[info] Using makefile-style concurrent boot in runlevel 2. [ 23.396543] audit: type=1800 audit(1538394708.916:21): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.423436] audit: type=1800 audit(1538394708.926:22): pid=5181 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 '10.128.0.64' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.284395] kasan: CONFIG_KASAN_INLINE enabled [ 35.289397] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.296750] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.302964] CPU: 0 PID: 5336 Comm: syz-executor961 Not tainted 4.19.0-rc5+ #238 [ 35.310518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.319863] RIP: 0010:rb_erase+0x306/0x3710 [ 35.324170] 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 [ 35.343053] RSP: 0018:ffff8801d93e6918 EFLAGS: 00010202 [ 35.348513] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 35.355766] RDX: 1ffff1003b27cd2b RSI: ffffffff8afc08a0 RDI: 0000000000000008 [ 35.363016] RBP: ffff8801d93e7320 R08: dffffc0000000000 R09: fffffbfff12d6a90 [ 35.370269] R10: fffffbfff12d6a90 R11: ffffffff896b5483 R12: ffff8801c44363b0 [ 35.377516] R13: dffffc0000000000 R14: ffff8801d93e72f8 R15: ffff8801d93e7438 [ 35.384769] FS: 0000000001e0a880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 35.393081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.398948] CR2: 0000000020000080 CR3: 00000001d93f3000 CR4: 00000000001406f0 [ 35.406202] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.413456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.420707] Call Trace: [ 35.423282] ? lockdep_on+0x50/0x50 [ 35.426895] ? rb_insert_color+0x1460/0x1460 [ 35.431288] ? noop_count+0x40/0x40 [ 35.434893] ? lock_pin_lock+0x350/0x350 [ 35.438941] ? noop_count+0x40/0x40 [ 35.442551] ? kasan_check_read+0x11/0x20 [ 35.446681] ? noop_count+0x40/0x40 [ 35.450293] ? noop_count+0x40/0x40 [ 35.454020] ? lock_pin_lock+0x350/0x350 [ 35.458065] ? mark_held_locks+0x130/0x130 [ 35.462284] ? check_usage_forwards+0x3e0/0x3e0 [ 35.466935] ? __bfs+0x385/0x7a0 [ 35.470281] ? noop_count+0x40/0x40 [ 35.473890] ? check_usage+0x1a9/0x790 [ 35.477765] ? lock_pin_lock+0x350/0x350 [ 35.481818] ? check_usage_forwards+0x3e0/0x3e0 [ 35.486469] ? __bfs+0x385/0x7a0 [ 35.489831] ? __lock_acquire+0x7ec/0x4ec0 [ 35.494046] ? lockdep_on+0x50/0x50 [ 35.497662] ? lock_pin_lock+0x350/0x350 [ 35.501708] ? mark_held_locks+0x130/0x130 [ 35.505923] ? kasan_check_read+0x11/0x20 [ 35.510053] ? __lock_acquire+0x2881/0x4ec0 [ 35.514357] ? mark_held_locks+0x130/0x130 [ 35.518575] ? print_usage_bug+0xc0/0xc0 [ 35.522617] ? _raw_spin_unlock+0x2c/0x50 [ 35.526757] ? graph_lock+0x170/0x170 [ 35.530543] ? ext4_exit_mballoc+0xc0/0xc0 [ 35.534758] ? __lock_acquire+0x7ec/0x4ec0 [ 35.538977] ? find_held_lock+0x36/0x1c0 [ 35.543022] ? mark_held_locks+0x130/0x130 [ 35.547237] ? lock_downgrade+0x900/0x900 [ 35.551368] ? ext4_es_scan+0x960/0x960 [ 35.555326] ? do_raw_write_trylock+0x1c0/0x1c0 [ 35.559977] ? kasan_check_write+0x14/0x20 [ 35.564195] ? lock_acquire+0x1ed/0x520 [ 35.568230] ? integrity_inode_free+0x77/0x320 [ 35.572811] ? ext4_es_remove_extent+0x151/0x500 [ 35.577551] ? lock_release+0x970/0x970 [ 35.581507] ? kasan_check_write+0x14/0x20 [ 35.585721] ? do_raw_write_lock+0xbd/0x1b0 [ 35.590029] integrity_inode_free+0x12f/0x320 [ 35.594511] security_inode_free+0x19/0x90 [ 35.598731] __destroy_inode+0x328/0x820 [ 35.602826] ? generic_update_time+0x450/0x450 [ 35.607397] ? evict+0x5d8/0x980 [ 35.610747] ? lock_downgrade+0x900/0x900 [ 35.614879] ? __inode_wait_for_writeback+0x2cf/0x380 [ 35.620050] destroy_inode+0xda/0x200 [ 35.623903] ? __destroy_inode+0x820/0x820 [ 35.628127] ? kasan_check_write+0x14/0x20 [ 35.632345] ? do_raw_spin_lock+0xc1/0x200 [ 35.636562] evict+0x5e0/0x980 [ 35.639740] ? destroy_inode+0x200/0x200 [ 35.643924] ? iput+0x671/0xa90 [ 35.647194] ? lock_downgrade+0x900/0x900 [ 35.651324] ? kasan_check_read+0x11/0x20 [ 35.655453] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 35.660083] ? lock_downgrade+0x900/0x900 [ 35.664221] iput+0x679/0xa90 [ 35.667319] ? inode_add_lru+0x2a0/0x2a0 [ 35.671362] ? up_write+0x7b/0x220 [ 35.674880] ? up_read+0x110/0x110 [ 35.678399] ? up_read+0x110/0x110 [ 35.681922] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.687443] ? check_preemption_disabled+0x48/0x200 [ 35.692444] ext4_ioctl+0x236f/0x4210 [ 35.696231] ? is_bpf_text_address+0xac/0x170 [ 35.700723] ? ext4_ioctl_group_add+0x560/0x560 [ 35.705380] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 35.711157] ? kasan_check_read+0x11/0x20 [ 35.715288] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 35.720546] ? rcu_bh_qs+0xc0/0xc0 [ 35.724068] ? rcu_bh_qs+0xc0/0xc0 [ 35.727594] ? unwind_dump+0x190/0x190 [ 35.731468] ? is_bpf_text_address+0xd3/0x170 [ 35.735946] ? kernel_text_address+0x79/0xf0 [ 35.740335] ? __kernel_text_address+0xd/0x40 [ 35.744824] ? unwind_get_return_address+0x61/0xa0 [ 35.749741] ? __save_stack_trace+0x8d/0xf0 [ 35.754054] ? save_stack+0xa9/0xd0 [ 35.757684] ? save_stack+0x43/0xd0 [ 35.761292] ? __kasan_slab_free+0x102/0x150 [ 35.765679] ? kasan_slab_free+0xe/0x10 [ 35.769637] ? kmem_cache_free+0x83/0x290 [ 35.773764] ? putname+0xf2/0x130 [ 35.777201] ? do_sys_open+0x54d/0x700 [ 35.781067] ? __x64_sys_openat+0x9d/0x100 [ 35.785283] ? do_syscall_64+0x1b9/0x820 [ 35.789331] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.794678] ? trace_hardirqs_off+0xb8/0x310 [ 35.799069] ? kasan_check_read+0x11/0x20 [ 35.803289] ? do_raw_spin_unlock+0xa7/0x2f0 [ 35.807682] ? trace_hardirqs_on+0x310/0x310 [ 35.812073] ? kasan_check_write+0x14/0x20 [ 35.816287] ? trace_hardirqs_off+0xb8/0x310 [ 35.820678] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.826207] ? check_preemption_disabled+0x48/0x200 [ 35.831210] ? check_preemption_disabled+0x48/0x200 [ 35.836297] ? ext4_ioctl_group_add+0x560/0x560 [ 35.840955] do_vfs_ioctl+0x1de/0x1720 [ 35.844839] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 35.850104] ? ioctl_preallocate+0x300/0x300 [ 35.854496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.860015] ? __fget_light+0x2e9/0x430 [ 35.863970] ? fget_raw+0x20/0x20 [ 35.867403] ? putname+0xf2/0x130 [ 35.870836] ? rcu_read_lock_sched_held+0x108/0x120 [ 35.875840] ? kmem_cache_free+0x24f/0x290 [ 35.880071] ? putname+0xf7/0x130 [ 35.883507] ? do_syscall_64+0x9a/0x820 [ 35.887462] ? do_syscall_64+0x9a/0x820 [ 35.891420] ? lockdep_hardirqs_on+0x421/0x5c0 [ 35.895991] ? security_file_ioctl+0x94/0xc0 [ 35.900441] ksys_ioctl+0xa9/0xd0 [ 35.903886] __x64_sys_ioctl+0x73/0xb0 [ 35.907760] do_syscall_64+0x1b9/0x820 [ 35.911633] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.916985] ? syscall_return_slowpath+0x5e0/0x5e0 [ 35.921904] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.926773] ? trace_hardirqs_on_caller+0x310/0x310 [ 35.931785] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 35.936792] ? prepare_exit_to_usermode+0x291/0x3b0 [ 35.941800] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.946689] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.951869] RIP: 0033:0x440089 [ 35.955045] 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 [ 35.973938] RSP: 002b:00007ffc46b62938 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 35.981632] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440089 [ 35.988888] RDX: 0000000000440089 RSI: 0000000000006611 RDI: 0000000000000003 [ 35.996144] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 36.003403] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401910 [ 36.010660] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 36.017919] Modules linked in: [ 36.021299] ---[ end trace 66f6efaf157df4d5 ]--- [ 36.026082] RIP: 0010:rb_erase+0x306/0x3710 [ 36.030478] 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 [ 36.049438] RSP: 0018:ffff8801d93e6918 EFLAGS: 00010202 [ 36.054811] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.062184] RDX: 1ffff1003b27cd2b RSI: ffffffff8afc08a0 RDI: 0000000000000008 [ 36.069508] RBP: ffff8801d93e7320 R08: dffffc0000000000 R09: fffffbfff12d6a90 [ 36.076764] R10: fffffbfff12d6a90 R11: ffffffff896b5483 R12: ffff8801c44363b0 [ 36.084087] R13: dffffc0000000000 R14: ffff8801d93e72f8 R15: ffff8801d93e7438 [ 36.091393] FS: 0000000001e0a880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 36.099666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.105549] CR2: 0000000020000080 CR3: 00000001d93f3000 CR4: 00000000001406f0 [ 36.112878] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.120215] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.127525] Kernel panic - not syncing: Fatal exception [ 36.133883] Kernel Offset: disabled [ 36.137508] Rebooting in 86400 seconds..