watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:19222]
Modules linked in:
irq event stamp: 5618
hardirqs last  enabled at (5617): [<ffffffff87400976>] restore_regs_and_return_to_kernel+0x0/0x2a
hardirqs last disabled at (5618): [<ffffffff874018ae>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793
softirqs last  enabled at (850): [<ffffffff8760068b>] __do_softirq+0x68b/0x9ff kernel/softirq.c:314
softirqs last disabled at (817): [<ffffffff81320ae3>] invoke_softirq kernel/softirq.c:368 [inline]
softirqs last disabled at (817): [<ffffffff81320ae3>] irq_exit+0x193/0x240 kernel/softirq.c:409
CPU: 0 PID: 19222 Comm: syz-executor.5 Not tainted 4.14.228-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809b4ba380 task.stack: ffff888046428000
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:queued_write_lock_slowpath+0xcb/0x1d0 kernel/locking/qrwlock.c:139
RSP: 0018:ffff88804642fd38 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000101 RBX: ffffffff89dd42a8 RCX: 00000000000062aa
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff89dd42a8
RBP: ffffffff89dd42ac R08: ffffffff8b9bf010 R09: 00000000000405a1
R10: ffff88809b4bac30 R11: ffff88809b4ba380 R12: 0000000000000003
R13: fffffbfff13ba855 R14: 00000000000000ff R15: ffffffff88639f20
FS:  00007fa151c08700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa151c07d58 CR3: 00000000a272d000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000010602
Call Trace:
 queued_write_lock include/asm-generic/qrwlock.h:134 [inline]
 do_raw_write_lock+0xc2/0x1d0 kernel/locking/spinlock_debug.c:203
 bt_sock_link+0x1f/0x120 net/bluetooth/af_bluetooth.c:143
 hci_sock_create+0x15c/0x1d0 net/bluetooth/hci_sock.c:2017
 bt_sock_create+0x13b/0x280 net/bluetooth/af_bluetooth.c:130
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socket net/socket.c:1345 [inline]
 SyS_socket+0xd1/0x1b0 net/socket.c:1325
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x466459
RSP: 002b:00007fa151c08128 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001f
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffee2b7d84f R14: 00007fa151c08300 R15: 0000000000022000
Code: 75 dc 49 89 dd 49 89 dc 41 be ff 00 00 00 49 c1 ed 03 41 83 e4 07 48 b8 00 00 00 00 00 fc ff df 49 01 c5 41 83 c4 03 eb 02 f3 90 <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 9e 00 00 00 8b 03 83 
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff87223bce