[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.148' (ECDSA) to the list of known hosts. syzkaller login: [ 561.056405][ C0] hrtimer: interrupt took 60597 ns [ 562.020757][ T8528] IPVS: ftp: loaded support on port[0] = 21 [ 562.022085][ T8533] IPVS: ftp: loaded support on port[0] = 21 [ 562.027732][ T8535] IPVS: ftp: loaded support on port[0] = 21 [ 562.104423][ T8536] IPVS: ftp: loaded support on port[0] = 21 [ 562.108417][ T8537] IPVS: ftp: loaded support on port[0] = 21 [ 562.157555][ T8534] IPVS: ftp: loaded support on port[0] = 21 *** stack smashing detected ***: ./syz-executor008117947 terminated *** stack smashing detected ***: ./syz-executor008117947 terminated [ 565.301715][ T8648] IPVS: ftp: loaded support on port[0] = 21 *** stack smashing detected ***: ./syz-executor008117947 terminated [ 565.918028][ T8651] IPVS: ftp: loaded support on port[0] = 21 [ 566.434066][ T8659] IPVS: ftp: loaded support on port[0] = 21 [ 566.957577][ T8664] IPVS: ftp: loaded support on port[0] = 21 [ 567.308088][ T8668] IPVS: ftp: loaded support on port[0] = 21 *** stack smashing detected ***: ./syz-executor008117947 terminated *** stack smashing detected ***: ./syz-executor008117947 terminated [ 569.410368][ T8762] IPVS: ftp: loaded support on port[0] = 21 *** stack smashing detected ***: ./syz-executor008117947 terminated [ 570.131211][ T8768] IPVS: ftp: loaded support on port[0] = 21 [ 570.255093][ T8772] IPVS: ftp: loaded support on port[0] = 21 *** stack smashing detected ***: ./syz-executor008117947 terminated [ 571.445985][ T8789] IPVS: ftp: loaded support on port[0] = 21 [ 721.420067][ T1635] INFO: task syz-executor008:8537 can't die for more than 143 seconds. [ 721.428551][ T1635] task:syz-executor008 state:R running task stack:25184 pid: 8537 ppid: 8530 flags:0x00004006 [ 721.709623][ T1635] Call Trace: [ 721.712972][ T1635] __schedule+0x8eb/0x21b0 [ 721.717446][ T1635] ? io_schedule_timeout+0x140/0x140 [ 721.979814][ T1635] ? __schedule+0x8eb/0x21b0 [ 721.984526][ T1635] io_schedule_timeout+0x140/0x140 [ 722.139461][ T1635] irqentry_exit+0x7a/0xa0 [ 722.143943][ T1635] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 722.339562][ T1635] RIP: ffffffff:0xffff888021e12490 [ 722.344737][ T1635] RSP: 8b793a20:0000000000000000 EFLAGS: ffff888021e12490 ORIG_RAX: ffffffff89200c02 [ 722.590466][ T1635] RAX: 0000000000000000 RBX: ffffffff8158844f RCX: ffff888021e11b00 [ 722.598510][ T1635] RDX: 19f69e53c6670900 RSI: ffff888021e11b00 RDI: 0000000000000000 [ 722.910082][ T1635] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8f51e7a7 [ 722.918212][ T1635] R10: fffffbfff1ea3cf4 R11: 0000000000000000 R12: 0000000000000002 [ 723.169387][ T1635] R13: 0000000000000000 R14: 0000000000000002 R15: ffffffff8b793a20 [ 723.177443][ T1635] ? lock_release+0x710/0x710 [ 723.389514][ T1635] ? inet_twsk_purge+0x57f/0x810 [ 723.394516][ T1635] ? lock_downgrade+0x6d0/0x6d0 [ 723.629360][ T1635] ? inet_twsk_purge+0x523/0x810 [ 723.634385][ T1635] ? ___might_sleep+0x220/0x2d0 [ 723.639256][ T1635] ? inet_twsk_purge+0x5a1/0x810 [ 723.779656][ T1635] ? inet_twsk_deschedule_put+0x50/0x50 [ 723.785247][ T1635] ? iput+0x58/0x70 [ 723.789069][ T1635] ? dccp_syn_ack_timeout+0x10/0x10 [ 724.039366][ T1635] ? dccp_v4_exit_batch+0x20/0x20 [ 724.044463][ T1635] ? ops_exit_list+0x10d/0x160 [ 724.049248][ T1635] ? setup_net+0x508/0x850 [ 724.219461][ T1635] ? ops_init+0x490/0x490 [ 724.223844][ T1635] ? unpoison_range+0x2c/0x50 [ 724.379360][ T1635] ? copy_net_ns+0x376/0x7b0 [ 724.384023][ T1635] ? create_new_namespaces+0x3f6/0xb20 [ 724.579373][ T1635] ? copy_namespaces+0x3e5/0x4a0 [ 724.584389][ T1635] ? copy_process+0x2aa7/0x6fe0 [ 724.759968][ T1635] ? __cleanup_sighand+0xb0/0xb0 [ 724.764981][ T1635] ? find_held_lock+0x2d/0x110 [ 724.939631][ T1635] ? fd_install+0x250/0x6e0 [ 724.944200][ T1635] ? lock_downgrade+0x6d0/0x6d0 [ 724.949071][ T1635] ? kernel_clone+0x314/0xad0 [ 725.199456][ T1635] ? kernel_clone+0xe7/0xad0 [ 725.204121][ T1635] ? copy_init_mm+0x20/0x20 [ 725.208661][ T1635] ? kvm_sched_clock_read+0x14/0x40 [ 725.439289][ T1635] ? sched_clock+0x2a/0x40 [ 725.443771][ T1635] ? sched_clock_cpu+0x18/0x1f0 [ 725.448724][ T1635] ? kvm_sched_clock_read+0x14/0x40 [ 725.719262][ T1635] ? sched_clock+0x2a/0x40 [ 725.723751][ T1635] ? __do_sys_clone+0xc8/0x110 [ 725.728534][ T1635] ? kernel_clone+0xad0/0xad0 [ 725.981052][ T1635] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 725.987290][ T1635] ? trace_hardirqs_on+0x38/0x1c0 [ 726.189263][ T1635] ? do_syscall_64+0x2d/0x70 [ 726.193916][ T1635] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 726.429670][ T1635] INFO: task syz-executor008:8668 can't die for more than 148 seconds. [ 726.437974][ T1635] task:syz-executor008 state:R running task stack:25272 pid: 8668 ppid: 8529 flags:0x00004006 [ 726.790028][ T1635] Call Trace: [ 726.793362][ T1635] __schedule+0x8eb/0x21b0 [ 726.797811][ T1635] ? io_schedule_timeout+0x140/0x140 [ 727.089141][ T1635] ? preempt_schedule_irq+0x4e/0x90 [ 727.094404][ T1635] ? irqentry_exit+0x7a/0xa0 [ 727.099009][ T1635] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 727.449197][ T1635] preempt_schedule_irq+0x4e/0x90 [ 727.454306][ T1635] ? lock_acquire+0x2c7/0x750 [ 727.459000][ T1635] ? rcu_read_lock_sched_held+0x3a/0x70 [ 727.729187][ T1635] ? print_address_stack_frame+0x110/0x110 [ 727.735078][ T1635] ? lock_release+0xa1/0x710 [ 727.929196][ T1635] ? lock_is_held_type+0xc2/0x100 [ 727.934298][ T1635] ? ___might_sleep+0x220/0x2d0 [ 728.109241][ T1635] ? inet_twsk_purge+0x112/0x810 [ 728.114238][ T1635] ? inet_twsk_purge+0xd0/0x810 [ 728.293441][ T1635] ? inet_twsk_deschedule_put+0x50/0x50 [ 728.399446][ T1635] ? iput+0x58/0x70 [ 728.403327][ T1635] ? dccp_syn_ack_timeout+0x10/0x10 [ 728.408547][ T1635] ? dccp_v4_exit_batch+0x20/0x20 [ 728.699076][ T1635] ? ops_exit_list+0x10d/0x160 [ 728.703905][ T1635] ? setup_net+0x508/0x850 [ 728.708342][ T1635] ? ops_init+0x490/0x490 [ 728.959353][ T1635] ? unpoison_range+0x2c/0x50 [ 728.964113][ T1635] ? copy_net_ns+0x376/0x7b0 [ 728.968728][ T1635] ? create_new_namespaces+0x3f6/0xb20 [ 729.219046][ T1635] ? copy_namespaces+0x3e5/0x4a0 [ 729.224053][ T1635] ? copy_process+0x2aa7/0x6fe0 [ 729.228921][ T1635] ? __lock_acquire+0x16c2/0x54b0 [ 729.369029][ T1635] ? __cleanup_sighand+0xb0/0xb0 [ 729.374040][ T1635] ? find_held_lock+0x2d/0x110 [ 729.378822][ T1635] ? kernel_clone+0x314/0xad0 [ 729.629030][ T1635] ? kernel_clone+0xe7/0xad0 [ 729.633701][ T1635] ? copy_init_mm+0x20/0x20 [ 729.638231][ T1635] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 729.879007][ T1635] ? ktime_get+0x167/0x1e0 [ 729.883499][ T1635] ? lapic_next_event+0x4d/0x80 [ 729.888383][ T1635] ? __do_sys_clone+0xc8/0x110 [ 730.158955][ T1635] ? kernel_clone+0xad0/0xad0 [ 730.163708][ T1635] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 730.338950][ T1635] ? syscall_enter_from_user_mode+0x1d/0x50 [ 730.344938][ T1635] ? do_syscall_64+0x2d/0x70 [ 730.539211][ T1635] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 730.648895][ T1635] INFO: task syz-executor008:8762 can't die for more than 152 seconds. [ 730.657372][ T1635] task:syz-executor008 state:R running task stack:25000 pid: 8762 ppid: 8527 flags:0x00004006 [ 730.989330][ T1635] Call Trace: [ 730.992674][ T1635] __schedule+0x8eb/0x21b0 [ 730.997137][ T1635] ? io_schedule_timeout+0x140/0x140 [ 731.268919][ T1635] ? preempt_schedule_irq+0x4e/0x90 [ 731.274177][ T1635] ? asm_sysvec_apic_timer_interrupt+0x12/0x20