[ 56.740313][ T5433] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.774515][ T5433] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: [ 57.486878][ T5521] sshd (5521) used greatest stack depth: 20936 bytes left OK syzkaller Warning: Permanently added '10.128.0.195' (ED25519) to the list of known hosts. syzkaller login: [ 85.231677][ T5776] cgroup: Unknown subsys name 'net' [ 85.350801][ T5776] cgroup: Unknown subsys name 'rlimit' [ 85.520939][ T5787] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 85.529262][ T5787] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 85.538932][ T5792] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 85.552084][ T5790] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 85.559625][ T5790] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 85.567843][ T5790] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 85.575667][ T5793] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 85.583853][ T5790] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 85.592400][ T5793] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 85.602028][ T5790] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 85.603371][ T5797] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 85.610183][ T5793] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 85.618168][ T5797] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 85.627390][ T5790] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 85.638487][ T5790] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 85.642311][ T5797] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 85.654791][ T5790] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 85.654816][ T5799] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 85.664310][ T5790] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 85.680535][ T5799] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 85.687525][ T5790] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 85.701043][ T5790] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 85.708429][ T5799] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 85.713825][ T5792] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 86.027072][ T2993] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.036925][ T2993] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.068438][ T1126] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.076422][ T1126] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.111181][ T1132] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.119067][ T1132] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.138939][ T1126] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.151203][ T1126] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.193235][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.206574][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.248481][ T1126] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.263459][ T1126] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 86.298947][ T1132] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.331297][ T1132] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.420558][ T1132] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.452222][ T1132] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 191.490830][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 191.498009][ C1] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5789/1:b..l [ 191.506239][ C1] rcu: (detected by 1, t=10503 jiffies, g=9613, q=38 ncpus=2) [ 191.513848][ C1] task:udevd state:R running task stack:26632 pid:5789 ppid:5137 flags:0x00004002 [ 191.525256][ C1] Call Trace: [ 191.528584][ C1] [ 191.531564][ C1] __schedule+0x1553/0x45a0 [ 191.536164][ C1] ? mark_lock+0x94/0x320 [ 191.540547][ C1] ? mark_lock+0x94/0x320 [ 191.544935][ C1] ? asan.module_dtor+0x20/0x20 [ 191.549838][ C1] ? mark_lock+0x94/0x320 [ 191.554227][ C1] ? lockdep_hardirqs_on_prepare+0x40d/0x770 [ 191.560266][ C1] ? preempt_schedule_irq+0xb4/0x150 [ 191.565598][ C1] preempt_schedule_irq+0xbf/0x150 [ 191.570750][ C1] ? preempt_schedule_notrace+0x110/0x110 [ 191.576521][ C1] ? rcu_irq_exit_check_preempt+0xdf/0x210 [ 191.582387][ C1] irqentry_exit+0x67/0x70 [ 191.586857][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 191.592893][ C1] RIP: 0010:lock_acquire+0x208/0x420 [ 191.598231][ C1] Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3c 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 65 48 8b 04 25 [ 191.617878][ C1] RSP: 0018:ffffc9000458f5a0 EFLAGS: 00000206 [ 191.624006][ C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 256779044af82300 [ 191.632194][ C1] RDX: 0000000000000000 RSI: ffffffff8acadb60 RDI: ffffffff8b1c8fa0 [ 191.640206][ C1] RBP: ffffc9000458f6a8 R08: dffffc0000000000 R09: 1ffffffff2238ca0 [ 191.648227][ C1] R10: dffffc0000000000 R11: fffffbfff2238ca1 R12: 1ffff920008b1ec0 [ 191.656251][ C1] R13: ffffffff8d1320e0 R14: 0000000000000246 R15: dffffc0000000000 [ 191.664300][ C1] ? read_lock_is_recursive+0x20/0x20 [ 191.669728][ C1] ? __lock_acquire+0x7d40/0x7d40 [ 191.674809][ C1] ? verify_lock_unused+0x140/0x140 [ 191.680072][ C1] ? get_obj_cgroup_from_current+0xd4/0x280 [ 191.686029][ C1] get_obj_cgroup_from_current+0xf0/0x280 [ 191.691796][ C1] ? get_obj_cgroup_from_current+0xd4/0x280 [ 191.697744][ C1] slab_pre_alloc_hook+0x91/0x310 [ 191.702834][ C1] kmem_cache_alloc_lru+0x4d/0x2d0 [ 191.708001][ C1] ? __d_alloc+0x31/0x730 [ 191.712392][ C1] __d_alloc+0x31/0x730 [ 191.716610][ C1] d_alloc_parallel+0xe0/0x1530 [ 191.721507][ C1] ? __d_lookup+0x8f/0x7c0 [ 191.726228][ C1] ? __lock_acquire+0x7d40/0x7d40 [ 191.731326][ C1] ? __d_lookup+0x8f/0x7c0 [ 191.735789][ C1] ? d_hash_and_lookup+0x1b0/0x1b0 [ 191.741033][ C1] path_openat+0x933/0x3230 [ 191.745614][ C1] ? verify_lock_unused+0x140/0x140 [ 191.750866][ C1] ? do_filp_open+0x430/0x430 [ 191.755608][ C1] ? __virt_addr_valid+0x18c/0x540 [ 191.760806][ C1] do_filp_open+0x1f5/0x430 [ 191.765367][ C1] ? vfs_tmpfile+0x490/0x490 [ 191.770018][ C1] ? _raw_spin_unlock+0x28/0x40 [ 191.775020][ C1] ? alloc_fd+0x58f/0x630 [ 191.779406][ C1] do_sys_openat2+0x134/0x1d0 [ 191.784144][ C1] ? do_sys_open+0xe0/0xe0 [ 191.788609][ C1] ? lockdep_hardirqs_on_prepare+0x40d/0x770 [ 191.794645][ C1] ? lock_chain_count+0x20/0x20 [ 191.799551][ C1] __x64_sys_openat+0x139/0x160 [ 191.804458][ C1] do_syscall_64+0x55/0xa0 [ 191.808917][ C1] ? clear_bhb_loop+0x40/0x90 [ 191.813646][ C1] ? clear_bhb_loop+0x40/0x90 [ 191.818375][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 191.824410][ C1] RIP: 0033:0x7fa1337c7407 [ 191.828889][ C1] RSP: 002b:00007ffce6a53390 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 191.837357][ C1] RAX: ffffffffffffffda RBX: 00007fa13319b880 RCX: 00007fa1337c7407 [ 191.845373][ C1] RDX: 0000000000080000 RSI: 00007ffce6a53500 RDI: ffffffffffffff9c [ 191.853389][ C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 191.861419][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00005599cd1647f5 [ 191.869438][ C1] R13: 00005599cd1647f5 R14: 0000000000000001 R15: 00005599cd17f140 [ 191.877470][ C1] [ 191.880533][ C1] rcu: rcu_preempt kthread starved for 10540 jiffies! g9613 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 191.891688][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 191.901696][ C1] rcu: RCU grace-period kthread stack dump: [ 191.907622][ C1] task:rcu_preempt state:R running task stack:27656 pid:17 ppid:2 flags:0x00004000 [ 191.918458][ C1] Call Trace: [ 191.921776][ C1] [ 191.924749][ C1] __schedule+0x1553/0x45a0 [ 191.929335][ C1] ? _raw_spin_unlock_irqrestore+0x86/0x120 [ 191.935288][ C1] ? _raw_spin_unlock_irqrestore+0xc5/0x120 [ 191.941232][ C1] ? asan.module_dtor+0x20/0x20 [ 191.946146][ C1] ? enqueue_timer+0x23d/0x550 [ 191.950963][ C1] ? __mod_timer+0x984/0xdb0 [ 191.955616][ C1] schedule+0xbd/0x170 [ 191.959749][ C1] schedule_timeout+0x188/0x2d0 [ 191.964654][ C1] ? console_conditional_schedule+0x40/0x40 [ 191.970598][ C1] ? update_process_times+0x1b0/0x1b0 [ 191.976025][ C1] ? prepare_to_swait_event+0x339/0x360 [ 191.981622][ C1] rcu_gp_fqs_loop+0x313/0x1590 [ 191.986526][ C1] ? rcu_gp_init+0x1162/0x1560 [ 191.991342][ C1] ? rcu_gp_kthread+0x3b0/0x3b0 [ 191.996245][ C1] ? lockdep_hardirqs_on_prepare+0x40d/0x770 [ 192.002276][ C1] ? rcu_gp_init+0x1560/0x1560 [ 192.007077][ C1] ? rcu_gp_cleanup+0xb41/0xc90 [ 192.011977][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 192.017319][ C1] ? lockdep_hardirqs_on+0x98/0x150 [ 192.022696][ C1] rcu_gp_kthread+0x9d/0x3b0 [ 192.027342][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 192.032508][ C1] ? __kthread_parkme+0x7a/0x1c0 [ 192.037497][ C1] ? __kthread_parkme+0x162/0x1c0 [ 192.042576][ C1] kthread+0x2fa/0x390 [ 192.046866][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 192.052107][ C1] ? kthread_blkcg+0xd0/0xd0 [ 192.056919][ C1] ret_from_fork+0x48/0x80 [ 192.061392][ C1] ? kthread_blkcg+0xd0/0xd0 [ 192.066036][ C1] ret_from_fork_asm+0x11/0x20 [ 192.070884][ C1] [ 192.073954][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 192.080306][ C1] Sending NMI from CPU 1 to CPUs 0: [ 192.085562][ C0] NMI backtrace for cpu 0 [ 192.085583][ C0] CPU: 0 PID: 5807 Comm: syz-executor298 Not tainted syzkaller #0 [ 192.085599][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 192.085612][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x60 [ 192.085638][ C0] Code: 00 00 f3 0f 1e fa 53 48 89 fb e8 13 00 00 00 48 8b 3d dc f9 03 0d 48 89 de 5b e9 d3 67 57 00 cc cc cc f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d b0 93 7c 7e 65 8b 15 b1 93 7c 7e 81 e2 00 01 ff 00 74 [ 192.085652][ C0] RSP: 0018:ffffc90000007d00 EFLAGS: 00000006 [ 192.085666][ C0] RAX: ffffffff8a76c7e6 RBX: ffff8880b8e2b7d0 RCX: ffff88802c983c00 [ 192.085678][ C0] RDX: 0000000000010000 RSI: ffff88802bcee0b0 RDI: ffff8880b8e2c050 [ 192.085690][ C0] RBP: 1ffff1100579dc16 R08: ffffffff9757acdb R09: 1ffffffff2eaf59b [ 192.085702][ C0] R10: dffffc0000000000 R11: fffffbfff2eaf59c R12: ffff88802bcee0b0 [ 192.085714][ C0] R13: dffffc0000000000 R14: ffff88802bcee0b0 R15: ffff8880b8e2c050 [ 192.085726][ C0] FS: 00005555898253c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 192.085741][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 192.085752][ C0] CR2: 000020000006b000 CR3: 000000007b9fa000 CR4: 00000000003506f0 [ 192.085766][ C0] Call Trace: [ 192.085772][ C0] [ 192.085777][ C0] timerqueue_del+0x56/0x100 [ 192.085803][ C0] __hrtimer_run_queues+0x37f/0xc40 [ 192.085821][ C0] ? ktime_get_update_offsets_now+0x99/0x3f0 [ 192.085851][ C0] ? hrtimer_interrupt+0x9c0/0x9c0 [ 192.085870][ C0] ? ktime_get_update_offsets_now+0x3d2/0x3f0 [ 192.085895][ C0] hrtimer_interrupt+0x3c9/0x9c0 [ 192.085927][ C0] __sysvec_apic_timer_interrupt+0xfb/0x3b0 [ 192.085950][ C0] sysvec_apic_timer_interrupt+0x9f/0xc0 [ 192.085971][ C0] [ 192.085975][ C0] [ 192.085980][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 192.086002][ C0] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 [ 192.086024][ C0] Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 ea 97 d8 f6 48 89 df e8 a2 6c d9 f6 e8 1d 7f fd f6 fb bf 01 00 00 00 82 73 cc f6 65 8b 05 c3 a0 73 75 85 c0 74 02 5b c3 e8 40 88 70 [ 192.086037][ C0] RSP: 0018:ffffc9000467fc78 EFLAGS: 00000286 [ 192.086049][ C0] RAX: d686ec5f7a3d3600 RBX: ffff88802bb3ae40 RCX: d686ec5f7a3d3600 [ 192.086061][ C0] RDX: dffffc0000000000 RSI: ffffffff8acac9e0 RDI: 0000000000000001 [ 192.086072][ C0] RBP: ffff88802bb3b2d8 R08: ffffffff8e8b19af R09: 1ffffffff1d16335 [ 192.086084][ C0] R10: dffffc0000000000 R11: fffffbfff1d16336 R12: 1ffff1100576765b [ 192.086096][ C0] R13: 0000000000000021 R14: dffffc0000000000 R15: 0000000000000000 [ 192.086114][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 192.086134][ C0] get_signal+0x11f5/0x13f0 [ 192.086161][ C0] arch_do_signal_or_restart+0xc2/0x800 [ 192.086189][ C0] ? get_sigframe_size+0x20/0x20 [ 192.086223][ C0] ? exit_to_user_mode_loop+0x3b/0x110 [ 192.086249][ C0] exit_to_user_mode_loop+0x70/0x110 [ 192.086272][ C0] exit_to_user_mode_prepare+0xee/0x180 [ 192.086296][ C0] syscall_exit_to_user_mode+0x1a/0x50 [ 192.086317][ C0] do_syscall_64+0x61/0xa0 [ 192.086332][ C0] ? clear_bhb_loop+0x40/0x90 [ 192.086352][ C0] ? clear_bhb_loop+0x40/0x90 [ 192.086373][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 192.086394][ C0] RIP: 0033:0x7f417fba761e [ 192.086407][ C0] Code: 08 0f 85 e5 e1 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08 [ 192.086420][ C0] RSP: 002b:00007ffc44a80928 EFLAGS: 00000246 [ 192.086431][ C0] RAX: fffffffffffffff7 RBX: 00005555898253c0 RCX: 00007f417fba761e [ 192.086443][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 192.086452][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 192.086461][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 192.086470][ C0] R13: 00007ffc44a809c0 R14: 00007ffc44a80a00 R15: 0000000000000000 [ 192.086489][ C0] [ 192.474077][ C1] sched: RT throttling activated