Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 30.044038] audit: type=1800 audit(1539475880.540:33): pid=5322 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 [ 30.066940] audit: type=1800 audit(1539475880.540:34): pid=5322 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 [ 30.681574] audit: type=1400 audit(1539475881.180:35): avc: denied { map } for pid=5499 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.434675] audit: type=1400 audit(1539475887.930:36): avc: denied { map } for pid=5513 comm="syz-executor788" path="/root/syz-executor788432693" 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 [ 37.442419] kasan: CONFIG_KASAN_INLINE enabled [ 37.465870] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.473357] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.479579] CPU: 1 PID: 5513 Comm: syz-executor788 Not tainted 4.19.0-rc7+ #61 [ 37.486918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.496262] RIP: 0010:rb_erase+0x306/0x3710 [ 37.500568] Code: c7 81 28 01 00 00 f2 f2 f2 f2 c7 81 2c 01 00 00 00 f2 f2 f2 48 89 f9 65 48 8b 1c 25 28 00 00 00 48 89 5d d0 31 db 48 c1 e9 03 <42> 80 3c 01 00 0f 85 41 1c 00 00 4c 8d 48 10 4c 8b 78 08 48 b9 00 [ 37.519453] RSP: 0018:ffff8801c4eee918 EFLAGS: 00010202 [ 37.524800] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.532051] RDX: 1ffff100389ddd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 37.539316] RBP: ffff8801c4eef320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 37.546566] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b37863f0 [ 37.553818] R13: dffffc0000000000 R14: ffff8801c4eef2f8 R15: ffff8801c4eef438 [ 37.561072] FS: 0000000002561880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.569278] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.575136] CR2: 0000000020000080 CR3: 00000001cc44e000 CR4: 00000000001406e0 [ 37.582391] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.589641] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.596887] Call Trace: [ 37.599459] ? lockdep_on+0x50/0x50 [ 37.603069] ? rb_insert_color+0x1460/0x1460 [ 37.607461] ? noop_count+0x40/0x40 [ 37.611067] ? lock_pin_lock+0x350/0x350 [ 37.615109] ? noop_count+0x40/0x40 [ 37.618720] ? kasan_check_read+0x11/0x20 [ 37.622854] ? noop_count+0x40/0x40 [ 37.626461] ? noop_count+0x40/0x40 [ 37.630087] ? lock_pin_lock+0x350/0x350 [ 37.634134] ? mark_held_locks+0x130/0x130 [ 37.638355] ? check_usage_forwards+0x3e0/0x3e0 [ 37.643009] ? __bfs+0x385/0x7a0 [ 37.646354] ? noop_count+0x40/0x40 [ 37.649980] ? check_usage+0x1a9/0x790 [ 37.653853] ? lock_pin_lock+0x350/0x350 [ 37.657909] ? check_usage_forwards+0x3e0/0x3e0 [ 37.662559] ? __bfs+0x385/0x7a0 [ 37.665914] ? __lock_acquire+0x7ec/0x4ec0 [ 37.670134] ? lockdep_on+0x50/0x50 [ 37.673757] ? lock_pin_lock+0x350/0x350 [ 37.677807] ? mark_held_locks+0x130/0x130 [ 37.682033] ? kasan_check_read+0x11/0x20 [ 37.686163] ? __lock_acquire+0x2881/0x4ec0 [ 37.690472] ? mark_held_locks+0x130/0x130 [ 37.694686] ? print_usage_bug+0xc0/0xc0 [ 37.698732] ? _raw_spin_unlock+0x2c/0x50 [ 37.702869] ? graph_lock+0x170/0x170 [ 37.706666] ? ext4_exit_mballoc+0xc0/0xc0 [ 37.710891] ? __lock_acquire+0x7ec/0x4ec0 [ 37.715112] ? find_held_lock+0x36/0x1c0 [ 37.719156] ? mark_held_locks+0x130/0x130 [ 37.723372] ? lock_downgrade+0x900/0x900 [ 37.727503] ? ext4_es_scan+0x960/0x960 [ 37.731459] ? lock_release+0x970/0x970 [ 37.735415] ? do_raw_write_trylock+0x1c0/0x1c0 [ 37.740065] ? kasan_check_write+0x14/0x20 [ 37.744282] ? lock_acquire+0x1ed/0x520 [ 37.748240] ? integrity_inode_free+0x77/0x320 [ 37.752805] ? ext4_es_remove_extent+0x151/0x500 [ 37.757544] ? lock_release+0x970/0x970 [ 37.761501] ? kasan_check_write+0x14/0x20 [ 37.765731] ? do_raw_write_lock+0xbd/0x1b0 [ 37.770037] integrity_inode_free+0x12f/0x320 [ 37.774515] security_inode_free+0x19/0x90 [ 37.778734] __destroy_inode+0x328/0x820 [ 37.782775] ? generic_update_time+0x450/0x450 [ 37.787338] ? evict+0x5d8/0x980 [ 37.790699] ? lock_downgrade+0x900/0x900 [ 37.794830] ? __inode_wait_for_writeback+0x2cf/0x380 [ 37.800010] destroy_inode+0xda/0x200 [ 37.803792] ? __destroy_inode+0x820/0x820 [ 37.808024] ? kasan_check_write+0x14/0x20 [ 37.812241] ? do_raw_spin_lock+0xc1/0x200 [ 37.816456] evict+0x5e0/0x980 [ 37.819652] ? destroy_inode+0x200/0x200 [ 37.823692] ? iput+0x671/0xa90 [ 37.826951] ? lock_downgrade+0x900/0x900 [ 37.831080] ? kasan_check_read+0x11/0x20 [ 37.835209] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.839776] ? lock_downgrade+0x900/0x900 [ 37.843928] iput+0x679/0xa90 [ 37.847018] ? inode_add_lru+0x2a0/0x2a0 [ 37.851059] ? up_write+0x7b/0x220 [ 37.854580] ? up_read+0x110/0x110 [ 37.858107] ? up_read+0x110/0x110 [ 37.861635] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.867152] ? check_preemption_disabled+0x48/0x200 [ 37.872152] ext4_ioctl+0x236f/0x4210 [ 37.875937] ? ext4_ioctl_group_add+0x560/0x560 [ 37.880593] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.886371] ? kasan_check_read+0x11/0x20 [ 37.890500] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.895774] ? rcu_bh_qs+0xc0/0xc0 [ 37.899301] ? unwind_dump+0x190/0x190 [ 37.903172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.908693] ? avc_has_extended_perms+0xab2/0x15a0 [ 37.913636] ? convert_from_fxsr+0x4a7/0x7d0 [ 37.918028] ? avc_ss_reset+0x190/0x190 [ 37.922002] ? save_stack+0xa9/0xd0 [ 37.925627] ? save_stack+0x43/0xd0 [ 37.929236] ? __kasan_slab_free+0x102/0x150 [ 37.933626] ? kasan_slab_free+0xe/0x10 [ 37.937594] ? kmem_cache_free+0x83/0x290 [ 37.941741] ? putname+0xf2/0x130 [ 37.945176] ? do_sys_open+0x54d/0x700 [ 37.949047] ? __x64_sys_openat+0x9d/0x100 [ 37.953267] ? do_syscall_64+0x1b9/0x820 [ 37.957315] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.962674] ? ___might_sleep+0x1ed/0x300 [ 37.966827] ? arch_local_save_flags+0x40/0x40 [ 37.971397] ? kasan_check_write+0x14/0x20 [ 37.975619] ? trace_hardirqs_off+0xb8/0x310 [ 37.980014] ? ext4_ioctl_group_add+0x560/0x560 [ 37.984662] do_vfs_ioctl+0x1de/0x1720 [ 37.988535] ? ioctl_preallocate+0x300/0x300 [ 37.992926] ? selinux_file_mprotect+0x620/0x620 [ 37.997663] ? path_openat+0x3981/0x5160 [ 38.001770] ? rcu_read_lock_sched_held+0x108/0x120 [ 38.006802] ? kmem_cache_free+0x24f/0x290 [ 38.011017] ? putname+0xf7/0x130 [ 38.014453] ? do_syscall_64+0x9a/0x820 [ 38.018412] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.023932] ? security_file_ioctl+0x94/0xc0 [ 38.028322] ksys_ioctl+0xa9/0xd0 [ 38.031770] __x64_sys_ioctl+0x73/0xb0 [ 38.035638] do_syscall_64+0x1b9/0x820 [ 38.039517] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.044870] ? syscall_return_slowpath+0x5e0/0x5e0 [ 38.049782] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.054611] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.059628] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.064630] ? prepare_exit_to_usermode+0x291/0x3b0 [ 38.069634] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.074460] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.079633] RIP: 0033:0x440009 [ 38.082805] 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 [ 38.101702] RSP: 002b:00007fff5bb6d648 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 38.109391] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 38.116639] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 38.123891] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 38.131143] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 38.138391] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 38.145641] Modules linked in: [ 38.148867] ---[ end trace 308c24848aba6bf4 ]--- [ 38.153640] RIP: 0010:rb_erase+0x306/0x3710 [ 38.158020] Code: c7 81 28 01 00 00 f2 f2 f2 f2 c7 81 2c 01 00 00 00 f2 f2 f2 48 89 f9 65 48 8b 1c 25 28 00 00 00 48 89 5d d0 31 db 48 c1 e9 03 <42> 80 3c 01 00 0f 85 41 1c 00 00 4c 8d 48 10 4c 8b 78 08 48 b9 00 [ 38.176946] RSP: 0018:ffff8801c4eee918 EFLAGS: 00010202 [ 38.182322] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.189638] RDX: 1ffff100389ddd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 38.196937] RBP: ffff8801c4eef320 R08: dffffc0000000000 R09: fffffbfff12d6990 [ 38.204234] R10: fffffbfff12d6990 R11: ffffffff896b4c83 R12: ffff8801b37863f0 [ 38.211519] R13: dffffc0000000000 R14: ffff8801c4eef2f8 R15: ffff8801c4eef438 [ 38.218820] FS: 0000000002561880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 38.227080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.232983] CR2: 0000000020000080 CR3: 00000001cc44e000 CR4: 00000000001406e0 [ 38.240266] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.247571] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.254851] Kernel panic - not syncing: Fatal exception [ 38.261054] Kernel Offset: disabled [ 38.264672] Rebooting in 86400 seconds..