[info] Using makefile-style concurrent boot in runlevel 2. [ 25.947770] audit: type=1800 audit(1539911717.396:21): pid=5176 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.974489] audit: type=1800 audit(1539911717.396:22): pid=5176 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 '10.128.0.47' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.481864] kasan: CONFIG_KASAN_INLINE enabled [ 37.486617] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.493970] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.500185] CPU: 0 PID: 5329 Comm: syz-executor767 Not tainted 4.19.0-rc7+ #146 [ 37.507617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.516962] RIP: 0010:rb_erase+0x306/0x3710 [ 37.521264] 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 [ 37.540166] RSP: 0018:ffff8801c628e918 EFLAGS: 00010202 [ 37.545511] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 37.552760] RDX: 1ffff10038c51d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 37.560011] RBP: ffff8801c628f320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 37.567294] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b6f43970 [ 37.574542] R13: dffffc0000000000 R14: ffff8801c628f2f8 R15: ffff8801c628f438 [ 37.581793] FS: 0000000000fb0880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 37.590001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.595863] CR2: 0000000020000080 CR3: 00000001bb7ed000 CR4: 00000000001406f0 [ 37.603119] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.610368] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.617616] Call Trace: [ 37.620188] ? lockdep_on+0x50/0x50 [ 37.623810] ? rb_insert_color+0x1460/0x1460 [ 37.628206] ? lock_downgrade+0x900/0x900 [ 37.632361] ? noop_count+0x40/0x40 [ 37.635975] ? lock_pin_lock+0x350/0x350 [ 37.640022] ? rcu_bh_qs+0xc0/0xc0 [ 37.643541] ? unwind_dump+0x190/0x190 [ 37.647412] ? kasan_check_read+0x11/0x20 [ 37.651544] ? noop_count+0x40/0x40 [ 37.655153] ? lock_pin_lock+0x350/0x350 [ 37.659203] ? mark_held_locks+0x130/0x130 [ 37.663422] ? check_usage_forwards+0x3e0/0x3e0 [ 37.668096] ? __bfs+0x385/0x7a0 [ 37.671446] ? check_usage+0x1a9/0x790 [ 37.675326] ? lock_pin_lock+0x350/0x350 [ 37.679376] ? check_usage_forwards+0x3e0/0x3e0 [ 37.684040] ? __bfs+0x385/0x7a0 [ 37.687396] ? modules_open+0xa0/0xa0 [ 37.691176] ? lockdep_on+0x50/0x50 [ 37.694792] ? lock_pin_lock+0x350/0x350 [ 37.698843] ? mark_held_locks+0x130/0x130 [ 37.703064] ? kasan_check_read+0x11/0x20 [ 37.707203] ? __lock_acquire+0x2881/0x4ec0 [ 37.711526] ? mark_held_locks+0x130/0x130 [ 37.715746] ? print_usage_bug+0xc0/0xc0 [ 37.719790] ? _raw_spin_unlock+0x2c/0x50 [ 37.723924] ? graph_lock+0x170/0x170 [ 37.727721] ? ext4_exit_mballoc+0xc0/0xc0 [ 37.731943] ? __lock_acquire+0x7ec/0x4ec0 [ 37.736167] ? find_held_lock+0x36/0x1c0 [ 37.740234] ? mark_held_locks+0x130/0x130 [ 37.744477] ? lock_downgrade+0x900/0x900 [ 37.748617] ? ext4_es_scan+0x960/0x960 [ 37.752574] ? lock_release+0x970/0x970 [ 37.756538] ? do_raw_write_trylock+0x1c0/0x1c0 [ 37.761191] ? kasan_check_write+0x14/0x20 [ 37.765439] ? lock_acquire+0x1ed/0x520 [ 37.769407] ? integrity_inode_free+0x77/0x320 [ 37.773973] ? ext4_es_remove_extent+0x151/0x500 [ 37.778715] ? lock_release+0x970/0x970 [ 37.782677] ? kasan_check_write+0x14/0x20 [ 37.786895] ? do_raw_write_lock+0xbd/0x1b0 [ 37.791209] integrity_inode_free+0x12f/0x320 [ 37.795709] security_inode_free+0x19/0x90 [ 37.799928] __destroy_inode+0x328/0x820 [ 37.803977] ? generic_update_time+0x450/0x450 [ 37.808563] ? evict+0x5d8/0x980 [ 37.811922] ? lock_downgrade+0x900/0x900 [ 37.816055] ? __inode_wait_for_writeback+0x2cf/0x380 [ 37.821236] destroy_inode+0xda/0x200 [ 37.825022] ? __destroy_inode+0x820/0x820 [ 37.829245] ? kasan_check_write+0x14/0x20 [ 37.833471] ? do_raw_spin_lock+0xc1/0x200 [ 37.837710] evict+0x5e0/0x980 [ 37.840888] ? destroy_inode+0x200/0x200 [ 37.844930] ? iput+0x671/0xa90 [ 37.848202] ? lock_downgrade+0x900/0x900 [ 37.852333] ? kasan_check_read+0x11/0x20 [ 37.856485] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.861052] ? lock_downgrade+0x900/0x900 [ 37.865182] iput+0x679/0xa90 [ 37.868277] ? inode_add_lru+0x2a0/0x2a0 [ 37.872320] ? up_write+0x7b/0x220 [ 37.875843] ? up_read+0x110/0x110 [ 37.879363] ? up_read+0x110/0x110 [ 37.882885] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 37.888409] ? check_preemption_disabled+0x48/0x200 [ 37.893412] ext4_ioctl+0x236f/0x4210 [ 37.897206] ? is_bpf_text_address+0xac/0x170 [ 37.901688] ? ext4_ioctl_group_add+0x560/0x560 [ 37.906342] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 37.912121] ? kasan_check_read+0x11/0x20 [ 37.916257] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 37.921513] ? rcu_bh_qs+0xc0/0xc0 [ 37.925032] ? rcu_bh_qs+0xc0/0xc0 [ 37.928556] ? unwind_dump+0x190/0x190 [ 37.932428] ? is_bpf_text_address+0xd3/0x170 [ 37.936907] ? kernel_text_address+0x79/0xf0 [ 37.941297] ? __kernel_text_address+0xd/0x40 [ 37.945777] ? unwind_get_return_address+0x61/0xa0 [ 37.950705] ? __save_stack_trace+0x8d/0xf0 [ 37.955011] ? save_stack+0xa9/0xd0 [ 37.958622] ? save_stack+0x43/0xd0 [ 37.962229] ? __kasan_slab_free+0x102/0x150 [ 37.966619] ? kasan_slab_free+0xe/0x10 [ 37.970574] ? kmem_cache_free+0x83/0x290 [ 37.974713] ? putname+0xf2/0x130 [ 37.978161] ? do_sys_open+0x54d/0x700 [ 37.982035] ? __x64_sys_openat+0x9d/0x100 [ 37.986261] ? do_syscall_64+0x1b9/0x820 [ 37.990308] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.995659] ? trace_hardirqs_off+0xb8/0x310 [ 38.000050] ? kasan_check_read+0x11/0x20 [ 38.004180] ? do_raw_spin_unlock+0xa7/0x2f0 [ 38.008579] ? trace_hardirqs_on+0x310/0x310 [ 38.012969] ? kasan_check_write+0x14/0x20 [ 38.017188] ? trace_hardirqs_off+0xb8/0x310 [ 38.021591] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.027115] ? check_preemption_disabled+0x48/0x200 [ 38.032112] ? check_preemption_disabled+0x48/0x200 [ 38.037113] ? ext4_ioctl_group_add+0x560/0x560 [ 38.041764] do_vfs_ioctl+0x1de/0x1720 [ 38.045638] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 38.050900] ? ioctl_preallocate+0x300/0x300 [ 38.055299] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.060829] ? __fget_light+0x2e9/0x430 [ 38.064801] ? fget_raw+0x20/0x20 [ 38.068237] ? putname+0xf2/0x130 [ 38.071676] ? rcu_read_lock_sched_held+0x108/0x120 [ 38.076675] ? kmem_cache_free+0x24f/0x290 [ 38.080892] ? putname+0xf7/0x130 [ 38.084329] ? do_syscall_64+0x9a/0x820 [ 38.088302] ? do_syscall_64+0x9a/0x820 [ 38.092261] ? lockdep_hardirqs_on+0x421/0x5c0 [ 38.096829] ? security_file_ioctl+0x94/0xc0 [ 38.101224] ksys_ioctl+0xa9/0xd0 [ 38.104661] __x64_sys_ioctl+0x73/0xb0 [ 38.108533] do_syscall_64+0x1b9/0x820 [ 38.112405] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.117754] ? syscall_return_slowpath+0x5e0/0x5e0 [ 38.122665] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.127492] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.132490] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.137510] ? prepare_exit_to_usermode+0x291/0x3b0 [ 38.142510] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.147356] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.152545] RIP: 0033:0x440009 [ 38.155729] 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 [ 38.174611] RSP: 002b:00007ffc1bec7138 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 38.182300] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440009 [ 38.189550] RDX: 0000000000440009 RSI: 0000000000006611 RDI: 0000000000000003 [ 38.197071] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 38.204322] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401890 [ 38.211571] R13: 0000000000401920 R14: 0000000000000000 R15: 0000000000000000 [ 38.218840] Modules linked in: [ 38.222149] ---[ end trace 41f91a06c88b0416 ]--- [ 38.226963] RIP: 0010:rb_erase+0x306/0x3710 [ 38.231286] 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 [ 38.250208] RSP: 0018:ffff8801c628e918 EFLAGS: 00010202 [ 38.255589] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 38.263275] RDX: 1ffff10038c51d2b RSI: ffffffff8afbc860 RDI: 0000000000000008 [ 38.270558] RBP: ffff8801c628f320 R08: dffffc0000000000 R09: fffffbfff12d69a0 [ 38.277839] R10: fffffbfff12d69a0 R11: ffffffff896b4d03 R12: ffff8801b6f43970 [ 38.285096] R13: dffffc0000000000 R14: ffff8801c628f2f8 R15: ffff8801c628f438 [ 38.292379] FS: 0000000000fb0880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 38.300620] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.306517] CR2: 0000000020000080 CR3: 00000001bb7ed000 CR4: 00000000001406f0 [ 38.313789] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.321070] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.328388] Kernel panic - not syncing: Fatal exception [ 38.334632] Kernel Offset: disabled [ 38.338409] Rebooting in 86400 seconds..