[info] Using makefile-style concurrent boot in runlevel 2. [ 24.871850] audit: type=1800 audit(1539959619.484:21): 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 [ 24.891414] audit: type=1800 audit(1539959619.484:22): 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 '10.128.0.45' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.641871] kasan: CONFIG_KASAN_INLINE enabled [ 38.646585] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 38.653934] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 38.660148] CPU: 1 PID: 5332 Comm: syz-executor498 Not tainted 4.19.0-rc7+ #147 [ 38.667573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.676923] RIP: 0010:rb_erase+0x306/0x3710 [ 38.681231] 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 [ 38.700114] RSP: 0018:ffff8801d9286918 EFLAGS: 00010202 [ 38.705458] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.712710] RDX: 1ffff1003b250d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 38.719961] RBP: ffff8801d9287320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 38.727211] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b7737970 [ 38.734462] R13: dffffc0000000000 R14: ffff8801d92872f8 R15: ffff8801d9287438 [ 38.741712] FS: 0000000001726880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 38.749916] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.755798] CR2: 0000000020000080 CR3: 00000001d9374000 CR4: 00000000001406e0 [ 38.763059] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.770307] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.777556] Call Trace: [ 38.780131] ? lockdep_on+0x50/0x50 [ 38.783738] ? rb_insert_color+0x1460/0x1460 [ 38.788129] ? lock_downgrade+0x900/0x900 [ 38.792257] ? noop_count+0x40/0x40 [ 38.795866] ? lock_pin_lock+0x350/0x350 [ 38.799910] ? rcu_bh_qs+0xc0/0xc0 [ 38.803431] ? unwind_dump+0x190/0x190 [ 38.807303] ? kasan_check_read+0x11/0x20 [ 38.811434] ? noop_count+0x40/0x40 [ 38.815043] ? lock_pin_lock+0x350/0x350 [ 38.819086] ? mark_held_locks+0x130/0x130 [ 38.823307] ? check_usage_forwards+0x3e0/0x3e0 [ 38.827957] ? __bfs+0x385/0x7a0 [ 38.831307] ? check_usage+0x1a9/0x790 [ 38.835177] ? lock_pin_lock+0x350/0x350 [ 38.839218] ? check_usage_forwards+0x3e0/0x3e0 [ 38.843893] ? __bfs+0x385/0x7a0 [ 38.847244] ? lockdep_on+0x50/0x50 [ 38.850855] ? lock_pin_lock+0x350/0x350 [ 38.854904] ? mark_held_locks+0x130/0x130 [ 38.859119] ? kasan_check_read+0x11/0x20 [ 38.863246] ? __lock_acquire+0x2881/0x4ec0 [ 38.867555] ? mark_held_locks+0x130/0x130 [ 38.871777] ? print_usage_bug+0xc0/0xc0 [ 38.875827] ? _raw_spin_unlock+0x2c/0x50 [ 38.879960] ? graph_lock+0x170/0x170 [ 38.883767] ? ext4_exit_mballoc+0xc0/0xc0 [ 38.887998] ? __lock_acquire+0x7ec/0x4ec0 [ 38.892214] ? find_held_lock+0x36/0x1c0 [ 38.896260] ? mark_held_locks+0x130/0x130 [ 38.900477] ? lock_downgrade+0x900/0x900 [ 38.904608] ? ext4_es_scan+0x960/0x960 [ 38.908566] ? do_raw_write_trylock+0x1c0/0x1c0 [ 38.913217] ? kasan_check_write+0x14/0x20 [ 38.917437] ? lock_acquire+0x1ed/0x520 [ 38.921392] ? integrity_inode_free+0x77/0x320 [ 38.925970] ? ext4_es_remove_extent+0x151/0x500 [ 38.930707] ? lock_release+0x970/0x970 [ 38.934664] ? kasan_check_write+0x14/0x20 [ 38.938877] ? do_raw_write_lock+0xbd/0x1b0 [ 38.943180] integrity_inode_free+0x12f/0x320 [ 38.947659] security_inode_free+0x19/0x90 [ 38.951876] __destroy_inode+0x328/0x820 [ 38.955923] ? generic_update_time+0x450/0x450 [ 38.960490] ? evict+0x5d8/0x980 [ 38.963844] ? lock_downgrade+0x900/0x900 [ 38.967976] ? __inode_wait_for_writeback+0x2cf/0x380 [ 38.973164] destroy_inode+0xda/0x200 [ 38.976947] ? __destroy_inode+0x820/0x820 [ 38.981164] ? kasan_check_write+0x14/0x20 [ 38.985383] ? do_raw_spin_lock+0xc1/0x200 [ 38.989598] evict+0x5e0/0x980 [ 38.992946] ? destroy_inode+0x200/0x200 [ 38.996990] ? iput+0x671/0xa90 [ 39.000254] ? lock_downgrade+0x900/0x900 [ 39.004385] ? kasan_check_read+0x11/0x20 [ 39.008691] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.013254] ? lock_downgrade+0x900/0x900 [ 39.017388] iput+0x679/0xa90 [ 39.020475] ? inode_add_lru+0x2a0/0x2a0 [ 39.024531] ? up_write+0x7b/0x220 [ 39.028062] ? up_read+0x110/0x110 [ 39.031597] ? up_read+0x110/0x110 [ 39.035124] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.040644] ? check_preemption_disabled+0x48/0x200 [ 39.045648] ext4_ioctl+0x236f/0x4210 [ 39.049433] ? is_bpf_text_address+0xac/0x170 [ 39.053913] ? ext4_ioctl_group_add+0x560/0x560 [ 39.058568] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 39.064351] ? kasan_check_read+0x11/0x20 [ 39.068491] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.073748] ? rcu_bh_qs+0xc0/0xc0 [ 39.077286] ? rcu_bh_qs+0xc0/0xc0 [ 39.080852] ? unwind_dump+0x190/0x190 [ 39.084725] ? is_bpf_text_address+0xd3/0x170 [ 39.089201] ? kernel_text_address+0x79/0xf0 [ 39.093592] ? __kernel_text_address+0xd/0x40 [ 39.098080] ? unwind_get_return_address+0x61/0xa0 [ 39.102995] ? __save_stack_trace+0x8d/0xf0 [ 39.107307] ? save_stack+0xa9/0xd0 [ 39.110920] ? save_stack+0x43/0xd0 [ 39.114526] ? __kasan_slab_free+0x102/0x150 [ 39.118914] ? kasan_slab_free+0xe/0x10 [ 39.122866] ? kmem_cache_free+0x83/0x290 [ 39.126994] ? putname+0xf2/0x130 [ 39.130425] ? do_sys_open+0x54d/0x700 [ 39.134299] ? __x64_sys_openat+0x9d/0x100 [ 39.138526] ? do_syscall_64+0x1b9/0x820 [ 39.142570] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.147936] ? trace_hardirqs_off+0xb8/0x310 [ 39.152329] ? kasan_check_read+0x11/0x20 [ 39.156460] ? do_raw_spin_unlock+0xa7/0x2f0 [ 39.160850] ? trace_hardirqs_on+0x310/0x310 [ 39.165241] ? kasan_check_write+0x14/0x20 [ 39.169462] ? trace_hardirqs_off+0xb8/0x310 [ 39.173851] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.179371] ? check_preemption_disabled+0x48/0x200 [ 39.184376] ? check_preemption_disabled+0x48/0x200 [ 39.189376] ? ext4_ioctl_group_add+0x560/0x560 [ 39.194024] do_vfs_ioctl+0x1de/0x1720 [ 39.197912] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 39.203191] ? ioctl_preallocate+0x300/0x300 [ 39.207587] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.213124] ? __fget_light+0x2e9/0x430 [ 39.217085] ? fget_raw+0x20/0x20 [ 39.220519] ? putname+0xf2/0x130 [ 39.223956] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.228973] ? kmem_cache_free+0x24f/0x290 [ 39.233193] ? putname+0xf7/0x130 [ 39.236634] ? do_syscall_64+0x9a/0x820 [ 39.240592] ? do_syscall_64+0x9a/0x820 [ 39.244564] ? lockdep_hardirqs_on+0x421/0x5c0 [ 39.249131] ? security_file_ioctl+0x94/0xc0 [ 39.253521] ksys_ioctl+0xa9/0xd0 [ 39.256961] __x64_sys_ioctl+0x73/0xb0 [ 39.260833] do_syscall_64+0x1b9/0x820 [ 39.264705] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 39.270055] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.274972] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.279806] ? trace_hardirqs_on_caller+0x310/0x310 [ 39.284810] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.289808] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.294810] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.299640] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.304808] RIP: 0033:0x440009 [ 39.307982] 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 [ 39.327078] RSP: 002b:00007fffe1ad59d8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 39.334770] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 39.342036] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 39.349295] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 39.356576] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 39.363841] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 39.371097] Modules linked in: [ 39.374706] ---[ end trace ed878bc17278a5e9 ]--- [ 39.379490] RIP: 0010:rb_erase+0x306/0x3710 [ 39.383813] 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 [ 39.402952] RSP: 0018:ffff8801d9286918 EFLAGS: 00010202 [ 39.408354] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 39.415866] RDX: 1ffff1003b250d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 39.423128] RBP: ffff8801d9287320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 39.430444] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b7737970 [ 39.437747] R13: dffffc0000000000 R14: ffff8801d92872f8 R15: ffff8801d9287438 [ 39.445144] FS: 0000000001726880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 39.453366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.459319] CR2: 0000000020000080 CR3: 00000001d9374000 CR4: 00000000001406e0 [ 39.466623] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.473888] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.481179] Kernel panic - not syncing: Fatal exception [ 39.487413] Kernel Offset: disabled [ 39.491035] Rebooting in 86400 seconds..