[info] Using makefile-style concurrent boot in runlevel 2. [ 23.523644] audit: type=1800 audit(1537915126.071:21): pid=5177 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.551116] audit: type=1800 audit(1537915126.071:22): pid=5177 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 '10.128.0.85' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.031112] kasan: CONFIG_KASAN_INLINE enabled [ 36.035831] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.043319] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.049553] CPU: 0 PID: 5331 Comm: syz-executor704 Not tainted 4.19.0-rc5+ #254 [ 36.056981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.066325] RIP: 0010:rb_erase+0x306/0x3710 [ 36.070631] 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 [ 36.089539] RSP: 0018:ffff8801c61d6918 EFLAGS: 00010202 [ 36.094884] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.102152] RDX: 1ffff10038c3ad2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 36.109419] RBP: ffff8801c61d7320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 36.116669] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b6f781f0 [ 36.123925] R13: dffffc0000000000 R14: ffff8801c61d72f8 R15: ffff8801c61d7438 [ 36.131182] FS: 0000000001dca880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 36.139410] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.145279] CR2: 0000000020000700 CR3: 00000001d890f000 CR4: 00000000001406f0 [ 36.152541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.159807] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.167072] Call Trace: [ 36.169662] ? lockdep_on+0x50/0x50 [ 36.173280] ? rb_insert_color+0x1460/0x1460 [ 36.177681] ? noop_count+0x40/0x40 [ 36.181296] ? lock_pin_lock+0x350/0x350 [ 36.185347] ? noop_count+0x40/0x40 [ 36.188959] ? kasan_check_read+0x11/0x20 [ 36.193096] ? noop_count+0x40/0x40 [ 36.196708] ? noop_count+0x40/0x40 [ 36.200315] ? lock_pin_lock+0x350/0x350 [ 36.204360] ? mark_held_locks+0x130/0x130 [ 36.208595] ? check_usage_forwards+0x3e0/0x3e0 [ 36.213246] ? __bfs+0x385/0x7a0 [ 36.216594] ? noop_count+0x40/0x40 [ 36.220205] ? check_usage+0x1a9/0x790 [ 36.224075] ? lock_pin_lock+0x350/0x350 [ 36.228124] ? check_usage_forwards+0x3e0/0x3e0 [ 36.232774] ? __bfs+0x385/0x7a0 [ 36.236122] ? __lock_acquire+0x7ec/0x4ec0 [ 36.240336] ? lockdep_on+0x50/0x50 [ 36.243948] ? lock_pin_lock+0x350/0x350 [ 36.247995] ? mark_held_locks+0x130/0x130 [ 36.252215] ? kasan_check_read+0x11/0x20 [ 36.256344] ? __lock_acquire+0x2881/0x4ec0 [ 36.260653] ? mark_held_locks+0x130/0x130 [ 36.264869] ? print_usage_bug+0xc0/0xc0 [ 36.268917] ? _raw_spin_unlock+0x2c/0x50 [ 36.273050] ? graph_lock+0x170/0x170 [ 36.276834] ? ext4_exit_mballoc+0xc0/0xc0 [ 36.281053] ? __lock_acquire+0x7ec/0x4ec0 [ 36.285270] ? find_held_lock+0x36/0x1c0 [ 36.289314] ? mark_held_locks+0x130/0x130 [ 36.293531] ? lock_downgrade+0x900/0x900 [ 36.297661] ? ext4_es_scan+0x960/0x960 [ 36.301623] ? do_raw_write_trylock+0x1c0/0x1c0 [ 36.306274] ? kasan_check_write+0x14/0x20 [ 36.310491] ? lock_acquire+0x1ed/0x520 [ 36.314451] ? integrity_inode_free+0x77/0x320 [ 36.319021] ? ext4_es_remove_extent+0x151/0x500 [ 36.323762] ? lock_release+0x970/0x970 [ 36.327742] ? kasan_check_write+0x14/0x20 [ 36.331962] ? do_raw_write_lock+0xbd/0x1b0 [ 36.336281] integrity_inode_free+0x12f/0x320 [ 36.340761] security_inode_free+0x19/0x90 [ 36.344981] __destroy_inode+0x328/0x820 [ 36.349023] ? generic_update_time+0x450/0x450 [ 36.353591] ? evict+0x5d8/0x980 [ 36.356941] ? lock_downgrade+0x900/0x900 [ 36.361074] ? __inode_wait_for_writeback+0x2cf/0x380 [ 36.366267] destroy_inode+0xda/0x200 [ 36.370049] ? __destroy_inode+0x820/0x820 [ 36.374281] ? kasan_check_write+0x14/0x20 [ 36.378496] ? do_raw_spin_lock+0xc1/0x200 [ 36.382714] evict+0x5e0/0x980 [ 36.385892] ? destroy_inode+0x200/0x200 [ 36.389933] ? iput+0x671/0xa90 [ 36.393217] ? lock_downgrade+0x900/0x900 [ 36.397350] ? kasan_check_read+0x11/0x20 [ 36.401504] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 36.406081] ? lock_downgrade+0x900/0x900 [ 36.410217] iput+0x679/0xa90 [ 36.413306] ? inode_add_lru+0x2a0/0x2a0 [ 36.417349] ? up_write+0x7b/0x220 [ 36.420867] ? up_read+0x110/0x110 [ 36.424385] ? up_read+0x110/0x110 [ 36.427909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.433431] ? check_preemption_disabled+0x48/0x200 [ 36.438433] ext4_ioctl+0x236f/0x4210 [ 36.442217] ? ext4_ioctl_group_add+0x560/0x560 [ 36.446871] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 36.452650] ? kasan_check_read+0x11/0x20 [ 36.456781] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.462063] ? rcu_bh_qs+0xc0/0xc0 [ 36.465592] ? rcu_bh_qs+0xc0/0xc0 [ 36.469116] ? unwind_dump+0x190/0x190 [ 36.473007] ? is_bpf_text_address+0xd3/0x170 [ 36.477487] ? kernel_text_address+0x79/0xf0 [ 36.481896] ? __kernel_text_address+0xd/0x40 [ 36.486373] ? unwind_get_return_address+0x61/0xa0 [ 36.491289] ? __save_stack_trace+0x8d/0xf0 [ 36.495599] ? save_stack+0xa9/0xd0 [ 36.499207] ? save_stack+0x43/0xd0 [ 36.502821] ? __kasan_slab_free+0x102/0x150 [ 36.507212] ? kasan_slab_free+0xe/0x10 [ 36.511172] ? kmem_cache_free+0x83/0x290 [ 36.515302] ? putname+0xf2/0x130 [ 36.518737] ? do_sys_open+0x54d/0x700 [ 36.522605] ? __x64_sys_open+0x7e/0xc0 [ 36.526566] ? do_syscall_64+0x1b9/0x820 [ 36.530615] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.535971] ? trace_hardirqs_off+0xb8/0x310 [ 36.540360] ? kasan_check_read+0x11/0x20 [ 36.544493] ? do_raw_spin_unlock+0xa7/0x2f0 [ 36.548882] ? trace_hardirqs_on+0x310/0x310 [ 36.553274] ? kasan_check_write+0x14/0x20 [ 36.557491] ? trace_hardirqs_off+0xb8/0x310 [ 36.561885] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.567404] ? check_preemption_disabled+0x48/0x200 [ 36.572406] ? ext4_ioctl_group_add+0x560/0x560 [ 36.577079] do_vfs_ioctl+0x1de/0x1720 [ 36.580962] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 36.586480] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.591743] ? ioctl_preallocate+0x300/0x300 [ 36.596134] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.601655] ? __fget_light+0x2e9/0x430 [ 36.605611] ? fget_raw+0x20/0x20 [ 36.609068] ? rcu_read_lock_sched_held+0x108/0x120 [ 36.614077] ? kmem_cache_free+0x24f/0x290 [ 36.618296] ? putname+0xf7/0x130 [ 36.621735] ? do_syscall_64+0x9a/0x820 [ 36.625690] ? do_syscall_64+0x9a/0x820 [ 36.629649] ? lockdep_hardirqs_on+0x421/0x5c0 [ 36.634218] ? security_file_ioctl+0x94/0xc0 [ 36.638611] ksys_ioctl+0xa9/0xd0 [ 36.642049] __x64_sys_ioctl+0x73/0xb0 [ 36.645918] do_syscall_64+0x1b9/0x820 [ 36.649789] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.655139] ? syscall_return_slowpath+0x5e0/0x5e0 [ 36.660051] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.664879] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.669876] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 36.674874] ? prepare_exit_to_usermode+0x291/0x3b0 [ 36.679877] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.684709] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.689880] RIP: 0033:0x440029 [ 36.693056] 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 [ 36.711939] RSP: 002b:00007ffd31438138 EFLAGS: 00000217 ORIG_RAX: 0000000000000010 [ 36.719635] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 36.726885] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000004 [ 36.734135] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 36.741400] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018b0 [ 36.748650] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 36.755940] Modules linked in: [ 36.759256] ---[ end trace 7d9077ec880abca9 ]--- [ 36.764110] RIP: 0010:rb_erase+0x306/0x3710 [ 36.768418] 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 [ 36.787352] RSP: 0018:ffff8801c61d6918 EFLAGS: 00010202 [ 36.792732] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.799988] RDX: 1ffff10038c3ad2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 36.807266] RBP: ffff8801c61d7320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 36.814546] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b6f781f0 [ 36.821834] R13: dffffc0000000000 R14: ffff8801c61d72f8 R15: ffff8801c61d7438 [ 36.829106] FS: 0000000001dca880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 36.837344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.843235] CR2: 0000000020000700 CR3: 00000001d890f000 CR4: 00000000001406f0 [ 36.850495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.857779] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.865069] Kernel panic - not syncing: Fatal exception [ 36.871407] Kernel Offset: disabled [ 36.875033] Rebooting in 86400 seconds..