[info] Using makefile-style concurrent boot in runlevel 2. [ 24.605776] audit: type=1800 audit(1538564161.972:21): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.632962] audit: type=1800 audit(1538564161.972:22): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.951687] kasan: CONFIG_KASAN_INLINE enabled [ 34.956409] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.963761] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.969977] CPU: 1 PID: 5335 Comm: syz-executor915 Not tainted 4.19.0-rc6+ #41 [ 34.977316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.986659] RIP: 0010:rb_erase+0x306/0x3710 [ 34.990963] 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 [ 35.009848] RSP: 0018:ffff8801d79e6918 EFLAGS: 00010202 [ 35.015192] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 35.022458] RDX: 1ffff1003af3cd2b RSI: ffffffff8afbc8a0 RDI: 0000000000000008 [ 35.029710] RBP: ffff8801d79e7320 R08: dffffc0000000000 R09: fffffbfff12d6a48 [ 35.036973] R10: fffffbfff12d6a48 R11: ffffffff896b5243 R12: ffff8801c28352b0 [ 35.044223] R13: dffffc0000000000 R14: ffff8801d79e72f8 R15: ffff8801d79e7438 [ 35.051492] FS: 00000000012ce880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 35.059701] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.065571] CR2: 0000000020000080 CR3: 00000001d808a000 CR4: 00000000001406e0 [ 35.072839] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.080113] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.087362] Call Trace: [ 35.089934] ? lockdep_on+0x50/0x50 [ 35.093555] ? rb_insert_color+0x1460/0x1460 [ 35.097951] ? noop_count+0x40/0x40 [ 35.101564] ? lock_pin_lock+0x350/0x350 [ 35.105697] ? noop_count+0x40/0x40 [ 35.109306] ? kasan_check_read+0x11/0x20 [ 35.113432] ? noop_count+0x40/0x40 [ 35.117044] ? noop_count+0x40/0x40 [ 35.120650] ? lock_pin_lock+0x350/0x350 [ 35.124698] ? mark_held_locks+0x130/0x130 [ 35.128915] ? check_usage_forwards+0x3e0/0x3e0 [ 35.133568] ? __bfs+0x385/0x7a0 [ 35.136917] ? noop_count+0x40/0x40 [ 35.140538] ? check_usage+0x1a9/0x790 [ 35.144412] ? lock_pin_lock+0x350/0x350 [ 35.148470] ? check_usage_forwards+0x3e0/0x3e0 [ 35.153122] ? __bfs+0x385/0x7a0 [ 35.156489] ? __lock_acquire+0x7ec/0x4ec0 [ 35.160705] ? lockdep_on+0x50/0x50 [ 35.164314] ? lock_pin_lock+0x350/0x350 [ 35.168364] ? mark_held_locks+0x130/0x130 [ 35.172581] ? kasan_check_read+0x11/0x20 [ 35.176708] ? __lock_acquire+0x2881/0x4ec0 [ 35.181013] ? mark_held_locks+0x130/0x130 [ 35.185233] ? print_usage_bug+0xc0/0xc0 [ 35.189277] ? _raw_spin_unlock+0x2c/0x50 [ 35.193407] ? graph_lock+0x170/0x170 [ 35.197192] ? ext4_exit_mballoc+0xc0/0xc0 [ 35.201408] ? __lock_acquire+0x7ec/0x4ec0 [ 35.205628] ? find_held_lock+0x36/0x1c0 [ 35.209672] ? mark_held_locks+0x130/0x130 [ 35.213887] ? lock_downgrade+0x900/0x900 [ 35.218029] ? ext4_es_scan+0x960/0x960 [ 35.221998] ? do_raw_write_trylock+0x1c0/0x1c0 [ 35.226649] ? kasan_check_write+0x14/0x20 [ 35.230866] ? lock_acquire+0x1ed/0x520 [ 35.234821] ? integrity_inode_free+0x77/0x320 [ 35.239392] ? ext4_es_remove_extent+0x151/0x500 [ 35.244132] ? lock_release+0x970/0x970 [ 35.248095] ? kasan_check_write+0x14/0x20 [ 35.252312] ? do_raw_write_lock+0xbd/0x1b0 [ 35.256705] integrity_inode_free+0x12f/0x320 [ 35.261184] security_inode_free+0x19/0x90 [ 35.265428] __destroy_inode+0x328/0x820 [ 35.269474] ? generic_update_time+0x450/0x450 [ 35.274040] ? evict+0x5d8/0x980 [ 35.277393] ? lock_downgrade+0x900/0x900 [ 35.281543] ? __inode_wait_for_writeback+0x2cf/0x380 [ 35.286719] destroy_inode+0xda/0x200 [ 35.290504] ? __destroy_inode+0x820/0x820 [ 35.294724] ? kasan_check_write+0x14/0x20 [ 35.298942] ? do_raw_spin_lock+0xc1/0x200 [ 35.303158] evict+0x5e0/0x980 [ 35.306337] ? destroy_inode+0x200/0x200 [ 35.310377] ? iput+0x671/0xa90 [ 35.313639] ? lock_downgrade+0x900/0x900 [ 35.317771] ? kasan_check_read+0x11/0x20 [ 35.321901] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 35.326480] ? lock_downgrade+0x900/0x900 [ 35.330611] iput+0x679/0xa90 [ 35.333701] ? inode_add_lru+0x2a0/0x2a0 [ 35.337748] ? up_write+0x7b/0x220 [ 35.341266] ? up_read+0x110/0x110 [ 35.344784] ? up_read+0x110/0x110 [ 35.348308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.353829] ? check_preemption_disabled+0x48/0x200 [ 35.358833] ext4_ioctl+0x236f/0x4210 [ 35.362617] ? is_bpf_text_address+0xac/0x170 [ 35.367111] ? ext4_ioctl_group_add+0x560/0x560 [ 35.371765] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 35.377548] ? kasan_check_read+0x11/0x20 [ 35.381678] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 35.386939] ? rcu_bh_qs+0xc0/0xc0 [ 35.390463] ? rcu_bh_qs+0xc0/0xc0 [ 35.393984] ? unwind_dump+0x190/0x190 [ 35.397873] ? is_bpf_text_address+0xd3/0x170 [ 35.402350] ? kernel_text_address+0x79/0xf0 [ 35.406757] ? __kernel_text_address+0xd/0x40 [ 35.411248] ? unwind_get_return_address+0x61/0xa0 [ 35.416162] ? __save_stack_trace+0x8d/0xf0 [ 35.420485] ? save_stack+0xa9/0xd0 [ 35.424106] ? save_stack+0x43/0xd0 [ 35.427735] ? __kasan_slab_free+0x102/0x150 [ 35.432122] ? kasan_slab_free+0xe/0x10 [ 35.436077] ? kmem_cache_free+0x83/0x290 [ 35.440207] ? putname+0xf2/0x130 [ 35.443639] ? do_sys_open+0x54d/0x700 [ 35.447510] ? __x64_sys_openat+0x9d/0x100 [ 35.451733] ? do_syscall_64+0x1b9/0x820 [ 35.455812] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.461158] ? trace_hardirqs_off+0xb8/0x310 [ 35.465556] ? kasan_check_read+0x11/0x20 [ 35.469692] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.474170] ? trace_hardirqs_on+0x310/0x310 [ 35.478577] ? kasan_check_write+0x14/0x20 [ 35.482793] ? trace_hardirqs_off+0xb8/0x310 [ 35.487200] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.492721] ? check_preemption_disabled+0x48/0x200 [ 35.497720] ? check_preemption_disabled+0x48/0x200 [ 35.502718] ? ext4_ioctl_group_add+0x560/0x560 [ 35.507369] do_vfs_ioctl+0x1de/0x1720 [ 35.511254] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 35.516514] ? ioctl_preallocate+0x300/0x300 [ 35.520908] ? memset+0x31/0x40 [ 35.524167] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.529703] ? smack_file_ioctl+0x210/0x3c0 [ 35.534026] ? fget_raw+0x20/0x20 [ 35.537468] ? smack_file_lock+0x2e0/0x2e0 [ 35.541704] ? do_syscall_64+0x9a/0x820 [ 35.545661] ? do_syscall_64+0x9a/0x820 [ 35.549619] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.555140] ? security_file_ioctl+0x94/0xc0 [ 35.559538] ksys_ioctl+0xa9/0xd0 [ 35.562980] __x64_sys_ioctl+0x73/0xb0 [ 35.566852] do_syscall_64+0x1b9/0x820 [ 35.570725] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.576086] ? syscall_return_slowpath+0x5e0/0x5e0 [ 35.580999] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.585825] ? trace_hardirqs_on_caller+0x310/0x310 [ 35.590823] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 35.595822] ? prepare_exit_to_usermode+0x291/0x3b0 [ 35.600825] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.605655] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.610827] RIP: 0033:0x4400d9 [ 35.614002] 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 [ 35.632889] RSP: 002b:00007ffd63672638 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 35.640580] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 35.647833] RDX: 0000000020000040 RSI: 0000000000006611 RDI: 0000000000000003 [ 35.655086] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 35.662333] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 35.669585] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 35.676852] Modules linked in: [ 35.680161] ---[ end trace b625caf21524bdf0 ]--- [ 35.684960] RIP: 0010:rb_erase+0x306/0x3710 [ 35.689283] 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 [ 35.708200] RSP: 0018:ffff8801d79e6918 EFLAGS: 00010202 [ 35.713562] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 35.720847] RDX: 1ffff1003af3cd2b RSI: ffffffff8afbc8a0 RDI: 0000000000000008 [ 35.728128] RBP: ffff8801d79e7320 R08: dffffc0000000000 R09: fffffbfff12d6a48 [ 35.735414] R10: fffffbfff12d6a48 R11: ffffffff896b5243 R12: ffff8801c28352b0 [ 35.742680] R13: dffffc0000000000 R14: ffff8801d79e72f8 R15: ffff8801d79e7438 [ 35.749967] FS: 00000000012ce880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 35.758208] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.764075] CR2: 0000000020000080 CR3: 00000001d808a000 CR4: 00000000001406e0 [ 35.771363] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.778646] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.785925] Kernel panic - not syncing: Fatal exception [ 35.792189] Kernel Offset: disabled [ 35.795812] Rebooting in 86400 seconds..