Warning: Permanently added '10.128.0.182' (ED25519) to the list of known hosts. [ 60.870705][ T4275] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 60.874373][ T4276] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.878547][ T4275] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 60.885777][ T4276] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 60.892571][ T4275] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 60.900021][ T4276] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 60.906628][ T4275] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.913194][ T4276] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 60.920556][ T4275] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 60.927485][ T4276] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 60.933993][ T4275] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 60.940738][ T4276] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.947989][ T4275] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 60.961680][ T4276] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 60.961789][ T4275] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 60.969775][ T4276] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.977416][ T4275] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 60.983087][ T4276] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.989871][ T4275] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 60.996412][ T4276] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 61.003918][ T4275] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 61.010448][ T4276] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 61.017825][ T4275] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 61.031082][ T4277] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 61.039609][ T4277] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 61.061239][ T4275] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 61.061301][ T4277] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 61.075582][ T4277] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 61.082907][ T4277] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 61.109617][ T4277] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 executing program executing program [ 166.250873][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 166.257952][ C0] (detected by 0, t=10502 jiffies, g=5977, q=54 ncpus=2) [ 166.265078][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10501 (4294953779-4294943278), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 166.278447][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g5977 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.289560][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 166.299532][ C0] rcu: RCU grace-period kthread stack dump: [ 166.305437][ C0] task:rcu_preempt state:R running task stack:27256 pid:16 ppid:2 flags:0x00004000 [ 166.316262][ C0] Call Trace: [ 166.319549][ C0] [ 166.322494][ C0] __schedule+0x143f/0x4570 [ 166.327046][ C0] ? _raw_spin_unlock+0x40/0x40 [ 166.331929][ C0] ? __mod_timer+0x956/0xee0 [ 166.336537][ C0] ? release_firmware_map_entry+0x18b/0x18b [ 166.342445][ C0] ? lockdep_softirqs_off+0x420/0x420 [ 166.347836][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 166.353752][ C0] ? _raw_spin_unlock+0x40/0x40 [ 166.358623][ C0] schedule+0xbf/0x180 [ 166.362718][ C0] schedule_timeout+0x1b9/0x300 [ 166.367590][ C0] ? console_conditional_schedule+0x40/0x40 [ 166.373500][ C0] ? update_process_times+0x1b0/0x1b0 [ 166.378888][ C0] ? prepare_to_swait_event+0x329/0x350 [ 166.384458][ C0] rcu_gp_fqs_loop+0x2d2/0x1150 [ 166.389335][ C0] ? dump_blkd_tasks+0x810/0x810 [ 166.394298][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 166.399512][ C0] ? rcu_gp_init+0x15f0/0x15f0 [ 166.404285][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 166.410198][ C0] ? finish_swait+0xcf/0x1e0 [ 166.414816][ C0] rcu_gp_kthread+0xa3/0x3b0 [ 166.419429][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 166.424558][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 166.430484][ C0] ? __kthread_parkme+0x168/0x1c0 [ 166.435536][ C0] kthread+0x28d/0x320 [ 166.439616][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 166.444753][ C0] ? kthread_blkcg+0xd0/0xd0 [ 166.449362][ C0] ret_from_fork+0x1f/0x30 [ 166.453814][ C0] [ 166.456847][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 166.463204][ C0] CPU: 0 PID: 4279 Comm: syz-executor217 Not tainted 6.1.131-syzkaller #0 [ 166.471722][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 166.481795][ C0] RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 [ 166.488394][ C0] Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f 1f 84 00 00 00 00 00 [ 166.508019][ C0] RSP: 0018:ffffc90003d07c30 EFLAGS: 00050202 [ 166.514115][ C0] RAX: ffffffff8443d701 RBX: 00007fffffffef40 RCX: 0000000000000060 [ 166.522092][ C0] RDX: 00000000000000c0 RSI: 00007ffea7162f88 RDI: ffffc90003d07d20 [ 166.530068][ C0] RBP: ffffc90003d07e50 R08: dffffc0000000000 R09: fffff520007a0fb0 [ 166.538070][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000000000c0 [ 166.546059][ C0] R13: ffffc90003d07f58 R14: ffffc90003d07cc0 R15: 00007ffea7162f28 [ 166.554039][ C0] FS: 0000555581d573c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 166.562975][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 166.569568][ C0] CR2: 0000200000000240 CR3: 000000007c889000 CR4: 00000000003506f0 [ 166.577554][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 166.585536][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 166.593510][ C0] Call Trace: [ 166.596793][ C0] [ 166.599648][ C0] ? rcu_check_gp_kthread_starvation+0x1b8/0x220 [ 166.606001][ C0] ? _find_next_bit+0x11b/0x120 [ 166.610871][ C0] ? print_other_cpu_stall+0x150c/0x1640 [ 166.616535][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 166.621498][ C0] ? rcu_sched_clock_irq+0xaf6/0x1200 [ 166.626903][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 166.631777][ C0] ? hrtimer_run_queues+0x163/0x450 [ 166.636995][ C0] ? acct_account_cputime+0x194/0x270 [ 166.642390][ C0] ? update_process_times+0x147/0x1b0 [ 166.647777][ C0] ? tick_sched_timer+0x386/0x550 [ 166.652818][ C0] ? tick_setup_sched_timer+0x2f0/0x2f0 [ 166.658372][ C0] ? __hrtimer_run_queues+0x5a7/0xe50 [ 166.663778][ C0] ? hrtimer_interrupt+0x980/0x980 [ 166.668916][ C0] ? ktime_get_update_offsets_now+0x407/0x420 [ 166.675040][ C0] ? hrtimer_interrupt+0x392/0x980 [ 166.680192][ C0] ? __sysvec_apic_timer_interrupt+0x158/0x5b0 [ 166.686371][ C0] ? sysvec_apic_timer_interrupt+0x9b/0xc0 [ 166.692196][ C0] [ 166.695142][ C0] [ 166.698088][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 166.704281][ C0] ? refcount_dec_and_lock_irqsave+0x111/0x130 [ 166.710454][ C0] ? copy_user_enhanced_fast_string+0xa/0x40 [ 166.716448][ C0] _copy_from_user+0xf3/0x170 [ 166.721144][ C0] restore_sigcontext+0xce/0x700 [ 166.726100][ C0] ? __set_current_blocked+0x2a5/0x2f0 [ 166.731594][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x250/0x250 [ 166.738056][ C0] ? set_current_blocked+0x40/0x40 [ 166.743212][ C0] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 166.749219][ C0] __do_sys_rt_sigreturn+0x190/0x250 [ 166.754521][ C0] ? x32_copy_siginfo_to_user+0x270/0x270 [ 166.760255][ C0] ? syscall_enter_from_user_mode+0x2e/0x230 [ 166.766246][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 166.771458][ C0] ? syscall_enter_from_user_mode+0x2e/0x230 [ 166.777457][ C0] do_syscall_64+0x3b/0xb0 [ 166.781888][ C0] ? clear_bhb_loop+0x45/0xa0 [ 166.786586][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 166.792511][ C0] RIP: 0033:0x7f5b872f9f19 [ 166.796982][ C0] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 [ 166.816600][ C0] RSP: 002b:00007ffea7162f00 EFLAGS: 00000206 ORIG_RAX: 000000000000000f [ 166.825022][ C0] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5b872f9f19 [ 166.833003][ C0] RDX: 00007ffea7162f00 RSI: 00007ffea7163030 RDI: 0000000000000021 [ 166.840978][ C0] RBP: 0000000000000000 R08: 00007f5b872a2990 R09: 00007f5b872a2990 [ 166.848964][ C0] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f5b8734033c [ 166.856966][ C0] R13: 00007f5b8733a106 R14: 00007ffea71634e0 R15: 0000000000000000 [ 166.864976][ C0]