[info] Using makefile-style concurrent boot in runlevel 2. [ 24.042883] audit: type=1800 audit(1539483634.239:21): pid=5179 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.070687] audit: type=1800 audit(1539483634.239:22): pid=5179 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 '10.128.0.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.993641] kasan: CONFIG_KASAN_INLINE enabled [ 52.998377] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.005737] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 53.011953] CPU: 0 PID: 5335 Comm: syz-executor775 Not tainted 4.19.0-rc7+ #260 [ 53.019385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.028729] RIP: 0010:rb_erase+0x306/0x3710 [ 53.033149] 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 [ 53.052073] RSP: 0018:ffff8801d8436918 EFLAGS: 00010202 [ 53.057430] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 53.064686] RDX: 1ffff1003b086d2b RSI: ffffffff8afc4860 RDI: 0000000000000008 [ 53.071940] RBP: ffff8801d8437320 R08: dffffc0000000000 R09: fffffbfff12d6a60 [ 53.079200] R10: fffffbfff12d6a60 R11: ffffffff896b5303 R12: ffff8801b73231f0 [ 53.086449] R13: dffffc0000000000 R14: ffff8801d84372f8 R15: ffff8801d8437438 [ 53.093704] FS: 0000000001a88880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 53.101910] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.107779] CR2: 0000000020000080 CR3: 00000001d89bb000 CR4: 00000000001406f0 [ 53.115034] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.122395] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.129646] Call Trace: [ 53.132222] ? lockdep_on+0x50/0x50 [ 53.135833] ? rb_insert_color+0x1460/0x1460 [ 53.140226] ? noop_count+0x40/0x40 [ 53.143841] ? lock_pin_lock+0x350/0x350 [ 53.147885] ? noop_count+0x40/0x40 [ 53.151495] ? kasan_check_read+0x11/0x20 [ 53.155694] ? noop_count+0x40/0x40 [ 53.159312] ? lock_pin_lock+0x350/0x350 [ 53.163354] ? mark_held_locks+0x130/0x130 [ 53.167572] ? check_usage_forwards+0x3e0/0x3e0 [ 53.172225] ? __bfs+0x385/0x7a0 [ 53.175582] ? noop_count+0x40/0x40 [ 53.179248] ? check_usage+0x1a9/0x790 [ 53.183118] ? lock_pin_lock+0x350/0x350 [ 53.187165] ? check_usage_forwards+0x3e0/0x3e0 [ 53.191883] ? __bfs+0x385/0x7a0 [ 53.195240] ? __lock_acquire+0x7ec/0x4ec0 [ 53.199464] ? lockdep_on+0x50/0x50 [ 53.203194] ? lock_pin_lock+0x350/0x350 [ 53.207253] ? mark_held_locks+0x130/0x130 [ 53.211474] ? kasan_check_read+0x11/0x20 [ 53.215675] ? __lock_acquire+0x2881/0x4ec0 [ 53.219994] ? mark_held_locks+0x130/0x130 [ 53.224212] ? print_usage_bug+0xc0/0xc0 [ 53.228260] ? _raw_spin_unlock+0x2c/0x50 [ 53.232393] ? graph_lock+0x170/0x170 [ 53.236181] ? ext4_exit_mballoc+0xc0/0xc0 [ 53.240401] ? __lock_acquire+0x7ec/0x4ec0 [ 53.244618] ? find_held_lock+0x36/0x1c0 [ 53.248664] ? mark_held_locks+0x130/0x130 [ 53.252883] ? lock_downgrade+0x900/0x900 [ 53.257014] ? ext4_es_scan+0x960/0x960 [ 53.261038] ? lock_release+0x970/0x970 [ 53.265010] ? do_raw_write_trylock+0x1c0/0x1c0 [ 53.269671] ? kasan_check_write+0x14/0x20 [ 53.273893] ? lock_acquire+0x1ed/0x520 [ 53.277852] ? integrity_inode_free+0x77/0x320 [ 53.282417] ? ext4_es_remove_extent+0x151/0x500 [ 53.287158] ? lock_release+0x970/0x970 [ 53.291119] ? kasan_check_write+0x14/0x20 [ 53.295352] ? do_raw_write_lock+0xbd/0x1b0 [ 53.299666] integrity_inode_free+0x12f/0x320 [ 53.304151] security_inode_free+0x19/0x90 [ 53.308372] __destroy_inode+0x328/0x820 [ 53.312417] ? generic_update_time+0x450/0x450 [ 53.316988] ? evict+0x5d8/0x980 [ 53.320341] ? lock_downgrade+0x900/0x900 [ 53.324542] ? __inode_wait_for_writeback+0x2cf/0x380 [ 53.329729] destroy_inode+0xda/0x200 [ 53.333516] ? __destroy_inode+0x820/0x820 [ 53.337736] ? kasan_check_write+0x14/0x20 [ 53.341959] ? do_raw_spin_lock+0xc1/0x200 [ 53.346185] evict+0x5e0/0x980 [ 53.349360] ? destroy_inode+0x200/0x200 [ 53.353403] ? iput+0x671/0xa90 [ 53.356670] ? lock_downgrade+0x900/0x900 [ 53.360807] ? kasan_check_read+0x11/0x20 [ 53.364938] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 53.369510] ? lock_downgrade+0x900/0x900 [ 53.373645] iput+0x679/0xa90 [ 53.376733] ? inode_add_lru+0x2a0/0x2a0 [ 53.380779] ? up_write+0x7b/0x220 [ 53.384300] ? up_read+0x110/0x110 [ 53.387972] ? up_read+0x110/0x110 [ 53.391503] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.397022] ? check_preemption_disabled+0x48/0x200 [ 53.402030] ext4_ioctl+0x236f/0x4210 [ 53.405857] ? is_bpf_text_address+0xac/0x170 [ 53.410345] ? ext4_ioctl_group_add+0x560/0x560 [ 53.415003] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 53.420895] ? kasan_check_read+0x11/0x20 [ 53.425028] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 53.430290] ? rcu_bh_qs+0xc0/0xc0 [ 53.433816] ? rcu_bh_qs+0xc0/0xc0 [ 53.437337] ? unwind_dump+0x190/0x190 [ 53.441210] ? is_bpf_text_address+0xd3/0x170 [ 53.445694] ? kernel_text_address+0x79/0xf0 [ 53.450087] ? __kernel_text_address+0xd/0x40 [ 53.454569] ? unwind_get_return_address+0x61/0xa0 [ 53.459486] ? __save_stack_trace+0x8d/0xf0 [ 53.463883] ? save_stack+0xa9/0xd0 [ 53.467512] ? save_stack+0x43/0xd0 [ 53.471126] ? __kasan_slab_free+0x102/0x150 [ 53.475515] ? kasan_slab_free+0xe/0x10 [ 53.479473] ? kmem_cache_free+0x83/0x290 [ 53.483601] ? putname+0xf2/0x130 [ 53.487038] ? do_sys_open+0x54d/0x700 [ 53.490909] ? __x64_sys_openat+0x9d/0x100 [ 53.495126] ? do_syscall_64+0x1b9/0x820 [ 53.499173] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.504521] ? trace_hardirqs_off+0xb8/0x310 [ 53.508915] ? kasan_check_read+0x11/0x20 [ 53.513053] ? do_raw_spin_unlock+0xa7/0x2f0 [ 53.517443] ? trace_hardirqs_on+0x310/0x310 [ 53.521836] ? kasan_check_write+0x14/0x20 [ 53.526063] ? trace_hardirqs_off+0xb8/0x310 [ 53.530463] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.536162] ? check_preemption_disabled+0x48/0x200 [ 53.541168] ? check_preemption_disabled+0x48/0x200 [ 53.546173] ? ext4_ioctl_group_add+0x560/0x560 [ 53.550829] do_vfs_ioctl+0x1de/0x1720 [ 53.554706] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 53.559978] ? ioctl_preallocate+0x300/0x300 [ 53.564372] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.569891] ? __fget_light+0x2e9/0x430 [ 53.573951] ? fget_raw+0x20/0x20 [ 53.577396] ? putname+0xf2/0x130 [ 53.580833] ? rcu_read_lock_sched_held+0x108/0x120 [ 53.585833] ? kmem_cache_free+0x24f/0x290 [ 53.590053] ? putname+0xf7/0x130 [ 53.593492] ? do_syscall_64+0x9a/0x820 [ 53.597536] ? do_syscall_64+0x9a/0x820 [ 53.601559] ? lockdep_hardirqs_on+0x421/0x5c0 [ 53.606133] ? security_file_ioctl+0x94/0xc0 [ 53.610528] ksys_ioctl+0xa9/0xd0 [ 53.613976] __x64_sys_ioctl+0x73/0xb0 [ 53.617855] do_syscall_64+0x1b9/0x820 [ 53.621732] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 53.627172] ? syscall_return_slowpath+0x5e0/0x5e0 [ 53.632096] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.636925] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.641925] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.646925] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.651931] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.656764] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.661940] RIP: 0033:0x440009 [ 53.665123] 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 [ 53.684013] RSP: 002b:00007ffc387e6d08 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 53.691705] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 53.699049] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 53.706310] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 53.713561] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 53.720812] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 53.728064] Modules linked in: [ 53.731359] ---[ end trace 83a839b568ab7d43 ]--- [ 53.736146] RIP: 0010:rb_erase+0x306/0x3710 [ 53.740583] 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 [ 53.759545] RSP: 0018:ffff8801d8436918 EFLAGS: 00010202 [ 53.764911] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 53.772304] RDX: 1ffff1003b086d2b RSI: ffffffff8afc4860 RDI: 0000000000000008 [ 53.779613] RBP: ffff8801d8437320 R08: dffffc0000000000 R09: fffffbfff12d6a60 [ 53.786881] R10: fffffbfff12d6a60 R11: ffffffff896b5303 R12: ffff8801b73231f0 [ 53.794170] R13: dffffc0000000000 R14: ffff8801d84372f8 R15: ffff8801d8437438 [ 53.801525] FS: 0000000001a88880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 53.809789] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.815666] CR2: 0000000020000080 CR3: 00000001d89bb000 CR4: 00000000001406f0 [ 53.822955] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.830259] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.837521] Kernel panic - not syncing: Fatal exception [ 53.843653] Kernel Offset: disabled [ 53.847273] Rebooting in 86400 seconds..