forked to background, child pid 4891 [ 33.307268][ T4892] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.318495][ T4892] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 33.606201][ T4966] sshd (4966) used greatest stack depth: 19896 bytes left OK syzkaller Warning: Permanently added '10.128.1.57' (ED25519) to the list of known hosts. syzkaller login: [ 56.951905][ T5232] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 56.984800][ T5244] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 56.993418][ T5246] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 56.996423][ T5244] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 57.001184][ T5246] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 57.008603][ T5244] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 57.018701][ T5246] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 57.023029][ T5244] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 57.028756][ T5247] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 57.035875][ T5244] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 57.042968][ T5246] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 57.050499][ T5244] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 57.057633][ T5247] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 57.064165][ T5244] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 57.071043][ T5246] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 57.077916][ T5244] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 57.091809][ T5247] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 57.091996][ T5244] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 57.098825][ T5247] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 57.108641][ T5244] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 57.112721][ T5246] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 57.119870][ T5244] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 57.128467][ T5247] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 57.135314][ T5244] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 57.141780][ T5247] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 57.147572][ T5244] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 57.154506][ T5247] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 57.161362][ T5249] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 57.176423][ T5236] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 57.176504][ T5249] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 57.191063][ T53] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 57.198424][ T53] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 57.208237][ T53] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 57.216424][ T5249] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 57.225566][ T5249] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 57.235758][ T5249] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 162.429652][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 162.436687][ C0] rcu: (detected by 0, t=10502 jiffies, g=4693, q=32 ncpus=2) [ 162.444243][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953417-4294942914), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 162.457624][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g4693 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 162.468745][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 162.478733][ C0] rcu: RCU grace-period kthread stack dump: [ 162.484626][ C0] task:rcu_preempt state:R running task stack:26448 pid:17 tgid:17 ppid:2 flags:0x00004000 [ 162.496387][ C0] Call Trace: [ 162.499676][ C0] [ 162.502622][ C0] __schedule+0x1800/0x4a60 [ 162.507195][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.512864][ C0] ? __pfx___schedule+0x10/0x10 [ 162.517740][ C0] ? __pfx_lock_release+0x10/0x10 [ 162.522792][ C0] ? __asan_memset+0x23/0x50 [ 162.527418][ C0] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 162.533254][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 162.539614][ C0] ? schedule+0x90/0x320 [ 162.543882][ C0] schedule+0x14b/0x320 [ 162.548064][ C0] schedule_timeout+0x1be/0x310 [ 162.552936][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 162.558329][ C0] ? __pfx_process_timeout+0x10/0x10 [ 162.563641][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.569303][ C0] ? prepare_to_swait_event+0x32e/0x350 [ 162.574883][ C0] rcu_gp_fqs_loop+0x2df/0x1330 [ 162.579765][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 162.584991][ C0] ? rcu_gp_init+0x1256/0x1630 [ 162.589793][ C0] ? __pfx_rcu_gp_init+0x10/0x10 [ 162.594760][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 162.600074][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 162.605995][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.611655][ C0] ? finish_swait+0xd4/0x1e0 [ 162.616277][ C0] rcu_gp_kthread+0xa7/0x3b0 [ 162.620902][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 162.626129][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 162.632053][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.637713][ C0] ? __kthread_parkme+0x169/0x1d0 [ 162.642773][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 162.648000][ C0] kthread+0x2f2/0x390 [ 162.652089][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 162.657317][ C0] ? __pfx_kthread+0x10/0x10 [ 162.661929][ C0] ret_from_fork+0x4d/0x80 [ 162.666376][ C0] ? __pfx_kthread+0x10/0x10 [ 162.670985][ C0] ret_from_fork_asm+0x1a/0x30 [ 162.675792][ C0] [ 162.678820][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 162.685149][ C0] Sending NMI from CPU 0 to CPUs 1: [ 162.690371][ C1] NMI backtrace for cpu 1 [ 162.690385][ C1] CPU: 1 UID: 0 PID: 5253 Comm: syz-executor475 Not tainted 6.11.0-syzkaller-04003-gfc1dc0d50780 #0 [ 162.690410][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 162.690423][ C1] RIP: 0010:__kasan_check_write+0x0/0x20 [ 162.690460][ C1] Code: 48 8b 0c 24 31 d2 e9 6f e6 ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 89 f6 48 8b 0c 24 ba 01 00 00 00 e9 3c e6 ff ff 66 2e [ 162.690479][ C1] RSP: 0018:ffffc90000a18bd8 EFLAGS: 00000097 [ 162.690499][ C1] RAX: 0000000000000004 RBX: dffffc0000000000 RCX: 0000000000a18c03 [ 162.690515][ C1] RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffff8880b892c880 [ 162.690531][ C1] RBP: ffffc90000a18cb0 R08: ffffffff9423484f R09: 1ffffffff2846909 [ 162.690548][ C1] R10: dffffc0000000000 R11: fffffbfff284690a R12: ffff8880b892c880 [ 162.690565][ C1] R13: 1ffff92000143188 R14: ffffc90000a18c40 R15: 1ffff11017125911 [ 162.690585][ C1] FS: 000055558b9b13c0(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 [ 162.690606][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 162.690621][ C1] CR2: 00007f239b953880 CR3: 000000007bbce000 CR4: 0000000000350ef0 [ 162.690639][ C1] Call Trace: [ 162.690648][ C1] [ 162.690656][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 162.690680][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 162.690715][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 162.690737][ C1] ? nmi_handle+0x2a/0x5a0 [ 162.690769][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 162.690800][ C1] ? nmi_handle+0x151/0x5a0 [ 162.690822][ C1] ? nmi_handle+0x2a/0x5a0 [ 162.690845][ C1] ? __pfx___kasan_check_write+0x10/0x10 [ 162.690879][ C1] ? default_do_nmi+0x63/0x160 [ 162.690903][ C1] ? exc_nmi+0x123/0x1f0 [ 162.690930][ C1] ? end_repeat_nmi+0xf/0x53 [ 162.690967][ C1] ? __pfx___kasan_check_write+0x10/0x10 [ 162.691002][ C1] ? __pfx___kasan_check_write+0x10/0x10 [ 162.691037][ C1] ? __pfx___kasan_check_write+0x10/0x10 [ 162.691072][ C1] [ 162.691080][ C1] [ 162.691087][ C1] do_raw_spin_lock+0x142/0x370 [ 162.691115][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.691151][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 162.691179][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.691210][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 162.691240][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 162.691271][ C1] _raw_spin_lock_irq+0xdf/0x120 [ 162.691298][ C1] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 162.691325][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.691357][ C1] ? posix_timer_fn+0x32c/0x430 [ 162.691388][ C1] __hrtimer_run_queues+0x670/0xd50 [ 162.691417][ C1] ? ktime_get_update_offsets_now+0x3c/0x250 [ 162.691465][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 162.691494][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.691525][ C1] ? ktime_get_update_offsets_now+0x22d/0x250 [ 162.691566][ C1] hrtimer_interrupt+0x396/0x990 [ 162.691609][ C1] __sysvec_apic_timer_interrupt+0x112/0x3f0 [ 162.691635][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 162.691663][ C1] [ 162.691671][ C1] [ 162.691679][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 162.691709][ C1] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 [ 162.691738][ C1] Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 ca a2 a8 f5 48 89 df e8 42 e6 a9 f5 e8 ed e6 d3 f5 fb bf 01 00 00 00 52 a9 9b f5 65 8b 05 33 7e 3c 74 85 c0 74 06 5b e9 ac ea 28 00 [ 162.691755][ C1] RSP: 0018:ffffc9000414fc70 EFLAGS: 00000282 [ 162.691774][ C1] RAX: 4b5182d4e46ac600 RBX: ffff88802f014a00 RCX: ffffffff9a38b903 [ 162.691791][ C1] RDX: dffffc0000000000 RSI: ffffffff8c0ad8e0 RDI: 0000000000000001 [ 162.691807][ C1] RBP: ffffc9000414fdb0 R08: ffffffff901bb8ef R09: 1ffffffff203771d [ 162.691824][ C1] R10: dffffc0000000000 R11: fffffbfff203771e R12: 0000000000000021 [ 162.691840][ C1] R13: 1ffff11005e029d3 R14: ffff88802f014e98 R15: ffff88802f014a00 [ 162.691868][ C1] get_signal+0x14df/0x1740 [ 162.691905][ C1] ? __pfx_get_signal+0x10/0x10 [ 162.691943][ C1] arch_do_signal_or_restart+0x96/0x860 [ 162.691976][ C1] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 162.692006][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 162.692046][ C1] ? syscall_exit_to_user_mode+0xa3/0x370 [ 162.692078][ C1] syscall_exit_to_user_mode+0xc9/0x370 [ 162.692110][ C1] do_syscall_64+0x100/0x230 [ 162.692142][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 162.692176][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.692204][ C1] RIP: 0033:0x7f239b93a6a9 [ 162.692222][ 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 [ 162.692239][ C1] RSP: 002b:00007ffcd41ee858 EFLAGS: 00000246 [ 162.692257][ C1] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f239b93a6a9 [ 162.692272][ C1] RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 162.692286][ C1] RBP: 0000000000000000 R08: 00007f239b800990 R09: 00007f239b800990 [ 162.692302][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f239b990f7c [ 162.692316][ C1] R13: 00007f239b98a117 R14: 00007ffcd41ee890 R15: 0000000000000000 [ 162.692342][ C1] [ 162.692351][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.980 msecs