Warning: Permanently added '10.128.1.97' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 457.488418][ T26] audit: type=1400 audit(1639848037.881:75): avc: denied { execmem } for pid=3642 comm="syz-executor549" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 457.517663][ T26] audit: type=1400 audit(1639848037.901:76): avc: denied { open } for pid=3645 comm="syz-executor549" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=perf_event permissive=1 [ 457.537674][ T26] audit: type=1400 audit(1639848037.901:77): avc: denied { perfmon } for pid=3645 comm="syz-executor549" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 457.538637][ C0] hrtimer: interrupt took 34924 ns executing program [ 486.760261][ T26] audit: type=1400 audit(1639848037.901:78): avc: denied { perfmon } for pid=3650 comm="syz-executor549" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 486.816269][ T26] audit: type=1400 audit(1639848037.901:79): avc: denied { kernel } for pid=3645 comm="syz-executor549" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=perf_event permissive=1 [ 486.836488][ T26] audit: type=1400 audit(1639848037.901:80): avc: denied { kernel } for pid=3650 comm="syz-executor549" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=perf_event permissive=1 [ 486.858605][ T26] audit: type=1804 audit(1639848038.081:81): pid=3645 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=open_writers comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 487.099145][ T26] audit: type=1804 audit(1639848038.091:82): pid=3650 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=open_writers comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 executing program executing program executing program [ 529.725444][ T26] audit: type=1804 audit(1639848049.021:83): pid=3653 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=ToMToU comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 529.747660][ T26] audit: type=1804 audit(1639848051.211:84): pid=3653 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=ToMToU comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 executing program executing program executing program [ 529.769626][ T26] audit: type=1804 audit(1639848051.321:85): pid=3653 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=open_writers comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 529.792001][ T26] audit: type=1804 audit(1639848052.851:86): pid=3651 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=ToMToU comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 executing program [ 533.670593][ T26] audit: type=1804 audit(1639848053.591:87): pid=3651 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=ToMToU comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 533.693958][ T26] audit: type=1804 audit(1639848053.731:88): pid=3651 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=open_writers comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 534.983246][ T26] audit: type=1804 audit(1639848060.901:89): pid=3652 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=ToMToU comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 535.192710][ T26] audit: type=1804 audit(1639848064.071:90): pid=3652 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=ToMToU comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 [ 535.256003][ T26] audit: type=1804 audit(1639848064.241:91): pid=3652 uid=0 auid=4294967295 ses=4294967295 subj=root:sysadm_r:sysadm_t op=invalid_pcr cause=open_writers comm="syz-executor549" name="/root/bus" dev="sda1" ino=1137 res=1 errno=0 executing program [ 635.787019][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 635.794050][ C0] (detected by 0, t=10502 jiffies, g=5509, q=170) [ 635.800557][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 8642 (4295000735-4294992093), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 635.813845][ C0] rcu: rcu_preempt kthread starved for 8643 jiffies! g5509 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 635.824886][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 635.834866][ C0] rcu: RCU grace-period kthread stack dump: [ 635.840750][ C0] task:rcu_preempt state:R running task stack:28208 pid: 14 ppid: 2 flags:0x00004000 [ 635.851541][ C0] Call Trace: [ 635.854824][ C0] [ 635.857758][ C0] __schedule+0xa9a/0x4940 [ 635.862264][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 635.867487][ C0] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 635.873350][ C0] ? io_schedule_timeout+0x180/0x180 [ 635.878649][ C0] ? debug_object_destroy+0x210/0x210 [ 635.884081][ C0] schedule+0xd2/0x260 [ 635.888155][ C0] schedule_timeout+0x14a/0x2a0 [ 635.893024][ C0] ? usleep_range_state+0x1b0/0x1b0 [ 635.898238][ C0] ? destroy_timer_on_stack+0x20/0x20 [ 635.903699][ C0] ? dump_vmcb.cold+0x6ec/0x2d46 [ 635.908689][ C0] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 635.914513][ C0] ? prepare_to_swait_event+0xee/0x470 [ 635.920029][ C0] rcu_gp_fqs_loop+0x186/0x810 [ 635.924842][ C0] ? force_qs_rnp+0x760/0x760 [ 635.929534][ C0] ? rcu_gp_init+0x906/0x12a0 [ 635.934226][ C0] rcu_gp_kthread+0x1de/0x320 [ 635.938917][ C0] ? rcu_gp_init+0x12a0/0x12a0 [ 635.943691][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 635.949999][ C0] ? __kthread_parkme+0x15f/0x220 [ 635.955073][ C0] ? rcu_gp_init+0x12a0/0x12a0 [ 635.959853][ C0] kthread+0x405/0x4f0 [ 635.963974][ C0] ? set_kthread_struct+0x130/0x130 [ 635.969195][ C0] ret_from_fork+0x1f/0x30 [ 635.973673][ C0] [ 635.976694][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 635.983012][ C0] NMI backtrace for cpu 0 [ 635.987335][ C0] CPU: 0 PID: 3672 Comm: syz-executor549 Not tainted 5.16.0-rc5-syzkaller #0 [ 635.996102][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 636.006164][ C0] Call Trace: [ 636.009449][ C0] [ 636.012299][ C0] dump_stack_lvl+0xcd/0x134 [ 636.016972][ C0] nmi_cpu_backtrace.cold+0x47/0x144 [ 636.022273][ C0] ? lapic_can_unplug_cpu+0x80/0x80 [ 636.027523][ C0] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 636.033561][ C0] rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 [ 636.040236][ C0] rcu_sched_clock_irq+0x2125/0x2200 [ 636.045538][ C0] ? rcutree_dead_cpu+0x30/0x30 [ 636.050401][ C0] ? tick_sched_timer+0x2b/0x2d0 [ 636.055407][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 636.060304][ C0] update_process_times+0x16d/0x200 [ 636.065511][ C0] tick_sched_handle+0x9b/0x180 [ 636.070377][ C0] tick_sched_timer+0x1b0/0x2d0 [ 636.075239][ C0] ? get_cpu_iowait_time_us+0x3f0/0x3f0 [ 636.080800][ C0] __hrtimer_run_queues+0x1c0/0xe50 [ 636.086010][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 636.092005][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 636.098086][ C0] hrtimer_interrupt+0x31c/0x790 [ 636.103036][ C0] __sysvec_apic_timer_interrupt+0x146/0x530 [ 636.109060][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 636.114711][ C0] [ 636.117642][ C0] [ 636.120572][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 636.126568][ C0] RIP: 0010:rwsem_spin_on_owner+0x1aa/0x290 [ 636.132476][ C0] Code: a8 08 75 33 49 8d 7c 24 34 48 89 f8 48 c1 e8 03 42 0f b6 14 28 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 b0 00 00 00 <41> 8b 44 24 34 85 c0 0f 85 14 ff ff ff b8 08 00 00 00 48 83 c4 08 [ 636.152093][ C0] RSP: 0018:ffffc90002817448 EFLAGS: 00000246 [ 636.158177][ C0] RAX: 0000000000000007 RBX: ffff88806da34680 RCX: ffffffff815a9743 [ 636.166154][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807d2000b4 [ 636.174138][ C0] RBP: ffff88806da34688 R08: 0000000000000000 R09: ffff888078b322c7 [ 636.182127][ C0] R10: ffffed100f166458 R11: 0000000000000001 R12: ffff88807d200080 [ 636.190111][ C0] R13: dffffc0000000000 R14: ffff888078b322c0 R15: ffffed100f166458 [ 636.198096][ C0] ? rwsem_spin_on_owner+0x173/0x290 [ 636.203404][ C0] ? rwsem_spin_on_owner+0x173/0x290 [ 636.208702][ C0] rwsem_down_write_slowpath+0x1a8/0x1110 [ 636.214432][ C0] ? rwsem_mark_wake+0x960/0x960 [ 636.219382][ C0] ? lock_release+0x720/0x720 [ 636.224071][ C0] down_write+0x135/0x150 [ 636.228410][ C0] ? down_write_killable_nested+0x180/0x180 [ 636.234313][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 636.240569][ C0] ? ext4_fc_start_update+0xa2/0x2e0 [ 636.245952][ C0] ext4_buffered_write_iter+0xb6/0x3b0 [ 636.251453][ C0] ext4_file_write_iter+0x423/0x14e0 [ 636.256749][ C0] ? ext4_buffered_write_iter+0x3b0/0x3b0 [ 636.262482][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 636.267694][ C0] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 636.273865][ C0] do_iter_readv_writev+0x472/0x750 [ 636.279132][ C0] ? new_sync_write+0x660/0x660 [ 636.283998][ C0] ? avc_policy_seqno+0x9/0x70 [ 636.288818][ C0] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 636.294556][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 636.300820][ C0] ? security_file_permission+0xab/0xd0 [ 636.306416][ C0] do_iter_write+0x188/0x710 [ 636.311021][ C0] ? iter_file_splice_write+0x508/0xc10 [ 636.316637][ C0] vfs_iter_write+0x70/0xa0 [ 636.321159][ C0] iter_file_splice_write+0x6fa/0xc10 [ 636.326548][ C0] ? generic_file_splice_read+0x488/0x6d0 [ 636.332284][ C0] ? splice_from_pipe_next.part.0+0x520/0x520 [ 636.338365][ C0] ? folio_flags.constprop.0+0x70/0x70 [ 636.343837][ C0] ? security_file_permission+0xab/0xd0 [ 636.349394][ C0] ? splice_from_pipe_next.part.0+0x520/0x520 [ 636.355474][ C0] direct_splice_actor+0x110/0x180 [ 636.360595][ C0] splice_direct_to_actor+0x34b/0x8c0 [ 636.365977][ C0] ? generic_file_splice_read+0x6d0/0x6d0 [ 636.371710][ C0] ? do_splice_to+0x250/0x250 [ 636.376396][ C0] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 636.382646][ C0] ? security_file_permission+0xab/0xd0 [ 636.388313][ C0] do_splice_direct+0x1b3/0x280 [ 636.393184][ C0] ? splice_direct_to_actor+0x8c0/0x8c0 [ 636.398750][ C0] ? do_sendfile+0xd8e/0x1250 [ 636.403445][ C0] ? do_sendfile+0xd9f/0x1250 [ 636.408133][ C0] do_sendfile+0xaf2/0x1250 [ 636.412647][ C0] ? do_pwritev+0x270/0x270 [ 636.417172][ C0] ? irqentry_enter+0x28/0x50 [ 636.421861][ C0] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 636.428032][ C0] __x64_sys_sendfile64+0x1cc/0x210 [ 636.433247][ C0] ? __ia32_sys_sendfile+0x220/0x220 [ 636.438559][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 636.443676][ C0] do_syscall_64+0x35/0xb0 [ 636.448104][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 636.454012][ C0] RIP: 0033:0x7f34d1e3f169 [ 636.458446][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 636.478070][ C0] RSP: 002b:00007ffc49095728 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 636.486497][ C0] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f34d1e3f169 [ 636.494475][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004 [ 636.502448][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 636.510429][ C0] R10: 00008400fffffffb R11: 0000000000000246 R12: 0000000000076d4d [ 636.518542][ C0] R13: 00007ffc4909573c R14: 00007ffc49095750 R15: 00007ffc49095740 [ 636.526538][ C0]