Warning: Permanently added '10.128.0.102' (ED25519) to the list of known hosts. syzkaller login: [ 72.428830][ T4274] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 72.436734][ T4274] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 72.442132][ T4275] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 72.445653][ T4274] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 72.452351][ T4275] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 72.458902][ T4274] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 72.465416][ T4275] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 72.474053][ T4274] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 72.479341][ T4275] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 72.493288][ T4274] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 72.493461][ T4275] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 72.502207][ T4274] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 72.507794][ T4275] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 72.515767][ T4274] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 72.528777][ T4276] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 72.529453][ T4274] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 72.538633][ T4277] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 72.543151][ T4274] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 72.551430][ T4276] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 72.557965][ T4274] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 72.565541][ T4276] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 72.572170][ T4274] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 72.578362][ T4276] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 72.585535][ T4274] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 72.592898][ T4277] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 72.599386][ T4274] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 72.606539][ T4276] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 72.613899][ T4274] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 72.622019][ T4277] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 72.629568][ T4274] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 executing program executing program [ 177.884222][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 177.891369][ C0] (detected by 0, t=10502 jiffies, g=7381, q=34 ncpus=2) [ 177.898528][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294954918-4294944418), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 177.911933][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g7381 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 177.923071][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 177.933065][ C0] rcu: RCU grace-period kthread stack dump: [ 177.938985][ C0] task:rcu_preempt state:R running task stack:27840 pid:16 ppid:2 flags:0x00004000 [ 177.949812][ C0] Call Trace: [ 177.953128][ C0] [ 177.956090][ C0] __schedule+0x10e9/0x40d0 [ 177.960667][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 177.965917][ C0] ? _raw_spin_unlock+0x40/0x40 [ 177.970809][ C0] ? release_firmware_map_entry+0x18a/0x18a [ 177.976749][ C0] schedule+0xb9/0x180 [ 177.980850][ C0] schedule_timeout+0x15c/0x280 [ 177.985780][ C0] ? console_conditional_schedule+0x40/0x40 [ 177.991800][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 177.997729][ C0] ? update_process_times+0x1b0/0x1b0 [ 178.003147][ C0] ? prepare_to_swait_event+0x335/0x350 [ 178.008739][ C0] rcu_gp_fqs_loop+0x2f2/0x1310 [ 178.013631][ C0] ? dump_blkd_tasks+0x810/0x810 [ 178.018602][ C0] ? rcu_gp_init+0x14b0/0x14b0 [ 178.023414][ C0] ? rcu_gp_cleanup+0xb4c/0xca0 [ 178.028316][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 178.033562][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 178.038809][ C0] rcu_gp_kthread+0x95/0x380 [ 178.043433][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 178.048572][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 178.054506][ C0] ? __kthread_parkme+0x162/0x1c0 [ 178.059575][ C0] kthread+0x29d/0x330 [ 178.063681][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 178.068822][ C0] ? kthread_blkcg+0xd0/0xd0 [ 178.073450][ C0] ret_from_fork+0x1f/0x30 [ 178.077921][ C0] [ 178.080972][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 178.087342][ C0] Sending NMI from CPU 0 to CPUs 1: [ 178.092584][ C1] NMI backtrace for cpu 1 [ 178.092612][ C1] CPU: 1 PID: 4280 Comm: syz-executor387 Not tainted 6.1.138-syzkaller #0 [ 178.092629][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 178.092639][ C1] RIP: 0010:hrtimer_interrupt+0x6c3/0x8d0 [ 178.092662][ C1] Code: ff ff ff 48 8b 0c 24 80 e1 07 38 c1 0f 8c e1 fc ff ff 48 8b 3c 24 e8 0c 61 61 00 e9 d3 fc ff ff e8 82 ed 0f 00 48 8b 44 24 08 <42> 0f b6 04 30 84 c0 0f 85 5a 01 00 00 41 80 65 00 fb e9 c0 00 00 [ 178.092680][ C1] RSP: 0018:ffffc900001e0ea8 EFLAGS: 00000006 [ 178.092695][ C1] RAX: 1ffff110171e54b9 RBX: ffff8880b8f2a580 RCX: ffff888072d41dc0 [ 178.092708][ C1] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 178.092718][ C1] RBP: 0000002974831ff0 R08: dffffc0000000000 R09: fffffbfff1bfd046 [ 178.092731][ C1] R10: fffffbfff1bfd046 R11: 1ffffffff1bfd045 R12: 00000029749b6480 [ 178.092743][ C1] R13: ffff8880b8f2a5cc R14: dffffc0000000000 R15: 0000000000000000 [ 178.092755][ C1] FS: 0000555590e443c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 178.092770][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 178.092781][ C1] CR2: 00007fdd4dd7a9e0 CR3: 000000002fd80000 CR4: 00000000003506e0 [ 178.092796][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 178.092805][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 178.092815][ C1] Call Trace: [ 178.092823][ C1] [ 178.092841][ C1] __sysvec_apic_timer_interrupt+0x153/0x5a0 [ 178.092869][ C1] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 178.092896][ C1] [ 178.092900][ C1] [ 178.092905][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 178.092928][ C1] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 178.092953][ C1] Code: f5 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4e 1b 4a f7 48 89 df e8 a6 e0 4a f7 e8 11 e3 6d f7 fb bf 01 00 00 00 b6 5d 3e f7 65 8b 05 b7 22 e9 75 85 c0 74 02 5b c3 e8 04 34 e7 [ 178.092965][ C1] RSP: 0018:ffffc90003bf7bb8 EFLAGS: 00000286 [ 178.092978][ C1] RAX: 107814d9e7775000 RBX: ffff88802f229bc0 RCX: 107814d9e7775000 [ 178.092991][ C1] RDX: dffffc0000000000 RSI: ffffffff8a6bfe00 RDI: 0000000000000001 [ 178.093002][ C1] RBP: ffff88802f22a058 R08: dffffc0000000000 R09: ffffed1005e45379 [ 178.093014][ C1] R10: ffffed1005e45379 R11: 1ffff11005e45378 R12: 1ffff11005e4540b [ 178.093027][ C1] R13: 0000000000000021 R14: dffffc0000000000 R15: 0000000000000000 [ 178.093045][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 178.093067][ C1] get_signal+0x1163/0x1350 [ 178.093101][ C1] arch_do_signal_or_restart+0xb0/0x1230 [ 178.093124][ C1] ? __ia32_sys_rt_sigreturn+0x660/0x790 [ 178.093147][ C1] ? load_gs_index+0x120/0x120 [ 178.093167][ C1] ? get_sigframe_size+0x10/0x10 [ 178.093195][ C1] ? exit_to_user_mode_loop+0x3b/0x110 [ 178.093221][ C1] exit_to_user_mode_loop+0x70/0x110 [ 178.093244][ C1] exit_to_user_mode_prepare+0xb1/0x140 [ 178.093268][ C1] syscall_exit_to_user_mode+0x16/0x40 [ 178.093283][ C1] do_syscall_64+0x58/0xa0 [ 178.093303][ C1] ? clear_bhb_loop+0x45/0xa0 [ 178.093319][ C1] ? clear_bhb_loop+0x45/0xa0 [ 178.093335][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 178.093360][ C1] RIP: 0033:0x7fdd4dd61809 [ 178.093384][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 1d 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 178.093397][ C1] RSP: 002b:00007fff8b5c1408 EFLAGS: 00000246 [ 178.093409][ C1] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fdd4dd61809 [ 178.093419][ C1] RDX: 000020000006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 178.093429][ C1] RBP: 0000000000000000 R08: 00007fdd4dd19990 R09: 00007fdd4dd19990 [ 178.093440][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdd4ddb80dc [ 178.093450][ C1] R13: 00007fdd4ddb111f R14: 00007fff8b5c1440 R15: 0000000000000000 [ 178.093468][ C1]