watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:9875]
Modules linked in:
irq event stamp: 3289744
hardirqs last  enabled at (3289743): [<ffffffff874009d1>] restore_regs_and_return_to_kernel+0x0/0x2f
hardirqs last disabled at (3289744): [<ffffffff87401a1e>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:796
softirqs last  enabled at (11638): [<ffffffff8760068b>] __do_softirq+0x68b/0x9ff kernel/softirq.c:314
softirqs last disabled at (10547): [<ffffffff81322cf3>] invoke_softirq kernel/softirq.c:368 [inline]
softirqs last disabled at (10547): [<ffffffff81322cf3>] irq_exit+0x193/0x240 kernel/softirq.c:409
CPU: 0 PID: 9875 Comm: syz-executor.2 Not tainted 4.14.299-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
task: ffff88806b3920c0 task.stack: ffff88806b3f0000
RIP: 0010:__read_once_size include/linux/compiler.h:185 [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:ffff88806b3f7d38 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000101 RBX: ffffffff89dd9e28 RCX: 00000000000064cd
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff89dd9e28
RBP: ffffffff89dd9e2c R08: ffffffff8b9d2168 R09: 0000000000040591
R10: ffff88806b392970 R11: ffff88806b3920c0 R12: 0000000000000003
R13: fffffbfff13bb3c5 R14: 00000000000000ff R15: ffffffff88641240
FS:  00007fbabc220700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff64e47e988 CR3: 0000000093114000 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+0x5e/0xd3
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
CPU: 1 PID: 9876 Comm: syz-executor.1 Not tainted 4.14.299-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
task: ffff88806b314080 task.stack: ffff88806b3e8000
RIP: 0010:apic_timer_interrupt+0x0/0xa0
RSP: 0018:ffff88806b3ef958 EFLAGS: 00000006
RAX: 0000000000000003 RBX: ffff8880ba534f80 RCX: fffffbfff13bb3c5
RDX: 000000000000515b RSI: 0000000000000004 RDI: 0000000000000286
RBP: ffffffff89dd9e2c R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff89dd9e2d R15: ffffed10174a69f8
FS:  00007fd60a7da700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dd28000 CR3: 00000000ab00e000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Code: e7 e8 45 39 c0 f9 e8 34 02 c0 f9 e9 d4 ef ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 4c 87 c1 e9 a8 b0 f0 f9 c3 90 90 90 90 90 90 90 <0f> 01 ca 68 10 ff ff ff fc f6 44 24 10 03 74 10 0f 01 f8 0f 1f