Warning: Permanently added '10.128.0.161' (ECDSA) to the list of known hosts. [ 37.493104] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.580626] audit: type=1400 audit(1572601072.933:7): avc: denied { map } for pid=1785 comm="syz-executor700" path="/root/syz-executor700918250" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.860903] ================================================================== [ 37.868398] BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x169f/0x1810 [ 37.875752] Read of size 8 at addr ffff8881cfe07860 by task syz-executor700/1854 [ 37.883278] [ 37.884902] CPU: 1 PID: 1854 Comm: syz-executor700 Not tainted 4.14.151+ #0 [ 37.891992] Call Trace: [ 37.894581] dump_stack+0xca/0x134 [ 37.898125] ? unwind_next_frame+0x169f/0x1810 [ 37.902704] ? unwind_next_frame+0x169f/0x1810 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.907278] print_address_description+0x60/0x226 [ 37.912114] ? unwind_next_frame+0x169f/0x1810 [ 37.916687] ? unwind_next_frame+0x169f/0x1810 [ 37.921264] __kasan_report.cold+0x1a/0x41 [ 37.925494] ? unwind_next_frame+0x169f/0x1810 [ 37.930071] unwind_next_frame+0x169f/0x1810 [ 37.934994] ? retint_kernel+0x2d/0x2d [ 37.938873] ? deref_stack_reg+0xe0/0xe0 [ 37.942931] ? perf_output_copy+0x1d0/0x1d0 [ 37.947249] ? retint_kernel+0x2d/0x2d [ 37.951140] perf_callchain_kernel+0x3a0/0x540 [ 37.955718] ? arch_perf_update_userpage+0x330/0x330 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.960817] ? futex_wait_setup+0x132/0x330 [ 37.965131] ? put_callchain_buffers+0x60/0x60 [ 37.969711] get_perf_callchain+0x2f5/0x770 [ 37.974031] ? perf_callchain+0x150/0x190 [ 37.978170] ? put_callchain_buffers+0x60/0x60 [ 37.982747] ? __task_pid_nr_ns+0x1ea/0x450 [ 37.987073] perf_callchain+0x147/0x190 [ 37.991041] perf_prepare_sample+0x6a8/0x1360 [ 37.996051] ? perf_prepare_sample+0x1360/0x1360 [ 38.000800] ? perf_output_sample+0x1700/0x1700 [ 38.005463] ? perf_swevent_put_recursion_context+0x1a/0xa0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.011175] perf_event_output_forward+0xdc/0x220 [ 38.016010] ? perf_prepare_sample+0x1360/0x1360 [ 38.020756] ? __perf_event_overflow+0x1cc/0x340 [ 38.025510] ? perf_swevent_overflow+0x5a/0xf0 [ 38.030087] ? check_preemption_disabled+0x35/0x1f0 [ 38.035104] ? check_preemption_disabled+0x35/0x1f0 [ 38.040118] __perf_event_overflow+0x12d/0x340 [ 38.044697] perf_swevent_overflow+0x7a/0xf0 [ 38.049099] perf_swevent_event+0x112/0x270 [ 38.053415] perf_tp_event+0x633/0x7f0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.057300] ? perf_swevent_put_recursion_context+0xa0/0xa0 [ 38.063009] ? perf_trace_run_bpf_submit+0x113/0x170 [ 38.068110] ? trace_hardirqs_on+0x10/0x10 [ 38.072341] ? __lock_acquire+0x5d7/0x4320 [ 38.077183] ? perf_trace_run_bpf_submit+0x113/0x170 [ 38.082278] ? check_preemption_disabled+0x35/0x1f0 [ 38.087285] perf_trace_run_bpf_submit+0x113/0x170 [ 38.092210] perf_trace_lock_acquire+0x341/0x4e0 [ 38.096959] ? HARDIRQ_verbose+0x10/0x10 [ 38.101014] ? retint_kernel+0x2d/0x2d [ 38.104895] ? get_futex_key+0x4c1/0xf90 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.109733] lock_acquire+0x279/0x360 [ 38.113531] ? futex_wait_setup+0x132/0x330 [ 38.117845] _raw_spin_lock+0x2a/0x40 [ 38.121638] ? futex_wait_setup+0x132/0x330 [ 38.125952] futex_wait_setup+0x132/0x330 [ 38.130096] ? futex_wake+0x440/0x440 [ 38.133894] futex_wait+0x1ad/0x570 [ 38.137517] ? futex_wait_setup+0x330/0x330 [ 38.141837] ? wake_up_q+0xea/0x150 [ 38.145458] ? drop_futex_key_refs.isra.0+0x17/0xb0 [ 38.150467] ? futex_wake+0x15b/0x440 [ 38.154265] ? HARDIRQ_verbose+0x10/0x10 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.158320] ? SyS_perf_event_open+0x1a4d/0x2560 [ 38.163072] do_futex+0x13f/0x1980 [ 38.167563] ? lock_downgrade+0x630/0x630 [ 38.171701] ? lock_acquire+0x12b/0x360 [ 38.175671] ? check_preemption_disabled+0x35/0x1f0 [ 38.180681] ? exit_robust_list+0x240/0x240 [ 38.184996] ? __mutex_unlock_slowpath+0xff/0x690 [ 38.189833] ? get_unused_fd_flags+0xc0/0xc0 [ 38.194237] ? SyS_perf_event_open+0x19c3/0x2560 [ 38.198991] ? wait_for_completion_io+0x10/0x10 [ 38.203653] ? mark_held_locks+0xa6/0xf0 [ 38.207711] ? do_raw_spin_lock+0xb4/0x1d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.211944] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 38.217043] ? SyS_perf_event_open+0x633/0x2560 [ 38.221713] SyS_futex+0x1c5/0x2c3 [ 38.225252] ? do_futex+0x1980/0x1980 [ 38.229047] ? do_syscall_64+0x43/0x520 [ 38.233023] ? do_futex+0x1980/0x1980 [ 38.236818] do_syscall_64+0x19b/0x520 [ 38.240715] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 38.245894] RIP: 0033:0x4467e9 [ 38.249075] RSP: 002b:00007feb6987adb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.256774] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467e9 [ 38.264038] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc28 [ 38.271300] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 38.278562] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 38.285826] R13: 00007ffd392c28df R14: 00007feb6987b9c0 R15: 0000000000000000 [ 38.293096] [ 38.294722] The buggy address belongs to the page: [ 38.299644] page:ffffea00073f81c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 38.307774] flags: 0x4000000000000000() executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.311741] raw: 4000000000000000 0000000000000000 0000000000000000 00000000ffffffff [ 38.319614] raw: 0000000000000000 ffffea00073f81e0 0000000000000000 0000000000000000 [ 38.327484] page dumped because: kasan: bad access detected [ 38.333181] [ 38.334800] Memory state around the buggy address: [ 38.339719] ffff8881cfe07700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.347068] ffff8881cfe07780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.354504] >ffff8881cfe07800: 00 00 00 f1 f1 f1 f1 f1 f1 04 f2 00 f3 f3 f3 00 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.363153] ^ [ 38.369637] ffff8881cfe07880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.376987] ffff8881cfe07900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.384333] ================================================================== [ 38.391687] Disabling lock debugging due to kernel taint [ 38.397131] Kernel panic - not syncing: panic_on_warn set ... [ 38.397131] [ 38.404485] CPU: 1 PID: 1854 Comm: syz-executor700 Tainted: G B 4.14.151+ #0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.412787] Call Trace: [ 38.415373] dump_stack+0xca/0x134 [ 38.418911] panic+0x1f1/0x3da [ 38.422097] ? add_taint.cold+0x16/0x16 [ 38.426071] ? lock_downgrade+0x630/0x630 [ 38.430216] ? unwind_next_frame+0x169f/0x1810 [ 38.434791] end_report+0x43/0x49 [ 38.438234] ? unwind_next_frame+0x169f/0x1810 [ 38.442807] __kasan_report.cold+0xd/0x41 [ 38.446950] ? unwind_next_frame+0x169f/0x1810 [ 38.451523] unwind_next_frame+0x169f/0x1810 [ 38.455922] ? retint_kernel+0x2d/0x2d executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.459800] ? deref_stack_reg+0xe0/0xe0 [ 38.463853] ? perf_output_copy+0x1d0/0x1d0 [ 38.468175] ? retint_kernel+0x2d/0x2d [ 38.472058] perf_callchain_kernel+0x3a0/0x540 [ 38.476639] ? arch_perf_update_userpage+0x330/0x330 [ 38.481737] ? futex_wait_setup+0x132/0x330 [ 38.486055] ? put_callchain_buffers+0x60/0x60 [ 38.490640] get_perf_callchain+0x2f5/0x770 [ 38.494956] ? perf_callchain+0x150/0x190 [ 38.499100] ? put_callchain_buffers+0x60/0x60 [ 38.503679] ? __task_pid_nr_ns+0x1ea/0x450 [ 38.507997] perf_callchain+0x147/0x190 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.512053] perf_prepare_sample+0x6a8/0x1360 [ 38.516543] ? perf_prepare_sample+0x1360/0x1360 [ 38.521291] ? perf_output_sample+0x1700/0x1700 [ 38.526826] ? perf_swevent_put_recursion_context+0x1a/0xa0 [ 38.532535] perf_event_output_forward+0xdc/0x220 [ 38.537370] ? perf_prepare_sample+0x1360/0x1360 [ 38.542123] ? __perf_event_overflow+0x1cc/0x340 [ 38.546873] ? perf_swevent_overflow+0x5a/0xf0 [ 38.551447] ? check_preemption_disabled+0x35/0x1f0 [ 38.556455] ? check_preemption_disabled+0x35/0x1f0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.561467] __perf_event_overflow+0x12d/0x340 [ 38.566046] perf_swevent_overflow+0x7a/0xf0 [ 38.570450] perf_swevent_event+0x112/0x270 [ 38.574768] perf_tp_event+0x633/0x7f0 [ 38.578651] ? perf_swevent_put_recursion_context+0xa0/0xa0 [ 38.584360] ? perf_trace_run_bpf_submit+0x113/0x170 [ 38.589459] ? trace_hardirqs_on+0x10/0x10 [ 38.593690] ? __lock_acquire+0x5d7/0x4320 [ 38.597924] ? perf_trace_run_bpf_submit+0x113/0x170 [ 38.603024] ? check_preemption_disabled+0x35/0x1f0 [ 38.608034] perf_trace_run_bpf_submit+0x113/0x170 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.612962] perf_trace_lock_acquire+0x341/0x4e0 [ 38.617714] ? HARDIRQ_verbose+0x10/0x10 [ 38.621765] ? retint_kernel+0x2d/0x2d [ 38.625644] ? get_futex_key+0x4c1/0xf90 [ 38.629703] lock_acquire+0x279/0x360 [ 38.633503] ? futex_wait_setup+0x132/0x330 [ 38.637820] _raw_spin_lock+0x2a/0x40 [ 38.641617] ? futex_wait_setup+0x132/0x330 [ 38.645934] futex_wait_setup+0x132/0x330 [ 38.650074] ? futex_wake+0x440/0x440 [ 38.653874] futex_wait+0x1ad/0x570 [ 38.657492] ? futex_wait_setup+0x330/0x330 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.661808] ? wake_up_q+0xea/0x150 [ 38.665433] ? drop_futex_key_refs.isra.0+0x17/0xb0 [ 38.670444] ? futex_wake+0x15b/0x440 [ 38.674246] ? HARDIRQ_verbose+0x10/0x10 [ 38.678488] ? SyS_perf_event_open+0x1a4d/0x2560 [ 38.683240] do_futex+0x13f/0x1980 [ 38.686783] ? lock_downgrade+0x630/0x630 [ 38.690927] ? lock_acquire+0x12b/0x360 [ 38.694899] ? check_preemption_disabled+0x35/0x1f0 [ 38.699918] ? exit_robust_list+0x240/0x240 [ 38.704232] ? __mutex_unlock_slowpath+0xff/0x690 [ 38.709079] ? get_unused_fd_flags+0xc0/0xc0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.713487] ? SyS_perf_event_open+0x19c3/0x2560 [ 38.718245] ? wait_for_completion_io+0x10/0x10 [ 38.722914] ? mark_held_locks+0xa6/0xf0 [ 38.727070] ? do_raw_spin_lock+0xb4/0x1d0 [ 38.731306] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 38.736410] ? SyS_perf_event_open+0x633/0x2560 [ 38.741077] SyS_futex+0x1c5/0x2c3 [ 38.744615] ? do_futex+0x1980/0x1980 [ 38.748413] ? do_syscall_64+0x43/0x520 [ 38.752379] ? do_futex+0x1980/0x1980 [ 38.756171] do_syscall_64+0x19b/0x520 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 38.760055] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 38.765235] RIP: 0033:0x4467e9 [ 38.768413] RSP: 002b:00007feb6987adb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 38.776110] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467e9 [ 38.783372] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc28 [ 38.790641] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 38.797906] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 38.805166] R13: 00007ffd392c28df R14: 00007feb6987b9c0 R15: 0000000000000000 [ 38.813030] Kernel Offset: 0x18000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 38.823949] Rebooting in 86400 seconds..