[info] Using makefile-style concurrent boot in runlevel 2. [ 23.817780] audit: type=1800 audit(1538153257.585:21): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.847062] audit: type=1800 audit(1538153257.585:22): pid=5180 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 '10.128.0.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.955896] kasan: CONFIG_KASAN_INLINE enabled [ 35.960803] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.968169] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.974392] CPU: 1 PID: 5334 Comm: syz-executor800 Not tainted 4.19.0-rc5+ #258 [ 35.981873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.991236] RIP: 0010:rb_erase+0x306/0x3710 [ 35.995545] 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 [ 36.014437] RSP: 0018:ffff8801d8f2e918 EFLAGS: 00010202 [ 36.019789] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.027042] RDX: 1ffff1003b1e5d2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 36.034298] RBP: ffff8801d8f2f320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 36.041651] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b6f611f0 [ 36.048932] R13: dffffc0000000000 R14: ffff8801d8f2f2f8 R15: ffff8801d8f2f438 [ 36.056190] FS: 0000000001d8b880(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 [ 36.064401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.070363] CR2: 0000000020000080 CR3: 00000001d8889000 CR4: 00000000001406e0 [ 36.077689] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.084957] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.092217] Call Trace: [ 36.094791] ? lockdep_on+0x50/0x50 [ 36.098402] ? rb_insert_color+0x1460/0x1460 [ 36.102803] ? noop_count+0x40/0x40 [ 36.106420] ? lock_pin_lock+0x350/0x350 [ 36.110471] ? noop_count+0x40/0x40 [ 36.114172] ? kasan_check_read+0x11/0x20 [ 36.118321] ? noop_count+0x40/0x40 [ 36.121946] ? noop_count+0x40/0x40 [ 36.125557] ? lock_pin_lock+0x350/0x350 [ 36.129612] ? mark_held_locks+0x130/0x130 [ 36.133855] ? check_usage_forwards+0x3e0/0x3e0 [ 36.138508] ? __bfs+0x385/0x7a0 [ 36.141855] ? noop_count+0x40/0x40 [ 36.145465] ? check_usage+0x1a9/0x790 [ 36.149428] ? lock_pin_lock+0x350/0x350 [ 36.153489] ? check_usage_forwards+0x3e0/0x3e0 [ 36.158143] ? __bfs+0x385/0x7a0 [ 36.161505] ? __lock_acquire+0x7ec/0x4ec0 [ 36.165736] ? lockdep_on+0x50/0x50 [ 36.169356] ? lock_pin_lock+0x350/0x350 [ 36.173502] ? mark_held_locks+0x130/0x130 [ 36.177855] ? kasan_check_read+0x11/0x20 [ 36.182082] ? __lock_acquire+0x2881/0x4ec0 [ 36.186463] ? mark_held_locks+0x130/0x130 [ 36.190691] ? print_usage_bug+0xc0/0xc0 [ 36.194738] ? _raw_spin_unlock+0x2c/0x50 [ 36.198966] ? graph_lock+0x170/0x170 [ 36.202763] ? ext4_exit_mballoc+0xc0/0xc0 [ 36.206996] ? __lock_acquire+0x7ec/0x4ec0 [ 36.211223] ? find_held_lock+0x36/0x1c0 [ 36.215272] ? mark_held_locks+0x130/0x130 [ 36.219494] ? lock_downgrade+0x900/0x900 [ 36.223696] ? ext4_es_scan+0x960/0x960 [ 36.227669] ? do_raw_write_trylock+0x1c0/0x1c0 [ 36.232331] ? kasan_check_write+0x14/0x20 [ 36.236554] ? lock_acquire+0x1ed/0x520 [ 36.240515] ? integrity_inode_free+0x77/0x320 [ 36.245095] ? ext4_es_remove_extent+0x151/0x500 [ 36.249842] ? lock_release+0x970/0x970 [ 36.253802] ? kasan_check_write+0x14/0x20 [ 36.258048] ? do_raw_write_lock+0xbd/0x1b0 [ 36.262358] integrity_inode_free+0x12f/0x320 [ 36.266958] security_inode_free+0x19/0x90 [ 36.271185] __destroy_inode+0x328/0x820 [ 36.275235] ? generic_update_time+0x450/0x450 [ 36.279930] ? evict+0x5d8/0x980 [ 36.283351] ? lock_downgrade+0x900/0x900 [ 36.287502] ? __inode_wait_for_writeback+0x2cf/0x380 [ 36.292712] destroy_inode+0xda/0x200 [ 36.296516] ? __destroy_inode+0x820/0x820 [ 36.300746] ? kasan_check_write+0x14/0x20 [ 36.304968] ? do_raw_spin_lock+0xc1/0x200 [ 36.309196] evict+0x5e0/0x980 [ 36.312376] ? destroy_inode+0x200/0x200 [ 36.316422] ? iput+0x671/0xa90 [ 36.319688] ? lock_downgrade+0x900/0x900 [ 36.323820] ? kasan_check_read+0x11/0x20 [ 36.328060] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 36.332631] ? lock_downgrade+0x900/0x900 [ 36.336764] iput+0x679/0xa90 [ 36.339948] ? inode_add_lru+0x2a0/0x2a0 [ 36.344041] ? up_write+0x7b/0x220 [ 36.347560] ? up_read+0x110/0x110 [ 36.351079] ? up_read+0x110/0x110 [ 36.354603] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.360130] ? check_preemption_disabled+0x48/0x200 [ 36.365131] ext4_ioctl+0x236f/0x4210 [ 36.368926] ? is_bpf_text_address+0xac/0x170 [ 36.373472] ? ext4_ioctl_group_add+0x560/0x560 [ 36.378138] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 36.383987] ? kasan_check_read+0x11/0x20 [ 36.388130] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.393395] ? rcu_bh_qs+0xc0/0xc0 [ 36.396928] ? rcu_bh_qs+0xc0/0xc0 [ 36.400456] ? unwind_dump+0x190/0x190 [ 36.404337] ? is_bpf_text_address+0xd3/0x170 [ 36.408818] ? kernel_text_address+0x79/0xf0 [ 36.413209] ? __kernel_text_address+0xd/0x40 [ 36.417688] ? unwind_get_return_address+0x61/0xa0 [ 36.422603] ? __save_stack_trace+0x8d/0xf0 [ 36.426913] ? save_stack+0xa9/0xd0 [ 36.430534] ? save_stack+0x43/0xd0 [ 36.434142] ? __kasan_slab_free+0x102/0x150 [ 36.438534] ? kasan_slab_free+0xe/0x10 [ 36.442492] ? kmem_cache_free+0x83/0x290 [ 36.446617] ? putname+0xf2/0x130 [ 36.450053] ? do_sys_open+0x54d/0x700 [ 36.453929] ? __x64_sys_openat+0x9d/0x100 [ 36.458274] ? do_syscall_64+0x1b9/0x820 [ 36.462333] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.467684] ? trace_hardirqs_off+0xb8/0x310 [ 36.472188] ? kasan_check_read+0x11/0x20 [ 36.476322] ? do_raw_spin_unlock+0xa7/0x2f0 [ 36.480719] ? trace_hardirqs_on+0x310/0x310 [ 36.485120] ? kasan_check_write+0x14/0x20 [ 36.489341] ? trace_hardirqs_off+0xb8/0x310 [ 36.493733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.499256] ? check_preemption_disabled+0x48/0x200 [ 36.504261] ? check_preemption_disabled+0x48/0x200 [ 36.509269] ? ext4_ioctl_group_add+0x560/0x560 [ 36.513930] do_vfs_ioctl+0x1de/0x1720 [ 36.517806] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 36.523083] ? ioctl_preallocate+0x300/0x300 [ 36.527495] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 36.533022] ? __fget_light+0x2e9/0x430 [ 36.536998] ? fget_raw+0x20/0x20 [ 36.540518] ? putname+0xf2/0x130 [ 36.543967] ? rcu_read_lock_sched_held+0x108/0x120 [ 36.548970] ? kmem_cache_free+0x24f/0x290 [ 36.553187] ? putname+0xf7/0x130 [ 36.556624] ? do_syscall_64+0x9a/0x820 [ 36.560586] ? do_syscall_64+0x9a/0x820 [ 36.564551] ? lockdep_hardirqs_on+0x421/0x5c0 [ 36.569120] ? security_file_ioctl+0x94/0xc0 [ 36.573522] ksys_ioctl+0xa9/0xd0 [ 36.576966] __x64_sys_ioctl+0x73/0xb0 [ 36.580836] do_syscall_64+0x1b9/0x820 [ 36.584706] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.590054] ? syscall_return_slowpath+0x5e0/0x5e0 [ 36.595203] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.600051] ? trace_hardirqs_on_caller+0x310/0x310 [ 36.605376] ? prepare_exit_to_usermode+0x291/0x3b0 [ 36.610383] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.615213] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.620913] RIP: 0033:0x440089 [ 36.624102] 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 [ 36.642993] RSP: 002b:00007ffde459d5a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 36.650696] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440089 [ 36.657968] RDX: 0000000000440089 RSI: 0000000000006611 RDI: 0000000000000003 [ 36.665326] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 36.672675] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401910 [ 36.680006] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 36.687360] Modules linked in: [ 36.690616] ---[ end trace 637957edfc8bec88 ]--- [ 36.695383] RIP: 0010:rb_erase+0x306/0x3710 [ 36.699749] 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 [ 36.718703] RSP: 0018:ffff8801d8f2e918 EFLAGS: 00010202 [ 36.724066] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.731359] RDX: 1ffff1003b1e5d2b RSI: ffffffff8b5a08a0 RDI: 0000000000000008 [ 36.738684] RBP: ffff8801d8f2f320 R08: dffffc0000000000 R09: fffffbfff135d5c8 [ 36.745960] R10: fffffbfff135d5c8 R11: ffffffff89aeae43 R12: ffff8801b6f611f0 [ 36.753337] R13: dffffc0000000000 R14: ffff8801d8f2f2f8 R15: ffff8801d8f2f438 [ 36.760652] FS: 0000000001d8b880(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 [ 36.768952] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.774888] CR2: 0000000020000080 CR3: 00000001d8889000 CR4: 00000000001406e0 [ 36.782227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.789537] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.796812] Kernel panic - not syncing: Fatal exception [ 36.803258] Kernel Offset: disabled [ 36.806960] Rebooting in 86400 seconds..