Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.1.76' (ECDSA) to the list of known hosts.
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syzkaller login: [ 31.760087] ==================================================================
[ 31.767482] BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x1360/0x17d0
[ 31.774874] Read of size 8 at addr ffff8880ba407ca8 by task syz-executor113/8609
[ 31.782393]
[ 31.784015] CPU: 0 PID: 8609 Comm: syz-executor113 Not tainted 4.14.228-syzkaller #0
[ 31.791907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 31.801252] Call Trace:
[ 31.803827]
[ 31.805975] dump_stack+0x1b2/0x281
[ 31.809623] print_address_description.cold+0x54/0x1d3
[ 31.815002] kasan_report_error.cold+0x8a/0x191
[ 31.819671] ? unwind_next_frame+0x1360/0x17d0
[ 31.824254] __asan_report_load8_noabort+0x68/0x70
[ 31.829178] ? unwind_next_frame+0x1360/0x17d0
[ 31.833782] unwind_next_frame+0x1360/0x17d0
[ 31.838215] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 31.843575] ? deref_stack_reg+0x1a0/0x1a0
[ 31.847839] ? perf_output_copy+0x210/0x210
[ 31.852157] ? check_preemption_disabled+0x35/0x240
[ 31.857169] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 31.862529] perf_callchain_kernel+0x38c/0x520
[ 31.867110] ? arch_perf_update_userpage+0x300/0x300
[ 31.872212] ? check_preemption_disabled+0x35/0x240
[ 31.877223] ? kernel_text_address+0xbd/0xf0
[ 31.881630] ? check_preemption_disabled+0x35/0x240
[ 31.886644] get_perf_callchain+0x2de/0x740
[ 31.890963] ? put_callchain_buffers+0x60/0x60
[ 31.895543] ? perf_tp_event+0x3e0/0x6e0
[ 31.899606] perf_callchain+0x147/0x190
[ 31.903585] perf_prepare_sample+0xd77/0x1380
[ 31.908076] ? perf_event_output_forward+0x143/0x1f0
[ 31.913176] ? perf_output_sample+0x16f0/0x16f0
[ 31.917844] perf_event_output_forward+0xc9/0x1f0
[ 31.922703] ? perf_prepare_sample+0x1380/0x1380
[ 31.927452] ? __perf_event_overflow+0x1b6/0x310
[ 31.932205] ? check_preemption_disabled+0x35/0x240
[ 31.937241] __perf_event_overflow+0x113/0x310
[ 31.941832] perf_swevent_event+0x3c8/0x460
[ 31.946155] perf_tp_event+0x540/0x6e0
[ 31.950039] ? perf_swevent_event+0x460/0x460
[ 31.954553] ? perf_trace_run_bpf_submit+0x119/0x200
[ 31.959658] ? trace_hardirqs_on+0x10/0x10
[ 31.963915] ? HARDIRQ_verbose+0x10/0x10
[ 31.967992] ? __save_stack_trace+0x63/0x160
[ 31.972396] ? deref_stack_reg+0x124/0x1a0
[ 31.976630] ? is_bpf_text_address+0x91/0x150
[ 31.981123] ? lock_acquire+0x170/0x3f0
[ 31.985090] ? lock_downgrade+0x740/0x740
[ 31.989240] ? is_bpf_text_address+0xb8/0x150
[ 31.993765] ? kernel_text_address+0xbd/0xf0
[ 31.998172] ? perf_trace_run_bpf_submit+0x119/0x200
[ 32.003269] ? __kernel_text_address+0x9/0x30
[ 32.007779] ? unwind_get_return_address+0x51/0x90
[ 32.012714] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.018070] ? __save_stack_trace+0xa0/0x160
[ 32.022474] ? perf_trace_run_bpf_submit+0x119/0x200
[ 32.027580] ? check_preemption_disabled+0x35/0x240
[ 32.032597] perf_trace_run_bpf_submit+0x119/0x200
[ 32.037524] perf_trace_lock_acquire+0x332/0x510
[ 32.042274] ? apic_timer_interrupt+0x93/0xa0
[ 32.046762] ? _raw_spin_unlock_irqrestore+0xa3/0xe0
[ 32.051858] ? debug_check_no_obj_freed+0x2c0/0x680
[ 32.056894] ? HARDIRQ_verbose+0x10/0x10
[ 32.060953] ? SyS_exit_group+0x19/0x20
[ 32.064923] ? do_syscall_64+0x1d5/0x640
[ 32.068975] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.074333] lock_acquire+0x2b8/0x3f0
[ 32.078135] ? debug_object_active_state+0xe7/0x330
[ 32.083148] _raw_spin_lock_irqsave+0x8c/0xc0
[ 32.087636] ? debug_object_active_state+0xe7/0x330
[ 32.092671] debug_object_active_state+0xe7/0x330
[ 32.097509] ? debug_object_free+0x320/0x320
[ 32.101912] ? lock_downgrade+0x740/0x740
[ 32.106051] ? find_get_pid+0x200/0x200
[ 32.110022] rcu_process_callbacks+0x82d/0x1180
[ 32.114708] ? note_gp_changes+0x2f0/0x2f0
[ 32.118940] ? sched_clock+0x2a/0x40
[ 32.122650] ? rcu_lockdep_current_cpu_online+0xed/0x140
[ 32.128097] __do_softirq+0x24d/0x9ff
[ 32.131891] ? check_preemption_disabled+0x35/0x240
[ 32.136903] irq_exit+0x193/0x240
[ 32.140350] smp_apic_timer_interrupt+0x141/0x5e0
[ 32.145209] apic_timer_interrupt+0x93/0xa0
[ 32.149519]
[ 32.151782] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0
[ 32.157479] RSP: 0018:ffff8880a48379c8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
[ 32.165180] RAX: 1ffffffff11e1259 RBX: 0000000000000286 RCX: 0000000000000000
[ 32.172440] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286
[ 32.179728] RBP: ffffffff8c09e788 R08: ffffffff8b997ba8 R09: 0000000000000000
[ 32.187015] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808c000000
[ 32.194277] R13: 0000000000000000 R14: ffffffff8c09e788 R15: 0000000000000000
[ 32.201554] debug_check_no_obj_freed+0x2c0/0x680
[ 32.206424] ? free_transhuge_page+0x1e8/0x290
[ 32.211004] ? debug_object_activate+0x490/0x490
[ 32.215755] ? rcu_lockdep_current_cpu_online+0xed/0x140
[ 32.221200] __free_pages_ok+0x215/0xeb0
[ 32.225280] ? _raw_spin_unlock_irqrestore+0x66/0xe0
[ 32.230378] ? free_transhuge_page+0x1e8/0x290
[ 32.234955] release_pages+0x779/0xbf0
[ 32.238841] ? __put_compound_page+0xb0/0xb0
[ 32.243241] ? free_pages_and_swap_cache+0x166/0x210
[ 32.248338] tlb_flush_mmu_free+0xc1/0x1a0
[ 32.252574] tlb_finish_mmu+0xf3/0x1e0
[ 32.256455] exit_mmap+0x290/0x4d0
[ 32.259987] ? SyS_remap_file_pages+0x6a0/0x6a0
[ 32.264653] ? kmem_cache_free+0x23a/0x2b0
[ 32.268886] ? __khugepaged_exit+0x29b/0x3c0
[ 32.273291] mmput+0xfa/0x420
[ 32.276413] do_exit+0x984/0x2850
[ 32.279864] ? __do_page_fault+0x571/0xad0
[ 32.284093] ? mm_update_next_owner+0x5b0/0x5b0
[ 32.288754] ? lock_downgrade+0x740/0x740
[ 32.292900] do_group_exit+0x100/0x2e0
[ 32.296783] SyS_exit_group+0x19/0x20
[ 32.300584] ? do_group_exit+0x2e0/0x2e0
[ 32.304642] do_syscall_64+0x1d5/0x640
[ 32.308527] entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.313713] RIP: 0033:0x43e989
[ 32.316917] RSP: 002b:00007ffebcf06408 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 32.324617] RAX: ffffffffffffffda RBX: 00000000004b02f0 RCX: 000000000043e989
[ 32.331878] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
[ 32.339165] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000
[ 32.346456] R10: 0000000000000800 R11: 0000000000000246 R12: 00000000004b02f0
[ 32.353717] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[ 32.360981]
[ 32.362596] The buggy address belongs to the page:
[ 32.367515] page:ffffea0002e901c0 count:1 mapcount:0 mapping: (null) index:0x0
[ 32.375648] flags: 0xfff00000000800(reserved)
[ 32.380159] raw: 00fff00000000800 0000000000000000 0000000000000000 00000001ffffffff
[ 32.388035] raw: ffffea0002e901e0 ffffea0002e901e0 0000000000000000 0000000000000000
[ 32.395905] page dumped because: kasan: bad access detected
[ 32.401601]
[ 32.403248] Memory state around the buggy address:
[ 32.408165] ffff8880ba407b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 32.415515] ffff8880ba407c00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 f1
[ 32.422864] >ffff8880ba407c80: f1 04 f2 00 f3 f3 f3 00 00 00 00 00 00 00 00 00
[ 32.430210] ^
[ 32.434892] ffff8880ba407d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 32.442265] ffff8880ba407d80: 00 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 f3 f3
[ 32.449639] ==================================================================
[ 32.456985] Disabling lock debugging due to kernel taint
[ 32.462546] Kernel panic - not syncing: panic_on_warn set ...
[ 32.462546]
[ 32.469907] CPU: 0 PID: 8609 Comm: syz-executor113 Tainted: G B 4.14.228-syzkaller #0
[ 32.478993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 32.488338] Call Trace:
[ 32.490936]
[ 32.493087] dump_stack+0x1b2/0x281
[ 32.496715] panic+0x1f9/0x42d
[ 32.499901] ? add_taint.cold+0x16/0x16
[ 32.503895] ? lock_downgrade+0x740/0x740
[ 32.508040] kasan_end_report+0x43/0x49
[ 32.512021] kasan_report_error.cold+0xa7/0x191
[ 32.516695] ? unwind_next_frame+0x1360/0x17d0
[ 32.521274] __asan_report_load8_noabort+0x68/0x70
[ 32.526198] ? unwind_next_frame+0x1360/0x17d0
[ 32.530795] unwind_next_frame+0x1360/0x17d0
[ 32.535199] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.540570] ? deref_stack_reg+0x1a0/0x1a0
[ 32.544803] ? perf_output_copy+0x210/0x210
[ 32.549122] ? check_preemption_disabled+0x35/0x240
[ 32.554133] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.559494] perf_callchain_kernel+0x38c/0x520
[ 32.564075] ? arch_perf_update_userpage+0x300/0x300
[ 32.569194] ? check_preemption_disabled+0x35/0x240
[ 32.574230] ? kernel_text_address+0xbd/0xf0
[ 32.578631] ? check_preemption_disabled+0x35/0x240
[ 32.583643] get_perf_callchain+0x2de/0x740
[ 32.587962] ? put_callchain_buffers+0x60/0x60
[ 32.592540] ? perf_tp_event+0x3e0/0x6e0
[ 32.596596] perf_callchain+0x147/0x190
[ 32.600566] perf_prepare_sample+0xd77/0x1380
[ 32.605054] ? perf_event_output_forward+0x143/0x1f0
[ 32.610150] ? perf_output_sample+0x16f0/0x16f0
[ 32.614814] perf_event_output_forward+0xc9/0x1f0
[ 32.619650] ? perf_prepare_sample+0x1380/0x1380
[ 32.624397] ? __perf_event_overflow+0x1b6/0x310
[ 32.629150] ? check_preemption_disabled+0x35/0x240
[ 32.634191] __perf_event_overflow+0x113/0x310
[ 32.638768] perf_swevent_event+0x3c8/0x460
[ 32.643084] perf_tp_event+0x540/0x6e0
[ 32.646966] ? perf_swevent_event+0x460/0x460
[ 32.651454] ? perf_trace_run_bpf_submit+0x119/0x200
[ 32.656553] ? trace_hardirqs_on+0x10/0x10
[ 32.660811] ? HARDIRQ_verbose+0x10/0x10
[ 32.664866] ? __save_stack_trace+0x63/0x160
[ 32.669272] ? deref_stack_reg+0x124/0x1a0
[ 32.673502] ? is_bpf_text_address+0x91/0x150
[ 32.677992] ? lock_acquire+0x170/0x3f0
[ 32.681957] ? lock_downgrade+0x740/0x740
[ 32.686099] ? is_bpf_text_address+0xb8/0x150
[ 32.690611] ? kernel_text_address+0xbd/0xf0
[ 32.695012] ? perf_trace_run_bpf_submit+0x119/0x200
[ 32.700108] ? __kernel_text_address+0x9/0x30
[ 32.704598] ? unwind_get_return_address+0x51/0x90
[ 32.709523] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.714899] ? __save_stack_trace+0xa0/0x160
[ 32.719304] ? perf_trace_run_bpf_submit+0x119/0x200
[ 32.724407] ? check_preemption_disabled+0x35/0x240
[ 32.729419] perf_trace_run_bpf_submit+0x119/0x200
[ 32.734348] perf_trace_lock_acquire+0x332/0x510
[ 32.739108] ? apic_timer_interrupt+0x93/0xa0
[ 32.743627] ? _raw_spin_unlock_irqrestore+0xa3/0xe0
[ 32.748723] ? debug_check_no_obj_freed+0x2c0/0x680
[ 32.753734] ? HARDIRQ_verbose+0x10/0x10
[ 32.757791] ? SyS_exit_group+0x19/0x20
[ 32.761757] ? do_syscall_64+0x1d5/0x640
[ 32.765810] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 32.771168] lock_acquire+0x2b8/0x3f0
[ 32.774965] ? debug_object_active_state+0xe7/0x330
[ 32.779978] _raw_spin_lock_irqsave+0x8c/0xc0
[ 32.784471] ? debug_object_active_state+0xe7/0x330
[ 32.789484] debug_object_active_state+0xe7/0x330
[ 32.794322] ? debug_object_free+0x320/0x320
[ 32.798728] ? lock_downgrade+0x740/0x740
[ 32.802868] ? find_get_pid+0x200/0x200
[ 32.806837] rcu_process_callbacks+0x82d/0x1180
[ 32.811506] ? note_gp_changes+0x2f0/0x2f0
[ 32.815748] ? sched_clock+0x2a/0x40
[ 32.819460] ? rcu_lockdep_current_cpu_online+0xed/0x140
[ 32.824908] __do_softirq+0x24d/0x9ff
[ 32.828704] ? check_preemption_disabled+0x35/0x240
[ 32.833716] irq_exit+0x193/0x240
[ 32.837160] smp_apic_timer_interrupt+0x141/0x5e0
[ 32.842007] apic_timer_interrupt+0x93/0xa0
[ 32.846319]
[ 32.848639] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0
[ 32.854377] RSP: 0018:ffff8880a48379c8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
[ 32.862074] RAX: 1ffffffff11e1259 RBX: 0000000000000286 RCX: 0000000000000000
[ 32.869336] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286
[ 32.876597] RBP: ffffffff8c09e788 R08: ffffffff8b997ba8 R09: 0000000000000000
[ 32.883858] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808c000000
[ 32.891122] R13: 0000000000000000 R14: ffffffff8c09e788 R15: 0000000000000000
[ 32.898399] debug_check_no_obj_freed+0x2c0/0x680
[ 32.903262] ? free_transhuge_page+0x1e8/0x290
[ 32.907952] ? debug_object_activate+0x490/0x490
[ 32.912704] ? rcu_lockdep_current_cpu_online+0xed/0x140
[ 32.918173] __free_pages_ok+0x215/0xeb0
[ 32.922243] ? _raw_spin_unlock_irqrestore+0x66/0xe0
[ 32.927342] ? free_transhuge_page+0x1e8/0x290
[ 32.931918] release_pages+0x779/0xbf0
[ 32.935803] ? __put_compound_page+0xb0/0xb0
[ 32.940212] ? free_pages_and_swap_cache+0x166/0x210
[ 32.945312] tlb_flush_mmu_free+0xc1/0x1a0
[ 32.949539] tlb_finish_mmu+0xf3/0x1e0
[ 32.953437] exit_mmap+0x290/0x4d0
[ 32.956969] ? SyS_remap_file_pages+0x6a0/0x6a0
[ 32.961638] ? kmem_cache_free+0x23a/0x2b0
[ 32.965870] ? __khugepaged_exit+0x29b/0x3c0
[ 32.970275] mmput+0xfa/0x420
[ 32.973376] do_exit+0x984/0x2850
[ 32.976826] ? __do_page_fault+0x571/0xad0
[ 32.981056] ? mm_update_next_owner+0x5b0/0x5b0
[ 32.985718] ? lock_downgrade+0x740/0x740
[ 32.989862] do_group_exit+0x100/0x2e0
[ 32.993745] SyS_exit_group+0x19/0x20
[ 32.997541] ? do_group_exit+0x2e0/0x2e0
[ 33.001598] do_syscall_64+0x1d5/0x640
[ 33.005484] entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 33.010668] RIP: 0033:0x43e989
[ 33.013854] RSP: 002b:00007ffebcf06408 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 33.021555] RAX: ffffffffffffffda RBX: 00000000004b02f0 RCX: 000000000043e989
[ 33.028818] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
[ 33.036081] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000
[ 33.043364] R10: 0000000000000800 R11: 0000000000000246 R12: 00000000004b02f0
[ 33.050622] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[ 33.058387] Kernel Offset: disabled
[ 33.062000] Rebooting in 86400 seconds..