watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:4212]
Modules linked in:
irq event stamp: 6294
hardirqs last  enabled at (6293): [<ffffffff87400976>] restore_regs_and_return_to_kernel+0x0/0x2a
hardirqs last disabled at (6294): [<ffffffff874018ae>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793
softirqs last  enabled at (1640): [<ffffffff8760068b>] __do_softirq+0x68b/0x9ff kernel/softirq.c:314
softirqs last disabled at (1595): [<ffffffff81321cf3>] invoke_softirq kernel/softirq.c:368 [inline]
softirqs last disabled at (1595): [<ffffffff81321cf3>] irq_exit+0x193/0x240 kernel/softirq.c:409
CPU: 0 PID: 4212 Comm: syz-executor.3 Not tainted 4.14.288-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
task: ffff888096908300 task.stack: ffff88807bdb0000
RIP: 0010:rep_nop arch/x86/include/asm/processor.h:646 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:651 [inline]
RIP: 0010:queued_write_lock_slowpath+0xc9/0x1d0 kernel/locking/qrwlock.c:145
RSP: 0018:ffff88807bdb7d38 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000101 RBX: ffffffff89dd83e8 RCX: 00000000000073aa
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff89dd83e8
RBP: ffffffff89dd83ec R08: ffffffff8b9da850 R09: 000000000004058f
R10: ffff888096908bb0 R11: ffff888096908300 R12: 0000000000000003
R13: fffffbfff13bb07d R14: 00000000000000ff R15: ffffffff8863e080
FS:  00007f27beeac700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f27c064a028 CR3: 0000000096745000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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:2034
 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: 0033:0x7f27c05371f9
RSP: 002b:00007f27beeac108 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f27c0649f60 RCX: 00007f27c05371f9
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001f
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7100fa1f R14: 00007f27beeac300 R15: 0000000000022000
Code: 84 c0 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 
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8723e38e