[info] Using makefile-style concurrent boot in runlevel 2. [ 24.731266] audit: type=1800 audit(1539958670.577:21): pid=5202 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.758781] audit: type=1800 audit(1539958670.577:22): pid=5202 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 '10.128.0.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.919519] kasan: CONFIG_KASAN_INLINE enabled [ 34.924247] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.931688] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.937921] CPU: 0 PID: 5356 Comm: syz-executor911 Not tainted 4.19.0-rc7+ #267 [ 34.945345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.954697] RIP: 0010:rb_erase+0x306/0x3710 [ 34.959004] 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 [ 34.977887] RSP: 0018:ffff8801d8846918 EFLAGS: 00010202 [ 34.983246] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 34.990538] RDX: 1ffff1003b108d2b RSI: ffffffff8afc5020 RDI: 0000000000000008 [ 34.997791] RBP: ffff8801d8847320 R08: dffffc0000000000 R09: fffffbfff12d68f0 [ 35.005044] R10: fffffbfff12d68f0 R11: ffffffff896b4783 R12: ffff8801b6e81970 [ 35.012293] R13: dffffc0000000000 R14: ffff8801d88472f8 R15: ffff8801d8847438 [ 35.019544] FS: 0000000000ef8880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 35.027748] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.033616] CR2: 0000000020000080 CR3: 00000001d8f9f000 CR4: 00000000001406f0 [ 35.040884] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.048163] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.055448] Call Trace: [ 35.058018] ? lockdep_on+0x50/0x50 [ 35.061633] ? rb_insert_color+0x1460/0x1460 [ 35.066284] ? lock_downgrade+0x900/0x900 [ 35.070429] ? noop_count+0x40/0x40 [ 35.074037] ? lock_pin_lock+0x350/0x350 [ 35.078094] ? rcu_bh_qs+0xc0/0xc0 [ 35.081647] ? unwind_dump+0x190/0x190 [ 35.085558] ? kasan_check_read+0x11/0x20 [ 35.089690] ? noop_count+0x40/0x40 [ 35.093314] ? lock_pin_lock+0x350/0x350 [ 35.097375] ? mark_held_locks+0x130/0x130 [ 35.101629] ? check_usage_forwards+0x3e0/0x3e0 [ 35.106284] ? __bfs+0x385/0x7a0 [ 35.109635] ? check_usage+0x1a9/0x790 [ 35.113507] ? lock_pin_lock+0x350/0x350 [ 35.117550] ? check_usage_forwards+0x3e0/0x3e0 [ 35.122378] ? __bfs+0x385/0x7a0 [ 35.125728] ? lockdep_on+0x50/0x50 [ 35.129334] ? lock_pin_lock+0x350/0x350 [ 35.133390] ? mark_held_locks+0x130/0x130 [ 35.137609] ? kasan_check_read+0x11/0x20 [ 35.141760] ? __lock_acquire+0x2881/0x4ec0 [ 35.146102] ? mark_held_locks+0x130/0x130 [ 35.150321] ? print_usage_bug+0xc0/0xc0 [ 35.154371] ? _raw_spin_unlock+0x2c/0x50 [ 35.158503] ? graph_lock+0x170/0x170 [ 35.162303] ? ext4_exit_mballoc+0xc0/0xc0 [ 35.166521] ? __lock_acquire+0x7ec/0x4ec0 [ 35.170737] ? find_held_lock+0x36/0x1c0 [ 35.174783] ? mark_held_locks+0x130/0x130 [ 35.179012] ? lock_downgrade+0x900/0x900 [ 35.183159] ? ext4_es_scan+0x960/0x960 [ 35.187137] ? do_raw_write_trylock+0x1c0/0x1c0 [ 35.191791] ? kasan_check_write+0x14/0x20 [ 35.196022] ? lock_acquire+0x1ed/0x520 [ 35.199978] ? integrity_inode_free+0x77/0x320 [ 35.204541] ? ext4_es_remove_extent+0x151/0x500 [ 35.209279] ? lock_release+0x970/0x970 [ 35.213240] ? kasan_check_write+0x14/0x20 [ 35.217456] ? do_raw_write_lock+0xbd/0x1b0 [ 35.221762] integrity_inode_free+0x12f/0x320 [ 35.226241] security_inode_free+0x19/0x90 [ 35.230458] __destroy_inode+0x328/0x820 [ 35.234501] ? generic_update_time+0x450/0x450 [ 35.239065] ? evict+0x5d8/0x980 [ 35.242420] ? lock_downgrade+0x900/0x900 [ 35.246566] ? __inode_wait_for_writeback+0x2cf/0x380 [ 35.251742] destroy_inode+0xda/0x200 [ 35.255524] ? __destroy_inode+0x820/0x820 [ 35.259743] ? kasan_check_write+0x14/0x20 [ 35.263962] ? do_raw_spin_lock+0xc1/0x200 [ 35.268180] evict+0x5e0/0x980 [ 35.271364] ? destroy_inode+0x200/0x200 [ 35.275406] ? iput+0x671/0xa90 [ 35.278666] ? lock_downgrade+0x900/0x900 [ 35.282798] ? kasan_check_read+0x11/0x20 [ 35.286929] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 35.291494] ? lock_downgrade+0x900/0x900 [ 35.295648] iput+0x679/0xa90 [ 35.298751] ? inode_add_lru+0x2a0/0x2a0 [ 35.302796] ? up_write+0x7b/0x220 [ 35.306315] ? up_read+0x110/0x110 [ 35.309833] ? up_read+0x110/0x110 [ 35.313373] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.318895] ? check_preemption_disabled+0x48/0x200 [ 35.323898] ext4_ioctl+0x236f/0x4210 [ 35.327682] ? is_bpf_text_address+0xac/0x170 [ 35.332161] ? ext4_ioctl_group_add+0x560/0x560 [ 35.336817] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 35.342599] ? kasan_check_read+0x11/0x20 [ 35.346734] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 35.351994] ? rcu_bh_qs+0xc0/0xc0 [ 35.355515] ? rcu_bh_qs+0xc0/0xc0 [ 35.359036] ? unwind_dump+0x190/0x190 [ 35.362908] ? is_bpf_text_address+0xd3/0x170 [ 35.367386] ? kernel_text_address+0x79/0xf0 [ 35.371778] ? __kernel_text_address+0xd/0x40 [ 35.376255] ? unwind_get_return_address+0x61/0xa0 [ 35.381168] ? __save_stack_trace+0x8d/0xf0 [ 35.385475] ? save_stack+0xa9/0xd0 [ 35.389083] ? save_stack+0x43/0xd0 [ 35.392690] ? __kasan_slab_free+0x102/0x150 [ 35.397077] ? kasan_slab_free+0xe/0x10 [ 35.401032] ? kmem_cache_free+0x83/0x290 [ 35.405176] ? putname+0xf2/0x130 [ 35.408609] ? do_sys_open+0x54d/0x700 [ 35.412485] ? __x64_sys_openat+0x9d/0x100 [ 35.416701] ? do_syscall_64+0x1b9/0x820 [ 35.420747] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.426097] ? trace_hardirqs_off+0xb8/0x310 [ 35.430490] ? kasan_check_read+0x11/0x20 [ 35.434630] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.439018] ? trace_hardirqs_on+0x310/0x310 [ 35.443410] ? kasan_check_write+0x14/0x20 [ 35.447645] ? trace_hardirqs_off+0xb8/0x310 [ 35.452036] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.457644] ? check_preemption_disabled+0x48/0x200 [ 35.462644] ? check_preemption_disabled+0x48/0x200 [ 35.467657] ? ext4_ioctl_group_add+0x560/0x560 [ 35.472331] do_vfs_ioctl+0x1de/0x1720 [ 35.476210] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 35.481480] ? ioctl_preallocate+0x300/0x300 [ 35.485886] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.491425] ? __fget_light+0x2e9/0x430 [ 35.495398] ? fget_raw+0x20/0x20 [ 35.498831] ? putname+0xf2/0x130 [ 35.502269] ? rcu_read_lock_sched_held+0x108/0x120 [ 35.507266] ? kmem_cache_free+0x24f/0x290 [ 35.511501] ? putname+0xf7/0x130 [ 35.514941] ? do_syscall_64+0x9a/0x820 [ 35.518894] ? do_syscall_64+0x9a/0x820 [ 35.522850] ? lockdep_hardirqs_on+0x421/0x5c0 [ 35.527429] ? security_file_ioctl+0x94/0xc0 [ 35.531824] ksys_ioctl+0xa9/0xd0 [ 35.535261] __x64_sys_ioctl+0x73/0xb0 [ 35.539148] do_syscall_64+0x1b9/0x820 [ 35.543026] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.548374] ? syscall_return_slowpath+0x5e0/0x5e0 [ 35.553287] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.558115] ? trace_hardirqs_on_caller+0x310/0x310 [ 35.563120] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 35.568122] ? prepare_exit_to_usermode+0x291/0x3b0 [ 35.573123] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.577952] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.583141] RIP: 0033:0x440009 [ 35.586318] 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 [ 35.605202] RSP: 002b:00007fff8b07d738 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 35.612909] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 35.620197] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 35.627461] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 35.634728] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 35.641987] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 35.649256] Modules linked in: [ 35.652543] ---[ end trace be68e216cef44605 ]--- [ 35.657312] RIP: 0010:rb_erase+0x306/0x3710 [ 35.661676] 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 [ 35.680623] RSP: 0018:ffff8801d8846918 EFLAGS: 00010202 [ 35.685985] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 35.693375] RDX: 1ffff1003b108d2b RSI: ffffffff8afc5020 RDI: 0000000000000008 [ 35.700680] RBP: ffff8801d8847320 R08: dffffc0000000000 R09: fffffbfff12d68f0 [ 35.707947] R10: fffffbfff12d68f0 R11: ffffffff896b4783 R12: ffff8801b6e81970 [ 35.715230] R13: dffffc0000000000 R14: ffff8801d88472f8 R15: ffff8801d8847438 [ 35.722519] FS: 0000000000ef8880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 35.730758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.736742] CR2: 0000000020000080 CR3: 00000001d8f9f000 CR4: 00000000001406f0 [ 35.744029] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.751310] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.758564] Kernel panic - not syncing: Fatal exception [ 35.764841] Kernel Offset: disabled [ 35.768465] Rebooting in 86400 seconds..