Warning: Permanently added '10.128.0.80' (ED25519) to the list of known hosts. syzkaller login: [ 46.452573][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.454308][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.457570][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.530511][ T566] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.532199][ T566] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.544365][ T566] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 46.582915][ T566] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.584781][ T566] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.588078][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.591244][ T1852] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.593297][ T1852] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.595570][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.597626][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.599333][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 46.605153][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.643489][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.645294][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.647619][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 46.669879][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.671721][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.673965][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 46.697262][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.698957][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.702865][ T1852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 46.739669][ T1852] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.741437][ T1852] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.743747][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 151.709471][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 151.710914][ C0] rcu: 0-...!: (10500 ticks this GP) idle=09b/1/0x4000000000000002 softirq=4793/4793 fqs=2 [ 151.713280][ C0] (t=10501 jiffies g=3745 q=186) [ 151.714272][ C0] rcu: rcu_preempt kthread starved for 10497 jiffies! g3745 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 151.716627][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 151.718606][ C0] rcu: RCU grace-period kthread stack dump: [ 151.719884][ C0] task:rcu_preempt state:R running task stack: 0 pid: 15 ppid: 2 flags:0x00000008 [ 151.722243][ C0] Call trace: [ 151.722970][ C0] __switch_to+0x308/0x5e8 [ 151.723891][ C0] __schedule+0xf10/0x1e48 [ 151.724807][ C0] schedule+0x11c/0x1c8 [ 151.725718][ C0] schedule_timeout+0x1d8/0x344 [ 151.726605][ C0] rcu_gp_fqs_loop+0x26c/0x13d4 [ 151.727619][ C0] rcu_gp_kthread+0xc4/0x2c4 [ 151.728475][ C0] kthread+0x37c/0x45c [ 151.729351][ C0] ret_from_fork+0x10/0x20 [ 151.730264][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 151.731665][ C0] Task dump for CPU 1: [ 151.732559][ C0] task:syz-executor283 state:R running task stack: 0 pid: 4058 ppid: 4033 flags:0x00000001 [ 151.734935][ C0] Call trace: [ 151.735618][ C0] __switch_to+0x308/0x5e8 [ 151.736579][ C0] 0xffff0000ccc7c060 [ 151.737387][ C0] Task dump for CPU 0: [ 151.738226][ C0] task:syz-executor283 state:R running task stack: 0 pid: 4057 ppid: 4032 flags:0x00000001 [ 151.740479][ C0] Call trace: [ 151.741168][ C0] dump_backtrace+0x0/0x530 [ 151.742094][ C0] show_stack+0x2c/0x3c [ 151.742975][ C0] sched_show_task+0x43c/0x574 [ 151.744035][ C0] dump_cpu_task+0x84/0xa8 [ 151.744964][ C0] rcu_dump_cpu_stacks+0x2d8/0x540 [ 151.746072][ C0] print_cpu_stall+0x558/0xc7c [ 151.746996][ C0] rcu_sched_clock_irq+0xd20/0x1b8c [ 151.748097][ C0] update_process_times+0x1d4/0x270 [ 151.749197][ C0] tick_sched_timer+0x340/0x4f8 [ 151.750199][ C0] __hrtimer_run_queues+0x458/0xca4 [ 151.751240][ C0] hrtimer_interrupt+0x2c0/0xb64 [ 151.752276][ C0] arch_timer_handler_virt+0x74/0x88 [ 151.753370][ C0] handle_percpu_devid_irq+0x29c/0x7fc [ 151.754575][ C0] handle_domain_irq+0xec/0x178 [ 151.755636][ C0] gic_handle_irq+0x78/0x1c8 [ 151.756604][ C0] call_on_irq_stack+0x24/0x4c [ 151.757639][ C0] do_interrupt_handler+0x74/0x94 [ 151.758814][ C0] el1_interrupt+0x30/0x58 [ 151.759730][ C0] el1h_64_irq_handler+0x18/0x24 [ 151.760783][ C0] el1h_64_irq+0x78/0x7c [ 151.761731][ C0] arch_local_irq_restore+0x8/0x10 [ 151.762816][ C0] ___might_sleep+0x98/0x4dc [ 151.763730][ C0] __might_sleep+0x98/0xf0 [ 151.764640][ C0] __might_fault+0x80/0x128 [ 151.765557][ C0] __arm64_sys_rt_sigreturn+0x644/0x22ec [ 151.766727][ C0] invoke_syscall+0x98/0x2b8 [ 151.767719][ C0] el0_svc_common+0x138/0x258 [ 151.768735][ C0] do_el0_svc+0x58/0x14c [ 151.769669][ C0] el0_svc+0x7c/0x1f0 [ 151.770473][ C0] el0t_64_sync_handler+0x84/0xe4 [ 151.771529][ C0] el0t_64_sync+0x1a0/0x1a4