Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts. [ 45.208363] random: sshd: uninitialized urandom read (32 bytes read) [ 45.338201] audit: type=1400 audit(1563606392.882:36): avc: denied { map } for pid=6969 comm="syz-executor366" path="/root/syz-executor366756543" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 46.100198] IPVS: ftp: loaded support on port[0] = 21 executing program [ 46.516610] ------------[ cut here ]------------ [ 46.522174] WARNING: CPU: 0 PID: 6973 at kernel/sched/deadline.c:593 enqueue_task_dl+0x1c17/0x2ba0 [ 46.531260] Kernel panic - not syncing: panic_on_warn set ... [ 46.531260] [ 46.538612] CPU: 0 PID: 6973 Comm: syz-executor366 Not tainted 4.14.133 #28 [ 46.545846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.555411] Call Trace: [ 46.557993] dump_stack+0x138/0x19c [ 46.561606] panic+0x1f2/0x426 [ 46.564781] ? add_taint.cold+0x16/0x16 [ 46.568743] ? enqueue_task_dl+0x1c17/0x2ba0 [ 46.573132] ? enqueue_task_dl+0x1c17/0x2ba0 [ 46.577729] __warn.cold+0x2f/0x36 [ 46.581361] ? ist_end_non_atomic+0x10/0x10 [ 46.585668] ? enqueue_task_dl+0x1c17/0x2ba0 [ 46.590083] report_bug+0x216/0x254 [ 46.593728] do_error_trap+0x1bb/0x310 [ 46.597614] ? math_error+0x360/0x360 [ 46.601799] ? save_trace+0x290/0x290 [ 46.605646] ? cpuacct_charge+0x1db/0x360 [ 46.609788] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.614617] do_invalid_op+0x1b/0x20 [ 46.618461] invalid_op+0x1b/0x40 [ 46.621974] RIP: 0010:enqueue_task_dl+0x1c17/0x2ba0 [ 46.626972] RSP: 0018:ffff888098a3fcd8 EFLAGS: 00010002 [ 46.632457] RAX: 0000000000000000 RBX: ffffffff87ab2780 RCX: 1ffff1101041413a [ 46.639723] RDX: 0000000ad48fb497 RSI: ffff8880aee2c518 RDI: ffff8880820a09d0 [ 46.646977] RBP: ffff888098a3fd48 R08: ffff8880820a09cc R09: ffff8880820a09c0 [ 46.654229] R10: ffff8880820a073c R11: 0000000000000001 R12: ffff8880820a0700 [ 46.661650] R13: ffff8880aee2c500 R14: ffff8880820a0978 R15: ffff8880aee2c500 [ 46.668927] ? enqueue_task_dl+0x15cc/0x2ba0 [ 46.673338] __sched_setscheduler+0xd17/0x2510 [ 46.677907] ? set_user_nice+0x80/0x80 [ 46.681782] ? debug_smp_processor_id+0x1c/0x20 [ 46.686442] SyS_sched_setattr+0x1f8/0x300 [ 46.690678] ? SyS_sched_setparam+0x20/0x20 [ 46.695101] ? _raw_spin_unlock_irq+0x28/0x90 [ 46.699705] ? SyS_sched_setparam+0x20/0x20 [ 46.704063] do_syscall_64+0x1e8/0x640 [ 46.707936] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.712834] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.718093] RIP: 0033:0x446749 [ 46.721268] RSP: 002b:00007ff022092db8 EFLAGS: 00000246 ORIG_RAX: 000000000000013a [ 46.729068] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446749 [ 46.736320] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000 [ 46.743583] RBP: 00000000006dbc30 R08: 00007ff022093700 R09: 0000000000000000 [ 46.750992] R10: 00007ff022093700 R11: 0000000000000246 R12: 00000000006dbc3c [ 46.758249] R13: 00007ffdbf86bf7f R14: 00007ff0220939c0 R15: 0000000000000000 [ 46.765597] [ 46.765599] ====================================================== [ 46.765601] WARNING: possible circular locking dependency detected [ 46.765602] 4.14.133 #28 Not tainted [ 46.765604] ------------------------------------------------------ [ 46.765606] syz-executor366/6973 is trying to acquire lock: [ 46.765607] ((console_sem).lock){-...}, at: [] down_trylock+0x13/0x70 [ 46.765611] [ 46.765612] but task is already holding lock: [ 46.765613] (&rq->lock){-.-.}, at: [] task_rq_lock+0xc8/0x2b0 [ 46.765617] [ 46.765618] which lock already depends on the new lock. [ 46.765619] [ 46.765620] [ 46.765621] the existing dependency chain (in reverse order) is: [ 46.765622] [ 46.765623] -> #2 (&rq->lock){-.-.}: [ 46.765627] lock_acquire+0x16f/0x430 [ 46.765628] _raw_spin_lock+0x2f/0x40 [ 46.765629] task_fork_fair+0x63/0x5b0 [ 46.765631] sched_fork+0x3a6/0xc10 [ 46.765632] copy_process.part.0+0x15b7/0x6a00 [ 46.765633] _do_fork+0x19e/0xce0 [ 46.765634] kernel_thread+0x34/0x40 [ 46.765635] rest_init+0x24/0xf6 [ 46.765636] start_kernel+0x6df/0x6fd [ 46.765638] x86_64_start_reservations+0x29/0x2b [ 46.765639] x86_64_start_kernel+0x77/0x7b [ 46.765640] secondary_startup_64+0xa5/0xb0 [ 46.765641] [ 46.765642] -> #1 (&p->pi_lock){-.-.}: [ 46.765646] lock_acquire+0x16f/0x430 [ 46.765647] _raw_spin_lock_irqsave+0x95/0xcd [ 46.765648] try_to_wake_up+0x79/0xf90 [ 46.765649] wake_up_process+0x10/0x20 [ 46.765651] __up.isra.0+0x136/0x1a0 [ 46.765652] up+0x9c/0xe0 [ 46.765653] __up_console_sem+0xad/0x1b0 [ 46.765654] console_unlock+0x59d/0xed0 [ 46.765655] vprintk_emit+0x1f9/0x600 [ 46.765657] vprintk_default+0x28/0x30 [ 46.765658] vprintk_func+0x5d/0x159 [ 46.765659] printk+0x9e/0xbc [ 46.765660] kauditd_hold_skb.cold+0x3e/0x4d [ 46.765661] kauditd_send_queue+0xfc/0x140 [ 46.765663] kauditd_thread+0x644/0x860 [ 46.765664] kthread+0x319/0x430 [ 46.765665] ret_from_fork+0x24/0x30 [ 46.765666] [ 46.765666] -> #0 ((console_sem).lock){-...}: [ 46.765671] __lock_acquire+0x2c89/0x45e0 [ 46.765672] lock_acquire+0x16f/0x430 [ 46.765673] _raw_spin_lock_irqsave+0x95/0xcd [ 46.765674] down_trylock+0x13/0x70 [ 46.765676] __down_trylock_console_sem+0x9c/0x200 [ 46.765677] console_trylock+0x17/0x80 [ 46.765678] vprintk_emit+0x1eb/0x600 [ 46.765679] vprintk_default+0x28/0x30 [ 46.765680] vprintk_func+0x5d/0x159 [ 46.765681] printk+0x9e/0xbc [ 46.765682] __warn+0x39/0x1b0 [ 46.765684] report_bug+0x216/0x254 [ 46.765685] do_error_trap+0x1bb/0x310 [ 46.765686] do_invalid_op+0x1b/0x20 [ 46.765687] invalid_op+0x1b/0x40 [ 46.765688] enqueue_task_dl+0x1c17/0x2ba0 [ 46.765690] __sched_setscheduler+0xd17/0x2510 [ 46.765691] SyS_sched_setattr+0x1f8/0x300 [ 46.765692] do_syscall_64+0x1e8/0x640 [ 46.765693] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.765694] [ 46.765695] other info that might help us debug this: [ 46.765696] [ 46.765697] Chain exists of: [ 46.765698] (console_sem).lock --> &p->pi_lock --> &rq->lock [ 46.765703] [ 46.765704] Possible unsafe locking scenario: [ 46.765705] [ 46.765706] CPU0 CPU1 [ 46.765708] ---- ---- [ 46.765708] lock(&rq->lock); [ 46.765711] lock(&p->pi_lock); [ 46.765714] lock(&rq->lock); [ 46.765716] lock((console_sem).lock); [ 46.765718] [ 46.765719] *** DEADLOCK *** [ 46.765720] [ 46.765721] 3 locks held by syz-executor366/6973: [ 46.765722] #0: (rcu_read_lock){....}, at: [] rcu_read_lock+0x0/0x70 [ 46.765726] #1: (&p->pi_lock){-.-.}, at: [] task_rq_lock+0x6a/0x2b0 [ 46.765731] #2: (&rq->lock){-.-.}, at: [] task_rq_lock+0xc8/0x2b0 [ 46.765735] [ 46.765736] stack backtrace: [ 46.765738] CPU: 0 PID: 6973 Comm: syz-executor366 Not tainted 4.14.133 #28 [ 46.765740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.765741] Call Trace: [ 46.765742] dump_stack+0x138/0x19c [ 46.765743] print_circular_bug.isra.0.cold+0x1cc/0x28f [ 46.765744] __lock_acquire+0x2c89/0x45e0 [ 46.765746] ? add_lock_to_list.isra.0+0x17c/0x330 [ 46.765747] ? trace_hardirqs_on+0x10/0x10 [ 46.765748] ? save_trace+0x290/0x290 [ 46.765749] ? kvm_clock_read+0x23/0x40 [ 46.765750] ? kvm_sched_clock_read+0x9/0x20 [ 46.765752] lock_acquire+0x16f/0x430 [ 46.765753] ? down_trylock+0x13/0x70 [ 46.765754] ? vprintk_emit+0x109/0x600 [ 46.765755] _raw_spin_lock_irqsave+0x95/0xcd [ 46.765756] ? down_trylock+0x13/0x70 [ 46.765757] ? vprintk_emit+0x1eb/0x600 [ 46.765758] down_trylock+0x13/0x70 [ 46.765760] ? vprintk_emit+0x1eb/0x600 [ 46.765761] __down_trylock_console_sem+0x9c/0x200 [ 46.765762] console_trylock+0x17/0x80 [ 46.765763] vprintk_emit+0x1eb/0x600 [ 46.765764] ? enqueue_task_dl+0x1c17/0x2ba0 [ 46.765766] vprintk_default+0x28/0x30 [ 46.765767] vprintk_func+0x5d/0x159 [ 46.765768] ? check_stack_object+0x114/0x160 [ 46.765769] printk+0x9e/0xbc [ 46.765770] ? show_regs_print_info+0x63/0x63 [ 46.765771] ? avc_has_perm_noaudit+0x28b/0x420 [ 46.765773] ? enqueue_task_dl+0x1c17/0x2ba0 [ 46.765774] ? __probe_kernel_read+0x168/0x1c0 [ 46.765775] __warn+0x39/0x1b0 [ 46.765776] ? ist_end_non_atomic+0x10/0x10 [ 46.765778] ? enqueue_task_dl+0x1c17/0x2ba0 [ 46.765779] report_bug+0x216/0x254 [ 46.765780] do_error_trap+0x1bb/0x310 [ 46.765781] ? math_error+0x360/0x360 [ 46.765782] ? save_trace+0x290/0x290 [ 46.765784] ? cpuacct_charge+0x1db/0x360 [ 46.765785] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.765786] do_invalid_op+0x1b/0x20 [ 46.765787] invalid_op+0x1b/0x40 [ 46.765789] RIP: 0010:enqueue_task_dl+0x1c17/0x2ba0 [ 46.765790] RSP: 0018:ffff888098a3fcd8 EFLAGS: 00010002 [ 46.765792] RAX: 0000000000000000 RBX: ffffffff87ab2780 RCX: 1ffff1101041413a [ 46.765794] RDX: 0000000ad48fb497 RSI: ffff8880aee2c518 RDI: ffff8880820a09d0 [ 46.765796] RBP: ffff888098a3fd48 R08: ffff8880820a09cc R09: ffff8880820a09c0 [ 46.765798] R10: ffff8880820a073c R11: 0000000000000001 R12: ffff8880820a0700 [ 46.765799] R13: ffff8880aee2c500 R14: ffff8880820a0978 R15: ffff8880aee2c500 [ 46.765800] ? enqueue_task_dl+0x15cc/0x2ba0 [ 46.765802] __sched_setscheduler+0xd17/0x2510 [ 46.765803] ? set_user_nice+0x80/0x80 [ 46.765804] ? debug_smp_processor_id+0x1c/0x20 [ 46.765805] SyS_sched_setattr+0x1f8/0x300 [ 46.765806] ? SyS_sched_setparam+0x20/0x20 [ 46.765808] ? _raw_spin_unlock_irq+0x28/0x90 [ 46.765809] ? SyS_sched_setparam+0x20/0x20 [ 46.765810] do_syscall_64+0x1e8/0x640 [ 46.765811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.765813] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.765814] RIP: 0033:0x446749 [ 46.765815] RSP: 002b:00007ff022092db8 EFLAGS: 00000246 ORIG_RAX: 000000000000013a [ 46.765818] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446749 [ 46.765820] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000 [ 46.765821] RBP: 00000000006dbc30 R08: 00007ff022093700 R09: 0000000000000000 [ 46.765823] R10: 00007ff022093700 R11: 0000000000000246 R12: 00000000006dbc3c [ 46.765825] R13: 00007ffdbf86bf7f R14: 00007ff0220939c0 R15: 0000000000000000 [ 46.766881] Kernel Offset: disabled [ 47.493754] Rebooting in 86400 seconds..