[info] Using makefile-style concurrent boot in runlevel 2. [ 23.876712] audit: type=1800 audit(1539377609.248:21): pid=5170 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 23.903301] audit: type=1800 audit(1539377609.258:22): pid=5170 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 '10.128.0.64' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.714107] kasan: CONFIG_KASAN_INLINE enabled [ 36.718789] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.726389] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 36.732643] CPU: 1 PID: 5325 Comm: syz-executor491 Not tainted 4.19.0-rc7+ #140 [ 36.740075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.749420] RIP: 0010:rb_erase+0x306/0x3710 [ 36.753724] 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 [ 36.772622] RSP: 0018:ffff8801beede918 EFLAGS: 00010202 [ 36.777964] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 36.785220] RDX: 1ffff10037ddbd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 36.792470] RBP: ffff8801beedf320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 36.799727] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801c3827530 [ 36.806977] R13: dffffc0000000000 R14: ffff8801beedf2f8 R15: ffff8801beedf438 [ 36.814228] FS: 00000000014f5880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 36.822451] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.828311] CR2: 0000000020000180 CR3: 00000001d9659000 CR4: 00000000001406e0 [ 36.835562] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.842811] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.850078] Call Trace: [ 36.852680] ? lockdep_on+0x50/0x50 [ 36.856292] ? rb_insert_color+0x1460/0x1460 [ 36.860688] ? noop_count+0x40/0x40 [ 36.864297] ? lock_pin_lock+0x350/0x350 [ 36.868345] ? noop_count+0x40/0x40 [ 36.871954] ? kasan_check_read+0x11/0x20 [ 36.876082] ? noop_count+0x40/0x40 [ 36.879691] ? noop_count+0x40/0x40 [ 36.883301] ? lock_pin_lock+0x350/0x350 [ 36.887343] ? mark_held_locks+0x130/0x130 [ 36.891561] ? check_usage_forwards+0x3e0/0x3e0 [ 36.896213] ? __bfs+0x385/0x7a0 [ 36.899559] ? noop_count+0x40/0x40 [ 36.903166] ? check_usage+0x1a9/0x790 [ 36.907031] ? lock_pin_lock+0x350/0x350 [ 36.911077] ? check_usage_forwards+0x3e0/0x3e0 [ 36.915814] ? __bfs+0x385/0x7a0 [ 36.919161] ? __lock_acquire+0x7ec/0x4ec0 [ 36.923376] ? lockdep_on+0x50/0x50 [ 36.926983] ? lock_pin_lock+0x350/0x350 [ 36.931029] ? mark_held_locks+0x130/0x130 [ 36.935242] ? kasan_check_read+0x11/0x20 [ 36.939370] ? __lock_acquire+0x2881/0x4ec0 [ 36.943679] ? mark_held_locks+0x130/0x130 [ 36.947909] ? print_usage_bug+0xc0/0xc0 [ 36.951956] ? _raw_spin_unlock+0x2c/0x50 [ 36.956086] ? graph_lock+0x170/0x170 [ 36.959871] ? ext4_exit_mballoc+0xc0/0xc0 [ 36.964086] ? __lock_acquire+0x7ec/0x4ec0 [ 36.968301] ? find_held_lock+0x36/0x1c0 [ 36.972345] ? mark_held_locks+0x130/0x130 [ 36.976564] ? lock_downgrade+0x900/0x900 [ 36.980693] ? ext4_es_scan+0x960/0x960 [ 36.984653] ? do_raw_write_trylock+0x1c0/0x1c0 [ 36.989320] ? kasan_check_write+0x14/0x20 [ 36.993551] ? lock_acquire+0x1ed/0x520 [ 36.997507] ? integrity_inode_free+0x77/0x320 [ 37.002069] ? ext4_es_remove_extent+0x151/0x500 [ 37.006808] ? lock_release+0x970/0x970 [ 37.010772] ? kasan_check_write+0x14/0x20 [ 37.015002] ? do_raw_write_lock+0xbd/0x1b0 [ 37.019318] integrity_inode_free+0x12f/0x320 [ 37.023811] security_inode_free+0x19/0x90 [ 37.028026] __destroy_inode+0x328/0x820 [ 37.032070] ? generic_update_time+0x450/0x450 [ 37.036633] ? evict+0x5d8/0x980 [ 37.039981] ? lock_downgrade+0x900/0x900 [ 37.044111] ? __inode_wait_for_writeback+0x2cf/0x380 [ 37.049283] destroy_inode+0xda/0x200 [ 37.053079] ? __destroy_inode+0x820/0x820 [ 37.057294] ? kasan_check_write+0x14/0x20 [ 37.061508] ? do_raw_spin_lock+0xc1/0x200 [ 37.065725] evict+0x5e0/0x980 [ 37.068898] ? destroy_inode+0x200/0x200 [ 37.072942] ? iput+0x671/0xa90 [ 37.076201] ? lock_downgrade+0x900/0x900 [ 37.080337] ? kasan_check_read+0x11/0x20 [ 37.084465] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.089025] ? lock_downgrade+0x900/0x900 [ 37.093158] iput+0x679/0xa90 [ 37.096247] ? inode_add_lru+0x2a0/0x2a0 [ 37.100289] ? up_write+0x7b/0x220 [ 37.103826] ? up_read+0x110/0x110 [ 37.107345] ? up_read+0x110/0x110 [ 37.110870] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.116390] ? check_preemption_disabled+0x48/0x200 [ 37.121390] ext4_ioctl+0x236f/0x4210 [ 37.125173] ? is_bpf_text_address+0xac/0x170 [ 37.129650] ? ext4_ioctl_group_add+0x560/0x560 [ 37.134312] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.140109] ? kasan_check_read+0x11/0x20 [ 37.144242] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.149502] ? rcu_bh_qs+0xc0/0xc0 [ 37.153024] ? rcu_bh_qs+0xc0/0xc0 [ 37.156544] ? unwind_dump+0x190/0x190 [ 37.160418] ? is_bpf_text_address+0xd3/0x170 [ 37.164896] ? kernel_text_address+0x79/0xf0 [ 37.169285] ? __kernel_text_address+0xd/0x40 [ 37.173788] ? unwind_get_return_address+0x61/0xa0 [ 37.178700] ? __save_stack_trace+0x8d/0xf0 [ 37.183009] ? save_stack+0xa9/0xd0 [ 37.186616] ? save_stack+0x43/0xd0 [ 37.190224] ? __kasan_slab_free+0x102/0x150 [ 37.194611] ? kasan_slab_free+0xe/0x10 [ 37.198564] ? kmem_cache_free+0x83/0x290 [ 37.202691] ? putname+0xf2/0x130 [ 37.206124] ? do_sys_open+0x54d/0x700 [ 37.209992] ? __x64_sys_openat+0x9d/0x100 [ 37.214212] ? do_syscall_64+0x1b9/0x820 [ 37.218254] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.223604] ? trace_hardirqs_off+0xb8/0x310 [ 37.227989] ? kasan_check_read+0x11/0x20 [ 37.232120] ? do_raw_spin_unlock+0xa7/0x2f0 [ 37.236522] ? trace_hardirqs_on+0x310/0x310 [ 37.240910] ? kasan_check_write+0x14/0x20 [ 37.245125] ? trace_hardirqs_off+0xb8/0x310 [ 37.249515] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.255033] ? check_preemption_disabled+0x48/0x200 [ 37.260030] ? check_preemption_disabled+0x48/0x200 [ 37.265045] ? ext4_ioctl_group_add+0x560/0x560 [ 37.269697] do_vfs_ioctl+0x1de/0x1720 [ 37.273568] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.278827] ? ioctl_preallocate+0x300/0x300 [ 37.283219] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.288739] ? __fget_light+0x2e9/0x430 [ 37.292731] ? fget_raw+0x20/0x20 [ 37.296165] ? putname+0xf2/0x130 [ 37.299601] ? rcu_read_lock_sched_held+0x108/0x120 [ 37.304598] ? kmem_cache_free+0x24f/0x290 [ 37.308814] ? putname+0xf7/0x130 [ 37.312250] ? do_syscall_64+0x9a/0x820 [ 37.316209] ? do_syscall_64+0x9a/0x820 [ 37.320164] ? lockdep_hardirqs_on+0x421/0x5c0 [ 37.324729] ? security_file_ioctl+0x94/0xc0 [ 37.329118] ksys_ioctl+0xa9/0xd0 [ 37.332553] __x64_sys_ioctl+0x73/0xb0 [ 37.336421] do_syscall_64+0x1b9/0x820 [ 37.340290] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.345634] ? syscall_return_slowpath+0x5e0/0x5e0 [ 37.350542] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.355364] ? trace_hardirqs_on_caller+0x310/0x310 [ 37.360362] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 37.365363] ? prepare_exit_to_usermode+0x291/0x3b0 [ 37.370369] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.375204] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.380378] RIP: 0033:0x440089 [ 37.383555] 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 [ 37.402491] RSP: 002b:00007fffcb31e068 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 37.410189] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440089 [ 37.417445] RDX: 0000000000440089 RSI: 0000000000006611 RDI: 0000000000000003 [ 37.424822] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 37.432074] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401910 [ 37.439379] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 37.446644] Modules linked in: [ 37.449930] ---[ end trace b420b3e04b044a36 ]--- [ 37.454702] RIP: 0010:rb_erase+0x306/0x3710 [ 37.459013] 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 [ 37.478170] RSP: 0018:ffff8801beede918 EFLAGS: 00010202 [ 37.483580] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.490920] RDX: 1ffff10037ddbd2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 37.498178] RBP: ffff8801beedf320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 37.505463] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801c3827530 [ 37.512754] R13: dffffc0000000000 R14: ffff8801beedf2f8 R15: ffff8801beedf438 [ 37.520047] FS: 00000000014f5880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 37.528273] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.534185] CR2: 0000000020000180 CR3: 00000001d9659000 CR4: 00000000001406e0 [ 37.541479] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.548737] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.556024] Kernel panic - not syncing: Fatal exception [ 37.562273] Kernel Offset: disabled [ 37.565893] Rebooting in 86400 seconds..