[info] Using makefile-style concurrent boot in runlevel 2. [ 23.890425] audit: type=1800 audit(1539528635.883:21): pid=5185 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.917488] audit: type=1800 audit(1539528635.883:22): pid=5185 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 '10.128.10.26' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.355247] kasan: CONFIG_KASAN_INLINE enabled [ 47.359980] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.367372] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 47.373589] CPU: 1 PID: 5341 Comm: syz-executor517 Not tainted 4.19.0-rc7+ #260 [ 47.381014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.390359] RIP: 0010:rb_erase+0x306/0x3710 [ 47.394664] 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 [ 47.413562] RSP: 0018:ffff8801d8f1e918 EFLAGS: 00010202 [ 47.418906] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 47.426157] RDX: 1ffff1003b1e3d2b RSI: ffffffff8afc4860 RDI: 0000000000000008 [ 47.433506] RBP: ffff8801d8f1f320 R08: dffffc0000000000 R09: fffffbfff12d6a60 [ 47.440758] R10: fffffbfff12d6a60 R11: ffffffff896b5303 R12: ffff8801b77721f0 [ 47.448006] R13: dffffc0000000000 R14: ffff8801d8f1f2f8 R15: ffff8801d8f1f438 [ 47.455259] FS: 0000000001da2880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 47.463695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.469568] CR2: 0000000020000080 CR3: 00000001d853d000 CR4: 00000000001406e0 [ 47.476822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.484075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.491338] Call Trace: [ 47.493912] ? lockdep_on+0x50/0x50 [ 47.497550] ? rb_insert_color+0x1460/0x1460 [ 47.501944] ? noop_count+0x40/0x40 [ 47.505562] ? lock_pin_lock+0x350/0x350 [ 47.509608] ? noop_count+0x40/0x40 [ 47.513217] ? kasan_check_read+0x11/0x20 [ 47.517359] ? noop_count+0x40/0x40 [ 47.520975] ? noop_count+0x40/0x40 [ 47.524582] ? lock_pin_lock+0x350/0x350 [ 47.528627] ? mark_held_locks+0x130/0x130 [ 47.532846] ? check_usage_forwards+0x3e0/0x3e0 [ 47.537509] ? __bfs+0x385/0x7a0 [ 47.540873] ? noop_count+0x40/0x40 [ 47.544489] ? check_usage+0x1a9/0x790 [ 47.548365] ? lock_pin_lock+0x350/0x350 [ 47.552425] ? check_usage_forwards+0x3e0/0x3e0 [ 47.557084] ? __bfs+0x385/0x7a0 [ 47.560454] ? __lock_acquire+0x7ec/0x4ec0 [ 47.564671] ? lockdep_on+0x50/0x50 [ 47.568279] ? lock_pin_lock+0x350/0x350 [ 47.572343] ? mark_held_locks+0x130/0x130 [ 47.576565] ? kasan_check_read+0x11/0x20 [ 47.580696] ? __lock_acquire+0x2881/0x4ec0 [ 47.585005] ? mark_held_locks+0x130/0x130 [ 47.589225] ? print_usage_bug+0xc0/0xc0 [ 47.593552] ? _raw_spin_unlock+0x2c/0x50 [ 47.597686] ? graph_lock+0x170/0x170 [ 47.601471] ? ext4_exit_mballoc+0xc0/0xc0 [ 47.605701] ? __lock_acquire+0x7ec/0x4ec0 [ 47.609920] ? find_held_lock+0x36/0x1c0 [ 47.613971] ? mark_held_locks+0x130/0x130 [ 47.618185] ? lock_downgrade+0x900/0x900 [ 47.622316] ? ext4_es_scan+0x960/0x960 [ 47.626275] ? do_raw_write_trylock+0x1c0/0x1c0 [ 47.630929] ? kasan_check_write+0x14/0x20 [ 47.635156] ? lock_acquire+0x1ed/0x520 [ 47.639114] ? integrity_inode_free+0x77/0x320 [ 47.643677] ? ext4_es_remove_extent+0x151/0x500 [ 47.648421] ? lock_release+0x970/0x970 [ 47.652397] ? kasan_check_write+0x14/0x20 [ 47.656620] ? do_raw_write_lock+0xbd/0x1b0 [ 47.660941] integrity_inode_free+0x12f/0x320 [ 47.665437] security_inode_free+0x19/0x90 [ 47.669658] __destroy_inode+0x328/0x820 [ 47.673701] ? generic_update_time+0x450/0x450 [ 47.678266] ? evict+0x5d8/0x980 [ 47.681623] ? lock_downgrade+0x900/0x900 [ 47.685750] ? __inode_wait_for_writeback+0x2cf/0x380 [ 47.690925] destroy_inode+0xda/0x200 [ 47.694730] ? __destroy_inode+0x820/0x820 [ 47.698946] ? kasan_check_write+0x14/0x20 [ 47.703167] ? do_raw_spin_lock+0xc1/0x200 [ 47.707386] evict+0x5e0/0x980 [ 47.710563] ? destroy_inode+0x200/0x200 [ 47.714607] ? iput+0x671/0xa90 [ 47.717866] ? lock_downgrade+0x900/0x900 [ 47.721998] ? kasan_check_read+0x11/0x20 [ 47.726130] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 47.730697] ? lock_downgrade+0x900/0x900 [ 47.734829] iput+0x679/0xa90 [ 47.737916] ? inode_add_lru+0x2a0/0x2a0 [ 47.741979] ? up_write+0x7b/0x220 [ 47.745500] ? up_read+0x110/0x110 [ 47.749022] ? up_read+0x110/0x110 [ 47.752550] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.758067] ? check_preemption_disabled+0x48/0x200 [ 47.763071] ext4_ioctl+0x236f/0x4210 [ 47.766857] ? is_bpf_text_address+0xac/0x170 [ 47.771337] ? ext4_ioctl_group_add+0x560/0x560 [ 47.776004] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 47.781796] ? kasan_check_read+0x11/0x20 [ 47.785929] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 47.791190] ? rcu_bh_qs+0xc0/0xc0 [ 47.794727] ? rcu_bh_qs+0xc0/0xc0 [ 47.798251] ? unwind_dump+0x190/0x190 [ 47.802124] ? is_bpf_text_address+0xd3/0x170 [ 47.806602] ? kernel_text_address+0x79/0xf0 [ 47.810993] ? __kernel_text_address+0xd/0x40 [ 47.815474] ? unwind_get_return_address+0x61/0xa0 [ 47.820388] ? __save_stack_trace+0x8d/0xf0 [ 47.824695] ? save_stack+0xa9/0xd0 [ 47.828301] ? save_stack+0x43/0xd0 [ 47.831912] ? __kasan_slab_free+0x102/0x150 [ 47.836299] ? kasan_slab_free+0xe/0x10 [ 47.840257] ? kmem_cache_free+0x83/0x290 [ 47.844392] ? putname+0xf2/0x130 [ 47.847827] ? do_sys_open+0x54d/0x700 [ 47.851699] ? __x64_sys_openat+0x9d/0x100 [ 47.855922] ? do_syscall_64+0x1b9/0x820 [ 47.859973] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.865410] ? trace_hardirqs_off+0xb8/0x310 [ 47.869807] ? kasan_check_read+0x11/0x20 [ 47.873941] ? do_raw_spin_unlock+0xa7/0x2f0 [ 47.878352] ? trace_hardirqs_on+0x310/0x310 [ 47.882755] ? kasan_check_write+0x14/0x20 [ 47.886978] ? trace_hardirqs_off+0xb8/0x310 [ 47.891370] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.896886] ? check_preemption_disabled+0x48/0x200 [ 47.901881] ? check_preemption_disabled+0x48/0x200 [ 47.906879] ? ext4_ioctl_group_add+0x560/0x560 [ 47.911572] do_vfs_ioctl+0x1de/0x1720 [ 47.915452] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 47.920715] ? ioctl_preallocate+0x300/0x300 [ 47.925105] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.930624] ? __fget_light+0x2e9/0x430 [ 47.934586] ? fget_raw+0x20/0x20 [ 47.938019] ? putname+0xf2/0x130 [ 47.941457] ? rcu_read_lock_sched_held+0x108/0x120 [ 47.946458] ? kmem_cache_free+0x24f/0x290 [ 47.950677] ? putname+0xf7/0x130 [ 47.954114] ? do_syscall_64+0x9a/0x820 [ 47.958070] ? do_syscall_64+0x9a/0x820 [ 47.962041] ? lockdep_hardirqs_on+0x421/0x5c0 [ 47.966607] ? security_file_ioctl+0x94/0xc0 [ 47.970998] ksys_ioctl+0xa9/0xd0 [ 47.974443] __x64_sys_ioctl+0x73/0xb0 [ 47.978312] do_syscall_64+0x1b9/0x820 [ 47.982183] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 47.987526] ? syscall_return_slowpath+0x5e0/0x5e0 [ 47.992443] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.997271] ? trace_hardirqs_on_caller+0x310/0x310 [ 48.002269] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 48.007267] ? prepare_exit_to_usermode+0x291/0x3b0 [ 48.012268] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.017094] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 48.022276] RIP: 0033:0x440009 [ 48.025458] 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 [ 48.044344] RSP: 002b:00007fff81afd0a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 48.052035] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 48.059285] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 48.066537] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 48.073793] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 48.081047] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 48.088307] Modules linked in: [ 48.091636] ---[ end trace bfe39fd8964643f0 ]--- [ 48.096418] RIP: 0010:rb_erase+0x306/0x3710 [ 48.100817] 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 [ 48.119757] RSP: 0018:ffff8801d8f1e918 EFLAGS: 00010202 [ 48.125129] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 48.132424] RDX: 1ffff1003b1e3d2b RSI: ffffffff8afc4860 RDI: 0000000000000008 [ 48.139718] RBP: ffff8801d8f1f320 R08: dffffc0000000000 R09: fffffbfff12d6a60 [ 48.146990] R10: fffffbfff12d6a60 R11: ffffffff896b5303 R12: ffff8801b77721f0 [ 48.154280] R13: dffffc0000000000 R14: ffff8801d8f1f2f8 R15: ffff8801d8f1f438 [ 48.161572] FS: 0000000001da2880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 48.169830] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.175711] CR2: 0000000020000080 CR3: 00000001d853d000 CR4: 00000000001406e0 [ 48.183018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.190314] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.197571] Kernel panic - not syncing: Fatal exception [ 48.203806] Kernel Offset: disabled [ 48.207434] Rebooting in 86400 seconds..