[info] Using makefile-style concurrent boot in runlevel 2. [ 23.195405] audit: type=1800 audit(1537917504.659:21): pid=5399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.230443] audit: type=1800 audit(1537917504.669:22): pid=5399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.952265] kasan: CONFIG_KASAN_INLINE enabled [ 32.956917] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.964321] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 32.970558] CPU: 1 PID: 5553 Comm: syz-executor715 Not tainted 4.19.0-rc5-next-20180925+ #80 [ 32.979112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.988456] RIP: 0010:rb_erase+0x306/0x3710 [ 32.992765] 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 [ 33.011695] RSP: 0018:ffff8801d7e86918 EFLAGS: 00010202 [ 33.017039] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 33.024289] RDX: 1ffff1003afd0d2b RSI: ffffffff8b5a4340 RDI: 0000000000000008 [ 33.031543] RBP: ffff8801d7e87320 R08: dffffc0000000000 R09: fffffbfff135d930 [ 33.038794] R10: fffffbfff135d930 R11: ffffffff89aec983 R12: ffff8801b6f6f970 [ 33.046046] R13: dffffc0000000000 R14: ffff8801d7e872f8 R15: ffff8801d7e87438 [ 33.053299] FS: 00000000017b3880(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 [ 33.061505] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.067365] CR2: 0000000020000700 CR3: 00000001d96fe000 CR4: 00000000001406e0 [ 33.074634] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.081889] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.089318] Call Trace: [ 33.091893] ? lockdep_on+0x50/0x50 [ 33.095504] ? rb_insert_color+0x1460/0x1460 [ 33.099900] ? noop_count+0x40/0x40 [ 33.103510] ? lock_pin_lock+0x350/0x350 [ 33.107563] ? noop_count+0x40/0x40 [ 33.111180] ? kasan_check_read+0x11/0x20 [ 33.115309] ? noop_count+0x40/0x40 [ 33.118918] ? noop_count+0x40/0x40 [ 33.122524] ? lock_pin_lock+0x350/0x350 [ 33.126568] ? mark_held_locks+0x130/0x130 [ 33.130784] ? check_usage_forwards+0x3e0/0x3e0 [ 33.135434] ? __bfs+0x385/0x7a0 [ 33.138782] ? noop_count+0x40/0x40 [ 33.142393] ? check_usage+0x1a9/0x790 [ 33.146259] ? lock_pin_lock+0x350/0x350 [ 33.150307] ? check_usage_forwards+0x3e0/0x3e0 [ 33.154957] ? __bfs+0x385/0x7a0 [ 33.158323] ? __lock_acquire+0x7ec/0x4ec0 [ 33.162549] ? lockdep_on+0x50/0x50 [ 33.166154] ? lock_pin_lock+0x350/0x350 [ 33.170209] ? mark_held_locks+0x130/0x130 [ 33.174428] ? kasan_check_read+0x11/0x20 [ 33.178559] ? __lock_acquire+0x2881/0x4ec0 [ 33.182867] ? mark_held_locks+0x130/0x130 [ 33.187083] ? print_usage_bug+0xc0/0xc0 [ 33.191129] ? _raw_spin_unlock+0x2c/0x50 [ 33.195263] ? graph_lock+0x170/0x170 [ 33.199045] ? ext4_exit_mballoc+0xc0/0xc0 [ 33.203264] ? __lock_acquire+0x7ec/0x4ec0 [ 33.207479] ? find_held_lock+0x36/0x1c0 [ 33.211526] ? mark_held_locks+0x130/0x130 [ 33.215754] ? lock_downgrade+0x900/0x900 [ 33.219882] ? ext4_es_scan+0x950/0x950 [ 33.223842] ? do_raw_write_trylock+0x1c0/0x1c0 [ 33.228495] ? kasan_check_write+0x14/0x20 [ 33.232730] ? lock_acquire+0x1ed/0x520 [ 33.236689] ? integrity_inode_free+0x77/0x320 [ 33.241255] ? ext4_es_remove_extent+0x14c/0x4f0 [ 33.245994] ? lock_release+0x970/0x970 [ 33.249952] ? kasan_check_write+0x14/0x20 [ 33.254171] ? do_raw_write_lock+0xbd/0x1b0 [ 33.258475] integrity_inode_free+0x12f/0x320 [ 33.262953] security_inode_free+0x19/0x90 [ 33.267174] __destroy_inode+0x328/0x820 [ 33.271247] ? generic_update_time+0x450/0x450 [ 33.275810] ? evict+0x5d8/0x980 [ 33.279161] ? lock_downgrade+0x900/0x900 [ 33.283299] ? __inode_wait_for_writeback+0x2cf/0x380 [ 33.288476] destroy_inode+0xda/0x200 [ 33.292259] ? __destroy_inode+0x820/0x820 [ 33.296472] ? kasan_check_write+0x14/0x20 [ 33.300688] ? do_raw_spin_lock+0xc1/0x200 [ 33.304906] evict+0x5e0/0x980 [ 33.308084] ? destroy_inode+0x200/0x200 [ 33.312127] ? iput+0x66c/0xa90 [ 33.315387] ? lock_downgrade+0x900/0x900 [ 33.319517] ? kasan_check_read+0x11/0x20 [ 33.323667] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 33.328240] ? lock_downgrade+0x900/0x900 [ 33.332369] iput+0x674/0xa90 [ 33.335461] ? inode_add_lru+0x2a0/0x2a0 [ 33.339503] ? up_write+0x7b/0x220 [ 33.343057] ? down_write_nested+0x130/0x130 [ 33.347449] ? down_write_nested+0x130/0x130 [ 33.351843] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.357360] ? check_preemption_disabled+0x48/0x200 [ 33.362361] ext4_ioctl+0x236a/0x4210 [ 33.366142] ? ext4_ioctl_group_add+0x560/0x560 [ 33.370796] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 33.375704] ? kasan_check_read+0x11/0x20 [ 33.379833] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 33.385090] ? rcu_softirq_qs+0x20/0x20 [ 33.389046] ? rcu_softirq_qs+0x20/0x20 [ 33.393004] ? unwind_dump+0x190/0x190 [ 33.396878] ? is_bpf_text_address+0xd3/0x170 [ 33.401359] ? kernel_text_address+0x79/0xf0 [ 33.405749] ? __kernel_text_address+0xd/0x40 [ 33.410245] ? unwind_get_return_address+0x61/0xa0 [ 33.415158] ? __save_stack_trace+0x8d/0xf0 [ 33.419469] ? save_stack+0xa9/0xd0 [ 33.423086] ? save_stack+0x43/0xd0 [ 33.426695] ? __kasan_slab_free+0x102/0x150 [ 33.431087] ? kasan_slab_free+0xe/0x10 [ 33.435042] ? kmem_cache_free+0x83/0x290 [ 33.439175] ? putname+0xf2/0x130 [ 33.442610] ? do_sys_open+0x54d/0x700 [ 33.446474] ? __x64_sys_open+0x7e/0xc0 [ 33.450430] ? do_syscall_64+0x1b9/0x820 [ 33.454471] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.459826] ? trace_hardirqs_off+0xb8/0x310 [ 33.464216] ? kasan_check_read+0x11/0x20 [ 33.468346] ? do_raw_spin_unlock+0xa7/0x2f0 [ 33.472737] ? trace_hardirqs_on_caller+0x310/0x310 [ 33.477741] ? kasan_check_write+0x14/0x20 [ 33.481968] ? trace_hardirqs_off+0xb8/0x310 [ 33.486360] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.491882] ? ext4_ioctl_group_add+0x560/0x560 [ 33.496531] do_vfs_ioctl+0x1de/0x1720 [ 33.500403] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 33.505918] ? ioctl_preallocate+0x300/0x300 [ 33.510308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.515823] ? __fget_light+0x2e9/0x430 [ 33.519779] ? fget_raw+0x20/0x20 [ 33.523219] ? rcu_read_lock_sched_held+0x108/0x120 [ 33.528218] ? kmem_cache_free+0x24f/0x290 [ 33.532432] ? putname+0xf7/0x130 [ 33.535864] ? do_syscall_64+0x9a/0x820 [ 33.539821] ? do_syscall_64+0x9a/0x820 [ 33.543781] ? lockdep_hardirqs_on+0x421/0x5c0 [ 33.548345] ? security_file_ioctl+0x94/0xc0 [ 33.552733] ksys_ioctl+0xa9/0xd0 [ 33.556173] __x64_sys_ioctl+0x73/0xb0 [ 33.560063] do_syscall_64+0x1b9/0x820 [ 33.563940] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 33.569285] ? syscall_return_slowpath+0x5e0/0x5e0 [ 33.574197] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.579021] ? trace_hardirqs_off+0x310/0x310 [ 33.583495] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 33.588493] ? prepare_exit_to_usermode+0x291/0x3b0 [ 33.593493] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.598318] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.603508] RIP: 0033:0x440029 [ 33.606687] 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 [ 33.625597] RSP: 002b:00007fff504c4408 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 33.633288] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 33.640540] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000003 [ 33.647789] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 33.655055] R10: 0000000000000000 R11: 0000000000000207 R12: 00000000004018b0 [ 33.662303] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 33.669555] Modules linked in: [ 33.672845] ---[ end trace 1c94867877cd27b4 ]--- [ 33.677646] RIP: 0010:rb_erase+0x306/0x3710 [ 33.681977] 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 [ 33.700889] RSP: 0018:ffff8801d7e86918 EFLAGS: 00010202 [ 33.706270] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 33.713551] RDX: 1ffff1003afd0d2b RSI: ffffffff8b5a4340 RDI: 0000000000000008 [ 33.720836] RBP: ffff8801d7e87320 R08: dffffc0000000000 R09: fffffbfff135d930 [ 33.728120] R10: fffffbfff135d930 R11: ffffffff89aec983 R12: ffff8801b6f6f970 [ 33.735390] R13: dffffc0000000000 R14: ffff8801d7e872f8 R15: ffff8801d7e87438 [ 33.742703] FS: 00000000017b3880(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 [ 33.750939] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.756801] CR2: 0000000020000700 CR3: 00000001d96fe000 CR4: 00000000001406e0 [ 33.764084] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.771367] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.778649] Kernel panic - not syncing: Fatal exception [ 33.785073] Kernel Offset: disabled [ 33.788716] Rebooting in 86400 seconds..