DUID 00:04:d9:3a:76:1c:b4:63:be:bc:0b:c2:08:9c:83:36:98:31 forked to background, child pid 4695 [ 48.182871][ T4696] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.208201][ T4696] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 86.856937][ T27] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.6' (ED25519) to the list of known hosts. [ 176.868494][ T5063] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 176.871096][ T5064] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 176.884205][ T5064] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 176.893060][ T5064] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 176.901893][ T5064] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 176.910771][ T5066] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 176.918582][ T5064] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 176.926587][ T5066] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 176.933806][ T5066] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 176.934042][ T5069] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 176.941947][ T5064] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 176.950005][ T5069] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 176.956891][ T5064] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 176.965511][ T5069] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 176.969263][ T5066] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 176.977535][ T5069] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 176.983976][ T5066] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 176.991092][ T5069] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 176.998158][ T5066] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 177.006336][ T5071] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 177.011376][ T5066] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 177.019274][ T5069] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 177.032314][ T5069] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 177.040987][ T5069] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 177.057210][ T5066] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 177.057791][ T5058] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 177.071874][ T5058] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 177.080543][ T4433] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 177.089349][ T5058] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 177.096768][ T5060] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 177.116903][ T5063] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 177.125794][ T5066] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 177.135358][ T5066] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 177.155238][ T5066] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 177.169119][ T50] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 177.176723][ T50] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 executing program executing program [ 282.554902][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 282.562071][ C0] rcu: (detected by 0, t=10502 jiffies, g=7897, q=14 ncpus=2) [ 282.569653][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10501 (4294965363-4294954862), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 282.583061][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g7897 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 282.594200][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 282.604198][ C0] rcu: RCU grace-period kthread stack dump: [ 282.610110][ C0] task:rcu_preempt state:R running task stack:24616 pid:17 ppid:2 flags:0x00004000 [ 282.620934][ C0] Call Trace: [ 282.624243][ C0] [ 282.627210][ C0] __schedule+0x196c/0x4af0 [ 282.631970][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 282.637958][ C0] ? release_firmware_map_entry+0x190/0x190 [ 282.643899][ C0] ? __asan_memset+0x23/0x40 [ 282.648616][ C0] ? _raw_spin_unlock+0x40/0x40 [ 282.653523][ C0] schedule+0xc3/0x180 [ 282.657640][ C0] schedule_timeout+0x1bd/0x300 [ 282.662537][ C0] ? console_conditional_schedule+0x40/0x40 [ 282.668473][ C0] ? update_process_times+0x1b0/0x1b0 [ 282.674014][ C0] ? prepare_to_swait_event+0x32d/0x350 [ 282.679622][ C0] rcu_gp_fqs_loop+0x2c6/0x1010 [ 282.684522][ C0] ? dump_blkd_tasks+0x810/0x810 [ 282.689504][ C0] ? lockdep_hardirqs_on+0x98/0x140 [ 282.694842][ C0] ? rcu_gp_init+0x15d0/0x15d0 [ 282.699672][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 282.705619][ C0] ? finish_swait+0xd3/0x1e0 [ 282.710258][ C0] rcu_gp_kthread+0xa7/0x3b0 [ 282.714889][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 282.720032][ C0] ? __kthread_parkme+0x168/0x1c0 [ 282.725232][ C0] kthread+0x2d3/0x370 [ 282.729334][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 282.734562][ C0] ? kthread_blkcg+0xd0/0xd0 [ 282.739186][ C0] ret_from_fork+0x48/0x80 [ 282.743670][ C0] ? kthread_blkcg+0xd0/0xd0 [ 282.748303][ C0] ret_from_fork_asm+0x11/0x20 [ 282.753154][ C0] [ 282.756210][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 282.762558][ C0] Sending NMI from CPU 0 to CPUs 1: [ 282.767805][ C1] NMI backtrace for cpu 1 [ 282.767816][ C1] CPU: 1 PID: 5080 Comm: syz-executor638 Not tainted 6.6.0-rc7-syzkaller-00151-g56567a20b22b #0 [ 282.767834][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 282.767844][ C1] RIP: 0010:__lock_acquire+0x423/0x7f70 [ 282.767869][ C1] Code: b8 00 00 00 00 00 fc ff df 48 8b 74 24 60 4c 89 3b 4c 8b 7c 24 38 49 8d 5c f7 10 48 89 d8 48 c1 e8 03 48 89 84 24 08 01 00 00 <42> 80 3c 00 00 74 1a 48 89 df e8 ae bd 7b 00 45 89 e9 49 b8 00 00 [ 282.767883][ C1] RSP: 0018:ffffc900001f0800 EFLAGS: 00000802 [ 282.767898][ C1] RAX: 1ffff110041ab15b RBX: ffff888020d58ad8 RCX: 000000000000069e [ 282.767910][ C1] RDX: ffff888075fe6000 RSI: 0000000000000000 RDI: ffff888075fe6038 [ 282.767922][ C1] RBP: ffffc900001f0ac8 R08: dffffc0000000000 R09: 000000000000069e [ 282.767933][ C1] R10: dffffc0000000000 R11: fffffbfff1d32d8e R12: ffff888020d58000 [ 282.767945][ C1] R13: 000000000000069e R14: 0000000000000000 R15: ffff888020d58ac8 [ 282.767956][ C1] FS: 0000555556fa43c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 282.767970][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 282.767981][ C1] CR2: 000000002006b000 CR3: 0000000074338000 CR4: 00000000003506e0 [ 282.767996][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 282.768005][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 282.768016][ C1] Call Trace: [ 282.768023][ C1] [ 282.768030][ C1] ? nmi_cpu_backtrace+0x3be/0x4d0 [ 282.768122][ C1] ? read_lock_is_recursive+0x20/0x20 [ 282.768142][ C1] ? nmi_trigger_cpumask_backtrace+0x310/0x310 [ 282.768176][ C1] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 282.768198][ C1] ? nmi_handle+0x14c/0x570 [ 282.768224][ C1] ? nmi_handle+0x2a/0x570 [ 282.768245][ C1] ? __lock_acquire+0x423/0x7f70 [ 282.768262][ C1] ? default_do_nmi+0x62/0x150 [ 282.768286][ C1] ? exc_nmi+0x11e/0x1f0 [ 282.768309][ C1] ? end_repeat_nmi+0x16/0x31 [ 282.768378][ C1] ? __lock_acquire+0x423/0x7f70 [ 282.768397][ C1] ? __lock_acquire+0x423/0x7f70 [ 282.768417][ C1] ? __lock_acquire+0x423/0x7f70 [ 282.768435][ C1] [ 282.768440][ C1] [ 282.768458][ C1] ? __lock_acquire+0x1345/0x7f70 [ 282.768476][ C1] ? verify_lock_unused+0x140/0x140 [ 282.768500][ C1] ? __lock_acquire+0x1345/0x7f70 [ 282.768523][ C1] ? verify_lock_unused+0x140/0x140 [ 282.768546][ C1] lock_acquire+0x1e3/0x520 [ 282.768564][ C1] ? posix_timer_fn+0x33/0x390 [ 282.768586][ C1] ? read_lock_is_recursive+0x20/0x20 [ 282.768608][ C1] ? debug_deactivate+0x1b/0x1f0 [ 282.768627][ C1] ? __hrtimer_run_queues+0x490/0xd10 [ 282.768646][ C1] ? __lock_acquire+0x7f70/0x7f70 [ 282.768667][ C1] _raw_spin_lock_irqsave+0xd5/0x120 [ 282.768687][ C1] ? posix_timer_fn+0x33/0x390 [ 282.768703][ C1] ? _raw_spin_lock+0x40/0x40 [ 282.768723][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 282.768742][ C1] ? common_timer_wait_running+0x10/0x10 [ 282.768761][ C1] posix_timer_fn+0x33/0x390 [ 282.768780][ C1] ? common_timer_wait_running+0x10/0x10 [ 282.768797][ C1] __hrtimer_run_queues+0x59f/0xd10 [ 282.768824][ C1] ? hrtimer_interrupt+0x980/0x980 [ 282.768841][ C1] ? ktime_get_update_offsets_now+0x40b/0x420 [ 282.768866][ C1] hrtimer_interrupt+0x396/0x980 [ 282.768896][ C1] __sysvec_apic_timer_interrupt+0x104/0x390 [ 282.768916][ C1] sysvec_apic_timer_interrupt+0x90/0xb0 [ 282.768943][ C1] [ 282.768948][ C1] [ 282.768953][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 282.768977][ C1] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 [ 282.768995][ C1] Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 3a d6 96 f6 48 89 df e8 42 c6 97 f6 e8 3d 3b be f6 fb bf 01 00 00 00 62 cc 89 f6 65 8b 05 53 04 2d 75 85 c0 74 02 5b c3 e8 f0 d1 29 [ 282.769007][ C1] RSP: 0018:ffffc90003befc50 EFLAGS: 00000282 [ 282.769021][ C1] RAX: b8c9b1b7303f2300 RBX: ffff88802778ca00 RCX: ffffffff91edc303 [ 282.769034][ C1] RDX: dffffc0000000000 RSI: ffffffff8b0aa520 RDI: 0000000000000001 [ 282.769045][ C1] RBP: ffffc90003befd90 R08: ffffffff8e996c6f R09: 1ffffffff1d32d8d [ 282.769056][ C1] R10: dffffc0000000000 R11: fffffbfff1d32d8e R12: 1ffff11004ef19d3 [ 282.769068][ C1] R13: 000000001c000004 R14: 0000000000000021 R15: ffff88802778ce98 [ 282.769088][ C1] get_signal+0x155d/0x1840 [ 282.769114][ C1] ? __might_fault+0xa5/0x120 [ 282.769192][ C1] ? ptrace_notify+0x380/0x380 [ 282.769221][ C1] ? do_sigaltstack+0x3f3/0x610 [ 282.769242][ C1] arch_do_signal_or_restart+0x96/0x860 [ 282.769274][ C1] ? get_sigframe_size+0x20/0x20 [ 282.769296][ C1] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 282.769321][ C1] ? exit_to_user_mode_loop+0x39/0x100 [ 282.769345][ C1] exit_to_user_mode_loop+0x6a/0x100 [ 282.769369][ C1] exit_to_user_mode_prepare+0xb1/0x140 [ 282.769393][ C1] syscall_exit_to_user_mode+0x64/0x280 [ 282.769411][ C1] do_syscall_64+0x4d/0xc0 [ 282.769433][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 282.769456][ C1] RIP: 0033:0x7f873defce79 [ 282.769474][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 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 [ 282.769487][ C1] RSP: 002b:00007fff10c32d28 EFLAGS: 00000246 [ 282.769500][ C1] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f873defce79 [ 282.769510][ C1] RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 282.769519][ C1] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000 [ 282.769529][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555556fa4370 [ 282.769539][ C1] R13: 0000000000000002 R14: 00007fff10c32da0 R15: 00007fff10c32d90 [ 282.769557][ C1] [ 282.769564][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.759 msecs [ 283.335564][ C0] sched: RT throttling activated