[info] Using makefile-style concurrent boot in runlevel 2. [ 38.198375] audit: type=1800 audit(1539275418.153:21): pid=5719 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 38.233070] audit: type=1800 audit(1539275418.153:22): pid=5719 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.679149] kasan: CONFIG_KASAN_INLINE enabled [ 49.683767] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 49.691196] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 49.697454] CPU: 0 PID: 5871 Comm: syz-executor812 Not tainted 4.19.0-rc7+ #55 [ 49.704814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.714176] RIP: 0010:rb_erase+0x306/0x3710 [ 49.718491] 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 [ 49.737386] RSP: 0018:ffff8801d2c4e918 EFLAGS: 00010202 [ 49.742741] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 49.750347] RDX: 1ffff1003a589d2b RSI: ffffffff8afbc8a0 RDI: 0000000000000008 [ 49.757609] RBP: ffff8801d2c4f320 R08: dffffc0000000000 R09: fffffbfff12d69b0 [ 49.764867] R10: fffffbfff12d69b0 R11: ffffffff896b4d83 R12: ffff8801b8b20970 [ 49.772129] R13: dffffc0000000000 R14: ffff8801d2c4f2f8 R15: ffff8801d2c4f438 [ 49.779390] FS: 00000000018c0880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 49.787604] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.793476] CR2: 0000000020000080 CR3: 00000001d3a12000 CR4: 00000000001406f0 [ 49.800736] Call Trace: [ 49.803317] ? rb_insert_color+0x1460/0x1460 [ 49.807720] ? add_to_page_cache_lru+0x10b0/0x10b0 [ 49.812635] ? lock_downgrade+0x900/0x900 [ 49.816772] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 49.822556] ? mark_held_locks+0x130/0x130 [ 49.826794] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 49.832062] ? rcu_bh_qs+0xc0/0xc0 [ 49.835597] ? unwind_dump+0x190/0x190 [ 49.839482] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.845006] ? mark_held_locks+0x130/0x130 [ 49.849231] ? mark_page_accessed+0xcb0/0x2040 [ 49.853794] ? activate_page+0x1040/0x1040 [ 49.858015] ? activate_page+0x1040/0x1040 [ 49.862254] ? mark_held_locks+0x130/0x130 [ 49.866476] ? kasan_kmalloc+0xc7/0xe0 [ 49.870350] ? kmem_cache_alloc_trace+0x152/0x750 [ 49.875173] ? ima_add_digest_entry+0xcb/0x6a0 [ 49.879755] ? ima_add_template_entry+0x466/0x7f0 [ 49.884595] ? ima_store_template+0x224/0x310 [ 49.889082] ? pagecache_get_page+0x2d8/0xf00 [ 49.893578] ? find_get_pages_contig+0x15b0/0x15b0 [ 49.898587] ? is_bpf_text_address+0xac/0x170 [ 49.903069] ? lock_downgrade+0x900/0x900 [ 49.907201] ? mark_held_locks+0x130/0x130 [ 49.911424] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 49.917206] ? mark_held_locks+0x130/0x130 [ 49.921428] ? ext4_discard_preallocations+0x9b9/0x13c0 [ 49.926775] ? lock_downgrade+0x900/0x900 [ 49.930911] ? kasan_check_read+0x11/0x20 [ 49.935042] ? do_raw_spin_unlock+0xa7/0x2f0 [ 49.939453] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 49.944024] ? mark_held_locks+0x130/0x130 [ 49.948246] ? _raw_spin_unlock+0x2c/0x50 [ 49.952378] ? ext4_discard_preallocations+0x18a/0x13c0 [ 49.957729] ? trace_hardirqs_on+0xbd/0x310 [ 49.962044] ? ext4_exit_mballoc+0xc0/0xc0 [ 49.966285] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 49.971294] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 49.976040] ? modules_open+0xa0/0xa0 [ 49.979826] ? __es_tree_search.isra.12+0x1ba/0x220 [ 49.984828] ? __es_remove_extent+0x9a3/0xba0 [ 49.989311] ? mark_held_locks+0x130/0x130 [ 49.993531] ? lock_downgrade+0x900/0x900 [ 49.997663] ? ext4_es_scan+0x960/0x960 [ 50.001623] ? lock_release+0x970/0x970 [ 50.005587] ? trace_hardirqs_on+0xbd/0x310 [ 50.009894] ? kasan_check_read+0x11/0x20 [ 50.014027] ? clear_inode+0x114/0x3a0 [ 50.017924] ? do_raw_write_trylock+0x1c0/0x1c0 [ 50.022581] ? kasan_check_write+0x14/0x20 [ 50.027057] ? lock_acquire+0x1ed/0x520 [ 50.031021] ? integrity_inode_free+0x77/0x320 [ 50.035601] ? ext4_es_remove_extent+0x151/0x500 [ 50.040354] ? lock_release+0x970/0x970 [ 50.044317] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 50.049406] ? depot_save_stack+0x292/0x470 [ 50.053713] ? kasan_check_write+0x14/0x20 [ 50.057935] ? do_raw_write_lock+0xbd/0x1b0 [ 50.062243] integrity_inode_free+0x12f/0x320 [ 50.066725] security_inode_free+0x19/0x90 [ 50.070946] __destroy_inode+0x328/0x820 [ 50.074996] ? generic_update_time+0x450/0x450 [ 50.079572] ? evict+0x5d8/0x980 [ 50.082925] ? lock_downgrade+0x900/0x900 [ 50.087074] ? __inode_wait_for_writeback+0x2cf/0x380 [ 50.092257] destroy_inode+0xda/0x200 [ 50.096049] ? __destroy_inode+0x820/0x820 [ 50.100266] ? kasan_check_write+0x14/0x20 [ 50.104483] ? do_raw_spin_lock+0xc1/0x200 [ 50.108708] evict+0x5e0/0x980 [ 50.111886] ? jbd2_journal_stop+0x430/0x15d0 [ 50.116365] ? destroy_inode+0x200/0x200 [ 50.120425] ? do_raw_spin_lock+0xc1/0x200 [ 50.124649] ? iput+0x671/0xa90 [ 50.128257] ? lock_downgrade+0x900/0x900 [ 50.132388] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.137910] ? kasan_check_read+0x11/0x20 [ 50.142047] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 50.146613] ? lock_downgrade+0x900/0x900 [ 50.150746] ? ext4_ioctl+0x231b/0x4210 [ 50.154706] iput+0x679/0xa90 [ 50.157800] ? inode_add_lru+0x2a0/0x2a0 [ 50.161846] ? up_write+0x7b/0x220 [ 50.165366] ? up_read+0x110/0x110 [ 50.168889] ? up_read+0x110/0x110 [ 50.172420] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.177950] ? check_preemption_disabled+0x48/0x200 [ 50.182988] ext4_ioctl+0x236f/0x4210 [ 50.186782] ? is_bpf_text_address+0xac/0x170 [ 50.191262] ? ext4_ioctl_group_add+0x560/0x560 [ 50.195921] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 50.201703] ? kasan_check_read+0x11/0x20 [ 50.205839] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 50.211113] ? rcu_bh_qs+0xc0/0xc0 [ 50.214637] ? unwind_dump+0x190/0x190 [ 50.218514] ? is_bpf_text_address+0xd3/0x170 [ 50.222999] ? kernel_text_address+0x79/0xf0 [ 50.227398] ? __kernel_text_address+0xd/0x40 [ 50.231878] ? unwind_get_return_address+0x61/0xa0 [ 50.236793] ? __save_stack_trace+0x8d/0xf0 [ 50.241101] ? save_stack+0xa9/0xd0 [ 50.244708] ? save_stack+0x43/0xd0 [ 50.248319] ? __kasan_slab_free+0x102/0x150 [ 50.252709] ? kasan_slab_free+0xe/0x10 [ 50.256670] ? kmem_cache_free+0x83/0x290 [ 50.260801] ? putname+0xf2/0x130 [ 50.264234] ? do_sys_open+0x54d/0x700 [ 50.268105] ? __x64_sys_openat+0x9d/0x100 [ 50.272327] ? do_syscall_64+0x1b9/0x820 [ 50.276376] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.281729] ? trace_hardirqs_off+0xb8/0x310 [ 50.286118] ? kasan_check_read+0x11/0x20 [ 50.290253] ? do_raw_spin_unlock+0xa7/0x2f0 [ 50.294648] ? trace_hardirqs_on+0x310/0x310 [ 50.299048] ? kasan_check_write+0x14/0x20 [ 50.303270] ? trace_hardirqs_off+0xb8/0x310 [ 50.307676] ? trace_hardirqs_on+0x310/0x310 [ 50.312083] ? ext4_ioctl_group_add+0x560/0x560 [ 50.316740] do_vfs_ioctl+0x1de/0x1720 [ 50.320614] ? trace_hardirqs_on+0xbd/0x310 [ 50.324922] ? ioctl_preallocate+0x300/0x300 [ 50.329315] ? memset+0x31/0x40 [ 50.332583] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.338107] ? smack_file_ioctl+0x210/0x3c0 [ 50.342411] ? fget_raw+0x20/0x20 [ 50.345850] ? smack_file_lock+0x2e0/0x2e0 [ 50.350079] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.355608] ? security_file_ioctl+0x94/0xc0 [ 50.360022] ksys_ioctl+0xa9/0xd0 [ 50.363473] __x64_sys_ioctl+0x73/0xb0 [ 50.367361] do_syscall_64+0x1b9/0x820 [ 50.371234] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 50.376582] ? syscall_return_slowpath+0x5e0/0x5e0 [ 50.381495] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.386324] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.391327] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.396327] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.401347] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.406183] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.411367] RIP: 0033:0x440089 [ 50.414548] 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 [ 50.433460] RSP: 002b:00007fffc5d25918 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 50.441161] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440089 [ 50.448415] RDX: 0000000000440089 RSI: 0000000000006611 RDI: 0000000000000003 [ 50.455672] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 50.462924] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401910 [ 50.470175] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 50.477431] Modules linked in: [ 50.480696] ---[ end trace 941ced5d45a023eb ]--- [ 50.485476] RIP: 0010:rb_erase+0x306/0x3710 [ 50.490177] 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 [ 50.509125] RSP: 0018:ffff8801d2c4e918 EFLAGS: 00010202 [ 50.514492] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 50.521852] RDX: 1ffff1003a589d2b RSI: ffffffff8afbc8a0 RDI: 0000000000000008 [ 50.529161] RBP: ffff8801d2c4f320 R08: dffffc0000000000 R09: fffffbfff12d69b0 [ 50.536500] R10: fffffbfff12d69b0 R11: ffffffff896b4d83 R12: ffff8801b8b20970 [ 50.543769] R13: dffffc0000000000 R14: ffff8801d2c4f2f8 R15: ffff8801d2c4f438 [ 50.551113] FS: 00000000018c0880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 50.559408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.565281] CR2: 0000000020000080 CR3: 00000001d3a12000 CR4: 00000000001406f0 [ 50.572594] Kernel panic - not syncing: Fatal exception [ 50.578821] Kernel Offset: disabled [ 50.582443] Rebooting in 86400 seconds..