[info] Using makefile-style concurrent boot in runlevel 2. [ 23.903641] audit: type=1800 audit(1537910320.379:21): pid=5178 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.930797] audit: type=1800 audit(1537910320.379:22): pid=5178 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 '10.128.0.102' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 64.899682] kasan: CONFIG_KASAN_INLINE enabled [ 64.904578] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 64.911950] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 64.918169] CPU: 0 PID: 5336 Comm: syz-executor564 Not tainted 4.19.0-rc5+ #31 [ 64.925510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.934972] RIP: 0010:rb_erase+0x306/0x3710 [ 64.939297] 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 [ 64.958188] RSP: 0018:ffff8801d782e918 EFLAGS: 00010202 [ 64.963533] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 64.970783] RDX: 1ffff1003af05d2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 64.978032] RBP: ffff8801d782f320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 64.985281] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b677f1f0 [ 64.992536] R13: dffffc0000000000 R14: ffff8801d782f2f8 R15: ffff8801d782f438 [ 64.999792] FS: 0000000002278880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 65.007998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.013862] CR2: 0000000020000700 CR3: 00000001d84b2000 CR4: 00000000001406f0 [ 65.021323] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.028574] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.035822] Call Trace: [ 65.038555] ? lockdep_on+0x50/0x50 [ 65.042170] ? rb_insert_color+0x1460/0x1460 [ 65.046564] ? noop_count+0x40/0x40 [ 65.050170] ? lock_pin_lock+0x350/0x350 [ 65.054213] ? noop_count+0x40/0x40 [ 65.057820] ? kasan_check_read+0x11/0x20 [ 65.061947] ? noop_count+0x40/0x40 [ 65.065555] ? noop_count+0x40/0x40 [ 65.069161] ? lock_pin_lock+0x350/0x350 [ 65.073203] ? mark_held_locks+0x130/0x130 [ 65.077492] ? check_usage_forwards+0x3e0/0x3e0 [ 65.082293] ? __bfs+0x385/0x7a0 [ 65.085639] ? noop_count+0x40/0x40 [ 65.089247] ? check_usage+0x1a9/0x790 [ 65.093118] ? lock_pin_lock+0x350/0x350 [ 65.097164] ? check_usage_forwards+0x3e0/0x3e0 [ 65.101814] ? __bfs+0x385/0x7a0 [ 65.105161] ? __lock_acquire+0x7ec/0x4ec0 [ 65.109375] ? lockdep_on+0x50/0x50 [ 65.112985] ? lock_pin_lock+0x350/0x350 [ 65.117030] ? mark_held_locks+0x130/0x130 [ 65.121247] ? kasan_check_read+0x11/0x20 [ 65.125454] ? __lock_acquire+0x2881/0x4ec0 [ 65.129880] ? mark_held_locks+0x130/0x130 [ 65.134101] ? print_usage_bug+0xc0/0xc0 [ 65.138147] ? _raw_spin_unlock+0x2c/0x50 [ 65.142292] ? graph_lock+0x170/0x170 [ 65.146079] ? ext4_exit_mballoc+0xc0/0xc0 [ 65.150302] ? __lock_acquire+0x7ec/0x4ec0 [ 65.154525] ? find_held_lock+0x36/0x1c0 [ 65.158577] ? mark_held_locks+0x130/0x130 [ 65.162858] ? lock_downgrade+0x900/0x900 [ 65.166996] ? ext4_es_scan+0x960/0x960 [ 65.170951] ? lock_release+0x970/0x970 [ 65.174918] ? do_raw_write_trylock+0x1c0/0x1c0 [ 65.179571] ? kasan_check_write+0x14/0x20 [ 65.183786] ? lock_acquire+0x1ed/0x520 [ 65.187745] ? integrity_inode_free+0x77/0x320 [ 65.192406] ? ext4_es_remove_extent+0x151/0x500 [ 65.197148] ? lock_release+0x970/0x970 [ 65.201110] ? kasan_check_write+0x14/0x20 [ 65.205329] ? do_raw_write_lock+0xbd/0x1b0 [ 65.209634] integrity_inode_free+0x12f/0x320 [ 65.214114] security_inode_free+0x19/0x90 [ 65.218327] __destroy_inode+0x328/0x820 [ 65.222371] ? generic_update_time+0x450/0x450 [ 65.226931] ? evict+0x5d8/0x980 [ 65.230275] ? lock_downgrade+0x900/0x900 [ 65.234413] ? __inode_wait_for_writeback+0x2cf/0x380 [ 65.239722] destroy_inode+0xda/0x200 [ 65.243506] ? __destroy_inode+0x820/0x820 [ 65.247829] ? kasan_check_write+0x14/0x20 [ 65.252069] ? do_raw_spin_lock+0xc1/0x200 [ 65.256461] evict+0x5e0/0x980 [ 65.259643] ? destroy_inode+0x200/0x200 [ 65.263687] ? iput+0x671/0xa90 [ 65.266947] ? lock_downgrade+0x900/0x900 [ 65.271075] ? kasan_check_read+0x11/0x20 [ 65.275312] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 65.279891] ? lock_downgrade+0x900/0x900 [ 65.284042] iput+0x679/0xa90 [ 65.287132] ? inode_add_lru+0x2a0/0x2a0 [ 65.291172] ? up_write+0x7b/0x220 [ 65.294692] ? up_read+0x110/0x110 [ 65.298225] ? up_read+0x110/0x110 [ 65.301744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.307476] ? check_preemption_disabled+0x48/0x200 [ 65.312483] ext4_ioctl+0x236f/0x4210 [ 65.316339] ? ext4_ioctl_group_add+0x560/0x560 [ 65.321008] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 65.326877] ? kasan_check_read+0x11/0x20 [ 65.331010] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 65.336268] ? rcu_bh_qs+0xc0/0xc0 [ 65.339793] ? rcu_bh_qs+0xc0/0xc0 [ 65.343317] ? unwind_dump+0x190/0x190 [ 65.347272] ? is_bpf_text_address+0xd3/0x170 [ 65.351758] ? kernel_text_address+0x79/0xf0 [ 65.356200] ? __kernel_text_address+0xd/0x40 [ 65.360687] ? unwind_get_return_address+0x61/0xa0 [ 65.365604] ? __save_stack_trace+0x8d/0xf0 [ 65.369985] ? save_stack+0xa9/0xd0 [ 65.373654] ? save_stack+0x43/0xd0 [ 65.377276] ? __kasan_slab_free+0x102/0x150 [ 65.381740] ? kasan_slab_free+0xe/0x10 [ 65.385704] ? kmem_cache_free+0x83/0x290 [ 65.389834] ? putname+0xf2/0x130 [ 65.393279] ? do_sys_open+0x54d/0x700 [ 65.397146] ? __x64_sys_open+0x7e/0xc0 [ 65.401104] ? do_syscall_64+0x1b9/0x820 [ 65.405152] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.410502] ? trace_hardirqs_off+0xb8/0x310 [ 65.414889] ? kasan_check_read+0x11/0x20 [ 65.419019] ? do_raw_spin_unlock+0xa7/0x2f0 [ 65.423408] ? trace_hardirqs_on+0x310/0x310 [ 65.427794] ? kasan_check_write+0x14/0x20 [ 65.432017] ? trace_hardirqs_off+0xb8/0x310 [ 65.436420] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.442025] ? check_preemption_disabled+0x48/0x200 [ 65.447049] ? ext4_ioctl_group_add+0x560/0x560 [ 65.451715] do_vfs_ioctl+0x1de/0x1720 [ 65.455596] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 65.461113] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 65.466445] ? ioctl_preallocate+0x300/0x300 [ 65.470840] ? memset+0x31/0x40 [ 65.474111] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.479632] ? smack_file_ioctl+0x210/0x3c0 [ 65.483932] ? fget_raw+0x20/0x20 [ 65.487364] ? smack_file_lock+0x2e0/0x2e0 [ 65.491574] ? rcu_read_lock_sched_held+0x108/0x120 [ 65.496580] ? do_syscall_64+0x9a/0x820 [ 65.500536] ? do_syscall_64+0x9a/0x820 [ 65.504492] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.510009] ? security_file_ioctl+0x94/0xc0 [ 65.514401] ksys_ioctl+0xa9/0xd0 [ 65.517836] __x64_sys_ioctl+0x73/0xb0 [ 65.521724] do_syscall_64+0x1b9/0x820 [ 65.525823] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 65.531176] ? syscall_return_slowpath+0x5e0/0x5e0 [ 65.536089] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.540915] ? trace_hardirqs_on_caller+0x310/0x310 [ 65.545915] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 65.550916] ? prepare_exit_to_usermode+0x291/0x3b0 [ 65.555916] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.560747] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.565920] RIP: 0033:0x440029 [ 65.569096] 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 [ 65.587980] RSP: 002b:00007ffdcb8f20d8 EFLAGS: 00000217 ORIG_RAX: 0000000000000010 [ 65.595669] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440029 [ 65.602917] RDX: 0000000000440029 RSI: 0000000000006611 RDI: 0000000000000004 [ 65.610274] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 65.617525] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018b0 [ 65.624850] R13: 0000000000401940 R14: 0000000000000000 R15: 0000000000000000 [ 65.632117] Modules linked in: [ 65.635412] ---[ end trace 07a7abe879deb9f2 ]--- [ 65.640183] RIP: 0010:rb_erase+0x306/0x3710 [ 65.644614] 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 [ 65.663634] RSP: 0018:ffff8801d782e918 EFLAGS: 00010202 [ 65.669004] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 65.676592] RDX: 1ffff1003af05d2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 65.683900] RBP: ffff8801d782f320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 65.691171] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b677f1f0 [ 65.698492] R13: dffffc0000000000 R14: ffff8801d782f2f8 R15: ffff8801d782f438 [ 65.705855] FS: 0000000002278880(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 [ 65.714201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.720580] CR2: 0000000020000700 CR3: 00000001d84b2000 CR4: 00000000001406f0 [ 65.727909] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.735215] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.742519] Kernel panic - not syncing: Fatal exception [ 65.748818] Kernel Offset: disabled [ 65.752453] Rebooting in 86400 seconds..