INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.243' (ECDSA) to the list of known hosts. 2019/06/27 05:41:54 parsed 1 programs 2019/06/27 05:41:56 executed programs: 0 [ 979.788469] audit: type=1400 audit(1561614117.214:5): avc: denied { associate } for pid=2227 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 1146.174962] INFO: task syz-executor.0:2466 blocked for more than 140 seconds. [ 1146.182309] Not tainted 4.9.183+ #4 [ 1146.186667] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.194631] syz-executor.0 D28744 2466 2227 0x80000000 [ 1146.200510] 0000000000000083 ffff8801c6e14740 ffff8801c7d22c00 ffff8801db621000 [ 1146.208664] ffff8801c6e117c0 ffff8801db621018 ffff8801c4c0fba0 ffffffff8280a5be [ 1146.216851] 0000000041b58ab3 ffff8801c6e14740 00ff8801c4c0faf0 ffff8801db6218f0 [ 1146.225602] Call Trace: [ 1146.228207] [<000000000552d899>] ? __schedule+0x6ce/0x1f10 [ 1146.233907] [<00000000053cbd5d>] ? io_schedule_timeout+0x390/0x390 [ 1146.240428] [<00000000a8dba439>] ? mark_held_locks+0xb1/0x100 [ 1146.246494] [<000000009f9dc5d4>] ? _raw_spin_unlock_irq+0x28/0x60 [ 1146.252810] [<00000000abd3165f>] ? rwsem_down_read_failed+0x253/0x3e0 [ 1146.259594] [<00000000a317bb49>] schedule+0x92/0x1c0 [ 1146.264869] [<00000000f6debfd7>] rwsem_down_read_failed+0x258/0x3e0 [ 1146.271360] [<00000000761c1518>] ? rt_mutex_futex_unlock+0x10/0x10 [ 1146.277882] [<0000000090d675bc>] call_rwsem_down_read_failed+0x18/0x30 [ 1146.284638] [<00000000b8f92902>] down_read+0x52/0xb0 [ 1146.290035] [<00000000b14244fa>] ? do_exit+0x3b7/0x2aa0 [ 1146.295684] [<00000000b14244fa>] do_exit+0x3b7/0x2aa0 [ 1146.300957] [<00000000065a8e64>] ? trace_hardirqs_off+0xd/0x10 [ 1146.307134] [<000000003bf72add>] ? debug_lockdep_rcu_enabled.part.0+0x30/0x60 [ 1146.314488] [<00000000424ffc9e>] ? release_task+0x14a0/0x14a0 [ 1146.320748] [<00000000c59222b8>] ? native_smp_send_reschedule+0x6a/0xa0 [ 1146.327770] [<000000009f9dc5d4>] ? _raw_spin_unlock_irq+0x28/0x60 [ 1146.334085] [<000000008679c75a>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1146.341031] [<000000003023b5cd>] do_group_exit+0x111/0x300 [ 1146.346821] [<00000000b837e78c>] SyS_exit_group+0x1d/0x20 [ 1146.352440] [<0000000088a3653d>] ? do_group_exit+0x300/0x300 [ 1146.358994] [<00000000186de64e>] do_syscall_64+0x1ad/0x5c0 [ 1146.364709] [<000000002ad89e81>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 1146.371731] [ 1146.371731] Showing all locks held in the system: [ 1146.378160] 2 locks held by khungtaskd/24: [ 1146.382383] #0: (rcu_read_lock){......}, at: [<00000000f03f97f2>] watchdog+0x14b/0xaf0 [ 1146.391172] #1: (tasklist_lock){.+.+..}, at: [<00000000823a20fb>] debug_show_all_locks+0x7f/0x21f [ 1146.400991] 2 locks held by getty/2023: [ 1146.404965] #0: (&tty->ldisc_sem){++++++}, at: [<0000000031750ffb>] ldsem_down_read+0x33/0x40 [ 1146.415657] #1: (&ldata->atomic_read_lock){+.+...}, at: [<00000000df1688fb>] n_tty_read+0x1fe/0x1820 [ 1146.425676] 1 lock held by syz-executor.0/2466: [ 1146.430331] #0: (&mm->mmap_sem){++++++}, at: [<00000000b14244fa>] do_exit+0x3b7/0x2aa0 [ 1146.439101] 1 lock held by syz-executor.0/2468: [ 1146.443754] #0: (&mm->mmap_sem){++++++}, at: [<00000000b14244fa>] do_exit+0x3b7/0x2aa0 [ 1146.452513] [ 1146.454127] ============================================= [ 1146.454127] [ 1146.461434] NMI backtrace for cpu 0 [ 1146.465100] CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.183+ #4 [ 1146.471579] ffff8801d98efcc8 ffffffff81b580a1 0000000000000000 0000000000000000 [ 1146.479645] 0000000000000000 ffffffff81099a01 dffffc0000000000 ffff8801d98efd00 [ 1146.487726] ffffffff81b6333c 0000000000000000 0000000000000000 0000000000000000 [ 1146.495783] Call Trace: [ 1146.498364] [<00000000e6b27b9a>] dump_stack+0xc1/0x120 [ 1146.503720] [<00000000d7b179be>] ? irq_force_complete_move+0x2e1/0x300 [ 1146.510463] [<00000000e324ab66>] nmi_cpu_backtrace.cold+0x47/0x87 [ 1146.516781] [<0000000096358c59>] ? irq_force_complete_move+0x300/0x300 [ 1146.523524] [<000000000bead664>] nmi_trigger_cpumask_backtrace+0x124/0x155 [ 1146.530619] [<000000001ec887e1>] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1146.537625] [<000000004a49b0a5>] watchdog+0x670/0xaf0 [ 1146.542914] [<00000000f03f97f2>] ? watchdog+0x14b/0xaf0 [ 1146.548359] [<000000008679c75a>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1146.555198] [<00000000b7db6e16>] ? hungtask_pm_notify+0x60/0x60 [ 1146.561335] [<00000000f71833ed>] kthread+0x278/0x310 [ 1146.566517] [<000000002cf6d84f>] ? kthread_park+0xa0/0xa0 [ 1146.572133] [<000000002235aa7e>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1146.578974] [<00000000abf122bc>] ? _raw_spin_unlock_irq+0x39/0x60 [ 1146.585286] [<00000000aa17b56f>] ? finish_task_switch+0x1e5/0x660 [ 1146.591603] [<00000000bd567392>] ? finish_task_switch+0x1b7/0x660 [ 1146.598000] [<00000000ffd24311>] ? __switch_to_asm+0x41/0x70 [ 1146.603876] [<000000004ead03a8>] ? __switch_to_asm+0x35/0x70 [ 1146.609760] [<00000000ffd24311>] ? __switch_to_asm+0x41/0x70 [ 1146.615639] [<000000002cf6d84f>] ? kthread_park+0xa0/0xa0 [ 1146.621262] [<000000002cf6d84f>] ? kthread_park+0xa0/0xa0 [ 1146.626878] [<00000000361be5c0>] ret_from_fork+0x5c/0x70 [ 1146.632504] Sending NMI from CPU 0 to CPUs 1: [ 1146.637264] NMI backtrace for cpu 1 [ 1146.640980] CPU: 1 PID: 2467 Comm: syz-executor.0 Not tainted 4.9.183+ #4 [ 1146.647951] task: 00000000591f92b5 task.stack: 000000004018f7b3 [ 1146.653985] RIP: 0010:[] c [<00000000f2af3703>] __mutex_unlock_slowpath+0x4b/0x3e0 [ 1146.663317] RSP: 0018:ffff8801c4c27b80 EFLAGS: 00000282 [ 1146.668745] RAX: dffffc0000000000 RBX: ffffffff841f5ac0 RCX: dffffc0000000000 [ 1146.676017] RDX: ffffed0038984f72 RSI: ffffffff813e0178 RDI: ffff8801c6f03e60 [ 1146.683284] RBP: ffff8801c4c27c18 R08: 0000000000000000 R09: ffff8801c6e13878 [ 1146.690540] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c6f03e60 [ 1146.697813] R13: ffff8801c4c27bb0 R14: 1ffff10038984f72 R15: ffff8801c6f03e60 [ 1146.705072] FS: 00007f4801837700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 1146.713465] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1146.719589] CR2: 00007f64f4a70000 CR3: 00000001c72d7000 CR4: 00000000001606b0 [ 1146.726839] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1146.734107] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1146.741355] Stack: [ 1146.743506] 0000000041b58ab3c ffffffff82e33f79c 0000000041b58ab3c ffffffff82e33f8fc [ 1146.751727] ffffffff82813460c ffff8801c6e13850c 0000000000000001c ffff8801c4c27bb0c [ 1146.759946] 1ffff10038dc270ac 0000000000000000c 0000000000000000c ffff8801c6f03e60c [ 1146.768151] Call Trace: [ 1146.770714] [<00000000326fce9d>] ? __ww_mutex_lock_interruptible+0x1530/0x1530 [ 1146.778221] [<000000008a2c84a8>] mutex_unlock+0x9/0x10 [ 1146.783577] [<00000000206fee92>] perf_mmap+0x620/0x1580 [ 1146.789110] [<000000004f4ab058>] mmap_region+0x7e7/0xfa0 [ 1146.794622] [<000000002f2876a8>] do_mmap+0x539/0xbc0 [ 1146.799791] [<0000000002e75b8d>] vm_mmap_pgoff+0x179/0x1c0 [ 1146.805485] [<00000000719afb0b>] ? vma_is_stack_for_current+0xa0/0xa0 [ 1146.812133] [<000000000d296fc9>] ? __fget+0x22f/0x370 [ 1146.817385] [<000000006bbcafaf>] SyS_mmap_pgoff+0xfa/0x1b0 [ 1146.823079] [<0000000090dd9d25>] ? align_vdso_addr+0x60/0x60 [ 1146.828942] [<0000000015767b03>] SyS_mmap+0x16/0x20 [ 1146.834022] [<00000000186de64e>] do_syscall_64+0x1ad/0x5c0 [ 1146.839803] [<000000002ad89e81>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 1146.846896] Code: c8d c14 c06 c41 c54 c49 c89 cfc c53 c4c c8d c6d c98 c48 cc7 cc3 cc0 c5a c1f c84 c48 c83 cec c70 c48 cc7 c45 c80 c8f c3f ce3 c82 c48 cc7 c85 c78 cff cff cff cb3 c8a cb5 c41 c<48> cc7 c45 c88 c60 c34 c81 c82 cc7 c02 cf1 cf1 cf1 cf1 cc7 c42 c04 c00 c00 cf3 cf3 c [ 1146.877804] Kernel panic - not syncing: hung_task: blocked tasks [ 1146.883966] CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.183+ #4 [ 1146.890372] ffff8801d98efc60 ffffffff81b580a1 ffff8801c6e14700 ffffffff82a7abc0 [ 1146.898454] 00000000ffffffff 0000000000000000 dffffc0000000000 ffff8801d98efd40 [ 1146.906525] ffffffff813fd67a 0000000041b58ab3 ffffffff82e313da ffffffff813fd4a1 [ 1146.914576] Call Trace: [ 1146.917243] [<00000000e6b27b9a>] dump_stack+0xc1/0x120 [ 1146.922598] [<000000000972aca1>] panic+0x1d9/0x3bd [ 1146.927689] [<00000000a791eb09>] ? add_taint.cold+0x16/0x16 [ 1146.933498] [<0000000096358c59>] ? irq_force_complete_move+0x300/0x300 [ 1146.940247] [<000000002935fe0e>] ? ___preempt_schedule+0x16/0x18 [ 1146.946473] [<0000000006cd624d>] ? nmi_trigger_cpumask_backtrace+0x135/0x155 [ 1146.968322] [<000000001e5b7c75>] ? nmi_trigger_cpumask_backtrace+0x13f/0x155 [ 1146.975592] [<0000000044656ce4>] watchdog+0x681/0xaf0 [ 1146.980884] [<00000000f03f97f2>] ? watchdog+0x14b/0xaf0 [ 1146.986325] [<000000008679c75a>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1146.993163] [<00000000b7db6e16>] ? hungtask_pm_notify+0x60/0x60 [ 1146.999300] [<00000000f71833ed>] kthread+0x278/0x310 [ 1147.004480] [<000000002cf6d84f>] ? kthread_park+0xa0/0xa0 [ 1147.010095] [<000000002235aa7e>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1147.016841] [<00000000abf122bc>] ? _raw_spin_unlock_irq+0x39/0x60 [ 1147.023738] [<00000000aa17b56f>] ? finish_task_switch+0x1e5/0x660 [ 1147.030051] [<00000000bd567392>] ? finish_task_switch+0x1b7/0x660 [ 1147.036362] [<00000000ffd24311>] ? __switch_to_asm+0x41/0x70 [ 1147.042240] [<000000004ead03a8>] ? __switch_to_asm+0x35/0x70 [ 1147.048201] [<00000000ffd24311>] ? __switch_to_asm+0x41/0x70 [ 1147.054079] [<000000002cf6d84f>] ? kthread_park+0xa0/0xa0 [ 1147.059695] [<000000002cf6d84f>] ? kthread_park+0xa0/0xa0 [ 1147.065308] [<00000000361be5c0>] ret_from_fork+0x5c/0x70 [ 1147.071464] Kernel Offset: disabled [ 1147.075108] Rebooting in 86400 seconds..