Warning: Permanently added '10.128.0.75' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 54.820138] kauditd_printk_skb: 3 callbacks suppressed [ 54.820153] audit: type=1400 audit(1582744390.994:36): avc: denied { map } for pid=8046 comm="syz-executor166" path="/root/syz-executor166785951" 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 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 55.495323] ================================================================== [ 55.503095] BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x1440/0x18a0 [ 55.510453] Read of size 8 at addr ffff8880ae607828 by task syz-executor166/8197 [ 55.518013] [ 55.519640] CPU: 0 PID: 8197 Comm: syz-executor166 Not tainted 4.19.106-syzkaller #0 [ 55.527514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.536853] Call Trace: [ 55.539424] [ 55.541567] dump_stack+0x188/0x20d [ 55.545191] ? unwind_next_frame+0x1440/0x18a0 [ 55.549783] print_address_description.cold+0x7c/0x212 [ 55.555048] ? unwind_next_frame+0x1440/0x18a0 [ 55.559618] kasan_report.cold+0x88/0x2b9 [ 55.563830] unwind_next_frame+0x1440/0x18a0 [ 55.568233] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.573588] ? deref_stack_reg+0xe0/0xe0 [ 55.577746] ? lock_downgrade+0x740/0x740 [ 55.581883] ? check_preemption_disabled+0x41/0x280 [ 55.586890] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.592299] perf_callchain_kernel+0x402/0x5c0 [ 55.596869] ? arch_perf_update_userpage+0x370/0x370 [ 55.601963] ? free_one_page+0x127/0xee0 [ 55.606046] ? arch_perf_update_userpage+0x370/0x370 [ 55.611139] ? perf_output_copy+0x220/0x220 [ 55.615514] get_perf_callchain+0x390/0x860 [ 55.619858] ? put_callchain_buffers+0x70/0x70 [ 55.624429] ? kvm_clock_read+0x14/0x30 [ 55.628390] ? kvm_sched_clock_read+0x5/0x10 [ 55.632785] ? sched_clock+0x2a/0x40 [ 55.636486] ? sched_clock_cpu+0x18/0x1b0 [ 55.640748] perf_callchain+0x165/0x1c0 [ 55.644735] perf_prepare_sample+0x80a/0x1570 [ 55.649318] ? perf_callchain+0x165/0x1c0 [ 55.653457] ? perf_callchain+0x1c0/0x1c0 [ 55.657661] ? perf_prepare_sample+0x7b8/0x1570 [ 55.662461] perf_event_output_forward+0xf3/0x270 [ 55.667363] ? perf_prepare_sample+0x1570/0x1570 [ 55.672114] ? perf_event_output_forward+0x191/0x270 [ 55.677208] ? check_preemption_disabled+0x41/0x280 [ 55.682213] __perf_event_overflow+0x13c/0x370 [ 55.686790] perf_swevent_overflow+0xac/0x150 [ 55.691277] perf_swevent_event+0x14d/0x2e0 [ 55.695681] perf_tp_event+0x29f/0x850 [ 55.699566] ? perf_swevent_put_recursion_context+0xa0/0xa0 [ 55.705316] ? find_held_lock+0x2d/0x110 [ 55.709375] ? lock_downgrade+0x740/0x740 [ 55.713987] ? check_preemption_disabled+0x41/0x280 [ 55.719070] ? is_bpf_text_address+0xd0/0x160 [ 55.723571] ? kernel_text_address+0x6e/0xe0 [ 55.728039] ? __kernel_text_address+0x9/0x30 [ 55.732637] ? unwind_get_return_address+0x5a/0xa0 [ 55.737763] ? __save_stack_trace+0x8a/0xf0 [ 55.742081] ? perf_trace_run_bpf_submit+0x136/0x190 [ 55.747321] ? check_preemption_disabled+0x41/0x280 [ 55.752364] perf_trace_run_bpf_submit+0x136/0x190 [ 55.757299] perf_trace_lock_acquire+0x362/0x530 [ 55.762051] ? mark_held_locks+0xf0/0xf0 [ 55.766195] ? perf_trace_lock+0x4c0/0x4c0 [ 55.770433] ? do_syscall_64+0xf9/0x620 [ 55.774406] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.779784] ? perf_trace_lock+0x4c0/0x4c0 [ 55.784191] lock_acquire+0x2a0/0x400 [ 55.788038] ? free_one_page+0x127/0xee0 [ 55.792275] bad_range+0xc0/0x3c0 [ 55.795857] ? free_one_page+0x127/0xee0 [ 55.800027] ? __mod_zone_page_state+0x84/0xf0 [ 55.804784] free_one_page+0x127/0xee0 [ 55.808809] ? debug_check_no_obj_freed+0x20a/0x42e [ 55.813919] ? kernel_poison_pages+0x2c/0x2a0 [ 55.818415] __free_pages_ok+0x438/0xd80 [ 55.822737] __put_page+0x71/0x380 [ 55.826371] page_to_skb+0x5e2/0x800 [ 55.830332] receive_buf+0x1da4/0x5c70 [ 55.834225] ? virtnet_set_rx_mode+0x890/0x890 [ 55.838943] ? vring_use_dma_api+0x9d/0xc0 [ 55.843235] ? detach_buf+0x487/0x5d0 [ 55.847038] ? virtqueue_get_buf_ctx+0x35b/0x6d0 [ 55.851922] virtnet_poll+0x541/0xd60 [ 55.855872] ? receive_buf+0x5c70/0x5c70 [ 55.859929] ? perf_trace_lock_acquire+0x362/0x530 [ 55.865115] ? net_rx_action+0x25f/0xfc0 [ 55.869296] net_rx_action+0x4ab/0xfc0 [ 55.873216] ? napi_complete_done+0x4e0/0x4e0 [ 55.877854] ? sched_clock+0x2a/0x40 [ 55.881688] __do_softirq+0x26c/0x93c [ 55.885494] irq_exit+0x17b/0x1c0 [ 55.888983] do_IRQ+0x10c/0x1c0 [ 55.892444] common_interrupt+0xf/0xf [ 55.896254] [ 55.898488] RIP: 0010:_raw_spin_unlock_irqrestore+0x91/0xe0 [ 55.904203] Code: 48 c7 c0 08 56 b2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 37 48 83 3d 0e d1 92 01 00 74 22 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 50 05 27 fa 65 8b 05 b9 68 e2 78 [ 55.923250] RSP: 0018:ffff88808fb3f9a0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffd5 [ 55.931078] RAX: 1ffffffff1164ac1 RBX: 0000000000000282 RCX: 0000000000000000 [ 55.938462] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282 [ 55.945953] RBP: ffffffff8b7f3108 R08: ffff88808ea4e3c0 R09: 0000000000000000 [ 55.953231] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000282 [ 55.960756] R13: ffff8880802e0000 R14: ffffffff8b7f3108 R15: 0000000000000000 [ 55.968154] debug_check_no_obj_freed+0x20a/0x42e [ 55.973007] __free_pages_ok+0x241/0xd80 [ 55.977192] release_pages+0x595/0x18f0 [ 55.981434] ? put_pages_list+0x3e0/0x3e0 [ 55.985944] ? free_pages_and_swap_cache+0x297/0x3e0 [ 55.991045] tlb_flush_mmu_free+0x72/0x140 [ 55.995276] arch_tlb_finish_mmu+0x224/0x510 [ 55.999800] tlb_finish_mmu+0x97/0x100 [ 56.003716] exit_mmap+0x2d2/0x510 [ 56.007352] ? __ia32_sys_munmap+0x80/0x80 [ 56.011592] ? trace_hardirqs_off+0x50/0x200 [ 56.016008] ? __khugepaged_exit+0x2c3/0x3d0 [ 56.020592] ? rcu_read_lock_sched_held+0x10a/0x130 [ 56.025619] ? kmem_cache_free+0x218/0x260 [ 56.029847] ? __khugepaged_exit+0x2e4/0x3d0 [ 56.034261] mmput+0x14e/0x4a0 [ 56.037768] do_exit+0xac8/0x2f30 [ 56.041269] ? mm_update_next_owner+0x650/0x650 [ 56.046054] ? up_read+0x17/0x110 [ 56.049508] ? __do_page_fault+0x44e/0xdd0 [ 56.053736] do_group_exit+0x125/0x350 [ 56.057613] __x64_sys_exit_group+0x3a/0x50 [ 56.061931] do_syscall_64+0xf9/0x620 [ 56.065794] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.070975] RIP: 0033:0x43ff98 [ 56.074166] Code: Bad RIP value. [ 56.077551] RSP: 002b:00007ffe0fe84d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.085248] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ff98 [ 56.092507] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 56.099764] RBP: 00000000004bf7d0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 56.107234] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 56.114500] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 56.121764] [ 56.123381] The buggy address belongs to the page: [ 56.128539] page:ffffea0002b981c0 count:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 56.136951] flags: 0xfffe0000000800(reserved) [ 56.141527] raw: 00fffe0000000800 ffffea0002b981c8 ffffea0002b981c8 0000000000000000 [ 56.149516] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 56.157438] page dumped because: kasan: bad access detected [ 56.163252] [ 56.164877] Memory state around the buggy address: [ 56.169976] ffff8880ae607700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 56.177330] ffff8880ae607780: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 [ 56.184680] >ffff8880ae607800: f1 f1 04 f2 00 f3 f3 f3 00 00 00 00 00 00 00 00 [ 56.192025] ^ [ 56.196681] ffff8880ae607880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 56.204110] ffff8880ae607900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 56.211516] ================================================================== [ 56.218909] Disabling lock debugging due to kernel taint [ 56.224351] Kernel panic - not syncing: panic_on_warn set ... [ 56.224351] [ 56.231896] CPU: 0 PID: 8197 Comm: syz-executor166 Tainted: G B 4.19.106-syzkaller #0 [ 56.241192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.250545] Call Trace: [ 56.253169] [ 56.255329] dump_stack+0x188/0x20d [ 56.258948] panic+0x26a/0x50e [ 56.262132] ? __warn_printk+0xf3/0xf3 [ 56.266320] ? lock_downgrade+0x740/0x740 [ 56.270466] ? print_shadow_for_address+0xb8/0x114 [ 56.275402] ? trace_hardirqs_off+0x50/0x200 [ 56.279883] ? unwind_next_frame+0x1440/0x18a0 [ 56.284468] kasan_end_report+0x43/0x49 [ 56.288442] kasan_report.cold+0xa4/0x2b9 [ 56.292615] unwind_next_frame+0x1440/0x18a0 [ 56.297023] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.302498] ? deref_stack_reg+0xe0/0xe0 [ 56.306559] ? lock_downgrade+0x740/0x740 [ 56.310701] ? check_preemption_disabled+0x41/0x280 [ 56.315711] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.321068] perf_callchain_kernel+0x402/0x5c0 [ 56.325640] ? arch_perf_update_userpage+0x370/0x370 [ 56.330826] ? free_one_page+0x127/0xee0 [ 56.334879] ? arch_perf_update_userpage+0x370/0x370 [ 56.340230] ? perf_output_copy+0x220/0x220 [ 56.344556] get_perf_callchain+0x390/0x860 [ 56.348911] ? put_callchain_buffers+0x70/0x70 [ 56.353490] ? kvm_clock_read+0x14/0x30 [ 56.357453] ? kvm_sched_clock_read+0x5/0x10 [ 56.361980] ? sched_clock+0x2a/0x40 [ 56.365681] ? sched_clock_cpu+0x18/0x1b0 [ 56.369832] perf_callchain+0x165/0x1c0 [ 56.373796] perf_prepare_sample+0x80a/0x1570 [ 56.378278] ? perf_callchain+0x165/0x1c0 [ 56.382426] ? perf_callchain+0x1c0/0x1c0 [ 56.386561] ? perf_prepare_sample+0x7b8/0x1570 [ 56.391275] perf_event_output_forward+0xf3/0x270 [ 56.396106] ? perf_prepare_sample+0x1570/0x1570 [ 56.400956] ? perf_event_output_forward+0x191/0x270 [ 56.406130] ? check_preemption_disabled+0x41/0x280 [ 56.411530] __perf_event_overflow+0x13c/0x370 [ 56.416121] perf_swevent_overflow+0xac/0x150 [ 56.420712] perf_swevent_event+0x14d/0x2e0 [ 56.425040] perf_tp_event+0x29f/0x850 [ 56.429097] ? perf_swevent_put_recursion_context+0xa0/0xa0 [ 56.434802] ? find_held_lock+0x2d/0x110 [ 56.438911] ? lock_downgrade+0x740/0x740 [ 56.443059] ? check_preemption_disabled+0x41/0x280 [ 56.448069] ? is_bpf_text_address+0xd0/0x160 [ 56.452652] ? kernel_text_address+0x6e/0xe0 [ 56.457084] ? __kernel_text_address+0x9/0x30 [ 56.461567] ? unwind_get_return_address+0x5a/0xa0 [ 56.466520] ? __save_stack_trace+0x8a/0xf0 [ 56.470834] ? perf_trace_run_bpf_submit+0x136/0x190 [ 56.475930] ? check_preemption_disabled+0x41/0x280 [ 56.480971] perf_trace_run_bpf_submit+0x136/0x190 [ 56.485895] perf_trace_lock_acquire+0x362/0x530 [ 56.490643] ? mark_held_locks+0xf0/0xf0 [ 56.494744] ? perf_trace_lock+0x4c0/0x4c0 [ 56.498971] ? do_syscall_64+0xf9/0x620 [ 56.502933] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.508318] ? perf_trace_lock+0x4c0/0x4c0 [ 56.512630] lock_acquire+0x2a0/0x400 [ 56.516418] ? free_one_page+0x127/0xee0 [ 56.520507] bad_range+0xc0/0x3c0 [ 56.523946] ? free_one_page+0x127/0xee0 [ 56.527994] ? __mod_zone_page_state+0x84/0xf0 [ 56.532562] free_one_page+0x127/0xee0 [ 56.536438] ? debug_check_no_obj_freed+0x20a/0x42e [ 56.541444] ? kernel_poison_pages+0x2c/0x2a0 [ 56.545932] __free_pages_ok+0x438/0xd80 [ 56.550025] __put_page+0x71/0x380 [ 56.553593] page_to_skb+0x5e2/0x800 [ 56.557309] receive_buf+0x1da4/0x5c70 [ 56.561232] ? virtnet_set_rx_mode+0x890/0x890 [ 56.566015] ? vring_use_dma_api+0x9d/0xc0 [ 56.570243] ? detach_buf+0x487/0x5d0 [ 56.574039] ? virtqueue_get_buf_ctx+0x35b/0x6d0 [ 56.578922] virtnet_poll+0x541/0xd60 [ 56.582726] ? receive_buf+0x5c70/0x5c70 [ 56.586839] ? perf_trace_lock_acquire+0x362/0x530 [ 56.591762] ? net_rx_action+0x25f/0xfc0 [ 56.595832] net_rx_action+0x4ab/0xfc0 [ 56.599713] ? napi_complete_done+0x4e0/0x4e0 [ 56.604197] ? sched_clock+0x2a/0x40 [ 56.607903] __do_softirq+0x26c/0x93c [ 56.611727] irq_exit+0x17b/0x1c0 [ 56.615174] do_IRQ+0x10c/0x1c0 [ 56.618447] common_interrupt+0xf/0xf [ 56.622270] [ 56.624580] RIP: 0010:_raw_spin_unlock_irqrestore+0x91/0xe0 [ 56.630322] Code: 48 c7 c0 08 56 b2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 37 48 83 3d 0e d1 92 01 00 74 22 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 50 05 27 fa 65 8b 05 b9 68 e2 78 [ 56.649247] RSP: 0018:ffff88808fb3f9a0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffd5 [ 56.656950] RAX: 1ffffffff1164ac1 RBX: 0000000000000282 RCX: 0000000000000000 [ 56.664215] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282 [ 56.671476] RBP: ffffffff8b7f3108 R08: ffff88808ea4e3c0 R09: 0000000000000000 [ 56.678823] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000282 [ 56.686110] R13: ffff8880802e0000 R14: ffffffff8b7f3108 R15: 0000000000000000 [ 56.693415] debug_check_no_obj_freed+0x20a/0x42e [ 56.698284] __free_pages_ok+0x241/0xd80 [ 56.702334] release_pages+0x595/0x18f0 [ 56.706297] ? put_pages_list+0x3e0/0x3e0 [ 56.710621] ? free_pages_and_swap_cache+0x297/0x3e0 [ 56.715727] tlb_flush_mmu_free+0x72/0x140 [ 56.719992] arch_tlb_finish_mmu+0x224/0x510 [ 56.724397] tlb_finish_mmu+0x97/0x100 [ 56.728511] exit_mmap+0x2d2/0x510 [ 56.732134] ? __ia32_sys_munmap+0x80/0x80 [ 56.736432] ? trace_hardirqs_off+0x50/0x200 [ 56.740833] ? __khugepaged_exit+0x2c3/0x3d0 [ 56.745234] ? rcu_read_lock_sched_held+0x10a/0x130 [ 56.750418] ? kmem_cache_free+0x218/0x260 [ 56.754826] ? __khugepaged_exit+0x2e4/0x3d0 [ 56.759304] mmput+0x14e/0x4a0 [ 56.762531] do_exit+0xac8/0x2f30 [ 56.766042] ? mm_update_next_owner+0x650/0x650 [ 56.770710] ? up_read+0x17/0x110 [ 56.774156] ? __do_page_fault+0x44e/0xdd0 [ 56.778443] do_group_exit+0x125/0x350 [ 56.782348] __x64_sys_exit_group+0x3a/0x50 [ 56.786843] do_syscall_64+0xf9/0x620 [ 56.790716] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.796045] RIP: 0033:0x43ff98 [ 56.799251] Code: Bad RIP value. [ 56.802675] RSP: 002b:00007ffe0fe84d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.810489] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ff98 [ 56.817751] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 56.825037] RBP: 00000000004bf7d0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 56.832296] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 56.839559] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 57.974090] Shutting down cpus with NMI [ 57.979776] Kernel Offset: disabled [ 57.983409] Rebooting in 86400 seconds..