[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.300952] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.628393] random: sshd: uninitialized urandom read (32 bytes read) [ 19.895609] random: sshd: uninitialized urandom read (32 bytes read) [ 20.617327] random: sshd: uninitialized urandom read (32 bytes read) [ 20.763116] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.13' (ECDSA) to the list of known hosts. [ 26.184989] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 26.274320] IPVS: ftp: loaded support on port[0] = 21 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 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 [ 30.867119] ================================================================== [ 30.874580] BUG: KASAN: slab-out-of-bounds in find_first_bit+0xf7/0x100 [ 30.881334] Read of size 8 at addr ffff8801d9111d10 by task syz-executor559/4542 [ 30.888954] [ 30.890589] CPU: 0 PID: 4542 Comm: syz-executor559 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 30.899075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.908423] Call Trace: [ 30.911045] dump_stack+0x1c9/0x2b4 [ 30.914699] ? dump_stack_print_info.cold.2+0x52/0x52 [ 30.919930] ? printk+0xa7/0xcf [ 30.923236] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 30.928026] ? find_first_bit+0xf7/0x100 [ 30.932216] print_address_description+0x6c/0x20b [ 30.937079] ? find_first_bit+0xf7/0x100 [ 30.941139] kasan_report.cold.7+0x242/0x30d [ 30.945549] __asan_report_load8_noabort+0x14/0x20 [ 30.950491] find_first_bit+0xf7/0x100 [ 30.954386] shrink_slab+0x5d0/0xdb0 [ 30.958219] ? shrink_node_memcg+0xc91/0x18f0 [ 30.962729] ? unregister_memcg_shrinker.isra.39+0x50/0x50 [ 30.968374] ? shrink_active_list+0x1830/0x1830 [ 30.973056] ? cgroup_rstat_updated+0xe6/0x470 [ 30.977649] ? trace_hardirqs_on+0x10/0x10 [ 30.981887] ? __account_cfs_rq_runtime+0x770/0x770 [ 30.986925] ? find_next_bit+0x104/0x130 [ 30.991008] shrink_node+0x429/0x16a0 [ 30.994823] ? shrink_node_memcg+0x18f0/0x18f0 [ 30.999417] ? kvm_clock_read+0x25/0x30 [ 31.003389] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 31.008413] ? ktime_get_raw_ts64+0x4f0/0x4f0 [ 31.012927] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 31.017951] ? allow_direct_reclaim.part.55+0x308/0x3c0 [ 31.023315] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 31.028972] ? __cpuset_node_allowed+0x19b/0x670 [ 31.033734] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 31.039447] do_try_to_free_pages+0x3e7/0x1290 [ 31.044021] ? shrink_node+0x16a0/0x16a0 [ 31.048064] ? defer_compaction+0x4a0/0x4a0 [ 31.052372] ? lock_repin_lock+0x430/0x430 [ 31.056710] ? kasan_check_write+0x14/0x20 [ 31.060939] try_to_free_pages+0x4b2/0xb80 [ 31.065157] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.070687] ? do_try_to_free_pages+0x1290/0x1290 [ 31.075524] ? lock_acquire+0x1e4/0x540 [ 31.079490] ? bad_range+0x160/0x160 [ 31.083199] ? lock_downgrade+0x8f0/0x8f0 [ 31.087341] ? lock_release+0xa30/0xa30 [ 31.091296] ? lock_release+0xa30/0xa30 [ 31.095252] ? __isolate_free_page+0x690/0x690 [ 31.099815] ? check_same_owner+0x340/0x340 [ 31.104122] __alloc_pages_slowpath+0x953/0x2d00 [ 31.108859] ? move_freepages_block+0x732/0xe30 [ 31.113518] ? attach_entity_load_avg+0x860/0x860 [ 31.118342] ? warn_alloc+0x120/0x120 [ 31.122130] ? rb_insert_color+0x1480/0x1480 [ 31.126523] ? rb_erase+0x3550/0x3550 [ 31.130308] ? trace_hardirqs_on+0x10/0x10 [ 31.134527] ? trace_hardirqs_on+0x10/0x10 [ 31.138744] ? __next_zones_zonelist+0x75/0x190 [ 31.143396] ? trace_hardirqs_on+0x10/0x10 [ 31.147611] ? get_page_from_freelist+0x1875/0x4620 [ 31.152620] ? update_curr+0x4c8/0xc00 [ 31.156493] ? trace_hardirqs_on+0x10/0x10 [ 31.160709] ? lock_release+0xa30/0xa30 [ 31.164679] ? lock_acquire+0x1e4/0x540 [ 31.168634] ? fs_reclaim_acquire+0x20/0x20 [ 31.172937] ? lock_downgrade+0x8f0/0x8f0 [ 31.177070] ? check_same_owner+0x340/0x340 [ 31.181382] ? rcu_note_context_switch+0x730/0x730 [ 31.186307] __alloc_pages_nodemask+0xa7c/0xdb0 [ 31.190961] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 31.195973] ? lock_release+0xa30/0xa30 [ 31.199941] ? kasan_check_read+0x11/0x20 [ 31.204075] ? is_bpf_text_address+0xd7/0x170 [ 31.208560] ? kernel_text_address+0x79/0xf0 [ 31.212951] ? __kernel_text_address+0xd/0x40 [ 31.217431] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 31.222950] alloc_pages_current+0x10c/0x210 [ 31.227355] depot_save_stack+0x3f0/0x470 [ 31.231489] save_stack+0xa9/0xd0 [ 31.234936] ? save_stack+0x43/0xd0 [ 31.238543] ? kasan_kmalloc+0xc4/0xe0 [ 31.242414] ? kmem_cache_alloc_node_trace+0x150/0x770 [ 31.247674] ? vm_map_ram+0x663/0xea0 [ 31.251456] ? ion_heap_clear_pages+0x2a/0x70 [ 31.255934] ? ion_heap_sglist_zero+0x224/0x2d0 [ 31.260599] ? ion_heap_buffer_zero+0xf8/0x150 [ 31.265161] ? ion_system_heap_free+0x1d8/0x250 [ 31.269810] ? ion_buffer_destroy+0x15c/0x1c0 [ 31.274296] ? _ion_heap_freelist_drain+0x445/0x6b0 [ 31.279292] ? ion_heap_freelist_drain+0x1f/0x30 [ 31.284031] ? ion_alloc+0x39b/0xa60 [ 31.287737] ? ion_ioctl+0x216/0x41e [ 31.291434] ? do_vfs_ioctl+0x1de/0x1720 [ 31.295474] ? ksys_ioctl+0xa9/0xd0 [ 31.299084] ? __x64_sys_ioctl+0x73/0xb0 [ 31.303130] ? do_syscall_64+0x1b9/0x820 [ 31.307173] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.312522] ? debug_object_active_state+0x2f5/0x4d0 [ 31.317619] ? lock_downgrade+0x8f0/0x8f0 [ 31.321757] ? lock_acquire+0x1e4/0x540 [ 31.325723] ? fs_reclaim_acquire+0x20/0x20 [ 31.330030] ? lock_downgrade+0x8f0/0x8f0 [ 31.334171] ? lock_release+0xa30/0xa30 [ 31.338129] ? check_same_owner+0x340/0x340 [ 31.342434] ? vm_map_ram+0xad8/0xea0 [ 31.346218] ? kasan_unpoison_shadow+0x35/0x50 [ 31.350783] kasan_kmalloc+0xc4/0xe0 [ 31.354485] kmem_cache_alloc_node_trace+0x150/0x770 [ 31.359576] ? kasan_check_write+0x14/0x20 [ 31.363793] ? do_raw_spin_lock+0xc1/0x200 [ 31.368017] vm_map_ram+0x663/0xea0 [ 31.371628] ? vm_unmap_ram+0x540/0x540 [ 31.375586] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 31.380160] ? check_same_owner+0x340/0x340 [ 31.384466] ? kasan_check_write+0x14/0x20 [ 31.388680] ? do_raw_spin_lock+0xc1/0x200 [ 31.392901] ? _raw_spin_unlock+0x22/0x30 [ 31.397033] ? kfree_call_rcu+0x15/0x20 [ 31.400988] ? free_vmap_block+0xc4/0x100 [ 31.405122] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 31.410123] ? __sg_page_iter_next.part.10+0x240/0x2e0 [ 31.415379] ? vm_unmap_ram+0x394/0x540 [ 31.419336] ion_heap_clear_pages+0x2a/0x70 [ 31.423639] ion_heap_sglist_zero+0x224/0x2d0 [ 31.428120] ? ion_heap_clear_pages+0x70/0x70 [ 31.432613] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.437363] ? pagerange_is_ram_callback+0x130/0x130 [ 31.442454] ? lock_downgrade+0x8f0/0x8f0 [ 31.446603] ion_heap_buffer_zero+0xf8/0x150 [ 31.451009] ? kasan_check_read+0x11/0x20 [ 31.455161] ion_system_heap_free+0x1d8/0x250 [ 31.459643] ion_buffer_destroy+0x15c/0x1c0 [ 31.463950] _ion_heap_freelist_drain+0x445/0x6b0 [ 31.468777] ? ion_heap_deferred_free+0x670/0x670 [ 31.473603] ? kmem_cache_alloc_trace+0x318/0x780 [ 31.478428] ion_heap_freelist_drain+0x1f/0x30 [ 31.482990] ion_alloc+0x39b/0xa60 [ 31.486518] ? lock_release+0xa30/0xa30 [ 31.490476] ? ion_dma_buf_release+0x50/0x50 [ 31.494873] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 31.500404] ion_ioctl+0x216/0x41e [ 31.503936] ? ion_alloc.cold.14+0x29/0x29 [ 31.508154] ? ion_alloc.cold.14+0x29/0x29 [ 31.512373] do_vfs_ioctl+0x1de/0x1720 [ 31.516245] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 31.521762] ? ioctl_preallocate+0x300/0x300 [ 31.526164] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.531692] ? __fget_light+0x2f7/0x440 [ 31.535650] ? __handle_mm_fault+0x4480/0x4480 [ 31.540215] ? fget_raw+0x20/0x20 [ 31.543650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.549173] ? __do_page_fault+0x449/0xe50 [ 31.553388] ? putname+0xf7/0x130 [ 31.556826] ? mm_fault_error+0x380/0x380 [ 31.560956] ? security_file_ioctl+0x94/0xc0 [ 31.565349] ksys_ioctl+0xa9/0xd0 [ 31.568883] __x64_sys_ioctl+0x73/0xb0 [ 31.572755] do_syscall_64+0x1b9/0x820 [ 31.576624] ? syscall_return_slowpath+0x5e0/0x5e0 [ 31.581535] ? syscall_return_slowpath+0x31d/0x5e0 [ 31.586459] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 31.591462] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 31.596980] ? prepare_exit_to_usermode+0x291/0x3b0 [ 31.601980] ? perf_trace_sys_enter+0xb10/0xb10 [ 31.606630] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.611457] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.616642] RIP: 0033:0x4419b9 [ 31.619808] Code: e8 ec b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 31.638984] RSP: 002b:00007ffc6766d608 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 31.646679] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004419b9 [ 31.653931] RDX: 0000000020000500 RSI: 00000000c0184900 RDI: 0000000000000003 [ 31.661188] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 31.668453] R10: 00000000019d9880 R11: 0000000000000213 R12: 000000000000004e [ 31.675703] R13: 0000000000007802 R14: 0000000000000000 R15: 0000000000000000 [ 31.682959] [ 31.684568] Allocated by task 4461: [ 31.688182] save_stack+0x43/0xd0 [ 31.691617] kasan_kmalloc+0xc4/0xe0 [ 31.695312] __kmalloc_node+0x47/0x70 [ 31.699094] kvmalloc_node+0x65/0xf0 [ 31.702788] mem_cgroup_css_online+0x169/0x3c0 [ 31.707356] online_css+0x10c/0x350 [ 31.710966] cgroup_apply_control_enable+0x777/0xe90 [ 31.716052] cgroup_mkdir+0x88a/0x1170 [ 31.719920] kernfs_iop_mkdir+0x159/0x1e0 [ 31.724068] vfs_mkdir+0x42e/0x6b0 [ 31.727589] do_mkdirat+0x27b/0x310 [ 31.731199] __x64_sys_mkdir+0x5c/0x80 [ 31.735068] do_syscall_64+0x1b9/0x820 [ 31.738940] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.744113] [ 31.745718] Freed by task 2869: [ 31.748979] save_stack+0x43/0xd0 [ 31.752416] __kasan_slab_free+0x11a/0x170 [ 31.756642] kasan_slab_free+0xe/0x10 [ 31.760426] kfree+0xd9/0x260 [ 31.763518] single_release+0x8f/0xb0 [ 31.767316] __fput+0x35d/0x930 [ 31.770585] ____fput+0x15/0x20 [ 31.773848] task_work_run+0x1ec/0x2a0 [ 31.777720] exit_to_usermode_loop+0x313/0x370 [ 31.782292] do_syscall_64+0x6be/0x820 [ 31.786163] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.791328] [ 31.792937] The buggy address belongs to the object at ffff8801d9111d00 [ 31.792937] which belongs to the cache kmalloc-32 of size 32 [ 31.805403] The buggy address is located 16 bytes inside of [ 31.805403] 32-byte region [ffff8801d9111d00, ffff8801d9111d20) [ 31.817093] The buggy address belongs to the page: [ 31.822006] page:ffffea0007644440 count:1 mapcount:0 mapping:ffff8801da8001c0 index:0xffff8801d9111fc1 [ 31.832439] flags: 0x2fffc0000000100(slab) [ 31.836663] raw: 02fffc0000000100 ffffea0007604c88 ffffea0007616488 ffff8801da8001c0 [ 31.844530] raw: ffff8801d9111fc1 ffff8801d9111000 000000010000002d 0000000000000000 [ 31.852397] page dumped because: kasan: bad access detected [ 31.858082] [ 31.859697] Memory state around the buggy address: [ 31.864606] ffff8801d9111c00: 00 04 fc fc fc fc fc fc 00 fc fc fc fc fc fc fc [ 31.871944] ffff8801d9111c80: 00 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 31.879281] >ffff8801d9111d00: 00 00 05 fc fc fc fc fc fb fb fb fb fc fc fc fc [ 31.886615] ^ [ 31.890483] ffff8801d9111d80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 31.897821] ffff8801d9111e00: 00 01 fc fc fc fc fc fc 00 01 fc fc fc fc fc fc [ 31.905153] ================================================================== [ 31.912870] Kernel panic - not syncing: panic_on_warn set ... [ 31.912870] [ 31.920250] CPU: 0 PID: 4542 Comm: syz-executor559 Tainted: G B 4.18.0-rc3-next-20180706+ #1 [ 31.930132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.939483] Call Trace: [ 31.942062] dump_stack+0x1c9/0x2b4 [ 31.945695] ? dump_stack_print_info.cold.2+0x52/0x52 [ 31.950871] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.955627] panic+0x238/0x4e7 [ 31.958804] ? add_taint.cold.5+0x16/0x16 [ 31.962936] ? do_raw_spin_unlock+0xa7/0x2f0 [ 31.967326] ? do_raw_spin_unlock+0xa7/0x2f0 [ 31.971719] ? find_first_bit+0xf7/0x100 [ 31.975762] kasan_end_report+0x47/0x4f [ 31.979727] kasan_report.cold.7+0x76/0x30d [ 31.984035] __asan_report_load8_noabort+0x14/0x20 [ 31.988949] find_first_bit+0xf7/0x100 [ 31.992821] shrink_slab+0x5d0/0xdb0 [ 31.996528] ? shrink_node_memcg+0xc91/0x18f0 [ 32.001016] ? unregister_memcg_shrinker.isra.39+0x50/0x50 [ 32.006623] ? shrink_active_list+0x1830/0x1830 [ 32.011277] ? cgroup_rstat_updated+0xe6/0x470 [ 32.015846] ? trace_hardirqs_on+0x10/0x10 [ 32.020070] ? __account_cfs_rq_runtime+0x770/0x770 [ 32.025070] ? find_next_bit+0x104/0x130 [ 32.029125] shrink_node+0x429/0x16a0 [ 32.032916] ? shrink_node_memcg+0x18f0/0x18f0 [ 32.037492] ? kvm_clock_read+0x25/0x30 [ 32.041450] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.046450] ? ktime_get_raw_ts64+0x4f0/0x4f0 [ 32.050938] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 32.055936] ? allow_direct_reclaim.part.55+0x308/0x3c0 [ 32.061281] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.066800] ? __cpuset_node_allowed+0x19b/0x670 [ 32.071549] ? cpuset_nodemask_valid_mems_allowed+0x90/0x90 [ 32.077256] do_try_to_free_pages+0x3e7/0x1290 [ 32.081835] ? shrink_node+0x16a0/0x16a0 [ 32.085880] ? defer_compaction+0x4a0/0x4a0 [ 32.090184] ? lock_repin_lock+0x430/0x430 [ 32.094403] ? kasan_check_write+0x14/0x20 [ 32.098633] try_to_free_pages+0x4b2/0xb80 [ 32.102854] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.108375] ? do_try_to_free_pages+0x1290/0x1290 [ 32.113211] ? lock_acquire+0x1e4/0x540 [ 32.117165] ? bad_range+0x160/0x160 [ 32.120875] ? lock_downgrade+0x8f0/0x8f0 [ 32.125009] ? lock_release+0xa30/0xa30 [ 32.128966] ? lock_release+0xa30/0xa30 [ 32.132920] ? __isolate_free_page+0x690/0x690 [ 32.137497] ? check_same_owner+0x340/0x340 [ 32.141816] __alloc_pages_slowpath+0x953/0x2d00 [ 32.146566] ? move_freepages_block+0x732/0xe30 [ 32.151224] ? attach_entity_load_avg+0x860/0x860 [ 32.156049] ? warn_alloc+0x120/0x120 [ 32.159835] ? rb_insert_color+0x1480/0x1480 [ 32.164240] ? rb_erase+0x3550/0x3550 [ 32.168046] ? trace_hardirqs_on+0x10/0x10 [ 32.172264] ? trace_hardirqs_on+0x10/0x10 [ 32.176484] ? __next_zones_zonelist+0x75/0x190 [ 32.181142] ? trace_hardirqs_on+0x10/0x10 [ 32.185378] ? get_page_from_freelist+0x1875/0x4620 [ 32.190375] ? update_curr+0x4c8/0xc00 [ 32.194247] ? trace_hardirqs_on+0x10/0x10 [ 32.198462] ? lock_release+0xa30/0xa30 [ 32.202429] ? lock_acquire+0x1e4/0x540 [ 32.206388] ? fs_reclaim_acquire+0x20/0x20 [ 32.210690] ? lock_downgrade+0x8f0/0x8f0 [ 32.214821] ? check_same_owner+0x340/0x340 [ 32.219128] ? rcu_note_context_switch+0x730/0x730 [ 32.224045] __alloc_pages_nodemask+0xa7c/0xdb0 [ 32.228698] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 32.233710] ? lock_release+0xa30/0xa30 [ 32.237679] ? kasan_check_read+0x11/0x20 [ 32.241811] ? is_bpf_text_address+0xd7/0x170 [ 32.246291] ? kernel_text_address+0x79/0xf0 [ 32.250692] ? __kernel_text_address+0xd/0x40 [ 32.255181] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 32.260703] alloc_pages_current+0x10c/0x210 [ 32.265099] depot_save_stack+0x3f0/0x470 [ 32.269231] save_stack+0xa9/0xd0 [ 32.272669] ? save_stack+0x43/0xd0 [ 32.276278] ? kasan_kmalloc+0xc4/0xe0 [ 32.280146] ? kmem_cache_alloc_node_trace+0x150/0x770 [ 32.285405] ? vm_map_ram+0x663/0xea0 [ 32.289276] ? ion_heap_clear_pages+0x2a/0x70 [ 32.293752] ? ion_heap_sglist_zero+0x224/0x2d0 [ 32.298404] ? ion_heap_buffer_zero+0xf8/0x150 [ 32.302968] ? ion_system_heap_free+0x1d8/0x250 [ 32.307622] ? ion_buffer_destroy+0x15c/0x1c0 [ 32.312099] ? _ion_heap_freelist_drain+0x445/0x6b0 [ 32.317095] ? ion_heap_freelist_drain+0x1f/0x30 [ 32.321833] ? ion_alloc+0x39b/0xa60 [ 32.325530] ? ion_ioctl+0x216/0x41e [ 32.329225] ? do_vfs_ioctl+0x1de/0x1720 [ 32.333265] ? ksys_ioctl+0xa9/0xd0 [ 32.336873] ? __x64_sys_ioctl+0x73/0xb0 [ 32.340918] ? do_syscall_64+0x1b9/0x820 [ 32.344962] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 32.350326] ? debug_object_active_state+0x2f5/0x4d0 [ 32.355543] ? lock_downgrade+0x8f0/0x8f0 [ 32.359689] ? lock_acquire+0x1e4/0x540 [ 32.363655] ? fs_reclaim_acquire+0x20/0x20 [ 32.367957] ? lock_downgrade+0x8f0/0x8f0 [ 32.372092] ? lock_release+0xa30/0xa30 [ 32.376053] ? check_same_owner+0x340/0x340 [ 32.380356] ? vm_map_ram+0xad8/0xea0 [ 32.384140] ? kasan_unpoison_shadow+0x35/0x50 [ 32.388715] kasan_kmalloc+0xc4/0xe0 [ 32.392416] kmem_cache_alloc_node_trace+0x150/0x770 [ 32.397511] ? kasan_check_write+0x14/0x20 [ 32.401730] ? do_raw_spin_lock+0xc1/0x200 [ 32.405948] vm_map_ram+0x663/0xea0 [ 32.409561] ? vm_unmap_ram+0x540/0x540 [ 32.413515] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 32.418082] ? check_same_owner+0x340/0x340 [ 32.422386] ? kasan_check_write+0x14/0x20 [ 32.426614] ? do_raw_spin_lock+0xc1/0x200 [ 32.430830] ? _raw_spin_unlock+0x22/0x30 [ 32.434960] ? kfree_call_rcu+0x15/0x20 [ 32.438920] ? free_vmap_block+0xc4/0x100 [ 32.443061] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 32.448154] ? __sg_page_iter_next.part.10+0x240/0x2e0 [ 32.453417] ? vm_unmap_ram+0x394/0x540 [ 32.457377] ion_heap_clear_pages+0x2a/0x70 [ 32.461684] ion_heap_sglist_zero+0x224/0x2d0 [ 32.466162] ? ion_heap_clear_pages+0x70/0x70 [ 32.470642] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.475400] ? pagerange_is_ram_callback+0x130/0x130 [ 32.480489] ? lock_downgrade+0x8f0/0x8f0 [ 32.484619] ion_heap_buffer_zero+0xf8/0x150 [ 32.489018] ? kasan_check_read+0x11/0x20 [ 32.493149] ion_system_heap_free+0x1d8/0x250 [ 32.497639] ion_buffer_destroy+0x15c/0x1c0 [ 32.501955] _ion_heap_freelist_drain+0x445/0x6b0 [ 32.506789] ? ion_heap_deferred_free+0x670/0x670 [ 32.511618] ? kmem_cache_alloc_trace+0x318/0x780 [ 32.516447] ion_heap_freelist_drain+0x1f/0x30 [ 32.521017] ion_alloc+0x39b/0xa60 [ 32.524543] ? lock_release+0xa30/0xa30 [ 32.528504] ? ion_dma_buf_release+0x50/0x50 [ 32.532902] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 32.538421] ion_ioctl+0x216/0x41e [ 32.541953] ? ion_alloc.cold.14+0x29/0x29 [ 32.546175] ? ion_alloc.cold.14+0x29/0x29 [ 32.550394] do_vfs_ioctl+0x1de/0x1720 [ 32.554267] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 32.559785] ? ioctl_preallocate+0x300/0x300 [ 32.564174] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.569705] ? __fget_light+0x2f7/0x440 [ 32.573663] ? __handle_mm_fault+0x4480/0x4480 [ 32.578238] ? fget_raw+0x20/0x20 [ 32.581680] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.587200] ? __do_page_fault+0x449/0xe50 [ 32.591415] ? putname+0xf7/0x130 [ 32.594851] ? mm_fault_error+0x380/0x380 [ 32.598982] ? security_file_ioctl+0x94/0xc0 [ 32.603385] ksys_ioctl+0xa9/0xd0 [ 32.606822] __x64_sys_ioctl+0x73/0xb0 [ 32.610695] do_syscall_64+0x1b9/0x820 [ 32.614565] ? syscall_return_slowpath+0x5e0/0x5e0 [ 32.619478] ? syscall_return_slowpath+0x31d/0x5e0 [ 32.624404] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 32.629402] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.634920] ? prepare_exit_to_usermode+0x291/0x3b0 [ 32.639921] ? perf_trace_sys_enter+0xb10/0xb10 [ 32.644572] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.649411] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 32.654582] RIP: 0033:0x4419b9 [ 32.657749] Code: e8 ec b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 32.676920] RSP: 002b:00007ffc6766d608 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 32.684617] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004419b9 [ 32.691872] RDX: 0000000020000500 RSI: 00000000c0184900 RDI: 0000000000000003 [ 32.699121] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 32.706373] R10: 00000000019d9880 R11: 0000000000000213 R12: 000000000000004e [ 32.713622] R13: 0000000000007802 R14: 0000000000000000 R15: 0000000000000000 [ 32.721342] Dumping ftrace buffer: [ 32.724872] (ftrace buffer empty) [ 32.728557] Kernel Offset: disabled [ 32.732163] Rebooting in 86400 seconds..