Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 34.059961] audit: type=1800 audit(1544105536.217:33): pid=6017 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 34.080953] audit: type=1800 audit(1544105536.217:34): pid=6017 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.439939] audit: type=1400 audit(1544105537.587:35): avc: denied { map } for pid=6192 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts. executing program [ 42.157300] audit: type=1400 audit(1544105544.307:36): avc: denied { map } for pid=6206 comm="syz-executor365" path="/root/syz-executor365027684" 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 [ 42.162943] WARNING: CPU: 1 PID: 6206 at mm/mempolicy.c:1745 alloc_pages_vma+0x1bd/0x4a0 [ 42.191886] Kernel panic - not syncing: panic_on_warn set ... [ 42.197802] CPU: 1 PID: 6206 Comm: syz-executor365 Not tainted 4.20.0-rc5+ #144 [ 42.205253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.214589] Call Trace: [ 42.217163] dump_stack+0x244/0x39d [ 42.220793] ? dump_stack_print_info.cold.1+0x20/0x20 [ 42.225969] panic+0x2ad/0x55c [ 42.229176] ? add_taint.cold.5+0x16/0x16 [ 42.233324] ? __warn.cold.8+0x5/0x45 [ 42.237108] ? __warn+0xe8/0x1d0 [ 42.240460] ? alloc_pages_vma+0x1bd/0x4a0 [ 42.244678] __warn.cold.8+0x20/0x45 [ 42.248370] ? rcu_softirq_qs+0x20/0x20 [ 42.252328] ? alloc_pages_vma+0x1bd/0x4a0 [ 42.256548] report_bug+0x254/0x2d0 [ 42.260160] do_error_trap+0x11b/0x200 [ 42.264047] do_invalid_op+0x36/0x40 [ 42.267744] ? alloc_pages_vma+0x1bd/0x4a0 [ 42.271965] invalid_op+0x14/0x20 [ 42.275428] RIP: 0010:alloc_pages_vma+0x1bd/0x4a0 [ 42.280255] Code: 5f 5d c3 e8 35 2f bf ff 45 89 ec 31 ff 41 81 e4 00 00 04 00 44 89 e6 e8 31 30 bf ff 45 85 e4 0f 84 50 ff ff ff e8 13 2f bf ff <0f> 0b e9 44 ff ff ff e8 07 2f bf ff e8 22 5e ff ff 48 89 c3 e9 6b [ 42.299142] RSP: 0018:ffff8881b4baf188 EFLAGS: 00010293 [ 42.304494] RAX: ffff8881d31086c0 RBX: ffff8881da96f000 RCX: ffffffff81c06c9f [ 42.311764] RDX: 0000000000000000 RSI: ffffffff81c06cad RDI: 0000000000000005 [ 42.319032] RBP: ffff8881b4baf1c8 R08: ffff8881d31086c0 R09: ffffed103b5e5b5f [ 42.326282] R10: 0000000000000002 R11: ffff8881daf2dafb R12: 0000000000040000 [ 42.333534] R13: 00000000000742ca R14: ffff8881da96f008 R15: 0000000000000002 [ 42.340794] ? alloc_pages_vma+0x1af/0x4a0 [ 42.345033] ? alloc_pages_vma+0x1bd/0x4a0 [ 42.349258] ? alloc_pages_vma+0x1bd/0x4a0 [ 42.353486] do_huge_pmd_anonymous_page+0x59e/0x2030 [ 42.358580] ? mark_held_locks+0x130/0x130 [ 42.362802] ? __thp_get_unmapped_area+0x180/0x180 [ 42.367728] ? ptep_set_access_flags+0x1a0/0x1a0 [ 42.372486] ? print_usage_bug+0xc0/0xc0 [ 42.376530] ? print_usage_bug+0xc0/0xc0 [ 42.380575] ? print_usage_bug+0xc0/0xc0 [ 42.384619] ? touch_pmd+0x71/0xa0 [ 42.388146] ? kasan_check_write+0x14/0x20 [ 42.392362] ? follow_trans_huge_pmd+0x6c1/0x11a0 [ 42.397186] ? huge_pmd_set_accessed+0x4b0/0x4b0 [ 42.401929] ? __lock_acquire+0x62f/0x4c20 [ 42.406162] ? __lock_acquire+0x62f/0x4c20 [ 42.410381] ? mark_held_locks+0x130/0x130 [ 42.414620] ? mark_held_locks+0x130/0x130 [ 42.418841] ? mark_held_locks+0x130/0x130 [ 42.423065] ? follow_page_mask+0x1bda/0x2160 [ 42.427548] __handle_mm_fault+0x3c91/0x5be0 [ 42.431942] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 42.436765] ? pmd_huge+0x140/0x140 [ 42.440378] ? print_usage_bug+0xc0/0xc0 [ 42.444424] ? _raw_spin_unlock+0x2c/0x50 [ 42.448573] ? follow_page_mask+0x18e/0x2160 [ 42.452985] ? zap_class+0x640/0x640 [ 42.456682] ? zap_class+0x640/0x640 [ 42.460385] ? find_held_lock+0x36/0x1c0 [ 42.464434] ? handle_mm_fault+0x42a/0xc70 [ 42.468649] ? lock_downgrade+0x900/0x900 [ 42.472799] ? check_preemption_disabled+0x48/0x280 [ 42.477800] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 42.482716] ? kasan_check_read+0x11/0x20 [ 42.486846] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 42.492106] ? rcu_softirq_qs+0x20/0x20 [ 42.496076] ? trace_hardirqs_off_caller+0x310/0x310 [ 42.501162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 42.506678] ? check_preemption_disabled+0x48/0x280 [ 42.511678] handle_mm_fault+0x54f/0xc70 [ 42.515741] ? __handle_mm_fault+0x5be0/0x5be0 [ 42.520324] ? find_vma+0x34/0x190 [ 42.523848] __do_page_fault+0x5e8/0xe60 [ 42.527897] do_page_fault+0xf2/0x7e0 [ 42.531680] ? vmalloc_sync_all+0x30/0x30 [ 42.535823] ? error_entry+0x76/0xd0 [ 42.539520] ? trace_hardirqs_off_caller+0xbb/0x310 [ 42.544521] ? find_held_lock+0x36/0x1c0 [ 42.548567] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.553395] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.558427] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.563254] page_fault+0x1e/0x30 [ 42.566704] RIP: 0010:__clear_user+0x3b/0x70 [ 42.571096] Code: f9 be 13 00 00 00 48 c7 c7 a0 47 d8 88 e8 ad 28 d8 f9 0f 1f 00 48 89 d8 48 c1 eb 03 4c 89 e7 83 e0 07 48 89 d9 48 85 c9 74 0f <48> c7 07 00 00 00 00 48 83 c7 08 ff c9 75 f1 48 89 c1 85 c9 74 0a [ 42.590020] RSP: 0018:ffff8881b4bafbc8 EFLAGS: 00010206 [ 42.595364] RAX: 0000000000000000 RBX: 000000000000000f RCX: 000000000000000f [ 42.602618] RDX: 0000000000000000 RSI: ffffffff81b1b3d3 RDI: 00000000203e8008 [ 42.609885] RBP: ffff8881b4bafbd8 R08: 1ffff11036975f55 R09: 0000000000000008 [ 42.617135] R10: 0000000000000001 R11: ffff8881d31086c0 R12: 00000000203e8008 [ 42.624386] R13: 00000000203e8008 R14: 00007ffffffff000 R15: 0000000000000000 [ 42.631645] ? __might_fault+0x1a3/0x1e0 [ 42.635688] ? __clear_user+0x23/0x70 [ 42.639470] clear_user+0xb1/0xe0 [ 42.642909] kernel_get_mempolicy+0x292/0x1100 [ 42.647477] ? sp_free+0x60/0x60 [ 42.650829] ? __mpol_equal+0x370/0x370 [ 42.654785] ? up_read+0x225/0x2c0 [ 42.658307] ? up_read_non_owner+0x100/0x100 [ 42.662718] ? do_syscall_64+0x9a/0x820 [ 42.666681] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 42.671261] ? trace_hardirqs_on+0xbd/0x310 [ 42.675609] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.680955] ? trace_hardirqs_off_caller+0x310/0x310 [ 42.686046] __x64_sys_get_mempolicy+0xbe/0x150 [ 42.690715] do_syscall_64+0x1b9/0x820 [ 42.694603] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.699952] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.704870] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.709712] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.714731] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.719733] ? prepare_exit_to_usermode+0x291/0x3b0 [ 42.724772] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.729616] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.734800] RIP: 0033:0x440009 [ 42.737983] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 42.756864] RSP: 002b:00007fffa9ea73a8 EFLAGS: 00000217 ORIG_RAX: 00000000000000ef [ 42.764552] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 42.771805] RDX: 0000000000000401 RSI: 00000000203e8000 RDI: 0000000000000000 [ 42.779056] RBP: 00000000006ca018 R08: 0000000000000003 R09: 0000000000000000 [ 42.786305] R10: 00000000208d3000 R11: 0000000000000217 R12: 0000000000401890 [ 42.793554] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 42.801962] Kernel Offset: disabled [ 42.805664] Rebooting in 86400 seconds..