Warning: Permanently added '10.128.1.20' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 436.306138][ T30] audit: type=1400 audit(1703538652.680:66): avc: denied { execmem } for pid=703 comm="syz-executor303" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 536.306764][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 536.313544][ C1] (detected by 1, t=10002 jiffies, g=3869, q=276) [ 536.319883][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10001 (4294990851-4294980850), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 536.333073][ C1] rcu: rcu_preempt kthread starved for 10002 jiffies! g3869 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 536.344007][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 536.353819][ C1] rcu: RCU grace-period kthread stack dump: [ 536.359543][ C1] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 536.370131][ C1] Call Trace: [ 536.373256][ C1] [ 536.376041][ C1] __schedule+0xcbe/0x1580 [ 536.380423][ C1] ? __sched_text_start+0x8/0x8 [ 536.385109][ C1] ? del_timer_sync+0x1bc/0x230 [ 536.389798][ C1] ? __kasan_check_write+0x14/0x20 [ 536.394755][ C1] ? __kasan_check_write+0x14/0x20 [ 536.399698][ C1] schedule+0x11f/0x1e0 [ 536.403689][ C1] schedule_timeout+0x18c/0x370 [ 536.408368][ C1] ? __kasan_check_write+0x14/0x20 [ 536.413314][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 536.418613][ C1] ? console_conditional_schedule+0x30/0x30 [ 536.424340][ C1] ? update_process_times+0x200/0x200 [ 536.429547][ C1] ? prepare_to_swait_event+0x308/0x320 [ 536.435031][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 536.439629][ C1] ? dump_blkd_tasks+0x7e0/0x7e0 [ 536.444404][ C1] ? rcu_gp_init+0xc30/0xc30 [ 536.448830][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 536.453869][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 536.458298][ C1] rcu_gp_kthread+0xa4/0x350 [ 536.462718][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 536.467405][ C1] ? rcu_barrier_callback+0x50/0x50 [ 536.472439][ C1] ? __kasan_check_read+0x11/0x20 [ 536.477299][ C1] ? __kthread_parkme+0xb2/0x200 [ 536.482070][ C1] kthread+0x421/0x510 [ 536.485976][ C1] ? rcu_barrier_callback+0x50/0x50 [ 536.491009][ C1] ? kthread_blkcg+0xd0/0xd0 [ 536.495788][ C1] ret_from_fork+0x1f/0x30 [ 536.500041][ C1] [ 536.502901][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 536.509063][ C1] Sending NMI from CPU 1 to CPUs 0: [ 536.514108][ C0] NMI backtrace for cpu 0 [ 536.514117][ C0] CPU: 0 PID: 718 Comm: syz-executor303 Not tainted 5.15.141-syzkaller-00899-g28e3f5851a99 #0 [ 536.514132][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 536.514140][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514229][ C0] Code: 8b 15 a0 65 92 7e 65 8b 05 a1 65 92 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba 5c 0b 00 00 00 74 52 8b 82 38 0b 00 00 <83> f8 03 75 47 48 8b 8a 40 0b 00 00 44 8b 92 3c 0b 00 00 49 c1 e2 [ 536.514240][ C0] RSP: 0018:ffffc90000a87a88 EFLAGS: 00000046 [ 536.514254][ C0] RAX: 0000000000000000 RBX: 0000000000000020 RCX: ffff88811e8b0000 [ 536.514264][ C0] RDX: ffff88811e8b0000 RSI: 0000000000000021 RDI: 0000000000000000 [ 536.514274][ C0] RBP: ffffc90000a87a88 R08: ffffffff8144ceb7 R09: 0000000000000003 [ 536.514284][ C0] R10: fffff52000150f68 R11: dffffc0000000001 R12: 0000000100000000 [ 536.514295][ C0] R13: 0000000100000000 R14: 0000000000000000 R15: ffff88811e734040 [ 536.514305][ C0] FS: 00007fea0a99f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 536.514318][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 536.514329][ C0] CR2: 00007fea0a99ee40 CR3: 000000011ded9000 CR4: 00000000003506b0 [ 536.514342][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 536.514351][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 536.514360][ C0] Call Trace: [ 536.514364][ C0] [ 536.514369][ C0] ? show_regs+0x58/0x60 [ 536.514419][ C0] ? nmi_cpu_backtrace+0x29f/0x300 [ 536.514461][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 536.514477][ C0] ? __sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514494][ C0] ? __sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514510][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 536.514541][ C0] ? nmi_handle+0xa8/0x280 [ 536.514556][ C0] ? __sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514573][ C0] ? default_do_nmi+0x69/0x160 [ 536.514601][ C0] ? exc_nmi+0xaf/0x120 [ 536.514613][ C0] ? end_repeat_nmi+0x16/0x31 [ 536.514653][ C0] ? __dequeue_signal+0xb7/0x600 [ 536.514683][ C0] ? __sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514699][ C0] ? __sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514716][ C0] ? __sanitizer_cov_trace_const_cmp4+0x34/0x90 [ 536.514732][ C0] [ 536.514736][ C0] [ 536.514740][ C0] __dequeue_signal+0xb7/0x600 [ 536.514755][ C0] dequeue_signal+0x10c/0x520 [ 536.514769][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 536.514783][ C0] ? unhandled_signal+0x150/0x150 [ 536.514799][ C0] get_signal+0x7cf/0x1630 [ 536.514815][ C0] arch_do_signal_or_restart+0xbd/0x1680 [ 536.514829][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x1e0/0x1e0 [ 536.514843][ C0] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 536.514858][ C0] ? __kasan_check_write+0x14/0x20 [ 536.514873][ C0] ? _copy_from_user+0x96/0xd0 [ 536.514922][ C0] ? restore_altstack+0x274/0x400 [ 536.514952][ C0] ? get_sigframe_size+0x10/0x10 [ 536.514965][ C0] ? __ia32_sys_sigaltstack+0x70/0x70 [ 536.514983][ C0] ? __do_sys_rt_sigreturn+0x160/0x1e0 [ 536.514997][ C0] exit_to_user_mode_loop+0xa0/0xe0 [ 536.515012][ C0] exit_to_user_mode_prepare+0x5a/0xa0 [ 536.515026][ C0] syscall_exit_to_user_mode+0x26/0x160 [ 536.515055][ C0] do_syscall_64+0x49/0xb0 [ 536.515071][ C0] ? sysvec_apic_timer_interrupt+0x55/0xc0 [ 536.515085][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 536.515100][ C0] RIP: 0033:0x7fea0a9de417 [ 536.515114][ C0] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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 [ 536.515125][ C0] RSP: 002b:00007fea0a99f238 EFLAGS: 00000246 [ 536.515137][ C0] RAX: 00000000000000ca RBX: 00007fea0aa68308 RCX: 00007fea0a9de419 [ 536.515147][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fea0aa68308 [ 536.515156][ C0] RBP: 00007fea0aa68300 R08: 00007fea0a99f6c0 R09: 00007fea0a99f6c0 [ 536.515167][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fea0aa6830c [ 536.515176][ C0] R13: 0000000000000000 R14: 00007ffd1987e750 R15: 00007ffd1987e838 [ 536.515188][ C0] [ 536.515193][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.084 msecs [ 715.486782][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 278s! [ 715.495511][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 273s! [ 715.504470][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 277s! [ 715.513149][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 279s! [ 715.521389][ C0] Showing busy workqueues and worker pools: [ 715.527115][ C0] workqueue events: flags=0x0 [ 715.531617][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 715.531655][ C0] pending: psi_avgs_work, vmstat_shepherd [ 715.531733][ C0] workqueue events_unbound: flags=0x2 [ 715.550203][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 715.550237][ C0] pending: toggle_allocation_gate, flush_memcg_stats_dwork [ 715.550339][ C0] workqueue events_power_efficient: flags=0x80 [ 715.570716][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 715.570760][ C0] pending: neigh_periodic_work, neigh_periodic_work, gc_worker, check_lifetime [ 715.570942][ C0] workqueue mm_percpu_wq: flags=0x8 [ 715.592522][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.592561][ C0] pending: vmstat_update [ 715.592583][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.592617][ C0] pending: vmstat_update [ 715.592638][ C0] workqueue writeback: flags=0x4a [ 715.621173][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 715.621206][ C0] pending: wb_workfn [ 715.621301][ C0] workqueue kblockd: flags=0x18 [ 715.637074][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 715.637111][ C0] pending: blk_mq_timeout_work [ 715.637201][ C0] workqueue dm_bufio_cache: flags=0x8 [ 715.654957][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 715.654994][ C0] pending: work_fn [ 715.655041][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 715.671906][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 715.671942][ C0] pending: addrconf_verify_work