDI: 0000000000000086 RBP: ffff88810f028500 R08: ffffffff85d28420 R09: 0000000000000016 R10: 0000000000007535 R11: ffffc9000309f862 R12: ffffffff859ec7a0 R13: 0000000000000001 R14: 0000000000000004 R15: 0000000000000001 lock_acquire+0xd7/0x3e0 kernel/locking/lockdep.c:5006 finish_lock_switch kernel/sched/core.c:3516 [inline] finish_task_switch+0x91/0x280 kernel/sched/core.c:3617 context_switch kernel/sched/core.c:3781 [inline] __schedule+0x40c/0x8a0 kernel/sched/core.c:4527 preempt_schedule_irq+0x42/0x90 kernel/sched/core.c:4785 irqentry_exit_cond_resched kernel/entry/common.c:366 [inline] irqentry_exit+0x5a/0x80 kernel/entry/common.c:386 asm_sysvec_reschedule_ipi+0x12/0x20 arch/x86/include/asm/idtentry.h:586 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:lock_acquire+0x10e/0x3e0 kernel/locking/lockdep.c:5009 Code: 08 00 00 83 e8 01 66 85 c0 41 89 82 e4 08 00 00 0f 85 48 02 00 00 48 83 3d e6 3d 09 03 00 0f 84 4c 02 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 8b 44 24 38 65 48 33 04 25 28 00 00 00 0f 85 b3 RSP: 0018:ffffc9000309fcd0 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff85a4c8e8 RDI: 0000000000000286 RBP: 0000000000000000 R08: ffffffff85a4c8e8 R09: ffffffff85a4c8e8 R10: ffff88810f028500 R11: 9d3571d3fc4084fa R12: 0000000000000000 R13: 0000000000000000 R14: ffff88810def1938 R15: 0000000000000000 flush_workqueue+0xa6/0x590 kernel/workqueue.c:2780 hci_dev_open+0x3a/0xa0 net/bluetooth/hci_core.c:1667 hci_sock_bind+0x38c/0x6b0 net/bluetooth/hci_sock.c:1199 __sys_bind+0xc7/0xe0 net/socket.c:1656 __do_sys_bind net/socket.c:1667 [inline] __se_sys_bind net/socket.c:1665 [inline] __x64_sys_bind+0x11/0x20 net/socket.c:1665 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45caa9 Code: 8d 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1bee5e6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00000000004d99c0 RCX: 000000000045caa9 RDX: 0000000000000006 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000002c R14: 00000000004c2f59 R15: 00007f1bee5e76d4 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..