[info] Using makefile-style concurrent boot in runlevel 2. [ 23.803807] audit: type=1800 audit(1540424162.714:21): pid=5175 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.831502] audit: type=1800 audit(1540424162.714:22): pid=5175 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 '10.128.0.99' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 51.230537] kasan: CONFIG_KASAN_INLINE enabled [ 51.235294] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 51.242657] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 51.248879] CPU: 1 PID: 5333 Comm: syz-executor978 Not tainted 4.19.0+ #301 [ 51.255957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.265306] RIP: 0010:rb_erase+0x306/0x3710 [ 51.269637] 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 [ 51.288533] RSP: 0018:ffff8801d8e76918 EFLAGS: 00010202 [ 51.293893] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 51.301151] RDX: 1ffff1003b1ced2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 51.308415] RBP: ffff8801d8e77320 R08: dffffc0000000000 R09: ffffed003b1cee53 [ 51.315668] R10: ffffed003b1cee53 R11: 0000000000000003 R12: ffff8801b774a970 [ 51.322921] R13: dffffc0000000000 R14: ffff8801d8e772f8 R15: ffff8801d8e77438 [ 51.330173] FS: 0000000001227880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 51.338382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.344246] CR2: 0000000020002000 CR3: 00000001bb46d000 CR4: 00000000001406e0 [ 51.351500] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.358753] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.366004] Call Trace: [ 51.368581] ? modules_open+0xa0/0xa0 [ 51.372369] ? rb_insert_color+0x1460/0x1460 [ 51.376762] ? print_bfs_bug+0x80/0x80 [ 51.380634] ? noop_count+0x40/0x40 [ 51.384246] ? print_bfs_bug+0x80/0x80 [ 51.388147] ? mark_held_locks+0x130/0x130 [ 51.392367] ? __lock_acquire+0x2aff/0x4c20 [ 51.396674] ? kernel_text_address+0x79/0xf0 [ 51.401072] ? noop_count+0x40/0x40 [ 51.404685] ? print_bfs_bug+0x80/0x80 [ 51.408554] ? noop_count+0x40/0x40 [ 51.412164] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.417690] ? check_usage_forwards+0x3d0/0x3d0 [ 51.422339] ? __bfs+0x321/0x780 [ 51.425691] ? check_usage+0x1aa/0x790 [ 51.429561] ? print_bfs_bug+0x80/0x80 [ 51.433443] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 51.438363] ? check_usage_forwards+0x3d0/0x3d0 [ 51.443016] ? kasan_check_read+0x11/0x20 [ 51.447150] ? graph_lock+0x9c/0x270 [ 51.450845] ? __bfs+0x321/0x780 [ 51.454194] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 51.460062] ? lockdep_on+0x50/0x50 [ 51.463693] ? print_bfs_bug+0x80/0x80 [ 51.467566] ? kasan_check_read+0x11/0x20 [ 51.471696] ? graph_lock+0x9c/0x270 [ 51.475413] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 51.481284] ? mark_held_locks+0x130/0x130 [ 51.485509] ? kasan_check_read+0x11/0x20 [ 51.489642] ? __lock_acquire+0x2aff/0x4c20 [ 51.493955] ? mark_held_locks+0x130/0x130 [ 51.498175] ? print_usage_bug+0xc0/0xc0 [ 51.502218] ? print_usage_bug+0xc0/0xc0 [ 51.506264] ? __lock_acquire+0x62f/0x4c20 [ 51.510482] ? zap_class+0x640/0x640 [ 51.514181] ? print_usage_bug+0xc0/0xc0 [ 51.518226] ? __lock_acquire+0x62f/0x4c20 [ 51.522445] ? mark_held_locks+0x130/0x130 [ 51.526661] ? lock_downgrade+0x900/0x900 [ 51.530802] ? ext4_es_scan+0x960/0x960 [ 51.534762] ? kasan_check_read+0x11/0x20 [ 51.538924] ? do_raw_write_lock+0x14f/0x310 [ 51.543316] ? do_raw_write_trylock+0x270/0x270 [ 51.547974] ? lock_acquire+0x1ed/0x520 [ 51.551949] ? integrity_inode_free+0x77/0x320 [ 51.556518] ? ext4_es_remove_extent+0x151/0x500 [ 51.561280] ? kasan_check_read+0x11/0x20 [ 51.565414] ? do_raw_write_lock+0x14f/0x310 [ 51.569804] ? do_raw_read_unlock+0x70/0x70 [ 51.574144] ? zap_class+0x640/0x640 [ 51.577864] integrity_inode_free+0x12f/0x320 [ 51.582347] security_inode_free+0x19/0x90 [ 51.586571] __destroy_inode+0x328/0x820 [ 51.590616] ? clear_nlink+0xe0/0xe0 [ 51.594327] ? evict+0x5d8/0x980 [ 51.597698] ? lock_downgrade+0x900/0x900 [ 51.601831] ? __inode_wait_for_writeback+0x2cf/0x380 [ 51.607009] destroy_inode+0xda/0x200 [ 51.610792] ? __destroy_inode+0x820/0x820 [ 51.615014] evict+0x5e0/0x980 [ 51.618196] ? destroy_inode+0x200/0x200 [ 51.622259] ? iput+0x671/0xa90 [ 51.625537] ? lock_downgrade+0x900/0x900 [ 51.629670] ? kasan_check_read+0x11/0x20 [ 51.633807] ? do_raw_spin_trylock+0x270/0x270 [ 51.638374] ? lock_downgrade+0x900/0x900 [ 51.642509] iput+0x679/0xa90 [ 51.645602] ? inode_add_lru+0x2a0/0x2a0 [ 51.649650] ? up_write+0x7b/0x220 [ 51.653172] ? down_write_nested+0x130/0x130 [ 51.657582] ? down_write_nested+0x130/0x130 [ 51.661974] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.667498] ? check_preemption_disabled+0x48/0x280 [ 51.672503] ext4_ioctl+0x236f/0x4210 [ 51.676293] ? ext4_ioctl_group_add+0x560/0x560 [ 51.680950] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 51.685867] ? kasan_check_read+0x11/0x20 [ 51.690005] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 51.695270] ? rcu_softirq_qs+0x20/0x20 [ 51.699227] ? rcu_softirq_qs+0x20/0x20 [ 51.703185] ? unwind_dump+0x190/0x190 [ 51.707062] ? is_bpf_text_address+0xd3/0x170 [ 51.711539] ? kernel_text_address+0x79/0xf0 [ 51.715930] ? __kernel_text_address+0xd/0x40 [ 51.720409] ? unwind_get_return_address+0x61/0xa0 [ 51.725322] ? __save_stack_trace+0x8d/0xf0 [ 51.729630] ? save_stack+0xa9/0xd0 [ 51.733237] ? save_stack+0x43/0xd0 [ 51.736845] ? __kasan_slab_free+0x102/0x150 [ 51.741236] ? kasan_slab_free+0xe/0x10 [ 51.745193] ? kmem_cache_free+0x83/0x290 [ 51.749325] ? putname+0xf2/0x130 [ 51.752773] ? do_sys_open+0x54d/0x700 [ 51.756662] ? __x64_sys_open+0x7e/0xc0 [ 51.760630] ? do_syscall_64+0x1b9/0x820 [ 51.764680] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.770029] ? trace_hardirqs_off+0xb8/0x310 [ 51.774420] ? kasan_check_read+0x11/0x20 [ 51.778572] ? do_raw_spin_unlock+0xa7/0x330 [ 51.782963] ? trace_hardirqs_on+0x310/0x310 [ 51.787357] ? trace_hardirqs_off+0xb8/0x310 [ 51.791752] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.797278] ? ext4_ioctl_group_add+0x560/0x560 [ 51.801946] do_vfs_ioctl+0x1de/0x1720 [ 51.805839] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 51.811375] ? ioctl_preallocate+0x300/0x300 [ 51.815783] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.821305] ? __fget_light+0x2e9/0x430 [ 51.825266] ? fget_raw+0x20/0x20 [ 51.828707] ? rcu_read_lock_sched_held+0x14f/0x180 [ 51.833707] ? kmem_cache_free+0x24f/0x290 [ 51.837929] ? putname+0xf7/0x130 [ 51.841367] ? do_syscall_64+0x9a/0x820 [ 51.845325] ? do_syscall_64+0x9a/0x820 [ 51.849282] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 51.853852] ? security_file_ioctl+0x94/0xc0 [ 51.858247] ksys_ioctl+0xa9/0xd0 [ 51.861707] __x64_sys_ioctl+0x73/0xb0 [ 51.865581] do_syscall_64+0x1b9/0x820 [ 51.869471] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.874842] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.879755] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.884582] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.889582] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.894581] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.899580] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.904411] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.909581] RIP: 0033:0x43fff9 [ 51.912771] 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 [ 51.931657] RSP: 002b:00007ffdcc27ea28 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 51.939383] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fff9 [ 51.946635] RDX: 000000000043fff9 RSI: 0000000000006611 RDI: 0000000000000003 [ 51.953887] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 51.961157] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401880 [ 51.968410] R13: 0000000000401910 R14: 0000000000000000 R15: 0000000000000000 [ 51.975692] Modules linked in: [ 51.979085] ---[ end trace 44faf6742aaf37ca ]--- [ 51.983906] RIP: 0010:rb_erase+0x306/0x3710 [ 51.988234] 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 [ 52.007197] RSP: 0018:ffff8801d8e76918 EFLAGS: 00010202 [ 52.012565] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 52.019870] RDX: 1ffff1003b1ced2b RSI: ffffffff8af92020 RDI: 0000000000000008 [ 52.027160] RBP: ffff8801d8e77320 R08: dffffc0000000000 R09: ffffed003b1cee53 [ 52.034446] R10: ffffed003b1cee53 R11: 0000000000000003 R12: ffff8801b774a970 [ 52.041728] R13: dffffc0000000000 R14: ffff8801d8e772f8 R15: ffff8801d8e77438 [ 52.049032] FS: 0000000001227880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 52.057272] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.063143] CR2: 0000000020002000 CR3: 00000001bb46d000 CR4: 00000000001406e0 [ 52.070426] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.077713] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.084997] Kernel panic - not syncing: Fatal exception [ 52.091179] Kernel Offset: disabled [ 52.094805] Rebooting in 86400 seconds..